+ UIComboTreeView：新增下拉框TreeView

SunnyUI.Demo/Controls/FCombobox.Designer.cs

@@ -28,6 +28,54 @@
         /// </summary>
         private void InitializeComponent()
         {
+            System.Windows.Forms.TreeNode treeNode29 = new System.Windows.Forms.TreeNode("节点0");
+            System.Windows.Forms.TreeNode treeNode30 = new System.Windows.Forms.TreeNode("节点1");
+            System.Windows.Forms.TreeNode treeNode31 = new System.Windows.Forms.TreeNode("节点2");
+            System.Windows.Forms.TreeNode treeNode32 = new System.Windows.Forms.TreeNode("节点3");
+            System.Windows.Forms.TreeNode treeNode25 = new System.Windows.Forms.TreeNode("节点0");
+            System.Windows.Forms.TreeNode treeNode26 = new System.Windows.Forms.TreeNode("节点1");
+            System.Windows.Forms.TreeNode treeNode27 = new System.Windows.Forms.TreeNode("节点2");
+            System.Windows.Forms.TreeNode treeNode28 = new System.Windows.Forms.TreeNode("节点3");
+            System.Windows.Forms.TreeNode treeNode1 = new System.Windows.Forms.TreeNode("节点0");
+            System.Windows.Forms.TreeNode treeNode2 = new System.Windows.Forms.TreeNode("节点1");
+            System.Windows.Forms.TreeNode treeNode3 = new System.Windows.Forms.TreeNode("节点2");
+            System.Windows.Forms.TreeNode treeNode4 = new System.Windows.Forms.TreeNode("节点3");
+            System.Windows.Forms.TreeNode treeNode5 = new System.Windows.Forms.TreeNode("节点0", new System.Windows.Forms.TreeNode[] {
+            treeNode1,
+            treeNode2,
+            treeNode3,
+            treeNode4});
+            System.Windows.Forms.TreeNode treeNode6 = new System.Windows.Forms.TreeNode("节点4");
+            System.Windows.Forms.TreeNode treeNode7 = new System.Windows.Forms.TreeNode("节点5");
+            System.Windows.Forms.TreeNode treeNode8 = new System.Windows.Forms.TreeNode("节点6");
+            System.Windows.Forms.TreeNode treeNode9 = new System.Windows.Forms.TreeNode("节点7");
+            System.Windows.Forms.TreeNode treeNode10 = new System.Windows.Forms.TreeNode("节点1", new System.Windows.Forms.TreeNode[] {
+            treeNode6,
+            treeNode7,
+            treeNode8,
+            treeNode9});
+            System.Windows.Forms.TreeNode treeNode11 = new System.Windows.Forms.TreeNode("节点2");
+            System.Windows.Forms.TreeNode treeNode12 = new System.Windows.Forms.TreeNode("节点3");
+            System.Windows.Forms.TreeNode treeNode13 = new System.Windows.Forms.TreeNode("节点0");
+            System.Windows.Forms.TreeNode treeNode14 = new System.Windows.Forms.TreeNode("节点1");
+            System.Windows.Forms.TreeNode treeNode15 = new System.Windows.Forms.TreeNode("节点2");
+            System.Windows.Forms.TreeNode treeNode16 = new System.Windows.Forms.TreeNode("节点3");
+            System.Windows.Forms.TreeNode treeNode17 = new System.Windows.Forms.TreeNode("节点0", new System.Windows.Forms.TreeNode[] {
+            treeNode13,
+            treeNode14,
+            treeNode15,
+            treeNode16});
+            System.Windows.Forms.TreeNode treeNode18 = new System.Windows.Forms.TreeNode("节点4");
+            System.Windows.Forms.TreeNode treeNode19 = new System.Windows.Forms.TreeNode("节点5");
+            System.Windows.Forms.TreeNode treeNode20 = new System.Windows.Forms.TreeNode("节点6");
+            System.Windows.Forms.TreeNode treeNode21 = new System.Windows.Forms.TreeNode("节点7");
+            System.Windows.Forms.TreeNode treeNode22 = new System.Windows.Forms.TreeNode("节点1", new System.Windows.Forms.TreeNode[] {
+            treeNode18,
+            treeNode19,
+            treeNode20,
+            treeNode21});
+            System.Windows.Forms.TreeNode treeNode23 = new System.Windows.Forms.TreeNode("节点2");
+            System.Windows.Forms.TreeNode treeNode24 = new System.Windows.Forms.TreeNode("节点3");
             this.uiLine8 = new Sunny.UI.UILine();
             this.uiDatetimePicker1 = new Sunny.UI.UIDatetimePicker();
             this.uiColorPicker1 = new Sunny.UI.UIColorPicker();
@@ -39,11 +87,21 @@
             this.uiDatePicker1 = new Sunny.UI.UIDatePicker();
             this.uiComboBox2 = new Sunny.UI.UIComboBox();
             this.uiComboBox1 = new Sunny.UI.UIComboBox();
+            this.uiComboTreeView1 = new Sunny.UI.UIComboTreeView();
+            this.uiLine1 = new Sunny.UI.UILine();
+            this.uiComboTreeView2 = new Sunny.UI.UIComboTreeView();
+            this.uiComboTreeView3 = new Sunny.UI.UIComboTreeView();
+            this.uiComboTreeView4 = new Sunny.UI.UIComboTreeView();
             this.PagePanel.SuspendLayout();
             this.SuspendLayout();
             // 
             // PagePanel
             // 
+            this.PagePanel.Controls.Add(this.uiComboTreeView3);
+            this.PagePanel.Controls.Add(this.uiComboTreeView4);
+            this.PagePanel.Controls.Add(this.uiComboTreeView2);
+            this.PagePanel.Controls.Add(this.uiLine1);
+            this.PagePanel.Controls.Add(this.uiComboTreeView1);
             this.PagePanel.Controls.Add(this.uiLine8);
             this.PagePanel.Controls.Add(this.uiDatetimePicker1);
             this.PagePanel.Controls.Add(this.uiColorPicker1);
@@ -76,7 +134,7 @@
             this.uiDatetimePicker1.MaxLength = 19;
             this.uiDatetimePicker1.MinimumSize = new System.Drawing.Size(63, 0);
             this.uiDatetimePicker1.Name = "uiDatetimePicker1";
-            this.uiDatetimePicker1.Padding = new System.Windows.Forms.Padding(0, 0, 30, 0);
+            this.uiDatetimePicker1.Padding = new System.Windows.Forms.Padding(0, 0, 30, 2);
             this.uiDatetimePicker1.Size = new System.Drawing.Size(306, 29);
             this.uiDatetimePicker1.SymbolDropDown = 61555;
             this.uiDatetimePicker1.SymbolNormal = 61555;
@@ -95,11 +153,12 @@
             this.uiColorPicker1.Margin = new System.Windows.Forms.Padding(4, 5, 4, 5);
             this.uiColorPicker1.MinimumSize = new System.Drawing.Size(63, 0);
             this.uiColorPicker1.Name = "uiColorPicker1";
-            this.uiColorPicker1.Padding = new System.Windows.Forms.Padding(0, 0, 30, 0);
+            this.uiColorPicker1.Padding = new System.Windows.Forms.Padding(0, 0, 30, 2);
             this.uiColorPicker1.Size = new System.Drawing.Size(150, 29);
             this.uiColorPicker1.TabIndex = 40;
             this.uiColorPicker1.Text = "uiColorPicker1";
             this.uiColorPicker1.TextAlignment = System.Drawing.ContentAlignment.MiddleLeft;
+            this.uiColorPicker1.Value = System.Drawing.Color.FromArgb(((int)(((byte)(80)))), ((int)(((byte)(160)))), ((int)(((byte)(255)))));
             // 
             // uiLine7
             // 
@@ -132,7 +191,7 @@
             this.uiTimePicker1.MaxLength = 8;
             this.uiTimePicker1.MinimumSize = new System.Drawing.Size(63, 0);
             this.uiTimePicker1.Name = "uiTimePicker1";
-            this.uiTimePicker1.Padding = new System.Windows.Forms.Padding(0, 0, 30, 0);
+            this.uiTimePicker1.Padding = new System.Windows.Forms.Padding(0, 0, 30, 2);
             this.uiTimePicker1.Size = new System.Drawing.Size(150, 29);
             this.uiTimePicker1.SymbolDropDown = 61555;
             this.uiTimePicker1.SymbolNormal = 61555;
@@ -173,7 +232,7 @@
             this.uiDatePicker1.MaxLength = 10;
             this.uiDatePicker1.MinimumSize = new System.Drawing.Size(63, 0);
             this.uiDatePicker1.Name = "uiDatePicker1";
-            this.uiDatePicker1.Padding = new System.Windows.Forms.Padding(0, 0, 30, 0);
+            this.uiDatePicker1.Padding = new System.Windows.Forms.Padding(0, 0, 30, 2);
             this.uiDatePicker1.Size = new System.Drawing.Size(150, 29);
             this.uiDatePicker1.SymbolDropDown = 61555;
             this.uiDatePicker1.SymbolNormal = 61555;
@@ -199,7 +258,7 @@
             this.uiComboBox2.Margin = new System.Windows.Forms.Padding(4, 5, 4, 5);
             this.uiComboBox2.MinimumSize = new System.Drawing.Size(63, 0);
             this.uiComboBox2.Name = "uiComboBox2";
-            this.uiComboBox2.Padding = new System.Windows.Forms.Padding(0, 0, 30, 0);
+            this.uiComboBox2.Padding = new System.Windows.Forms.Padding(0, 0, 30, 2);
             this.uiComboBox2.Size = new System.Drawing.Size(150, 29);
             this.uiComboBox2.TabIndex = 33;
             this.uiComboBox2.TextAlignment = System.Drawing.ContentAlignment.MiddleLeft;
@@ -219,13 +278,168 @@
             this.uiComboBox1.Margin = new System.Windows.Forms.Padding(4, 5, 4, 5);
             this.uiComboBox1.MinimumSize = new System.Drawing.Size(63, 0);
             this.uiComboBox1.Name = "uiComboBox1";
-            this.uiComboBox1.Padding = new System.Windows.Forms.Padding(0, 0, 30, 0);
+            this.uiComboBox1.Padding = new System.Windows.Forms.Padding(0, 0, 30, 2);
             this.uiComboBox1.Size = new System.Drawing.Size(150, 29);
             this.uiComboBox1.TabIndex = 32;
             this.uiComboBox1.TextAlignment = System.Drawing.ContentAlignment.MiddleLeft;
             this.uiComboBox1.Watermark = "水印文字";
             this.uiComboBox1.DropDown += new System.EventHandler(this.uiComboBox1_DropDown);
             // 
+            // uiComboTreeView1
+            // 
+            this.uiComboTreeView1.DropDownStyle = Sunny.UI.UIDropDownStyle.DropDownList;
+            this.uiComboTreeView1.FillColor = System.Drawing.Color.White;
+            this.uiComboTreeView1.Font = new System.Drawing.Font("微软雅黑", 12F);
+            this.uiComboTreeView1.Location = new System.Drawing.Point(30, 215);
+            this.uiComboTreeView1.Margin = new System.Windows.Forms.Padding(4, 5, 4, 5);
+            this.uiComboTreeView1.MinimumSize = new System.Drawing.Size(63, 0);
+            this.uiComboTreeView1.Name = "uiComboTreeView1";
+            treeNode29.Name = "节点0";
+            treeNode29.Text = "节点0";
+            treeNode30.Name = "节点1";
+            treeNode30.Text = "节点1";
+            treeNode31.Name = "节点2";
+            treeNode31.Text = "节点2";
+            treeNode32.Name = "节点3";
+            treeNode32.Text = "节点3";
+            this.uiComboTreeView1.Nodes.AddRange(new System.Windows.Forms.TreeNode[] {
+            treeNode29,
+            treeNode30,
+            treeNode31,
+            treeNode32});
+            this.uiComboTreeView1.Padding = new System.Windows.Forms.Padding(0, 0, 30, 2);
+            this.uiComboTreeView1.Size = new System.Drawing.Size(150, 29);
+            this.uiComboTreeView1.TabIndex = 43;
+            this.uiComboTreeView1.TextAlignment = System.Drawing.ContentAlignment.MiddleLeft;
+            // 
+            // uiLine1
+            // 
+            this.uiLine1.Font = new System.Drawing.Font("微软雅黑", 12F);
+            this.uiLine1.Location = new System.Drawing.Point(30, 181);
+            this.uiLine1.MinimumSize = new System.Drawing.Size(16, 16);
+            this.uiLine1.Name = "uiLine1";
+            this.uiLine1.Size = new System.Drawing.Size(664, 20);
+            this.uiLine1.TabIndex = 45;
+            this.uiLine1.Text = "UIComboTreeView";
+            this.uiLine1.TextAlign = System.Drawing.ContentAlignment.MiddleLeft;
+            // 
+            // uiComboTreeView2
+            // 
+            this.uiComboTreeView2.CheckBoxes = true;
+            this.uiComboTreeView2.DropDownStyle = Sunny.UI.UIDropDownStyle.DropDownList;
+            this.uiComboTreeView2.FillColor = System.Drawing.Color.White;
+            this.uiComboTreeView2.Font = new System.Drawing.Font("微软雅黑", 12F);
+            this.uiComboTreeView2.Location = new System.Drawing.Point(188, 215);
+            this.uiComboTreeView2.Margin = new System.Windows.Forms.Padding(4, 5, 4, 5);
+            this.uiComboTreeView2.MinimumSize = new System.Drawing.Size(63, 0);
+            this.uiComboTreeView2.Name = "uiComboTreeView2";
+            treeNode25.Name = "节点0";
+            treeNode25.Text = "节点0";
+            treeNode26.Name = "节点1";
+            treeNode26.Text = "节点1";
+            treeNode27.Name = "节点2";
+            treeNode27.Text = "节点2";
+            treeNode28.Name = "节点3";
+            treeNode28.Text = "节点3";
+            this.uiComboTreeView2.Nodes.AddRange(new System.Windows.Forms.TreeNode[] {
+            treeNode25,
+            treeNode26,
+            treeNode27,
+            treeNode28});
+            this.uiComboTreeView2.Padding = new System.Windows.Forms.Padding(0, 0, 30, 2);
+            this.uiComboTreeView2.Size = new System.Drawing.Size(150, 29);
+            this.uiComboTreeView2.TabIndex = 46;
+            this.uiComboTreeView2.TextAlignment = System.Drawing.ContentAlignment.MiddleLeft;
+            // 
+            // uiComboTreeView3
+            // 
+            this.uiComboTreeView3.CheckBoxes = true;
+            this.uiComboTreeView3.DropDownStyle = Sunny.UI.UIDropDownStyle.DropDownList;
+            this.uiComboTreeView3.FillColor = System.Drawing.Color.White;
+            this.uiComboTreeView3.Font = new System.Drawing.Font("微软雅黑", 12F);
+            this.uiComboTreeView3.Location = new System.Drawing.Point(546, 215);
+            this.uiComboTreeView3.Margin = new System.Windows.Forms.Padding(4, 5, 4, 5);
+            this.uiComboTreeView3.MinimumSize = new System.Drawing.Size(63, 0);
+            this.uiComboTreeView3.Name = "uiComboTreeView3";
+            treeNode1.Name = "节点0";
+            treeNode1.Text = "节点0";
+            treeNode2.Name = "节点1";
+            treeNode2.Text = "节点1";
+            treeNode3.Name = "节点2";
+            treeNode3.Text = "节点2";
+            treeNode4.Name = "节点3";
+            treeNode4.Text = "节点3";
+            treeNode5.Name = "节点0";
+            treeNode5.Text = "节点0";
+            treeNode6.Name = "节点4";
+            treeNode6.Text = "节点4";
+            treeNode7.Name = "节点5";
+            treeNode7.Text = "节点5";
+            treeNode8.Name = "节点6";
+            treeNode8.Text = "节点6";
+            treeNode9.Name = "节点7";
+            treeNode9.Text = "节点7";
+            treeNode10.Name = "节点1";
+            treeNode10.Text = "节点1";
+            treeNode11.Name = "节点2";
+            treeNode11.Text = "节点2";
+            treeNode12.Name = "节点3";
+            treeNode12.Text = "节点3";
+            this.uiComboTreeView3.Nodes.AddRange(new System.Windows.Forms.TreeNode[] {
+            treeNode5,
+            treeNode10,
+            treeNode11,
+            treeNode12});
+            this.uiComboTreeView3.Padding = new System.Windows.Forms.Padding(0, 0, 30, 2);
+            this.uiComboTreeView3.ShowLines = true;
+            this.uiComboTreeView3.Size = new System.Drawing.Size(150, 29);
+            this.uiComboTreeView3.TabIndex = 48;
+            this.uiComboTreeView3.TextAlignment = System.Drawing.ContentAlignment.MiddleLeft;
+            // 
+            // uiComboTreeView4
+            // 
+            this.uiComboTreeView4.DropDownStyle = Sunny.UI.UIDropDownStyle.DropDownList;
+            this.uiComboTreeView4.FillColor = System.Drawing.Color.White;
+            this.uiComboTreeView4.Font = new System.Drawing.Font("微软雅黑", 12F);
+            this.uiComboTreeView4.Location = new System.Drawing.Point(388, 215);
+            this.uiComboTreeView4.Margin = new System.Windows.Forms.Padding(4, 5, 4, 5);
+            this.uiComboTreeView4.MinimumSize = new System.Drawing.Size(63, 0);
+            this.uiComboTreeView4.Name = "uiComboTreeView4";
+            treeNode13.Name = "节点0";
+            treeNode13.Text = "节点0";
+            treeNode14.Name = "节点1";
+            treeNode14.Text = "节点1";
+            treeNode15.Name = "节点2";
+            treeNode15.Text = "节点2";
+            treeNode16.Name = "节点3";
+            treeNode16.Text = "节点3";
+            treeNode17.Name = "节点0";
+            treeNode17.Text = "节点0";
+            treeNode18.Name = "节点4";
+            treeNode18.Text = "节点4";
+            treeNode19.Name = "节点5";
+            treeNode19.Text = "节点5";
+            treeNode20.Name = "节点6";
+            treeNode20.Text = "节点6";
+            treeNode21.Name = "节点7";
+            treeNode21.Text = "节点7";
+            treeNode22.Name = "节点1";
+            treeNode22.Text = "节点1";
+            treeNode23.Name = "节点2";
+            treeNode23.Text = "节点2";
+            treeNode24.Name = "节点3";
+            treeNode24.Text = "节点3";
+            this.uiComboTreeView4.Nodes.AddRange(new System.Windows.Forms.TreeNode[] {
+            treeNode17,
+            treeNode22,
+            treeNode23,
+            treeNode24});
+            this.uiComboTreeView4.Padding = new System.Windows.Forms.Padding(0, 0, 30, 2);
+            this.uiComboTreeView4.ShowLines = true;
+            this.uiComboTreeView4.Size = new System.Drawing.Size(150, 29);
+            this.uiComboTreeView4.TabIndex = 47;
+            this.uiComboTreeView4.TextAlignment = System.Drawing.ContentAlignment.MiddleLeft;
+            // 
             // FCombobox
             // 
             this.AutoScaleDimensions = new System.Drawing.SizeF(10F, 21F);
@@ -252,5 +466,10 @@
         private UIDatePicker uiDatePicker1;
         private UIComboBox uiComboBox2;
         private UIComboBox uiComboBox1;
+        private UIComboTreeView uiComboTreeView2;
+        private UILine uiLine1;
+        private UIComboTreeView uiComboTreeView1;
+        private UIComboTreeView uiComboTreeView3;
+        private UIComboTreeView uiComboTreeView4;
     }
 }

SunnyUI/Controls/DropItem/UIComboTreeViewItem.cs

@@ -0,0 +1,148 @@
+using System.ComponentModel;
+
+namespace Sunny.UI
+{
+    public class UIComboTreeViewItem : UIDropDownItem
+    {
+        private UIPanel panel;
+        private UISymbolButton btnCancel;
+        private UISymbolButton btnOK;
+        private UITreeView treeView;
+
+        public UITreeView TreeView => treeView;
+
+        [DefaultValue(false)]
+        public bool CheckBoxes
+        {
+            get => treeView.CheckBoxes;
+            set
+            {
+                treeView.CheckBoxes = value;
+                panel.Visible = CheckBoxes;
+            }
+        }
+
+        public UIComboTreeViewItem()
+        {
+            InitializeComponent();
+        }
+
+        private void InitializeComponent()
+        {
+            this.treeView = new Sunny.UI.UITreeView();
+            this.panel = new Sunny.UI.UIPanel();
+            this.btnCancel = new Sunny.UI.UISymbolButton();
+            this.btnOK = new Sunny.UI.UISymbolButton();
+            this.panel.SuspendLayout();
+            this.SuspendLayout();
+            // 
+            // treeView
+            // 
+            this.treeView.Dock = System.Windows.Forms.DockStyle.Fill;
+            this.treeView.FillColor = System.Drawing.Color.White;
+            this.treeView.Font = new System.Drawing.Font("微软雅黑", 12F);
+            this.treeView.Location = new System.Drawing.Point(0, 0);
+            this.treeView.Margin = new System.Windows.Forms.Padding(4, 5, 4, 5);
+            this.treeView.MinimumSize = new System.Drawing.Size(1, 1);
+            this.treeView.Name = "treeView";
+            this.treeView.RadiusSides = Sunny.UI.UICornerRadiusSides.None;
+            this.treeView.SelectedNode = null;
+            this.treeView.Size = new System.Drawing.Size(250, 176);
+            this.treeView.TabIndex = 0;
+            this.treeView.Text = "uiTreeView1";
+            this.treeView.NodeMouseClick += new System.Windows.Forms.TreeNodeMouseClickEventHandler(this.TreeView_NodeMouseClick);
+            // 
+            // panel
+            // 
+            this.panel.Controls.Add(this.btnCancel);
+            this.panel.Controls.Add(this.btnOK);
+            this.panel.Dock = System.Windows.Forms.DockStyle.Bottom;
+            this.panel.Font = new System.Drawing.Font("微软雅黑", 12F);
+            this.panel.Location = new System.Drawing.Point(0, 176);
+            this.panel.Margin = new System.Windows.Forms.Padding(4, 5, 4, 5);
+            this.panel.MinimumSize = new System.Drawing.Size(1, 1);
+            this.panel.Name = "panel";
+            this.panel.RadiusSides = Sunny.UI.UICornerRadiusSides.None;
+            this.panel.RectSides = ((System.Windows.Forms.ToolStripStatusLabelBorderSides)(((System.Windows.Forms.ToolStripStatusLabelBorderSides.Left | System.Windows.Forms.ToolStripStatusLabelBorderSides.Right) 
+            | System.Windows.Forms.ToolStripStatusLabelBorderSides.Bottom)));
+            this.panel.Size = new System.Drawing.Size(250, 44);
+            this.panel.TabIndex = 1;
+            this.panel.Text = null;
+            this.panel.Visible = false;
+            // 
+            // btnCancel
+            // 
+            this.btnCancel.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Right)));
+            this.btnCancel.Cursor = System.Windows.Forms.Cursors.Hand;
+            this.btnCancel.FillColor = System.Drawing.Color.FromArgb(((int)(((byte)(230)))), ((int)(((byte)(80)))), ((int)(((byte)(80)))));
+            this.btnCancel.FillHoverColor = System.Drawing.Color.FromArgb(((int)(((byte)(232)))), ((int)(((byte)(127)))), ((int)(((byte)(128)))));
+            this.btnCancel.FillPressColor = System.Drawing.Color.FromArgb(((int)(((byte)(202)))), ((int)(((byte)(87)))), ((int)(((byte)(89)))));
+            this.btnCancel.FillSelectedColor = System.Drawing.Color.FromArgb(((int)(((byte)(202)))), ((int)(((byte)(87)))), ((int)(((byte)(89)))));
+            this.btnCancel.Font = new System.Drawing.Font("微软雅黑", 10.5F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(134)));
+            this.btnCancel.Location = new System.Drawing.Point(159, 8);
+            this.btnCancel.MinimumSize = new System.Drawing.Size(1, 1);
+            this.btnCancel.Name = "btnCancel";
+            this.btnCancel.RectColor = System.Drawing.Color.FromArgb(((int)(((byte)(230)))), ((int)(((byte)(80)))), ((int)(((byte)(80)))));
+            this.btnCancel.RectHoverColor = System.Drawing.Color.FromArgb(((int)(((byte)(232)))), ((int)(((byte)(127)))), ((int)(((byte)(128)))));
+            this.btnCancel.RectPressColor = System.Drawing.Color.FromArgb(((int)(((byte)(202)))), ((int)(((byte)(87)))), ((int)(((byte)(89)))));
+            this.btnCancel.RectSelectedColor = System.Drawing.Color.FromArgb(((int)(((byte)(202)))), ((int)(((byte)(87)))), ((int)(((byte)(89)))));
+            this.btnCancel.Size = new System.Drawing.Size(80, 29);
+            this.btnCancel.Style = Sunny.UI.UIStyle.Red;
+            this.btnCancel.StyleCustomMode = true;
+            this.btnCancel.Symbol = 61453;
+            this.btnCancel.TabIndex = 1;
+            this.btnCancel.Text = "取消";
+            this.btnCancel.Click += new System.EventHandler(this.btnCancel_Click);
+            // 
+            // btnOK
+            // 
+            this.btnOK.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Right)));
+            this.btnOK.Cursor = System.Windows.Forms.Cursors.Hand;
+            this.btnOK.Font = new System.Drawing.Font("微软雅黑", 10.5F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(134)));
+            this.btnOK.Location = new System.Drawing.Point(70, 8);
+            this.btnOK.MinimumSize = new System.Drawing.Size(1, 1);
+            this.btnOK.Name = "btnOK";
+            this.btnOK.Size = new System.Drawing.Size(80, 29);
+            this.btnOK.TabIndex = 0;
+            this.btnOK.Text = "确定";
+            this.btnOK.Click += new System.EventHandler(this.btnOK_Click);
+            // 
+            // UIComboTreeViewItem
+            // 
+            this.Controls.Add(this.treeView);
+            this.Controls.Add(this.panel);
+            this.Name = "UIComboTreeViewItem";
+            this.Size = new System.Drawing.Size(250, 220);
+            this.panel.ResumeLayout(false);
+            this.ResumeLayout(false);
+
+        }
+
+        private void TreeView_NodeMouseClick(object sender, System.Windows.Forms.TreeNodeMouseClickEventArgs e)
+        {
+            if (!treeView.CheckBoxes && e.Node.Nodes.Count == 0)
+            {
+                DoValueChanged(this, e.Node);
+                CloseParent();
+            }
+        }
+
+        public override void SetStyle(UIBaseStyle style)
+        {
+            treeView.Style = style.Name;
+            panel.Style = style.Name;
+            btnOK.Style = style.Name;
+        }
+
+        private void btnCancel_Click(object sender, System.EventArgs e)
+        {
+            CloseParent();
+        }
+
+        private void btnOK_Click(object sender, System.EventArgs e)
+        {
+            DoValueChanged(this, treeView.Nodes);
+            CloseParent();
+        }
+    }
+}

SunnyUI/Controls/DropItem/UIComboTreeViewItem.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

SunnyUI/Controls/DropItem/UIDropControl.cs

@@ -65,6 +65,12 @@ namespace Sunny.UI
             TextAlignment = ContentAlignment.MiddleLeft;
             fillColor = Color.White;
             edit.BackColor = Color.White;
+            PaintOther += UIDropControl_PaintOther;
+        }
+
+        private void UIDropControl_PaintOther(object sender, PaintEventArgs e)
+        {
+            e.Graphics.DrawLine(RectColor, Width - 1, Radius, Width - 1, Height - Radius);
         }
 
         private void Edit_LostFocus(object sender, EventArgs e)
@@ -256,13 +262,15 @@ namespace Sunny.UI
             if (!edit.Visible)
             {
                 base.OnPaintFore(g, path);
+                g.FillRoundRectangle(GetFillColor(), new Rectangle(Width - 27, edit.Top, 26, edit.Height), Radius, false);
+                g.DrawRoundRectangle(rectColor, new Rectangle(0, 0, Width, Height), Radius, true);
             }
         }
 
         protected override void OnPaint(PaintEventArgs e)
         {
             base.OnPaint(e);
-            Padding = new Padding(0, 0, 30, 0);
+            Padding = new Padding(0, 0, 30, 2);
             e.Graphics.FillRoundRectangle(GetFillColor(), new Rectangle(Width - 27, edit.Top, 25, edit.Height), Radius);
             Color color = GetRectColor();
             SizeF sf = e.Graphics.GetFontImageSize(dropSymbol, 24);
@@ -307,6 +315,7 @@ namespace Sunny.UI
             set => edit.Text = value;
         }
 
+        [Browsable(false)]
         public bool IsEmpty => edit.Text == "";
 
         protected override void OnMouseDown(MouseEventArgs e)

SunnyUI/Controls/UIComboTreeView.cs

@@ -0,0 +1,103 @@
+using System.ComponentModel;
+using System.Drawing;
+using System.Windows.Forms;
+
+namespace Sunny.UI
+{
+    [ToolboxItem(true)]
+    public class UIComboTreeView : UIDropControl
+    {
+        public UIComboTreeView()
+        {
+            InitializeComponent();
+        }
+
+        private void InitializeComponent()
+        {
+            this.SuspendLayout();
+            // 
+            // UIComboTreeView
+            // 
+            this.DropDownStyle = Sunny.UI.UIDropDownStyle.DropDownList;
+            this.Name = "UIComboTreeView";
+            this.Padding = new System.Windows.Forms.Padding(0, 0, 30, 0);
+            this.ButtonClick += new System.EventHandler(this.UIComboTreeView_ButtonClick);
+            this.ResumeLayout(false);
+            this.PerformLayout();
+
+        }
+
+        [Browsable(false)]
+        public UITreeView TreeView => item.TreeView;
+
+        [DesignerSerializationVisibility(DesignerSerializationVisibility.Content)]
+        [Localizable(true)]
+        [MergableProperty(false)]
+        [Description("显示节点集合"), Category("SunnyUI")]
+        public TreeNodeCollection Nodes => item.TreeView.Nodes;
+
+        [DefaultValue(false), Description("是否显示单选框"), Category("SunnyUI")]
+        public bool CheckBoxes
+        {
+            get => item.CheckBoxes;
+            set => item.CheckBoxes = value;
+        }
+
+        [DefaultValue(false), Description("是否显示连线"), Category("SunnyUI")]
+        public bool ShowLines
+        {
+            get => item.TreeView.ShowLines;
+            set => item.TreeView.ShowLines = value;
+        }
+
+        private readonly UIComboTreeViewItem item = new UIComboTreeViewItem();
+
+        protected override void CreateInstance()
+        {
+            ItemForm = new UIDropDown(item);
+        }
+
+        [Browsable(false), DefaultValue(null)]
+        public TreeNode SelectedNode
+        {
+            get => item.TreeView.SelectedNode;
+            set
+            {
+                item.TreeView.SelectedNode = value;
+                Text = value.Text;
+            }
+        }
+
+        public delegate void OnNodeSelected(object sender, TreeNode node);
+        public delegate void OnNodesSelected(object sender, TreeNodeCollection node);
+
+        public event OnNodeSelected NodeSelected;
+        public event OnNodesSelected NodesSelected;
+
+        protected override void ItemForm_ValueChanged(object sender, object value)
+        {
+            if (!CheckBoxes)
+            {
+                TreeNode node = (TreeNode)value;
+                Text = node.Text;
+                NodeSelected?.Invoke(this, node);
+            }
+            else
+            {
+                NodesSelected?.Invoke(this, Nodes);
+            }
+
+            Invalidate();
+        }
+
+        private void UIComboTreeView_ButtonClick(object sender, System.EventArgs e)
+        {
+            ItemForm.Size = ItemSize;
+            item.TreeView.ExpandAll();
+            ItemForm.Show(this);
+        }
+
+        [DefaultValue(typeof(Size), "250, 220"), Description("下拉弹框界面大小"), Category("SunnyUI")]
+        public Size ItemSize { get; set; } = new Size(250, 220);
+    }
+}

SunnyUI/Controls/UIComboTreeView.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

SunnyUI/SunnyUI.csproj

@@ -93,6 +93,9 @@
     <Compile Include="Controls\DropItem\UIComboBoxItem.Designer.cs">
       <DependentUpon>UIComboBoxItem.cs</DependentUpon>
     </Compile>
+    <Compile Include="Controls\DropItem\UIComboTreeViewItem.cs">
+      <SubType>UserControl</SubType>
+    </Compile>
     <Compile Include="Controls\DropItem\UIDateItem.cs">
       <SubType>UserControl</SubType>
     </Compile>
@@ -117,6 +120,9 @@
     <Compile Include="Controls\UIBattery.cs">
       <SubType>Component</SubType>
     </Compile>
+    <Compile Include="Controls\UIComboTreeView.cs">
+      <SubType>UserControl</SubType>
+    </Compile>
     <Compile Include="Controls\UIDatetimePicker.cs">
       <SubType>UserControl</SubType>
     </Compile>
@@ -534,6 +540,12 @@
     <Compile Include="Win32\Win32.User.cs" />
   </ItemGroup>
   <ItemGroup>
+    <EmbeddedResource Include="Controls\DropItem\UIComboTreeViewItem.resx">
+      <DependentUpon>UIComboTreeViewItem.cs</DependentUpon>
+    </EmbeddedResource>
+    <EmbeddedResource Include="Controls\UIComboTreeView.resx">
+      <DependentUpon>UIComboTreeView.cs</DependentUpon>
+    </EmbeddedResource>
     <EmbeddedResource Include="Controls\UIDoubleUpDown.resx">
       <DependentUpon>UIDoubleUpDown.cs</DependentUpon>
     </EmbeddedResource>