diff --git a/Bin/net40/SunnyUI.Demo.exe b/Bin/net40/SunnyUI.Demo.exe
index 4f76f4f0..53cec2ee 100644
Binary files a/Bin/net40/SunnyUI.Demo.exe and b/Bin/net40/SunnyUI.Demo.exe differ
diff --git a/Bin/net40/SunnyUI.dll b/Bin/net40/SunnyUI.dll
index 8b20c710..b62a2328 100644
Binary files a/Bin/net40/SunnyUI.dll and b/Bin/net40/SunnyUI.dll differ
diff --git a/Bin/net45/SunnyUI.dll b/Bin/net45/SunnyUI.dll
index 7d92a66d..8d29809d 100644
Binary files a/Bin/net45/SunnyUI.dll and b/Bin/net45/SunnyUI.dll differ
diff --git a/Bin/net5.0-windows/SunnyUI.dll b/Bin/net5.0-windows/SunnyUI.dll
index 6f5f48b0..852e25d0 100644
Binary files a/Bin/net5.0-windows/SunnyUI.dll and b/Bin/net5.0-windows/SunnyUI.dll differ
diff --git a/Bin/net5.0-windows/ref/SunnyUI.dll b/Bin/net5.0-windows/ref/SunnyUI.dll
index 37d8c117..fc6c0fb4 100644
Binary files a/Bin/net5.0-windows/ref/SunnyUI.dll and b/Bin/net5.0-windows/ref/SunnyUI.dll differ
diff --git a/Bin/netcoreapp3.1/SunnyUI.dll b/Bin/netcoreapp3.1/SunnyUI.dll
index 58c379cb..43a09414 100644
Binary files a/Bin/netcoreapp3.1/SunnyUI.dll and b/Bin/netcoreapp3.1/SunnyUI.dll differ
diff --git a/SunnyUI.Demo/Controls/FFlowLayoutPanel.cs b/SunnyUI.Demo/Controls/FFlowLayoutPanel.cs
index b0ae7614..e5122212 100644
--- a/SunnyUI.Demo/Controls/FFlowLayoutPanel.cs
+++ b/SunnyUI.Demo/Controls/FFlowLayoutPanel.cs
@@ -23,8 +23,11 @@
         UIButton btn;
         private void uiButton1_Click(object sender, System.EventArgs e)
         {
-            btn = new UIButton();
-            btn.Text = "Button" + index++.ToString("D2");
+            btn = new UIButton
+            {
+                Text = "Button" + index++.ToString("D2")
+            };
+
             //可以用原生方法Controls.Add
             uiFlowLayoutPanel1.Controls.Add(btn);
             //或者封装的方法Add
diff --git a/SunnyUI.Demo/Forms/FDialogs.cs b/SunnyUI.Demo/Forms/FDialogs.cs
index a09a46ae..05783d1c 100644
--- a/SunnyUI.Demo/Forms/FDialogs.cs
+++ b/SunnyUI.Demo/Forms/FDialogs.cs
@@ -166,11 +166,14 @@ namespace Sunny.UI.Demo
 
         private void uiSymbolButton3_Click(object sender, EventArgs e)
         {
-            UILoginForm frm = new UILoginForm();
-            frm.ShowInTaskbar = true;
-            frm.Text = "Login";
-            frm.Title = "SunnyUI.Net Login Form";
-            frm.SubText = Version;
+            UILoginForm frm = new UILoginForm
+            {
+                ShowInTaskbar = true,
+                Text = "Login",
+                Title = "SunnyUI.Net Login Form",
+                SubText = Version
+            };
+
             frm.OnLogin += Frm_OnLogin;
             frm.LoginImage = UILoginForm.UILoginImage.Login2;
             frm.ShowDialog();
diff --git a/SunnyUI/Controls/UIImageListBox.cs b/SunnyUI/Controls/UIImageListBox.cs
index 0fcf4748..85af59b3 100644
--- a/SunnyUI/Controls/UIImageListBox.cs
+++ b/SunnyUI/Controls/UIImageListBox.cs
@@ -67,6 +67,16 @@ namespace Sunny.UI
             listbox.MouseMove += Listbox_MouseMove;
         }
 
+        public int IndexFromPoint(Point p)
+        {
+            return listbox.IndexFromPoint(p);
+        }
+
+        public int IndexFromPoint(int x, int y)
+        {
+            return listbox.IndexFromPoint(x, y);
+        }
+
         protected override void AfterSetFillColor(Color color)
         {
             base.AfterSetFillColor(color);
diff --git a/SunnyUI/Controls/UIListBox.cs b/SunnyUI/Controls/UIListBox.cs
index 2b542784..6c04eddf 100644
--- a/SunnyUI/Controls/UIListBox.cs
+++ b/SunnyUI/Controls/UIListBox.cs
@@ -77,6 +77,16 @@ namespace Sunny.UI
         [Browsable(false)]
         public ListBox ListBox => listbox;
 
+        public int IndexFromPoint(Point p)
+        {
+            return listbox.IndexFromPoint(p);
+        }
+
+        public int IndexFromPoint(int x, int y)
+        {
+            return listbox.IndexFromPoint(x, y);
+        }
+
         [DefaultValue(StringAlignment.Near)]
         [Description("列表项高度"), Category("SunnyUI")]
         public new StringAlignment TextAlignment
@@ -100,7 +110,6 @@ namespace Sunny.UI
             get => listbox.SelectedIndices;
         }
 
-
         protected override void OnContextMenuStripChanged(EventArgs e)
         {
             base.OnContextMenuStripChanged(e);