* UITextBox：增加FocusedSelectAll属性，激活时全选。

SunnyUI/Controls/UIEdit.cs

@@ -478,10 +478,21 @@ namespace Sunny.UI
         protected override void OnGotFocus(EventArgs e)
         {
             base.OnGotFocus(e);
-            SelectionStart = Text.Length;
+
-            SelectionLength = 0;
+            if (FocusedSelectAll)
+            {
+                SelectAll();
+            }
+            else
+            {
+                SelectionStart = Text.Length;
+                SelectionLength = 0;
+            }
         }
 
+        [DefaultValue(false)]
+        public bool FocusedSelectAll { get; set; }
+
         protected override void OnLeave(EventArgs e)
         {
             base.OnLeave(e);

SunnyUI/Controls/UITextBox.cs

@@ -83,6 +83,14 @@ namespace Sunny.UI
             Leave?.Invoke(sender, e);
         }
 
+        [DefaultValue(false)]
+        [Description("激活时选中全部文字"), Category("SunnyUI")]
+        public bool FocusedSelectAll
+        {
+            get => edit.FocusedSelectAll;
+            set => edit.FocusedSelectAll = value;
+        }
+
         private void UITextBox_TextAlignmentChange(object sender, ContentAlignment alignment)
         {
             if (edit == null) return;
@@ -129,6 +137,10 @@ namespace Sunny.UI
         private void Edit_MouseEnter(object sender, EventArgs e)
         {
             Cursor = editCursor;
+            if (FocusedSelectAll)
+            {
+                SelectAll();
+            }
         }
 
         private void OnMouseWheel(object sender, MouseEventArgs e)
@@ -191,6 +203,7 @@ namespace Sunny.UI
 
         public void Select(int start, int length)
         {
+            edit.Focus();
             edit.Select(start, length);
         }
 
@@ -231,6 +244,7 @@ namespace Sunny.UI
 
         public void SelectAll()
         {
+            edit.Focus();
             edit.SelectAll();
         }