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  • C# 带滚动栏的Label控件

    C# 带滚动栏的Label控件,用鼠标选的时候还是有点闪烁:

    namespace 带滚动栏的Label控件
    {
        public class TextBoxLabel : System.Windows.Forms.TextBox
        {
            [DllImport("user32", EntryPoint = "HideCaret")]
            private static extern bool HideCaret(IntPtr hWnd);
    
            [DllImport("user32", EntryPoint = "ShowCaret")]
            private static extern bool ShowCaret(IntPtr hWnd);
    
            public TextBoxLabel():base(){
    
                this.TabStop = false;
                this.SetStyle(ControlStyles.Selectable, false);
                this.Cursor = Cursors.Default;
                this.ReadOnly = true;
                this.ShortcutsEnabled = false;
                this.HideSelection = true;
                this.GotFocus += new EventHandler(TextBoxLabel_GotFocus);
                this.MouseMove += new MouseEventHandler(TextBoxLabel_MouseMove);
            }
    
            private void TextBoxLabel_GotFocus(Object sender, System.EventArgs e){
                if (ShowCaret(((TextBox)sender).Handle)){
                    HideCaret(((TextBox)sender).Handle);
                }
            }
    
            private void TextBoxLabel_MouseMove(Object sender, MouseEventArgs e){
                if (((TextBox)sender).SelectedText.Length > 0){
                    ((TextBox)sender).SelectionLength = 0;
                }
            }
        }
    }

    效果:



    实现思路及用途參考:http://bbs.csdn.net/topics/390632325?page=1#post-398542672


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  • 原文地址:https://www.cnblogs.com/mfrbuaa/p/4314092.html
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