摘要：using System.Windows.Forms; /// <summary> /// 解决加载闪烁，背景透明等问题 /// </summary> protected override CreateParams CreateParams { get { var parms = base.Crea 阅读全文

摘要：Point _downPoint; private void button1_MouseDown(object sender, MouseEventArgs e) { _downPoint = new Point(e.X, e.Y); } private void button1_MouseMove 阅读全文

摘要：设置 DropDownStyle 为 DropDownList 将 DrawMode 改为 OwnerDrawFixed 添加 DrawItem 事件 样式就变为下面这样，但是只能在列表中选择，而不能手动输入 public class ComBox : ComboBox { public ComBo 阅读全文