只需将 System.ComponentModel.DesignerAttribute 属性应用到该控件即可:
[Designer("System.Windows.Forms.Design.ParentControlDesigner, System.Design", typeof(IDesigner))]
public partial class UserControl1 : UserControl
{
public UserControl1()
{
InitializeComponent();
}
}
//因为要实现IDesigner接口引用using System.ComponentModel.Design;