改变 PropertyGrid 控件的编辑风格（1）——加入日期控件

张昱e-zhangyu@vip.sina.com

 效果：

适用场合：

编辑日期类型数据

步骤一：定义从UITypeEditor 派生的类，示例如下：

using System;

using System.Windows.Forms;

using System.Drawing.Design;

using System.Windows.Forms.Design;

namespace blog.csdn.net.zhangyuk

{

     /// <summary>

     /// 在 PropertyGrid 上显示日期控件

     ///

     /// </summary>

     public class PropertyGridDateItem : UITypeEditor

     {

         MonthCalendar dateControl = new MonthCalendar();

         public PropertyGridDateItem()

         {

              dateControl.MaxSelectionCount = 1;

         }

         public override UITypeEditorEditStyle GetEditStyle(

System.ComponentModel.ITypeDescriptorContext context)

         {

              return UITypeEditorEditStyle.DropDown;

         }

         public override object EditValue(

System.ComponentModel.ITypeDescriptorContext context,

System.IServiceProvider provider,

object value)

         {      

              try

              {

                   IWindowsFormsEditorService edSvc = (IWindowsFormsEditorService)

provider.GetService(typeof(IWindowsFormsEditorService));

                   if( edSvc != null )

                   {

           &