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C#教程之WinForm实现移除控件某个事件的方法
- 2018-06-07 16:22 来源:未知
体育彩票排列三 www.o1y4.com.cn 本文实例讲述了WinForm实现移除控件某个事件的方法,供大家参考借鉴一下。具体功能代码如下:
主要功能部分代码如下:
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/// <summary> /// 移除控件某个事件 /// </summary> /// <param name="control">控件</param> /// <param name="eventName">需要移除的控件名称eg:EventClick</param> public static void RemoveControlEvent( this Control control, string eventName) { FieldInfo _fl = typeof (Control).GetField(eventName, BindingFlags.Static | BindingFlags.NonPublic); if (_fl != null ) { object _obj = _fl.GetValue(control); PropertyInfo _pi = control.GetType().GetProperty( "Events" , BindingFlags.NonPublic | BindingFlags.Instance); EventHandlerList _eventlist = (EventHandlerList)_pi.GetValue(control, null ); if (_obj != null && _eventlist != null ) _eventlist.RemoveHandler(_obj, _eventlist[_obj]); } } |
使用代码:
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private void WinRemoveControlEventTest_Load( object sender, EventArgs e) { button1.RemoveControlEvent( "EventClick" ); } private void button1_Click( object sender, EventArgs e) { MessageBox.Show( "button1_Click" ); } |