方法一:
去除事件
public static class EventExtension
{
public static void RemoveEvents(this Control target,string Event)
{
FieldInfo f1 = typeof(Control).GetField(Event,BindingFlags.Static | BindingFlags.NonPublic);
object obj = f1.GetValue(target.CastTo());
PropertyInfo pi =target.CastTo().GetType().GetProperty("Events",
BindingFlags.NonPublic | BindingFlags.Instance);
EventHandlerList list = (EventHandlerList)pi.GetValue(target.CastTo(), null);
list.RemoveHandler(obj, list[obj]);
}
}
使用方法：
Button button=new Button();
button.RemoveEvents
URL：http://stackoverflow.com/questions/91778/how-to-remove-all-event-handlers-from-a-control
来自博客:
http://www.cnblogs.com/z2002m/archive/2011/04/26/2029457.html
方法二
public static class RemoveCtrlEvent
{
public static void RemoveEvents(this Control target, string eventName)
{
if (target == null) return;
if (string.IsNullOrEmpty(eventName)) return;
BindingFlags bPropertyFlags = BindingFlags.Instance | BindingFlags.Public | BindingFlags.Static | BindingFlags.NonPublic;//筛选
BindingFlags fieldFlags = BindingFlags.Static | BindingFlags.NonPublic;
Type ctrlType = typeof(System.Windows.Forms.Control);
PropertyInfo pInfo = ctrlType.GetProperty("Events", bPropertyFlags);
EventHandlerList evtHLst = (EventHandlerList)pInfo.GetValue(target, null);//事件列表
FieldInfo fieldInfo = (typeof(Control).GetField("Event" + eventName, fieldFlags));
Delegate d = evtHLst[fieldInfo.GetValue(target)];
if (d == null) return;
EventInfo eventInfo = ctrlType.GetEvent(eventName);
foreach (Delegate dx in d.GetInvocationList())
{
//移除已订阅的eventName类型事件
eventInfo.RemoveEventHandler(target, dx);
}
}
}
来自博客:
http://blog.sina.com.cn/s/blog_6fd674050100oemh.html
来自博客:
http://www.cnblogs.com/z2002m/archive/2011/04/26/2029457.html
方法二
public static class RemoveCtrlEvent
{
public static void RemoveEvents(this Control target, string eventName)
{
if (target == null) return;
if (string.IsNullOrEmpty(eventName)) return;
BindingFlags bPropertyFlags = BindingFlags.Instance | BindingFlags.Public | BindingFlags.Static | BindingFlags.NonPublic;//筛选
BindingFlags fieldFlags = BindingFlags.Static | BindingFlags.NonPublic;
Type ctrlType = typeof(System.Windows.Forms.Control);
PropertyInfo pInfo = ctrlType.GetProperty("Events", bPropertyFlags);
EventHandlerList evtHLst = (EventHandlerList)pInfo.GetValue(target, null);//事件列表
FieldInfo fieldInfo = (typeof(Control).GetField("Event" + eventName, fieldFlags));
Delegate d = evtHLst[fieldInfo.GetValue(target)];
if (d == null) return;
EventInfo eventInfo = ctrlType.GetEvent(eventName);
foreach (Delegate dx in d.GetInvocationList())
{
//移除已订阅的eventName类型事件
eventInfo.RemoveEventHandler(target, dx);
}
}
}
来自博客:
http://blog.sina.com.cn/s/blog_6fd674050100oemh.html
