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Control con = this.FindControl("Button1");
Button btn = (con as Button);
EventInfo info = btn.GetType().GetEvent("Click");
PropertyInfo propertyInfo = (typeof(Button)).GetProperty("Events", BindingFlags.Instance | BindingFlags.NonPublic);
EventHandlerList eventHandlerList = (EventHandlerList)propertyInfo.GetValue(btn, null);
FieldInfo fieldInfo = (typeof(Control)).GetField("EventClick", BindingFlags.Static | BindingFlags.NonPublic);
//fieldInfo为空 为什么获取不到?
Delegate d = eventHandlerList[fieldInfo.GetValue(null)];
if (d != null)
{
foreach (Delegate temp in d.GetInvocationList())
{
btn.Click -= temp as EventHandler;
}
}
btn.Click += new EventHandler(btntest_Click); // 跳转执行权限检查方法
base.OnPreLoad(e);