C# 怎么得到Click事件的委托
如题
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通过消息
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不理解问题
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是给click加委托?得到是啥意思
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我记得应该可以写一个监听去控制事件的委托。
太久没接触.net了 我目前也忘的差不多了。
同学习。
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Control.Click += Yourdelegate() ;
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不明白楼主提的问题什么意思。
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如果要调用的话,最简单就是btnView_Click(Null,Null);
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using System;using System.Collections.Generic;using System.Reflection;using System.ComponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;using System.Windows.Forms;namespace WindowsFormsApplication2{ public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void button1_Click(object sender, EventArgs e) { MessageBox.Show("button1"); } private void button2_Click(object sender, EventArgs e) { Delegate[] _List = GetObjectEventList(button1, "EventClick", typeof(Control)); foreach (var item in _List) { item.DynamicInvoke(sender, e); } } public static Delegate[] GetObjectEventList(object p_Object, string p_EventName, Type p_EventType) { PropertyInfo _PropertyInfo = p_Object.GetType().GetProperty("Events", BindingFlags.Instance | BindingFlags.NonPublic); if (_PropertyInfo != null) { object _EventList = _PropertyInfo.GetValue(p_Object, null); if (_EventList != null && _EventList is EventHandlerList) { EventHandlerList _List = (EventHandlerList)_EventList; FieldInfo _FieldInfo = p_EventType.GetField(p_EventName, BindingFlags.Static | BindingFlags.NonPublic | BindingFlags.IgnoreCase); if (_FieldInfo == null) return null; Delegate _ObjectDelegate = _List[_FieldInfo.GetValue(p_Object)]; if (_ObjectDelegate == null) return null; return _ObjectDelegate.GetInvocationList(); } } return null; } }}
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是想得到 Click 这个event吧,event 就是委托,不过包了一层,你得到了也干不了啥,出了加减委托
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using System;using System.Collections.Generic;using System.Reflection;using System.ComponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;using System.Windows.Forms;namespace WindowsFormsApplication2{ public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void button1_Click(object sender, EventArgs e) { MessageBox.Show("button1"); } private void button2_Click(object sender, EventArgs e) { Delegate[] _List = GetObjectEventList(button1, "EventClick", typeof(Control)); foreach (var item in _List) { MessageBox.Show(item.Method.ToString()); } } public static Delegate[] GetObjectEventList(object p_Object, string p_EventName, Type p_EventType) { PropertyInfo _PropertyInfo = p_Object.GetType().GetProperty("Events", BindingFlags.Instance | BindingFlags.NonPublic); if (_PropertyInfo != null) { object _EventList = _PropertyInfo.GetValue(p_Object, null); if (_EventList != null && _EventList is EventHandlerList) { EventHandlerList _List = (EventHandlerList)_EventList; FieldInfo _FieldInfo = p_EventType.GetField(p_EventName, BindingFlags.Static | BindingFlags.NonPublic | BindingFlags.IgnoreCase); if (_FieldInfo == null) return null; Delegate _ObjectDelegate = _List[_FieldInfo.GetValue(p_Object)]; if (_ObjectDelegate == null) return null; return _ObjectDelegate.GetInvocationList(); } } return null; } }}
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你只能注册(+=)或者解除注册(-=),得到二字从何说起?
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private void button2_Click(object sender, EventArgs e) { Delegate[] _List = GetObjectEventList(button1, "EventClick", typeof(Control)); foreach (var item in _List) { MethodInfo mi = item.Method; mi.Invoke(this, new object[] { sender, e }); } }
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还是各种方法
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什么控件?
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很奇怪。。。我的代码在我这里运行正常啊。
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利用反射技术可以获取,偶对这块也不是很熟哈
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