【发布时间】:2011-01-11 16:25:45
【问题描述】:
如何将事件处理程序 TextBlock_MouseDown_Test1 或 TextBlock_MouseDown_Test2 传递给 SmartGrid,以便它创建的 TextBlock 在单击时执行此事件处理程序?
下面的代码得到错误:
最好的重载方法匹配 'TestDel234.SmartGrid.SmartGrid(TestDel234.Window1, System.Collections.Generic.List, System.EventHandler)' 有一些无效的 论据
using System;
using System.Collections.Generic;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
namespace TestDel234
{
public partial class Window1 : Window
{
public Window1()
{
InitializeComponent();
List<string> items = new List<string> { "one", "two", "three" };
SmartGrid sg = new SmartGrid(this, items, TextBlock_MouseDown_Test1);
}
private void TextBlock_MouseDown_Test1(object sender, MouseButtonEventArgs e)
{
MessageBox.Show("testing1");
}
private void TextBlock_MouseDown_Test2(object sender, MouseButtonEventArgs e)
{
MessageBox.Show("testing2");
}
}
public class SmartGrid
{
public SmartGrid(Window1 window, List<string> items, EventHandler eventHandler)
{
foreach (var item in items)
{
TextBlock tb = new TextBlock();
tb.Text = item;
tb.MouseDown += new MouseButtonEventHandler(eventHandler);
window.MainContent.Children.Add(tb);
}
}
}
}
【问题讨论】:
标签: c# parameters delegates methods