private void btnAdd_Click(object sender, EventArgs e)
{
MessageBox.Show("新增");
}
private void btnModify_Click(object sender, EventArgs e)
{
MessageBox.Show("修改");
}
private void btnDelete_Click(object sender, EventArgs e)
{
MessageBox.Show("删除");
}
......
以上为各个按钮的事件,有很多个.
以下是想动态对应绑定以上事件,
问题来了
var Items = new List<MyButton>()
{
new MyButton("新增","tbtnAdd","btnAdd_Click"),
new MyButton("修改","tbtnModify","btnModify_Click"),
new MyButton("删除","tbtnDelete","btnDelete_Click")
};
foreach (var item in items)
{
var btn = new Button();
btn.Text = item.Text;
btn.Name = item.Name;
//btn.Click += new EventHandler(item.ClickEvent); //以上因为这句里的item.ClickEvent是字符串,知道事件的名称,怎样通过事件名称绑定事件
}
以下为自定义按钮对象:
public class MyButton
{
public MyButton(string text, string name, string clickEvent)
{
Text = text;
Name = name;
ClickEvent = clickEvent;
}
public string Text { get; set; }
public string Name { get; set; }
public string ClickEvent { get; set; }
}
------解决思路----------------------
只能返射来做了。
------解决思路----------------------
var ei = typeof(Button).GetEvent("Click");
var d = Delegate.CreateDelegate(typeof(EventHandler), this, item.ClickEvent);
ei.AddEventHandler(btn, d);
------解决思路----------------------
为什么不直接用EventHandler delegate呢？看不到用字符串的优点（字符串的好处是可以存数据库，但由于你用是函数名字，函数名字存储在外面，有泄露内部实现细节的嫌疑）。
public class MyButton
{
public MyButton(string text, string name, EventHandler clickEvent)
{
Text = text;
Name = name;
ClickEvent = clickEvent;
}
public string Text { get; set; }
public string Name { get; set; }
public EventHandler ClickEvent { get; set; }
}
var Items = new List<MyButton>()
{
new MyButton("新增","tbtnAdd",btnAdd_Click),
new MyButton("修改","tbtnModify",btnModify_Click),
new MyButton("删除","tbtnDelete",btnDelete_Click)
};
foreach (var item in items)
{
var btn = new Button();
btn.Text = item.Text;
btn.Name = item.Name;
btn.Click += itemm.ClickEvent; //
}
------解决思路----------------------
都绑定同一个函数不好吗?
然后在函数里判断sender(触发事件的对象),强制转换回BUTTON,再根据不同的TEXT,show不同的内容