获取事件的控制名称 [英] Getting control name for an event

问题描述

在我的C＃Windows窗体窗体中，我有一些动态生成的按钮。我在点击事件上分配了以下方法。是否可以获取触发事件的按钮的名称？

  private void btnBrowsDoc_Click（object sender，EventArgs e ）
 {
 try 
 {
 if（openFileDialog1.ShowDialog（）。Equals（DialogResult.OK））
 {
 gbxDocument.Controls [txtDocument + count.Text = 
 openFileDialog1.FileName; 
} 
 else 
 {
 return; 
} 
} 
 catch（Exception ex）
 {
 //处理异常
} 
} 
  

解决方案

您可以使用发件人论据。那就是提出点击事件的控件（在这种情况下的按钮）：

  var button =（Button）sender; 
 button.Name ... 
  

注意：如果您已订阅其他控件（例如面板等）到相同的事件处理程序，您可以使用作为运算符检查发件人是否是按钮：

  var button = sender as Button; 
 if（button！= null）
 {
 button.Name ... 
 ... 
} 
  / pre> 
In my C# Windows Forms form I have some buttons which are dynamically generated. I assigned the following method on the click event. Is it possible to get the name of the button from which the event is triggered?
private void btnBrowsDoc_Click(object sender, EventArgs e)
{
    try
    {
        if (openFileDialog1.ShowDialog().Equals(DialogResult.OK))
        {
            gbxDocument.Controls["txtDocument" + count].Text =
                openFileDialog1.FileName;
        }
        else
        {
            return;
        }
    }
    catch (Exception ex)
    {
        //handle the exception
    }
}

解决方案
You can use the sender argument. That is the Control (the button in this case) that has raised the click event:
var button = (Button)sender;
button.Name ...
N.B.: In case you have subscribed other controls (e.g. panels, etc.) to the same event handler, you can check if the sender is a button using the asoperator:
var button = sender as Button;
if (button != null)
{
    button.Name ...
    ...
}


                        
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