[英]calling a event handler within another event handler?
Here is the short sample code: 以下是简短的示例代码:
private void txtbox1_DoubleClick(object sender, EventArgs e)
{
button1_Click(object sender, EventArgs e); //can I call button1 event handler?
}
private void button1_Click(object sender, EventArgs e)
{
MessageBox.Show(txtbox1.Text);
}
I wonder if it would be okay to code in the above way? 我想知道以上述方式编码是否可行?
You can do that - although the code you provide can't be compiled. 你可以这样做 - 虽然你提供的代码无法编译。 It should look like this:
它应该如下所示:
private void txtbox1_DoubleClick(object sender, EventArgs e)
{
button1_Click(sender, e);
}
private void button1_Click(object sender, EventArgs e)
{
MessageBox.Show(txtbox1.Text);
}
But for best practice and code readability, you're probably better off doing this, especially as you are not making use of sender
and e
: 但是为了获得最佳实践和代码可读性,你可能最好不要这样做,特别是因为你没有使用
sender
和e
:
private void txtbox1_DoubleClick(object sender, EventArgs e)
{
ShowMessageBox();
}
private void button1_Click(object sender, EventArgs e)
{
ShowMessageBox();
}
private void ShowMessageBox()
{
MessageBox.Show(txtbox1.Text);
}
Yes you can do that; 是的,你可以这么做; an event handler is just another method.
事件处理程序只是另一种方法。
However it might be worth creating a new method that shows the message box, and having both Click event handlers call that: 但是,可能值得创建一个显示消息框的新方法,并让两个Click事件处理程序调用:
private void txtbox1_DoubleClick(object sender, EventArgs e)
{
ShowTextboxMessage();
}
private void button1_Click(object sender, EventArgs e)
{
ShowTextboxMessage();
}
private void ShowTextboxMessage()
{
MessageBox.Show(txtbox1.Text);
}
事件处理程序只不过是一个方法,因此您可以像任何其他方法一样调用它。
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