在另一个事件处理程序中调用一个事件处理程序？

发布于 2024-12-01 16:50:07 字数 312 浏览 1 评论 0原文

这是简短的示例代码：

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);
}

我想知道用上面的方式编码是否可以？

原文

Here is the short sample code:

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?

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谜泪 2024-12-08 16:50:07

您可以这样做 - 尽管您提供的代码无法编译。它应该看起来像这样：

private void txtbox1_DoubleClick(object sender, EventArgs e)
{
    button1_Click(sender, e);
}

private void button1_Click(object sender, EventArgs e)
{
    MessageBox.Show(txtbox1.Text);
}

但是为了最佳实践和代码可读性，您最好这样做，特别是当您不使用 sender 和 e 时：

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);
}

You can do that - although the code you provide can't be compiled. It should look like this:

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:

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);
}

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只涨不跌 2024-12-08 16:50:07

是的，你可以这样做；事件处理程序只是另一种方法。

但是，可能值得创建一个显示消息框的新方法，并让两个 Click 事件处理程序都调用该方法：

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);
}

Yes you can do that; an event handler is just another method.

However it might be worth creating a new method that shows the message box, and having both Click event handlers call that:

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);
}

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