控制具有相同事件类型的多个文本框 [英] Controlling Multiple Text Boxes with same event Type

问题描述

我有一个C＃WPF窗口，其中有20个文本框。他们没有做任何特别的事情，而我所需要的就是当我们去选择文本时。

我知道这是相当的每个设置20个事件

  private void customerTextBox_GotFocus（object sender，RoutedEventArgs e）
 {
 customerTextBox.SelectAll（）; 
} 
  

但我想知道如果这些更平滑的东西像

  private void（genericTextBox）_GotFocus（object sender，RoutedEventArgs e）
 {
（genericTextBox）.SelectAll（）; 
} 
  

我可以在这里使用一次，每个文本框了解用户该事件

解决方案

您可以使用sender参数为多个TextBox写入一个处理程序。

示例： / p>

  private void textBox_GotFocus（object sender，RoutedEventArgs e）
 {
 TextBox textBox = sender as TextBox; 
 if（sender == null）
 {
 return; 
} 
 textBox.SelectAll（）; 
} 
  

I have a C# WPF Window in which I have 20 textboxes. They don't do anything special, and all i want is when I went them for the text to be selected.

I know it's fairly each to set up 20 events like

private void customerTextBox_GotFocus(object sender, RoutedEventArgs e)
{
    customerTextBox.SelectAll();
}

but i'm wondering if theres something smoother like

private void (genericTextBox)_GotFocus(object sender, RoutedEventArgs e)
{
    (genericTextBox).SelectAll();
}

where I can just use this once and each textbox understands to user that event

解决方案

You can use the "sender" parameter to write one handler for multiple TextBoxes.
Example:

private void textBox_GotFocus(object sender, RoutedEventArgs e)
{
    TextBox textBox = sender as TextBox;
    if (sender == null)
    {
       return;
    }
    textBox.SelectAll();
 }

这篇关于控制具有相同事件类型的多个文本框的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！