如何在表单加载时将光标聚焦在文本框中 [英] How to focus cursor in a textbox when form load

问题描述

我希望当我的窗体在名为ItemCodetextBox的文本框上默认加载光标fpcus时。

我使用了Tab控件，文本框位于选项卡控件上。

我已在表单加载事件中找到以下代码。但它不起作用。

ItemCodetextBox.Focus（）;

请帮助我。

I want when my windows form load cursor by default fpcus on a textbox named "ItemCodetextBox".
I have used tab Control and the textbox is on the tab control.
I have witten the following code on the form load event. But it does not work.
ItemCodetextBox.Focus();
Please help me.

推荐答案

你不能直接将控件集中在表单加载上（顺便说一下，这是一个假事件，你不必使用它;它只是为了提供与真实事件相同的添加处理程序的机制而添加它，使用它相当于在表单构造函数的末尾添加代码。）这是因为只能关注一个可见的控件。



你可以在表单显示时关注它第一次。如果在load事件处理程序或构造函数中编写，它看起来像

You cannot directly focus a control on form load (by the way, this is a fake event, you don't have to use it; it is added only to provide the same mechanism of adding handlers as for "real" events", using it is equivalent to adding code at the end of a form constructor). This is because only a visible control can be focused.

You can focus it when a form is shown for the first time. If written in the load event handler or a constructor, it would look like

this.FormShown += (sender, eventArgs) => { myControl.Focus(); }

或者，您可以设置逻辑焦点，这可以提前完成，与真实焦点相反：

Alternatively, you can set "logical focus", which can be done in advance, in contrast to "real" focus:

this.ActiveControl = myControl;

-SA

询问Google [ ^ ]

试试这个

Try this

private void Form1_Load(object sender, EventArgs e)
      {
          ItemCodetextBox.TabIndex = 0;
          ItemCodetextBox.Focus();
      }

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