Controls.add-> Controls.clear-> Controls.add自动将焦点设置为最后添加的控件吗？

Question

I have code like below.

When the form is loaded, the textBox2 appears automatically selected and in focus.

The calling sequence has to be like below. It would not be reproduced otherwise.

Why's that?

this.Controls.Add(this.textBox1);
this.Controls.Clear();
this.Controls.Add(this.textBox2);

The code is just an example of the real life scenario where controls are dynamically loaded.

Thanks,

Answer 1

If you only have the textBox2 control on your form, there's only one place the focus can be. If you want to set the focus order of your controls, use the TabIndex property.