How to change focus from treeview node to control using c#?

Question

A form will opens when i click on treenode. I need to set focus from treenode to the textbox control in newly opened form.

Answer 1

Use the

form.Activate()

method on the new form to bring it to the front, then use the

textbox.Focus() 

method on your textbox.

Answer 2

You could try to set the ActiveControl property on the desired TextBox upon opening the newly created form: Active Control MSDN docs

Basically, you do sth like this in your load form method:

private void yourFormLoad(object sender, EventArgs e)
{
    ActiveControl = yourTextBox;
}

Of course, you have to firstly focus the new form by calling the form Activate method:

yourForm.Activate()