Problems with Control.Focus Method

[AndyMC]

Hello there,

 

I have trouble with the Control.Focus method.

 

When I try to set the input focus on a textBox by using

myTextbox.Focus()

I get a "false" back and no focus is being set.

 

The help explains:

"A control can be selected and receive input focus if all of the following are true: its ControlStyles.Selectable style bit is set to true, it is contained in another control, and all its parent controls are both visible and enabled."

 

So how can I ensure all the above mentioned conditions in a smart way?

 

Does anybody know?

 

Thanks,

Andy

[Robby]

It's parent can be the Form, Panel, GroupBox etc.

[AndyMC]

Hi Robby, thanks for your answer.

 

As the parent of the textbox is a user control. I tried the following code in the constructor of the user control (after initialize components):

 

       Me.Visible = True
       Me.Enabled = True
       Me.txtName.Visible = True
       Me.txtName.Enabled = True
       Me.txtName.Focus()

 

But that didn't work too.

 

As my textbox "txtName" is not a textbox but an extended control derived from Forms.Textbox I could imagine an overloaded "Focus"-method in my extendedTextbox where automatically everything will be done what has to be done (enable and make visible all parent controls). But how would I achieve that "automatically"?

 

Any ideas?

[Cywizz]

Put the code in the parent's load event, not the constructor. The constructor gets fired before the parent and it's controls are added.

Cheers

[AndyMC]

Unfortunately it makes no difference if constructor or load. It still doesn't work.

 

Has nobody the same problem???

[divil]

You can't focus a control unless it's visible. Try, in the form's Load event, first showing the form (Me.Show()) and then setting the focus after that.