asked on

Find out which control had focus

Hi all

I have a series of text boxes in VB .NET 2008 Express
Named txtCmd01 through to txtCmd20

I have one cmdBrowse button.

When a text box get's focus, the browse button moves to the same .Top property as the textbox - this looks a lot better than having 20 cmd buttons.
The cmd button will open a dialog box to select a file. The filename has to be returned the textbox that had the focus however.

Do you know how I can do this?

Thanks

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anyoneis

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SOLUTION

adriankohws

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adriankohws

Alternatively, you can do something like this.

Private Sub txtCmd02_GotFocus(ByVal sender As Object, ByVal e As System.EventArgs) Handles txtCmd01.GotFocus, txtCmd02.GotFocus
'If all are textboxes
'This example shows you only two textboxes
Dim TB As TextBox = sender
Select Case TB.Name
Case "txtCmd01"
'Do here
Case "txtCmd02"
'Do here
End Select
End Sub

Ryan_R

ASKER

Ok. Can you clarify what commands to use?

cmdBrowse.Tag = ???
 
 
???.Text = opnFile.Filename

Open in new window

anyoneis

The Tag is property is a reference to an object, so it can hold anything,

//TextBox GotFocus event
...
cmdBrowse.Tag = sender;
...
//

// In the Button Click handler, after return from dialog

Control theButton = sender as Button
TextBox theTextBoxPartner = theButton.Tag as TextBox;
theTextBoxPartner.Text = theFileNameText;

//

DAvid

tasky

You can declare a private reference to the textbox within the form

Dim txtSel As TextBox

Then when a textbox gets focus, set the reference of txtSel to the textbox. I.e.:

Private Sub txtCmd02_GotFocus(ByVal sender As Object, ByVal e As System.EventArgs) Handles txtCmd01.GotFocus, txtCmd02.GotFocus

txtSel = sender

End Sub

Then when you click the command button, just use txtSel and it will point to the last selected textbox.

Ryan_R

ASKER

I had started off using the global variable option, then had doubts, asked this question, then realised my initial method would work.

I'll split the points anyway.