Question

I need to focus on a textbox after an item has been selected from a dropdownlist.

I’ve tried control.focus() and setfocus().

The last thing I’ve tried was Set_Focus(dtbEffectiveDate.ClientID) inside the SelectedIndexChanged method with the folowing method.

Protected Sub Set_Focus(ByVal ControlName As String)
    Dim strScript As String

    strScript = "<script language=javascript> window.setTimeout(""" + ControlName + ".focus();"",0); </script>"
    RegisterStartupScript("focus", strScript)
End Sub

I’m out of answers so any help would be awesome.

Answer 1

You should select the control in javascript with document.getElementById(id):

 document.getElementById('"+ControlName+"').focus();

something like:

Protected Sub Set_Focus(ByVal ControlName As String)
    Dim strScript As String

    strScript = "<script language=javascript> window.setTimeout(document.getElementById('" + ControlName + "').focus();"",0); </script>"
    RegisterStartupScript("focus", strScript)
End Sub

Edit: I’m not entirely sure of the correct VB-syntax for escaping the quotes around ControlName.