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Tip of the Day
Language: VB7
Expertise: Intermediate
Oct 6, 2003

WEBINAR:

On-Demand

Application Security Testing: An Integral Part of DevOps


GetControlsByTag - Find all the controls with the specified Tag value

' Find all the controls with the specified Tag value
' Example:
'    Dim ctrls() As Control = GetControlsByTag("OK", Me)
'    Dim ctrl As Control
'    For Each ctrl In ctrls
'        Debug.WriteLine(ctrl.Name)
'    Next

Function GetControlsByTag(ByVal tagToSearch As String, _
    ByVal parentControl As Control) As Control()
    Dim controlList As New System.Collections.ArrayList

    ' add the parent control to the list, if its Tag matches the input string
    If Not parentControl.Tag Is Nothing Then
        If parentControl.Tag.ToString() = tagToSearch Then
            controlList.Add(parentControl)
        End If
    End If

    ' recursively call this routine for all the child controls
    If parentControl.Controls.Count > 0 Then
        Dim child As Control
        For Each child In parentControl.Controls
            ' add the results of the recursive GetControlsByTag call to the 
            ' current ArrayList
            controlList.AddRange(GetControlsByTag(tagToSearch, child))
        Next
    End If

    ' convert the ArrayList to an array of Controls, and return it
    Return controlList.ToArray(GetType(Control))
End Function
Alberto Falossi
 
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