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Access CheckBox controls

Posted on 2013-01-30
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Last Modified: 2013-01-30
Hi...Can i please have a guideline on how to access a checkBox within controls?
Form->TabControl1->TabPage2->GroupBox->CheckBox (Change the CheckState)
There is No Problem when i am trying access the CheckBox in TabPage1
But when i try in TabPage2 nothing happens..
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Expert Comment

by:CodeCruiser
ID: 38834824
Is tabpage2 in focus when you try? Controls on tabpages not shown yet are not created unless that tabpage gets focus.
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Author Comment

by:John (Yiannis) Toutountzoglou
ID: 38834829
No TabPage1 is the one it has Focus...so is that the reason why? i know the theory but i imagine that because the controls are placed in the document outline in this siries it is possible to have an access
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Accepted Solution

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CodeCruiser earned 250 total points
ID: 38834854
Try shifting focus to tabpage2 before accessing the checkbox. Otherwise, you can put this logic in tabpagechanging event and set the controls when tabpage2 gets focused by user.
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Author Comment

by:John (Yiannis) Toutountzoglou
ID: 38834857
Ok...I will use then the TabControl1.Selected Event and acess then the desire Control...
Thank you Nasir!
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LVL 18

Author Comment

by:John (Yiannis) Toutountzoglou
ID: 38835501
Just for info ...my final code ....
Private Sub TabControl1_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TabControl1.SelectedIndexChanged
        Try
            If DirectCast(sender, TabControl).SelectedIndex = 1 Then 'Is the Second Tabpage
                For i As Integer = 1 To 3
                    For Each ctl As Control In Me.TabPage2.Controls.Find("Page2GroupBox" & i, True)(0).Controls
                        If TypeOf ctl Is CheckBox Then
                            If Not DirectCast(ctl, CheckBox).CheckState = CheckState.Checked Then
                                DirectCast(ctl, CheckBox).CheckState = CheckState.Unchecked
                            End If
                        End If
                    Next
                Next

            End If
        Catch ex As Exception
            MessageBox.Show(ex.Message, "ErrorOccured", MessageBoxButtons.OK, MessageBoxIcon.Error)
        End Try
    End Sub

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