Finding child controls

Hunter · October 25th, 2005, 09:47 AM

I have a page with a panel and several buttons. Clicking the buttons loads specific user controls(.ascx files) into the panel. That works fine. Those user controls contain text boxes. I want to save the values entered into those boxes. But I'm having trouble getting their values. The following code is what I have in my "save" button for testing, but it gets me nothing:

Code:

        For Each myControl As Control In Page.Controls 'All controls on the page
            For Each myControl2 As Control In myControl.Controls 'One of these should be my panel
                For Each mycontrol3 As Control In myControl2.Controls 'The only control in my panel is my user control
                    For Each mycontrol4 As Control In mycontrol3.Controls 'There should be text boxes in this collection
                        If TypeOf mycontrol3 Is TextBox Then
                            Label1.Text += CType(myControl2, TextBox).Text & ","
                        End If
                    Next
                Next
            Next
        Next

jbenson001 · October 25th, 2005, 02:35 PM

Is the Save button on the Page or on the User Control. If it is on the UserControl, it should be no problem.

jbenson001 · October 25th, 2005, 03:08 PM

If you have the save button on the page you need to do a few things:

'Assuming your user control is named WebUserConrol1 put this line at the page level.
Protected WithEvents WebUserControl11 As WebUserControl1
    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        'Call a subroutine with the user control you just declared.
        IterateThroughChildren(WebUserControl11)
    End Sub

   Private Sub IterateThroughChildren(ByVal parent As Control)

        Dim c As Control
        For Each c In parent.Controls
            If TypeOf c Is TextBox Then
                Dim tb As TextBox
                tb = CType(c, TextBox)
                Response.Write(tb.Text) '' do something with the value.

                If c.Controls.Count > 0 Then
                    IterateThroughChildren(c)
                End If

            End If

        Next c

    End Sub

Hunter · October 27th, 2005, 08:18 AM

Thanks for the help. What I'm actually trying to do now, is have the save event in the user control itself. Now I need to be able to call that Public Sub Save_Form() from the main page. Any ideas on how to do this?

jbenson001 · October 27th, 2005, 09:09 AM

Why do you need to call it from the page if you are placing the code and button on the user control?