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Asked: 2026-05-12T05:09:45+00:00

I have an aspx page with three web controls: one to control the List

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I have an aspx page with three web controls: one to control the List Users page, one to control the Edit Users page, and one to control the Add User page. I have discovered a method for accessing these elements, but it seems to be limited. Here is what I have done: 

Protected Sub editUser(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewEditEventArgs)
        'set selected user from gridview.
        Dim index As Integer = e.NewEditIndex
        Dim userId As Integer = gvListUsers.DataKeys(index).Value
        Session.Item("SelectedUserId") = userId

        'show edit page, hide list and add page.
        With Page.Form.Controls(1)
            .Controls(getControlId("loadAddUser")).Visible = False
            .Controls(getControlId("loadEditUser")).Visible = True
            .Controls(getControlId("loadListUser")).Visible = False
        End With
    End Sub

The getControlId function looks like this:

Public Function getControlId(ByVal control As String) As Integer
        Dim enumer As System.Collections.IEnumerator = Page.Form.Controls.Item(1).Controls.GetEnumerator
        Dim i As Integer

        For i = 0 To (Page.Form.Controls.Item(1).Controls.Count - 1)
            If Page.Form.Controls(1).Controls.Item(i).ID = control Then
                Return i
            End If
        Next
        Return Nothing
    End Function

This works in most cases. However, I am unable to access the “enabled” attribute of these web controls. Why is this, and how might I access that attribute?

Thanks 🙂

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1 Answer

  1. Editorial Team

    You could raise events from your UserControls which you subscribe to in the parent ASPX page. In the parent page event action you could enable/disable your controls,

    Here’s an example of events in UserControls: http://codebetter.com/blogs/brendan.tompkins/archive/2004/10/06/Easily-Raise-Events-From-ASP.NET-ASCX-User-Controls.aspx

    Something else to think about: are you getting any benefit from moving this code into usercontrols? Would any of the individual controls be re-usable on their own? Creating tightly coupled controls that rely on each other being present doesn’t give you much re-usability of the individual controls.

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