Removing User Controls

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Views: 245 | Replies: 2 | Solved

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Join Date: Jul 2008

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010Nick

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Removing User Controls

Jul 7th, 2008

Hi I have been writing VB.Net for a few weeks,
it has been going well but I am now stuck.

I have multiple user controls on a form and I need a way to remove a selected one. I was hoping that something like this would do it

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Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Me.Controls.RemoveByKey("UserControl")
refresh_Form()
End Sub

Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Me.Controls.RemoveByKey("UserControl1")
refresh_Form()
End Sub

But this only works for Button1, I am guessing this is because each instance is not called. “UserControl” and “UserControl1”. I have added the user controls using code and was wondering if there is anything I could do at the point of adding them, to idenfy them for later on. (i.e give them a name I could use later on)

Sorry if this is a daft question, it’s all fairly new to me.
Many thanks in advance

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Join Date: Dec 2002

Location: West Virginia

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waynespangler waynespangler is offline

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Re: Removing User Controls

Jul 7th, 2008

Try this:

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        If Me.Controls.Contains(UserControl1) Then
            Me.Controls.Remove(UserControl1)
        End If

Last edited by waynespangler : Jul 7th, 2008 at 10:09 pm.

Wayne

It is hard to understand how a cemetery can raise its burial rates and blame it on the cost of living.

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Join Date: Jul 2008

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010Nick

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Re: Removing User Controls

Jul 8th, 2008

Thanks for the reply,

This is what I ended up using.
Live and learn

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Public Class Form1
    Public Mycontrol As New UserControl
    Public Mycontrol1 As New UserControl

    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Add_controls()
    End Sub

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Remove_controls(Me.Mycontrol)
    End Sub
End Class

Module Module1
    Sub Add_controls()
        'add two user controls'
        Form1.Mycontrol.Location = New Point(0, 0)
        Form1.Controls.Add(Form1.Mycontrol)

        Form1.Mycontrol1.Location = New Point(60, 60)
        Form1.Controls.Add(Form1.Mycontrol1)
    End Sub
    Sub Remove_controls(ByVal _Countrol As Control)
        'remove a control'
        If Form1.Controls.Contains(_Countrol) Then
            Form1.Controls.Remove(_Countrol)
        End If
    End Sub
End Module