asked on

Building a composite custom control...

I have built a custom control that has a Button on it.
I have added a property in my control so that I can change the button in design mode. The problem is that any changes I make are not reflected once I run the program.

Imports System.ComponentModel
Public Class UserControl1
    <Description("Config Button"), Category("CONFIG")> _
    Public Property ConfigButton() As Button
        Get
            Return m_btnConfig
        End Get
        Set(ByVal value As Button)
            m_btnConfig = value
        End Set
    End Property
End Class

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VBRocks

It's not persisted. I think you'll need to set it at runtime (like when the form loads).

aferia

ASKER

That is what I wa afraid of. I really needed to be able to change the button in design mode. I was thinking of having a several properties connected directly to the buttons members (ie: button.Text, button.Visible, etc). That seems to work fine, but it is just not ideal. Is there really no way to make the information persist from design to run-time?

PaulHews

You want to create a designer for your control:

ASP.NET Control Designers Overview
http://msdn.microsoft.com/en-us/library/wxh45wzs.aspx

aferia

ASKER

There is a lot of information in the link you have given. I have been looking over it, but I have not found anything that applies for what I need. Is there a place with code samples or a tutorial on how to do the specific thing that I am trying to?

PaulHews

I may be off base. Is this an ASP.NET custom control or for WinForms?

aferia

ASKER

I'm actually trying to create a custom control to be used with Forms in a Visual Basic .NET aplication... so WinForms. I have been researching for hours now and I cant find anything that explains what I am trying to do.

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PaulHews

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aferia

ASKER

That was exactly what I was looking for. Thanks so much! But I have another issue with a DataGridView though, when I try setting the "Columns" it gives me the null reference error. Do you know why?