Solved

Upgrade Wizard issues - DefInstance!!

Posted on 2004-03-27
2
297 Views
Last Modified: 2008-03-17
Hi,

Thanks for clicking.

I've converted over my appication from vb6 to vb.net.

As part of the upgrade wizard it uses DefInstance property to reference controls within a form from outside that form.

I've hit problems with DefInstance when initializing a new instance of a form. In short it ends up in a repeating loop due to the initialisation of the form calling DefInstance for a control before form has been initialized properly

Is there a way around using DefInstance?? How are controls referenced from outside that form if creating vb.net project from new.
0
Comment
Question by:StuartK
2 Comments
 
LVL 96

Accepted Solution

by:
Bob Learned earned 125 total points
ID: 10704130
Hard to tell without seeing more information about what the converted code looks like.

In VB.NET, you need to have an instance variable to reference something on a form.  That is what DefInstance is supposed to do.  If you are starting with a VB.NET application, you would dimension a variable, and then reference the properties and methods from the variable:

Dim frm As New Form1
MsgBox(frm.TextBox1.Text)

Bob
0
 

Author Comment

by:StuartK
ID: 10869169
Hi Bob,

Noticed this is still open.

Just for your knowledge. Have removed DefInstance by Form1.DefInstance with m_Form1.

Public m_Form1 As Form1

and then

m_Form1 = New Form1

Thanks as always for your help
0

Featured Post

Courses: Start Training Online With Pros, Today

Brush up on the basics or master the advanced techniques required to earn essential industry certifications, with Courses. Enroll in a course and start learning today. Training topics range from Android App Dev to the Xen Virtualization Platform.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Welcome my friends to the second instalment and follow-up to our Minify and Concatenate Your Scripts and Stylesheets (http://www.experts-exchange.com/Programming/Languages/.NET/ASP.NET/A_4334-Minify-and-Concatenate-Your-Scripts-and-Stylesheets.html)…
In my previous article (http://www.experts-exchange.com/Programming/Languages/.NET/.NET_Framework_3.x/A_4362-Serialization-in-NET-1.html) we saw the basics of serialization and how types/objects can be serialized to Binary format. In this blog we wi…
This Micro Tutorial will give you a basic overview how to record your screen with Microsoft Expression Encoder. This program is still free and open for the public to download. This will be demonstrated using Microsoft Expression Encoder 4.
Windows 10 is mostly good. However the one thing that annoys me is how many clicks you have to do to dial a VPN connection. You have to go to settings from the start menu, (2 clicks), Network and Internet (1 click), Click VPN (another click) then fi…

785 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question