VB Migration Partner

KNOWLEDGE BASE - Forms and controls


Previous | Index | Next 

[PRB] PictureBox, Frame and other container controls don’t correctly process the Tab key if TabStop=False

If the VB6 application uses a PictureBox or a Frame control as a container for other control and the container’s TabStop property is False, you might observe either of the following problems in how the Tab key is processed:

  1. if the input focus is on a control outside the container, pressing the Tab key never brings the focus to a control inside the containere
  2. if the last control (in TabIndex order) inside the container has the input focus, pressing the Tab key has no effect

This problem is caused by the way in which the .NET Framework deals with container controls and shouldn’t be considered as a VB Migration Partner’s bug.

The only way workaround for this problem is setting the container control’s TabStop property to True. The easiest way to do so is using a WriteProperty pragma:

        '## REM change the TabStop property of the picContainer PictureBox control
        '## picContainer.WriteProperty TabStop, True

A similar problem can occur with other container controls.

Previous | Index | Next 




Follow Francesco Balena on VB6 migration’s group on

LinkedIn





Read Microsoft Corp’s official case study of a VB6 conversion using VB Migration Partner.




Code Architects and its partners offers remote and onsite migration services.

More details




Subscribe to our free newsletter for useful VB6 migration tips and techniques.

newsletter



To learn more about your VB6 applications, run VB6 Analyzer on your source code and send us the generated text file. You will receive a detailed report about your VB6 applications and how VB Migration Partner can help you to quickly and effectively migrate it to .NET.

Get free advice



A fully-working, time-limited Trial Edition of VB Migration Partner allows you to test it against your actual code

Get the Trial




The price of VB Migration Partner depends on the size of the VB6 application, the type of license, and other factors

Request a quote




Migrating a VB6 application in 10 easy steps

Comparing VB Migration Partner with Upgrade Wizard

Migration tools: Feature Comparison Table

All whitepapers