Date parsed: 24/04/2008 05:38:30
Date: Thu, 24 Apr 2008 05:38:30 GMT

Hi Doug,

Creating so many controls is not a good solution in Win32/Winform GUI
programming. This is because a control is considered as a window in
Windows. Each window is associated with some resource such as Window
structure etc... Many of the resource are allocated from the Windows
desktop heap in kernel-mode.

There may be two problems regarding this:
1. If we create too many controls, the desktop heap may be exhausted. No
controls/windows can be created anymore.
2. The maximum number of controls/windows a process can create is a limited
value.

That's why IE and WPF both do not use the Win32 controls/windows, they draw
the controls themselves.

Have you considered of using DataGridView control to implement the table
style GUI application?

Anyway, if you really get this resolved, please feel free to provide a
sample project, I will give it a reproduce and examination.

Thanks.

Best regards,
Jeffrey Tan
Microsoft Online Community Support

Delighting our customers is our #1 priority. We welcome your comments and
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Date parsed: 07/05/2008 08:43:05
Date: Wed, 07 May 2008 08:43:05 GMT

Hi Doug,

Thanks for your feedback.

Oh, DataGridViewColumn does not support display two controls in the same
cell/column, we have to use both a DataGridViewCheckBoxColumn and
DataGridViewImageColumn togerther for this issue.

Regarding clicking the checkbox and switching different images in the
DataGridViewImageCell, we can first get the CheckBox in the
DataGridViewCheckBoxColumn and handle its CheckedChanged event and set
different image for the DataGridViewImageCell. Does this meet your need? If
not, can you help to explain why this does not meet your need? More
specific, what problem do you have of using DataGridView to get what you
want?

Thanks.

Best regards,
Jeffrey Tan
Microsoft Online Community Support
=========================================
Delighting our customers is our #1 priority. We welcome your comments and
suggestions about how we can improve the support we provide to you. Please
feel free to let my manager know what you think of the level of service
provided. You can send feedback directly to my manager at:
msdnmg@microsoft.com.

This posting is provided "AS IS" with no warranties, and confers no rights.