Create a customized DataGridViewColumn

[Guest]

I would like to create a customized DataGridViewColumn called
DataGridViewCheckedListBoxColumn. I'd like the ability to multi-select items
in the list. Does anyone know of an example of how this is done?

 

[Jeffrey Tan[MSFT]]

Hi Steve,

Creating customized column in DataGridView is build-in supported in its
control model. To achieve this, you should complete the following 3 tasks:
1. Define classes that derive from DataGridViewColumn.
2. Define classes that derive from DataGridViewCell.
3. Define a class that derives from Control and implements the
IDataGridViewEditingControl interface.

Since you want to define a DataGridViewCheckedListBoxColumn, you may use
the build-in CheckedListBox control/class to complete these 3 tasks. The 2
articles below provided the detailed information and sample code regarding
creating customized column in DataGridView in both C# and VB.net:
"How to: Host Controls in Windows Forms DataGridView Cells"
http://msdn2.microsoft.com/en-us/library/7tas5c80.aspx
"How to: Customize Cells and Columns in the Windows Forms DataGridView
Control by Extending Their Behavior and Appearance "
http://msdn2.microsoft.com/en-us/library/7fb61s43.aspx

By following the sample code and steps, it is not hard to create out the
DataGridViewCheckedListBoxColumn.

Hope this helps.

Best regards,
Jeffrey Tan
Microsoft Online Community Support
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[Guest]

I'll review this material and see if I can get the customized column
implemented. Thanks for the lead. I'll let you know the results.

 

[Jeffrey Tan[MSFT]]

Ok, I will continue to monitor this thread for any feedback.

Additionally, another trick for this issue is using Reflector to view the
source code of existing well-working DataGridView***Column implementation.
For example, you may use Reflector to view various methods/properties code
of DataGridViewButtonColumn class. It will provide much useful information
to you.

Thanks.

Best regards,
Jeffrey Tan
Microsoft Online Community Support
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that require urgent, real-time or phone-based interactions or complex
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[Guest]

How is "Reflector" used in this manner? I don't understand reflection very
well.

 

[Jeffrey Tan[MSFT]]

Hi Steve,

*Reflector* is a tool written by Microsoft engineer Lutz Roeder. It uses
.Net Reflection to parse the internal information of the .Net FCL
assemblies. It also decomplies the MSIL code in the FCL into various
languages, such as C#, VB.net, IL etc... It is somewhat like ILdasm.exe in
.Net Framework, but provides higher level language(C#) display. Using it,
you can see the source code of .Net FCL. It is a must have tool for .Net
developer. You may download it for free in the link below:
http://www.aisto.com/roeder/dotnet/

In your scenario, you may use Reflector to view the source code of such as
DataGridViewButtonColumn class, which provides you a complete sample
implementation.

If you still have anything unclear, please feel free to tell me, thanks.

Best regards,
Jeffrey Tan
Microsoft Online Community Support
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[Guest]

I'm making headway. Not here quite yet but getting close.

 

[Jeffrey Tan[MSFT]]

Hi Steve,

Glad to hear that. If you meet any problem that is hard to workaround,
please feel free to post here, we will discuss with you on it.

Additionally, by going through implementing the customized
DataGridViewColumn, you will get a deeper understanding of DataGridView
column model.

Best regards,
Jeffrey Tan
Microsoft Online Community Support
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most efficient resolution. The offering is not appropriate for situations
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http://msdn.microsoft.com/subscriptions/support/default.aspx.
==================================================
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