Thank you for oyur post. I have been looking into it and you can read more detailed information regaridng the differnece between the XamGrid and the XamDataGrid controls here:  http://help.infragistics.com/NetAdvantage/WPF/current/CLR4.0/?page=Differences_Between_xamGrid_and_xamDataGrid.html. Those are two different grid controls that provides some common and some different features. The XamDataGrid controls is the first grid control in our WPF products and the XamGrid was originally created as the grid control for our Silverlight product. The XamGrid control was added to the NetAdvantage for WPF in version 11.2, when the control was designed to be a cross platform control (the same control to be use in both WPF and Silverlight).

The XamDataGrid control, does not currently supports merging of the cells when grouping the grid, so what I can suggest is adding a new Product Idea for having this functionality built-in. You can suggest new Product Ideas for future versions (or vote for existing ones) at http://ideas.infragistics.com.

Steps to create your idea:

1. Log into the Infragistics Product Ideas site at http://ideas.infragistics.com (creating a new login if needed).
2. Navigate to the product / platform channel of your choice (e.g. WPF, Windows Forms, ASP.NET, HTML5 / Ignite UI, iOS / NucliOS, etc.)
3. Add your product idea and be sure to be specific and provide as much detail as possible. Explain the context in which a feature would be used, why it is needed, why it can’t be accomplished today, and who would benefit from it. You can even add screenshots to build a stronger case. Remember that for your suggestion to be successful, you need other members of the community to vote for it. Be convincing!

The benefits of submitting the product idea yourself include:

-          Direct communication with our product management team regarding your product idea.

-          Notifications whenever new information regarding your idea becomes available.

Additional benefits of the Product Idea system include:

-          Ability to vote on your favorite product ideas to let us know which ones are the most important to you.  You will have ten votes for this and can change which ideas you are voting for at any time.

-          Allow you to shape the future of our products by requesting new controls and products altogether.

-          You and other developers can discuss existing product ideas with members of our Product Management team.

The product ideas site allows you to track the progress of your ideas at any time, see how many votes it got, read comments from other developers in the community, and see if someone from the product team has additional questions for you.

Thank you for contacting Infragistics.

Sincerely,

Krasimir, MCPD

Developer Support Supervisor - XAML

Infragistics

www.infragistics.com/support

Hi Jomy,

I am just checking if the latest reply helped you out  and if you require any further assistance on the matter.

Hi Jomy,

Currently we don’t have this feature for xamDataGrid. But we have it in XamGrid: http://help.infragistics.com/NetAdvantage/WPF/2012.1/CLR4.0/?page=xamGrid_Merged_Cells.html

You can find the following forum post demonstrating how you can achieve manual cell merging in to XamDataGrid: http://ko.infragistics.com/community/forums/t/62864.aspx

Please let me know if you have any furthered questions.