Hi Parag,

I put together a small sample that binds the XamDataGrid to some data.  I then grouped by one of the columns and ran a timer which periodically updates the data in that column.  Using the latest build for 14.2, I do not see the grouping header becoming an empty string.  I have attached my sample so you can take a look.

What is the version number for the Infragistics assemblies that you are using?  Maybe you are using an older build?

Hi Rob, we are using 14.1. I have seen the issue at occasions. Some days its frequesnt other days its not. We also suspect it may have something to do with null values in grouped columns.

What specific build of 14.1 are you using so I can test against that?  You can find the version number if you look at your project references and select one of the Infragistics DLLs, then view it's properties.  One of the properties is the version number.

14.1.20141.2062

Rocky said:

Also we use this event handler to regroup grid on new data -

private void OnInitializeRecordDirect(object sender,InitializeRecordEventArgs e)

{

if (e.SortValueChanged || !e.ReInitialize)

{

e.Record.RefreshSortPosition();

}

}

Had similar problems with the grouping headers not always shown when changing the data source (even though the grid items would still be grouped) and this helped to fix part of my problem. Thanks!

Did you manage to download the 14.1.2261 service release?

14.1.20141.2062 is an older version.  We currently have 14.1.20141.2261 available which is a couple of versions ahead of yours.  Since I can't reproduce the issue on my end to confirm if this will actually fix it, I can't say for sure if this will do the trick or not.  But I recommend you update anyway just to be sure.  You can download it from your account on the Infragistics website.  Just click on your 14.1 product key and scroll down to the bottom of the page.  Then click on the Service Release tab.

we use version 14.1.20141.2062. Is that the service release?