Hello Khizar Khan,
Regarding your questions:
1. You can disable grouping for specific columns in RadGridView by setting the AllowGroup property to false. Here is a sample:
You can fully customize the group row text by handling the GroupSummaryEvaluate
method. You can find a sample in this blog article.
I hope this helps. If you need further assistance, please write back.
the Telerik team
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