I am new to the SSRS and Have data like to be present as below. They are all from the same dataset, just like to group 2 columns, that is [WrkCrtId, Name] show on top of them. I've tried some ways to do this but still fail, I was wondering if any one can help?
p.s. the image below shows 2 groups (B3 and B7)

This is fairly simple to do. This is a quick summary of the things to do from memory so it may not be 100% correct.
detailsgroup and chooseAdd Group -> Parent Group. Select WrkCtrId as theGroup Bycolum. and Check theAdd Group Headeroption too.Insert Row -> Inside Group - Below.Merge. You can now centre justify the merged cells.Below is the report design. I've just used geographical data as a sample dataset but the theory is the same.
And here is the final output.
Hope this helps and good luck!