How can ı add row numbers like this:
GROUP 1
RowNumber ID Name Age
1 231 test 43
2 32
RDLCs have a RowNumber("ScopeName")
Function. This will return the row number of the record within the given scope.
You can see the existing groups for the report below the designer under a "Row Groups" and "Column Groups" headers. Select the column inside the grouping where you want the row number and view the Row Columns, The default names will be:
[(Group1)
≡(Details1)
Set the expression for the Row Number column to be
=RowNumber("Group1")