Hi democloud,

Using the below article i have created the example.

Display Serial Number (Row Number) in RDLC Reports

For autoincrement value Right click on the cell of the column and click on Expression option in the context menu and write down the expression as below.

Note: For leading zero i have used Right function.

="ABC" & Right("0" & RowNumber(Nothing), 2)

Finally run the project and you will see the autoincrement value automatically being generated and displayed.