How to change background color of alternative row in rdlc

In your report designer surface, you need to select the data row that contains your data. When you look at the Properties box for that data row, you will see a property call BackgroundColor - open the dropdown, and you'll see all the usual colors - but also a menu item at the bottom called Expression. When you select that item, a dialog box will open that allows you to insert an expression to determine the background color for that row. Try this = IIF(RowNumber("CarsWithNoMakeDataSet") Mod 2 = 0, "LightGrey", "Transparent")