Repeat Headers when Grouping with ReportViewer

There is something completely unintuitive when creating RDLC reports with Visual Studio 2010 (and Visual Studio 2008).

If your Tablix report has repeating groups, and you wish to repeat the headers at the top of a page, you’ll need to perform the following contortions.

Repeating Headers

1. In Design view, select the table. The Grouping pane displays the row groups.
2. On right side of the Grouping pane, click the down arrow, and then click Advanced. The Grouping pane displays static and dynamic tablix members for each group. You can only set properties on a static tablix member.
3. In the Row Groups pane, click the static tablix member for the row that you want to repeat. When you select a static tablix member, the corresponding cell on the design surface is selected, if there is one. The Properties pane displays the properties for the selected tablix member.
4. Set the KeepWithGroup property in the following way:
   1. For a static row that is above a group, click After.
   2. For a static row that is below a group, click Before.
5. Set the RepeatOnNewPage property to True.

Reference:

How to: Display Row and Column Headers on Multiple Pages (Reporting Services) http://msdn.microsoft.com/en-us/library/cc627566.aspx