Reporting Services: Tablix RepeatColumnHeaders doesn't work on some reports -

So I get many reports in which a dataset is created in a testic ... Beautiful garden variety items For each report, there is a property for the Tablix control named Repeat column headers , which I have set to true for this property "Explanation" indicates whether each Column headers are repeated on the page, as No part of the data area is visible. " Looks very simple, but it works on some reports and it does not have on others. I can not find separately about the reports that can affect it. In a report where the headers repeat, there are some quite mysterious groupings in Mojo, but in the example where it does not work, there is only one level - no group. I hope that there will be a problem with multi-nested, not flat

Perhaps this is a completely different problem. I tossed a simple tables rendering together Foo to SELECT * , accepted all the default values, as a result repeat column headers were set to False , and And column header

This is slightly inconsistent with what I have succeeded in digging. In your grouping pane, select the advanced mode, then select your most stable row, you can "repeat" again On Newpage "property will appear.

Update: Find advanced mode :
The link written by HCL, contains information about obtaining information and enter advanced mode:

Select Tablics

Below the report are the "row group" and "column groups", "column groups" is a small down arrow.

Click on the arrow, choose advanced mode.