I found the colspan and rowspan property defined in TablixCell,but in report Designer still can\'t vertical merge cells,if i modify the RDL xml file manually set Rowspan,the
As far as I know, the only way to merge vertically, is to use a Matrix instead of a Table.
http://gotreportviewer.com/matrices/index.html
So my trick is I highlighted the top row of the column I wanted to merge the cells, and changed the border properties to remove the bottom line. When you preview the report, the cells look merged.
If this is only for display purposes, you could try putting a table inside a table. SSRS will let you do this if you delete the grouping columns on the outside table.
Otherwise you are limited to the vertical grouping with Matrices, which still has restrictions on where the vertical merging takes place.
You have to use Matrix instead of Table. I resolved my this problem by creating a matrix same to tablix, below: