Rdlc report drill-down items can be folded and expanded

Rdlc report drill-down items can be folded and expanded

Recently, I used the rdlc report and the column grouping and row grouping of the matrix. However, the data volume is large, and the width and height of the screen display far exceed the user's vision range, it takes both the left and right sides and the left and right sides to be dragged up and down in order to make a comprehensive view, resulting in a poor customer experience. After searching for information on the Internet, I found a blog post about the foldable and expanded Effect of report items (Http://www.cnblogs.com/waxdoll/archive/2010/04/20/337822.html4. Drilling Reports with subreports ). It may be because the younger brother is too dull to figure out how to achieve similar effects. I have tried to figure out how to set the folding effect. Sharing.