title: How to apply grouping on two columns combine in rdlc report
body: <p>I have an rdlc report in my C# application. It is bind by a dataset which shows the result from a Stored Procedure. My report has 4 columns "From - To - Arr. - Depr" as shown
  <img src="https://i.stack.imgur.com/5xQBt.png" alt="Report data without grouping"></p>
  
  <p>The Dataset has one more column of Date. I want to apply grouping on two columns (Arr. &amp; Dest) combine with respect to Date so that for each unique date, the report shows the values of [Arr.] &amp; [Dest.] side by side. Currently I've applied grouping on these two columns separately and got following result
  <img src="https://i.stack.imgur.com/sxw5f.png" alt="report with Grouping"></p>
  
  <p>How can I apply single grouping on two columns (Arr. &amp; Dest) combine w.r.t Date so that I got a group of Arr. &amp; Dest columns for each unique date?</p>