title: SSRS: Getting Value From A Particular Textbox
body: <p>I am using Visual Studio 2012 for SSRS purposes.</p>
  
  <p>Currently, in my SSRS report, I have the following setup in my tablix/matrix:</p>
  
  <p><a href="https://i.stack.imgur.com/uBheh.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/uBheh.png" alt="enter image description here"></a></p>
  
  <p>Basically, I have row groups of Date and Mailbox and my first column is Starting which is number of records when starting of a particular date.</p>
  
  <p>When I initially preview the report, this is what shows up:</p>
  
  <p><a href="https://i.stack.imgur.com/oT3iJ.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/oT3iJ.png" alt="enter image description here"></a></p>
  
  <p>Right now, in my total box, I have it as sum(starting) which is wrong and doesn't make sense. I basically want the First(Sum(Starting)) but I know SSRS is currently not allowing me to do that.</p>
  
  <p>And I can't do First(Starting) because when I do my drilldown, it looks like this (I blurred out particular mailboxes):</p>
  
  <p><a href="https://i.stack.imgur.com/vPIiY.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/vPIiY.png" alt="enter image description here"></a></p>
  
  <p>So basically if I did First(Starting), it would pull in 25, instead of 339, because that's technically the first value.</p>
  
  <p>How do I write an expression for the total line in Starting where I can get the first value that shows up underneath the Starting column where it is Sum(Starting) which in this case would be 339.</p>