title: Sum Value of The Column in Telerik Report
body: <p>Hi I have a simple yet confusing problem when creating Telerik Report in Visual Studio.
  Is it possible to set the value of textbox from table value ?</p>
  
  <pre><code>| Score    | Total Score | Weight    | Total Score   |
  ------------------------------------------------------
  | 3        | 5           | 20%       | 1             |
  | 2        |             |           |               |
  ------------------------------------------------------
  | 4        | 4           | 10%       | 0.4           |
  ------------------------------------------------------
  | 5        | 5           | 5%        | 0.25          |
  </code></pre>
  
  <p>I have a textbox to show the sum of Total Score column, so it will have 1.65 as the value. How can i do that?</p>