title: How edit dataset column value in asp.net
body: <p>Hi i have dataset having one table have 5 columns fill data from database.</p>
  
  <p>When i run application datatable contains more than 50 rows, I would like to update value of datatable after getting data from databse. My requirements are</p>
  
  <ol>
  <li>This table have few cells having Null value, I would like to replace null with "-" ?</li>
  <li>One column is System.datetime datatype, where i would like to remove time. I would only like to have date?</li>
  </ol>
  
  <p><strong>I am using this dataset in crystal report of asp.net using PUSH approach.</strong> </p>
  
  <p>Here i am thinking that i apply one loop of rows present in datatable and update cells accordingly. But i am searching any direct update method?</p>
  
  <p>Please help me how can i solve above 2 issue?</p>