title: compute datatable with many filters
body: <p>data table with 3 columns ( Quantity - SOP_Type - Item_Number)
  I want to compute sum of column Quantity for the item with number &quot;309-032-SHU&quot; and SOP_Type = 3
  I tried this code and didn't work</p>
  <pre><code>Dim b As String
  b = &quot;309-032-SHU&quot;
  dim c as integer
  c = 3
         
  DGV1.Rows(0).Cells(0).Value = NAJRNDataSet.vwSalesLineItems.Compute(&quot;SUM(Quantity)&quot;, &quot;Item_Number = &quot; &amp; b &amp; &quot; &quot;, &quot;SOP_Type = &quot; &amp; c &amp; &quot; &quot;)
          
  </code></pre>