Question

I have a DataTable that contains 3 fields: ACount, BCount and DCount. If ACount < 0 then I need to display ‘S’ in one of the columns of the GridView. If ACount > 0 then I have to display ‘D’ in that column(in label). Same thing with BCount and DCount. How can I do this conditional check in the RowDataBound function?

Answer 1

The GridView OnRowDataBound event is your friend:

<asp:gridview   id='myGrid'    onrowdatabound='MyGrid_RowDataBound'    runat='server'>    <columns>     <asp:boundfield headertext='ACount' datafield='ACount'  />     <asp:boundfield headertext='BCount' datafield='BCount' />     <asp:boundfield headertext='DCount' datafield='DCount' />     <asp:templatefield headertext='Status'>       <itemtemplate>         <asp:label id='aCount' runat='server' />         <asp:label id='bCount' runat='server' />         <asp:label id='dCount' runat='server' />       </itemtemplate>     </asp:templatefield>   </columns> </asp:gridview>  // Put this in your code behind or <script runat='server'> block protected void MyGrid_RowDataBound(object sender, GridViewRowEventArgs e) {   if(e.Row.RowType != DataControlRowType.DataRow)   {     return;   }    Label a = (Label)e.Row.FindControl('aCount');   Label b = (Label)e.Row.FindControl('bCount');   Label d = (Label)e.Row.FindControl('dCount');    int ac = (int) ((DataRowView) e.Row.DataItem)['ACount'];   int bc = (int) ((DataRowView) e.Row.DataItem)['BCount'];   int dc = (int) ((DataRowView) e.Row.DataItem)['DCount'];    a.Text = ac < 0 ? 'S' : 'D';   b.Text = bc < 0 ? 'S' : 'D';   d.Text = dc < 0 ? 'S' : 'D'; } 

I’m not sure where you want the ‘S’ and ‘D characters rendered, but you should be able to rejig to meet your needs.