Question

I have a gridview and sqldatasource.

I'm using : SqlDatasource1.SelectCommand = "Select Name from Table Where RowID=@RowID";

how can I check if the the selectedcommand returned null ( no value found )

Thanks

Answer 1

You could use:

DataSet ds = new DataSet();
sqlAdapter.Fill(ds);

if (ds.Tables[0].Rows.Count == 0)
{
     pnlQueryResults.Visible = true;
}
else
{
     pnlQueryResults.Visible = false;
}

gridView.DataSource = ds;

Markup:

<asp:Panel ID="pnlQueryResults" runat="server" Visible="false">
     <div>
         <p>Your query returned no results.</p>
     </div>
</asp:Panel>