How would that be possible to set the Expression value at runtime?

[Pooya]

I have a RadGrid with 1 detail table which is defined declaratively and I'm using 2 SqlDataSources; one for the master table and the second for the detail table.

My detail table has a GridCalculatedColumn:

 <telerik:GridCalculatedColumn HeaderText="Duration (calculated)" DataType="System.String"
                            DataFields="Duration" UniqueName="Duration-custom" Expression="1">
                        </telerik:GridCalculatedColumn>

How would that be possible to set the Expression value at runtime?

I'd like to set this value to the expression:

TimeSpan.FromSeconds({0})

which returns data in this format in C#: d.hh:mm:ss e.g. 1.10:10:10

Thanks,

[Tsvetina]

Hi Pooya,

You could set the Expression property on Page_Load:

protected override void OnLoad(EventArgs e)
{
    base.OnLoad(e);
    (RadGrid1.MasterTableView.GetColumnSafe("CalculatedCol") as GridCalculatedColumn).Expression = "{0}*{1}";
}

If the column is inside the details table, you would need to access the nested table as shown in this helps article:
http://www.telerik.com/help/aspnet-ajax/grid-traversing-detail-tables-items-in-grid.html

All the best,
Tsvetina
the Telerik team