"mohit" <mohitag_agrawal@yahoo.co.in> wrote in message
news:1135440641.403270.68980@g47g2000cwa.googlegroups.com...
> Hi all,
> I am creating a web application on web matrix.I have a
> datagrid.I have the following code :
> DataTable dt=(DataTable)Session["DataGrid"];
>
> DataRow dr = dt.NewRow();
>
> DataView dv;
> First it was giving correct result.After that I run the same code then
> it is giving the following error message :
>
> Exception Details: System.NullReferenceException: Object reference not
> set to an instance of an object.
>
> for the line DataRow dr = dt.NewRow();
>
> what can be the problem??
> Any ideas???
>