Question

I am using the sorting function for the gridview and getting the above error

My sorting function is

protected void gvUserMaster_Sorting(object sender, GridViewSortEventArgs e)
{
    UserMasterClass cs = new UserMasterClass();

    ResultClass objres = cs.fn_GetUserMasterList();
    if (objres.bStatus)
    {
        eslist<UserMasterClass> OBJLIST = objres.objData as eslist<UserMasterClass>;
        if (OBJLIST.Count > 0)
        {

            DataTableConverter<UserMasterClass> dt = new DataTableConverter<UserMasterClass>();
           dt.GetDataTable(OBJLIST);

            if (dt != null)
            {

                DataView dataView = new DataView(dt);
                dataView.Sort = e.SortExpression + " " + ConvertSortDirectionToSql(e.SortDirection);

                gvUserMaster.DataSource = dataView;
                gvUserMaster.DataBind();
            }
        }
    }
}

I am getting the error on this line DataView dataView = new DataView(dt);

Thanks,

Answer 1

Yes, you’re trying to pass a DataTableConverter<UserMasterClass> into a constructor which expects a DataTable. You’re also calling GetDataTable and ignoring the result, just beforehand. Perhaps you meant:

DataView dataView = new DataView(dt.GetDataTable(OBJLIST));

(As an aside, your naming conventions are all over the place – I’d strongly advise you to follow the normal .NET conventions.)