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GridDropDownColumn how binding with datakeyvalues

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shanker bangari
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shanker bangari asked on 07 Apr 2010, 10:13 PM
Hi,

this is shanker ,I am doing one application .My requirement is GridDropDownColumn  binding and filter with datakeys values How to solve this problem am using this code .But it's not working .I am getting this error object reference.

thisn is my  code   

if (e.ColumnEditor is GridDropDownColumnEditor)
            {
               int? session_id = TeacherBysessiongrid.MasterTableView.DataKeyValues[e.Column.EditFormColumnIndex]["session_id"].ToString().GetInteger();
                int? facilty_id = LogonDetails.Instance.sys_lclvar_default_facility_id;
                (e.ColumnEditor as GridDropDownColumnEditor).DataSource = teacherattendancemanager.sch_view_teacher_absence_session_substitute_teacher_lookup(facilty_id, RadsessionAttendancedate.SelectedDate.Value);
            }

how to solve this problem

thanks and regards
shanker.B

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Veli
Telerik team
answered on 08 Apr 2010, 04:28 PM
Hello shanker,

Programmatically binding the dropdown editor of the GridDropDownColumn is not a supported scenario, mainly because with no datasource assigned to the column itself, the column cannot bind its cells in view mode. Consider using a GridTemplateColumn instead.

Best wishes,
Veli
the Telerik team

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