Accessing Readonly/Hidden Fields in Edit Mode (RadGrid)

[MK]

I checked following link:

http://www.telerik.com/community/forums/aspnet-ajax/grid/accessing-readonly-hidden-fields-in-edit-mode-radgrid.aspx#2292669 

but when i used given code then i got following error-

protected void RadGrid1_UpdateCommand(object source, GridCommandEventArgs e)

{

GridEditFormItem Data = (GridEditFormItem)e.Item;

string strHiddenField=Data.ParentItem["ProductName"].Text;

Hashtable ht = new Hashtable();

Data.ExtractValues(ht);

ht.Add("ProductName", strHiddenField);

}

Unable to cast object of type 'Telerik.Web.UI.GridDataItem' to type 'Telerik.Web.UI.GridEditFormItem'

Any solve it? 

[Shinu]

Hi,

I guess you are using 'InPlace' edit mode for the RadGrid. Please try using 'GridEditableItem' instead of 'GridEditFormItem'.

C#:

protected void RadGrid1_UpdateCommand(object source, GridCommandEventArgs e)
{
      GridEditableItem Data = (GridEditableItem)e.Item;
      string strHiddenField=Data.ParentItem["ProductName"].Text;
      Hashtable ht = new Hashtable();
      Data.ExtractValues(ht);
      ht.Add("ProductName", strHiddenField);
}

Thanks,
Shinu.

[MK]

Yes i am using "InPlace" Edit mode.

I tried given code but i got a following error-

'Telerik.Web.UI.GridEditableItem' does not contain a definition for 'ParentItem' and no extension method 'ParentItem' accepting a first argument of type 'Telerik.Web.UI.GridEditableItem' could be found (are you missing a using directive or an assembly reference?)

[Casey]

Hi MK,

While debugging the UpdateCommand event were you able to verify that e.Item is in fact a GridEditFormItem? If not, I'm guessing that using InPlace for the edit mode causes e.Item to be a GridDataItem. If that is the case, then you should be able to get your column's value by casting e.Item as a GridDataItem and referencing the hidden column that way.

I hope this helps!
Casey

protected void RadGrid1_UpdateCommand(object source, GridCommandEventArgs e)
{
      //Breakpoint here to determine what e.Item really is
      GridDataItem Data = (GridDataItem)e.Item;
      string strHiddenField=Data["ProductName"].Text;
      Hashtable ht = new Hashtable();
      Data.ExtractValues(ht);
      ht.Add("ProductName", strHiddenField);
}