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Setting multiple ListTextField values to a GridDropDownColumn in RadGrid View mode (NOT in RadGrid Edit mode)

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George
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George asked on 05 Dec 2012, 10:41 AM

Hello,

i have a GridDropDownColumn connected to a DataSource and i get an error when i try to set the ListTextField property like this: ListTextField = "Field1, Field2". How can i achieve this programmatically in radgrid view mode?

I have written the following code to achieve this in radgrid edit mode:

if (e.Item is GridEditableItem && e.Item.IsInEditMode)
       {
 
           GridEditableItem editItem = (GridEditableItem)e.Item;
 
           RadComboBox combo = (RadComboBox)editItem["Field1"].Controls[0];
 
           combo.ItemDataBound += new RadComboBoxItemEventHandler(combo_ItemDataBound);
 
       }
 
   void combo_ItemDataBound(object sender, RadComboBoxItemEventArgs e)
   {
       RadComboBoxItem item = (RadComboBoxItem)e.Item;
 
       DataRowView dr = (DataRowView)e.Item.DataItem;
 
       item.Text = item.Text + " ( " + dr["Field2"].ToString() + " " + dr["Field3"].ToString() + " ) ";
 
   }

Thank you very much.

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Princy
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answered on 05 Dec 2012, 11:06 AM
Hi,

Here is the sample code that I tried to achieve your scenario.
C#:
protected void RadGrid2_ItemDataBound(object sender, Telerik.Web.UI.GridItemEventArgs e)
{
 if (e.Item is GridDataItem)
 {
   GridDataItem item = (GridDataItem)e.Item;
   DataRowView row = (DataRowView)e.Item.DataItem;
   item["uniquename"].Text = row["Field1"].ToString() + " " + row["Field2"].ToString();
 }
}

Thanks,
Princy.
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George
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answered on 05 Dec 2012, 11:39 AM
Princy, thank you very much for your quick answer.

Something with the code you wrote is wrong: I take the message: "Field1 is neither a DataColumn nor a DataRelation for table DefaultView".

I think that the problem is that this code binds data from the datasource connected to the RadGrid and not to the GridDropDownColumn.
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Princy
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answered on 06 Dec 2012, 04:48 AM
Hi,

I was able to replicate this issue when I binded the dropdown with a field that does not exist in the datatable. Please make sure that the field you are binding exists in the datasource of the GridDropDownColumn. Hope this helps.

Thanks,
Princy.
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George
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George
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