requiredfieldvalidator from code behind

[Erin]

Hi,
How to set a requiredfieldvalidator from code behind.any one can show me a sample?
 
Thanks
Erin

[Princy]

Hi Erin,

Please try the following code snippet.

ASPX:

<telerik:RadGrid ID="RadGrid1" runat="server" AutoGenerateColumns="false"          


AutoGenerateEditColumn="true" AllowPaging="true" OnItemCreated="RadGrid1_ItemCreated" >


  <MasterTableView DataKeyNames="OrderID">

        <Columns>

          <telerik:GridBoundColumn UniqueName="OrderID" DataField="OrderID" HeaderText="OrderID" />

          <telerik:GridBoundColumn DataField="ShipCity" HeaderText="ShipCity" UniqueName="ShipCity" />

         </Columns>

 </MasterTableView>

</telerik:RadGrid>

C#:

protected void RadGrid1_ItemCreated(object sender, Telerik.Web.UI.GridItemEventArgs e)
    {

        if (e.Item is GridEditableItem && e.Item.IsInEditMode)
        {
            GridEditableItem item = e.Item as GridEditableItem;
            GridTextBoxColumnEditor editor = (GridTextBoxColumnEditor)item.EditManager.GetColumnEditor("ShipCity");
            TableCell cell = (TableCell)editor.TextBoxControl.Parent;
            RequiredFieldValidator validator = new RequiredFieldValidator();
            validator.ControlToValidate = editor.TextBoxControl.ID;
            validator.ErrorMessage = "*";
            validator.ForeColor = Color.Red;
            cell.Controls.Add(validator);
        }
  }

Thanks,
Princy