[Solved] Validation for RadDropDownList in Grid EditItemTemplate

[DRG]

Validation works fine for RadTextBox but doesn't work for RadDropDownList. Need Initial value to be select.

01.<telerik:GridTemplateColumn HeaderText="SOURCE" HeaderStyle-Width="85px" UniqueName="SourceKey"
02.                                           DataField="SourceKey" Visible="true" SortExpression="Source">
03.                                           <ItemTemplate>
04.                                               <%# Eval("Source")%>
05.                                           </ItemTemplate>
06.                                           <EditItemTemplate>
07.                                               <span>
08.                                                   <telerik:RadDropDownList runat="server" ID="rddlSources" DataSourceID="odsSources"
09.                                                       DataValueField="SourceKey" DataTextField="Source" Width="83px" DefaultMessage="Select">
10.                                                   </telerik:RadDropDownList>
11.                                                   <span style="color: Red">
12.                                                       <asp:RequiredFieldValidator ID="rfvSource" ControlToValidate="rddlSources" ErrorMessage="*Required"
13.                                                           runat="server" Display="Dynamic">
14.                                                       </asp:RequiredFieldValidator>
15.                                                   </span></span>
16.                                           </EditItemTemplate>
17.                                       </telerik:GridTemplateColumn>
18.                                       <telerik:GridTemplateColumn HeaderText="ACCOUNT" HeaderStyle-Width="100px" SortExpression="Account"
19.                                           UniqueName="Account" DataField="Account">
20.                                           <ItemTemplate>
21.                                               <asp:Label runat="server" ID="lblAccount" Text='<%# Eval("Account") %>'></asp:Label>
22.                                           </ItemTemplate>
23.                                           <EditItemTemplate>
24.                                               <span>
25.                                                   <telerik:RadTextBox Width="98px" runat="server" ID="rtxtAccount">
26.                                                   </telerik:RadTextBox>
27.                                                   <span style="color: Red">
28.                                                       <asp:RequiredFieldValidator ID="rfvAccount" ControlToValidate="rtxtAccount" ErrorMessage="*Required"
29.                                                           runat="server" Display="Dynamic">
30.                                                       </asp:RequiredFieldValidator>
31.                                                   </span></span>
32.                                           </EditItemTemplate>
33.                                       </telerik:GridTemplateColumn>

 

[Shinu]

Hi,

I have tried your code and it works fine at my end. The RequiredFieldValidator fires when no item is selected in the DropDownList. You can set InitialValue for the validator to select as follows:

ASPX:

<EditItemTemplate>
    <telerik:RadDropDownList runat="server" ID="RadDropDownList" DataSourceID="SqlDataSource" DataValueField="ID" DataTextField="City" DefaultMessage="Select">
    </telerik:RadDropDownList>
    <asp:RequiredFieldValidator ID="Validator" ControlToValidate="RadDropDownList" ErrorMessage="*Required" runat="server" Display="Dynamic" InitialValue="Select" ForeColor="Red">
    </asp:RequiredFieldValidator>
</EditItemTemplate>
</telerik:GridTemplateColumn>

Thanks,
Shinu

[DRG]

This is on a RadGrid with Batch edit mode. Attached Image showing validator not being fired.  Works fine if pulled out of the grid.

Thanks.

[Angel Petrov]

Hi,

Please try replacing the RadDropDownList with a RadComboBox and test whether this resolves the problem. Additionally you can try validating the cell manually by cancelling the OnBatchEditClosing event if a value is not selected in the drop down.

Regards,
Angel Petrov
Telerik