CustomValidator on GridCheckBox

[Nancy Cara]

Control 'ValidatePhoneIsPrimary' referenced by the ControlToValidate property of '' cannot be validated.

This is the error I get on my custom validator. If I change the validator to a different control to validate - like a textboxcontrol - then it works fine. But it won't work for my checkbox. 

<telerik:GridCheckBoxColumn HeaderText="Primary" DataType="System.Boolean" DataField="IsPrimary" CurrentFilterFunction="NoFilter" FilterListOptions="VaryByDataType" ForceExtractValue="None" UniqueName="PhoneIsPrimary">
<HeaderStyle Width="10px" />
</telerik:GridCheckBoxColumn>

protected void RadGrid1_ItemCreated1(object sender, GridItemEventArgs e)

{

if (e.Item.OwnerTableView.Name == "Phone")
    { if (e.Item is GridEditableItem && e.Item.IsInEditMode)
        {
            GridEditableItem item2a = e.Item as GridEditableItem;

GridCheckBoxColumnEditor editor2a = (GridCheckBoxColumnEditor)item2a.EditManager.GetColumnEditor("PhoneIsPrimary");

TableCell cell2a = (TableCell)editor2a.CheckBoxControl.Parent;

CustomValidator validator2a = new CustomValidator();

editor2a.CheckBoxControl.ID =

"ValidatePhoneIsPrimary";

validator2a.ControlToValidate = editor2a.CheckBoxControl.ID;

validator2a.ErrorMessage =

"Inactive or Closed Phone can not be Primary Phone";

validator2a.ServerValidate +=

new ServerValidateEventHandler(CustomValidator1_ServerValidate);

cell2a.Controls.Add(validator2a);

}}}

 

protected void CustomValidator1_ServerValidate(object source, System.Web.UI.WebControls.ServerValidateEventArgs args)

{

if (args.Value == "0"){args.IsValid = true;}}

If I can get this working I will also need to look at and compare args.value to my combobox dropdown selected value - I am not sure how to retrieve that value here in my validation routine.

[plamen]

<hi />


Here's a discussion on the same question that might help you:

http://www.kuam.com/techtalk/customvalidatorclass.htm

http://groups.google.com/group/microsoft.public.dotnet.framework.aspnet/browse_thread/thread/54510428a5c8c008/fcd02a3c9194d40c?q=checkbox+validation+asp.net&rnum=3



Thanks...
<John:Peel />

[Nancy Cara]

Unfortunately none of that information addresses my problem. I think it is a bug with trying to assign a validation event to a 

GridCheckBoxColumnEditor because like I said, it works fine for  GridTextBoxColumnEditor and GridMaskedColumnEditor

[plamen]

hi

There are some server controls for which Custom validator can't be applied. CheckBox control is one such control. Custom validator eases the validation logic written by the developer. When I had a requirement in my project to validate the CheckBox control, I Googled and found the following article:

http://www.velocityreviews.com/forums/t560757-validating-checkboxes-on-the-clientside.html

http://www.syncfusion.com/FAQ/aspnet/WEB_c18c.aspx#q464q

Regards...
<John:Peel />