<com:TContent ID="Content">

<com:TCheckBoxList ID="list1" AutoPostBack="true" ValidationGroup="group1" >
	<com:TListItem Text="Item 1" />
	<com:TListItem Text="Item 2" />
	<com:TListItem Text="Item 3" />
</com:TCheckBoxList>

<com:TCustomValidator
	ID="validator1"
	ControlToValidate="list1"
	OnServerValidate="do_validate_1"
	ValidationGroup="group1"
	ErrorMessage="group1 error" />

<com:TRadioButtonList ID="list2" AutoPostBack="true" ValidationGroup="group2" >
	<com:TListItem Text="Item 1" />
	<com:TListItem Text="Item 2" />
	<com:TListItem Text="Item 3" />
</com:TRadioButtonList>

<com:TCustomValidator
	ID="validator2"
	ControlToValidate="list2"
	OnServerValidate="do_validate_2"
	ValidationGroup="group2"
	ErrorMessage="group2 error" />

</com:TContent>