ValidationGroup "group1", "group2" and "" (empty) - how to validate all?


i have 2 validationgroup (group1, group2 - 3 groups with the empty one) and 3 buttons. when i click the button at the end i wanted to validate group1, group2 and the empty one on client side and server side, but it does only validate the requiredfieldvalidator with the empty validationgroup property.

1) how can i validate all on client AND server side?

2) how can i validate group1 and group2 (without the empty one) on client and server?

Here is my code snippet: 

			<!-- group1 -->
			<asp:TextBox runat="server" ID="txtTest"></asp:TextBox>
			<asp:RequiredFieldValidator runat="server" ID="reqTest" ControlToValidate="txtTest"
			<asp:LinkButton runat="server" ID="lnk1" ValidationGroup="group1" Text="Validate group1"></asp:LinkButton>
			<!-- group2 -->
			<asp:TextBox runat="server" ID="txtTest2"></asp:TextBox>
			<asp:RequiredFieldValidator runat="server" ID="reqTest2" ControlToValidate="txtTest2"
			<asp:LinkButton runat="server" ID="lnk2" ValidationGroup="group2" Text="Validate group2"></asp:LinkButton>
			<!-- no group -->
			<asp:TextBox runat="server" ID="txtTest3"></asp:TextBox>
			<asp:RequiredFieldValidator runat="server" ID="reqTest3" ControlToValidate="txtTest3">*</asp:RequiredFieldValidator>
			<br />
			<br />
			<!-- this one should validate group1, group2 and the empty "" ValidationGroup (no group)
		but it does only validate reqTest3 with empty "" ValidationGroup -->
			<asp:LinkButton runat="server" ID="lnk3" ValidationGroup="" Text="Validate All?!"></asp:LinkButton>


thanks, tob 

2/13/2008 2:24:44 PM 93655 articles. 6 followers. Follow

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There is no built-in way to do that. The ValidationGroup property on buttons and validators only permits a single validation group name. You'd have to create a hack to do this on the client-side. Doing it on the server side isn't so hard.

1. Set the button's CausesValidation property to false

2. In the button's postback event handler, call the Validate() method on each validator you want to evaluate

3. Then test all of the validator's IsValid property for true before saving/using the data on the page.

I have created a free tutorial - both video and PDF - that covers this issue.

Also my replacement to the ASP.NET validators, Peter's Professional Validation, supports this by allowing the button to identify a list of validation groups or all (using * as the group name).

--- Peter Blum
Creator of Peter's Data Entry Suite (formerly Professional Validation And More and Peter's Date Package) and Peter's Polling Package
2/13/2008 4:09:09 PM

 hi peter,

thanks! i really would like to dig in validation some more, so can you tell me how to get it working on the client side without your validation controls (cool stuff!)!?? 

can i call Page_ClientValidation("group1") and Page_ClientValidation("group2") to get the boolean value from Page_IsValid (i think there is such a variable name)?

thanks, tob 

2/15/2008 8:29:38 AM

I have not tried setting up the logic calling Page_ClientValidate("group1") && Page_ClientValidate("group2"). It might work. You will have to explore it. I know that there will be side effects if you have a ValidationSummary control because it is setup for a single validation group.

--- Peter Blum
Creator of Peter's Data Entry Suite (formerly Professional Validation And More and Peter's Date Package) and Peter's Polling Package
2/15/2008 7:33:49 PM

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