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POASP.NET MVC 1.0 Validation with xVal
 

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  1. POASP.NET MVC 1.0 Validation with xVal
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    <p>I'm actually fine with using another validation method. It seems there aren't many options prebuilt for doing validation with ASP.NET MVC 1.0. The main thing I see people talking about is xVal. However, there is literally no documentation for it. In fact, the blog of the founder seems to only have like two posts on it. </p> <p>Anyway, it's the only thing I've seen that can also provide client validation. My issue is that I cannot use attribute based stuff because I'm generating my models using LLBLGen and I don't want to modify the code.</p> <p>Everything I've read about xVal talks about the possibility of implementing an IRulesProvider but no real info of how to go about doing that and using it. I've found some code that implements it but using attributes which I can't really do.</p> <p>So can anyone provide some guidance on how to use xVal if I'm not hand coding my model classes or going to use DataAnnotations or something similar (I'm open to an alternative to xVal but I haven't seen anything and I need to stick with ASP.NET MVC 1.0 and I need client side validation support)?</p> <p><strong>Edit:</strong> I don't think a partial class approach will work for me because I will be generating the code a lot and they will be in different assemblies.</p>
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    1. COI'm not understanding why partial classes will not work for you. That's a pretty standard approach in C# to adding custom behavior to template generated classes. It shouldn't matter if they are generated "a lot", as it won't change your custom code. And what do you mean they will be in different assemblies? It is a restriction of partial classes they can not be in different assembles. See the documentation... http://msdn.microsoft.com/en-us/library/wa80x488%28VS.80%29.aspx
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    2. CO@jacerhea, the reason partial classes won't work for me is that the generated code is in a different assembly. Isn't it correct that partial classes are required to reside in the same assembly?
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    3. COI misunderstood. I thought you were saying they were in fact going to be in different assemblies, and I was saying that's not possible. Yes, partial classes need to be part of the same assembly. That seems like a strange requirement though, having different parts of the same class in different modules of code. Have you considered that maybe these other requirements are forcing you to make bad architecture decisions? Anyways, if you want to implement a custom IRulesProvider I would suggest download the xVal source, where the IRulesProvider code for both Castle and NHibernate can be looked at.
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