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ValidateFor Extension RSS

5 replies

Last post Mar 26, 2010 06:37 PM by ricka6

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shapper

Contributor

3932 Points

3789 Posts
ValidateFor Extension

Mar 26, 2010 12:27 AM|LINK
Hello,

I would like to change how the ValidateFor renders from:

<span>Error message</span>

To:

<div><span>Error message</span></div>

I think I should, maybe, create a new extension that calls ValidateFor and replaces the html before returning. Something like:
```
// ValidationFor
    public static void ValidationFor<TModel, TProperty>(this HtmlHelper<TModel> htmlHelper, Expression<Func<TModel, TProperty>> expression) {
      

      return Regex.Replace(htmlHelper.ValidateFor(expression), "<span([^>]*)>([^<]*)</span>", "<div$1><span>$2</span></div>");


    } // ValidationFor
```
However the ValidateFor returns nothing instead of a string.

How can I solve this problem?

Thank You,

Miguel
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andrewjboyd

Contributor

4426 Points

864 Posts
Re: ValidateFor Extension

Mar 26, 2010 01:22 AM|LINK
The span has a css class assigned to it, so it actually looks like this: <span class="field-validation-error"

In your css, do this and it will appear as a div tag:
```
<style>
.field-validation-error
{
    display: block;
}
</style>
```
Dont forget to click "Mark as answer" on the post that helped you.

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shapper

Contributor

3932 Points

3789 Posts

Re: ValidateFor Extension

Mar 26, 2010 02:15 AM|LINK

Yes, I know.

But I would like to have <div><span>Error Message</span></div>

That is the only way to get the styling I need.
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shapper

Contributor

3932 Points

3789 Posts

Re: ValidateFor Extension

Mar 26, 2010 02:25 AM|LINK

I have this working with ValidationMessage but not with ValidatorFor ... And this is what I was trying to do.

Does anyone, please, know how to do this?

Thank You,

Miguel
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shapper

Contributor

3932 Points

3789 Posts

Re: ValidateFor Extension

Mar 26, 2010 12:18 PM|LINK

Please, anyone?

I have been looking at ValidationExtensions code in MVC source and I can't figure out a way to create a ValidateFor extension that renders diferently.

My problem is that calling ValidateFor renders nothing ...

Anyone? Any idea?

Thank You,

Miguel
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ricka6

All-Star

15088 Points

2277 Posts

Microsoft
Moderator

Re: ValidateFor Extension

Mar 26, 2010 06:37 PM|LINK

see my blog http://blogs.msdn.com/rickandy/archive/2009/08/18/dry-ing-out-the-mvc-2-templated-helpers.aspx where I do this. ValidationFor is now supported - so don't implement that.

Rick -ASP.Net UE @RickAndMSFT Rick on MVC, WebAPI and Azure
- Marked as answer by ricka6 on Mar 26, 2010 06:37 PM