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New Post: Manually trigger foolproof validation

thelameduck — Fri, 03 May 2013 16:59:27 GMT

I'm using Foolproof Validation so I can use [RequiredIf] attributes on my view model. The problem is that I'd like to trigger validation within my code using the same logic outside a controller.

I've tried creating my own validation context and using Validatior.TryValidateObject; however, it fails with Foolproof's custom RequiredIf validator. Is there a way to take my model and validate it other than passing it to a controller?

Am I using the wrong approach?

Here is my code:

var draftModel = _draftHelper.LoadDraft(draftId);

var validationResults = new List<ValidationResult>();

var vc = new ValidationContext(draftModel, null, null);

var isValidDraft = Validator.TryValidateObject(draftModel, vc, 
                                               validationResults, true);

And the error I get is on the TryValidateObject line

System.NotImplementedException: The method or operation is not implemented.

I've also posted on StackOverflow, but I'll update both posts with the answer when I find it.

New Post: Why do we need to implement IsValid in ModelAwareValidationAttribute ?

DrKawashima — Tue, 30 Apr 2013 12:20:43 GMT

Hi,
I just downloaded the source code, imported the files into my own project and tried to implement my frist validator (a RequiredIsTrue)
When I executed the project I got an exception. The IsValid method in ModelAwareValidationAttribute.cs had fired a NotImplementedException.

Was quite surprised that this method fired.
Doesn't the specific validators, like RequiredIfTrue have their own validators??

Is there something I'm missing or is it supposed to work like this?
In case of the latter, I'd like some advice on how to implement a simple solution where I can just leave the validation up to the specific data annotation validators themselves and don't have to write any custom code in the ModelAwareValidationAttribute.

Note that If I do implement the isValid method (for instance set it to always return true), all aspects of the validation do work as expected. It's just that I don't WANT to have to perform the validation in that method...

New Post: Minor suggestion to remove cultural bias from project home page examples

sgryphon — Tue, 30 Apr 2013 03:00:59 GMT

The fourth example on the project home page (for Required Validation) uses "FirstName" and "LastName", which are culturally biased terms.

This is just a minor suggestion to change them to be GivenName and Surname (or GivenName and FamilyName), which are more culturally neutral.

For an in depth discussion of the issue see: http://www.w3.org/International/questions/qa-personal-names

New Post: Custom Validation no client side validation

Lukehenners — Mon, 22 Apr 2013 12:53:13 GMT

With MVC4 there is an interface which has to be implemented which isn't implemented within foolproof, I have created my own subset of annotations based upon the very good foolproof code which does implement the interface and this works perfectly with mvcfoolprooj.unobtrusive.js. The interface is IClientValidatable.

public abstract class ModelAwareAttribute : ValidationAttribute, IClientValidatable
{
  //...
  public IEnumerable<ModelClientValidationRule> GetClientValidationRules(ModelMetadata metadata, ControllerContext context)
  {
    yield return new ModelClientValidationRule()
    {
      ErrorMessage = ErrorMessage,
      ValidationType = "is"
    };
  }
}

New Post: Custom Validation no client side validation

jaina — Wed, 03 Apr 2013 15:08:25 GMT

Hello all,

I tried to implement the example in

http://www.nickriggs.com/posts/build-model-aware-custom-validation-attributes-in-asp-net-mvc-2/

But the custom client side validation is not happening.

I am using MVC 4.0.

I have used @Scripts.Render("~/Scripts/mvcfoolproof.unobtrusive.min.js") in my View.

Please advise on what m I missing.

Thanks in advance.

New Post: Entity Framework Not Implemented Exception Solution

manuel0081 — Wed, 20 Feb 2013 14:29:57 GMT

A sample?

New Post: Entity Framework Not Implemented Exception Solution

shuzz — Tue, 04 Dec 2012 11:26:21 GMT

If you are getting the Not Implemented Exception on your EF Models, this is what I did to *fix* it:

My solution has a domain project (POCO) with the repositories in there too and a website project.

I was trying to utilize the same POCO models as the models website, adding the [RequiredIfEmpty("field")] anotations right there. bad idea to begin with, I know.

What I ended up doing was creating ViewModels on the website with all the fields as the POCO plus the validation Annotations, i also added AutoMapper to map the POCO and the ViewModels easily.

By doing this i was able to fully utilize the

MVC Foolproof Validation. not only that but my solution is a lot more decoupled and the domain is a lot lighter.

while this doesn't really solves the Not Implemented Exception, it gives you a work around it.

hope this helps.

New Post: RequiredIfTrue client side validation

nickriggs — Tue, 27 Nov 2012 14:34:33 GMT

Hey guys. I made a quick example project using Robelind's original example. The only thing I changed was adding a hidden input for the bool property like I mentioned before. Clientside seems validation works fine in MVC 4. Hope this helps:

https://dl.dropbox.com/u/73019/Examples/QuickTest.zip

New Post: RequiredIfTrue client side validation

robelind — Tue, 27 Nov 2012 13:22:27 GMT

Sorry to nag you, but will there be an update for MVC 4?

New Post: TypeError: dependentPropertyElement[0] is undefined

pirovorster — Thu, 22 Nov 2012 16:09:02 GMT

Hi Nick
Thanx for the help. Works in my test app. Will test it in my main aplication and let you know as well.

Regards
Piro

On Nov 22, 2012 4:31 PM, "nickriggs" <notifications@codeplex.com> wrote:

From: nickriggs
In order to validate against the second property client-side, it has to be represented in the HTML. For example:
@Html.HiddenFor(m => m.TestValueTwo)
Also, in this example, the model would be null since you are not passing it to the view from the controller. You would need to change your action result to following so the value of "true" actually gets applied to the rendered hidden input box.
return View(new TestFoolproofModel());
That should work for you. Let me know.
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New Post: TypeError: dependentPropertyElement[0] is undefined

nickriggs — Thu, 22 Nov 2012 14:31:10 GMT

In order to validate against the second property client-side, it has to be represented in the HTML. For example:

@Html.HiddenFor(m => m.TestValueTwo)

Also, in this example, the model would be null since you are not passing it to the view from the controller. You would need to change your action result to following so the value of "true" actually gets applied to the rendered hidden input box.

return View(new TestFoolproofModel());

That should work for you. Let me know.

New Post: TypeError: dependentPropertyElement[0] is undefined

nickriggs — Wed, 21 Nov 2012 21:55:42 GMT

Send it to nicholasriggs@gmail.com

On Wed, Nov 21, 2012 at 11:17 AM, pirovorster <notifications@codeplex.com> wrote:

From: pirovorster

Hi Nick

I have a test application. Where can I send it?

In the mean time here is more info

My View

@model TestMvc.Models.TestFoolproofModel

@{
    Layout = null;
}

<!DOCTYPE html>
<html>
<head>
    <meta name="viewport" content="width=device-width" />
    <title>Index</title>
    @Scripts.Render("~/bundles/foolproof")
</head>
<body>
    <div>
        <fieldset>
            <legend>Credentials</legend>
            <ol>
                <li>
                    @Html.LabelFor(m => m.TestValueOne)
                    @Html.TextBoxFor(m => m.TestValueOne)
                </li>

            </ol>
        </fieldset>
        <input type="submit" value="Register" />
    </div>
</body>
</html>

My Bundel
 public static void RegisterBundles(BundleCollection bundles)
 {
      bundles.Add(new ScriptBundle("~/bundles/foolproof").Include(

      "~/Scripts/jquery-1.8.2.js",
               
      "~/Scripts/jquery.unobtrusive-ajax.js",
               
      "~/Scripts/jquery.validate.js",
               
      "~/Scripts/jquery.validate.unobtrusive.js",
               
      "~/Scripts/mvcfoolproof.unobtrusive.js"));

}


My Model public class TestFoolproofModel
 {
       [RequiredIfTrue("TestValueTwo")]
       public string TestValueOne { get; set; }
       public bool TestValueTwo { get { return true; } }
 }



Whenever I click on the Register button in my view I get

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--
Nick Riggs

twitter | blog

New Post: TypeError: dependentPropertyElement[0] is undefined

pirovorster — Wed, 21 Nov 2012 17:17:46 GMT

Hi Nick

I have a test application. Where can I send it?

In the mean time here is more info

My View

@model TestMvc.Models.TestFoolproofModel

@{
    Layout = null;
}

<!DOCTYPE html>
<html>
<head>
    <meta name="viewport" content="width=device-width" />
    <title>Index</title>
    @Scripts.Render("~/bundles/foolproof")
</head>
<body>
    <div>
        <fieldset>
            <legend>Credentials</legend>
            <ol>
                <li>
                    @Html.LabelFor(m => m.TestValueOne)
                    @Html.TextBoxFor(m => m.TestValueOne)
                </li>

            </ol>
        </fieldset>
        <input type="submit" value="Register" />
    </div>
</body>
</html>

My Bundel
 public static void RegisterBundles(BundleCollection bundles)
 {
      bundles.Add(new ScriptBundle("~/bundles/foolproof").Include(

      "~/Scripts/jquery-1.8.2.js",
               
      "~/Scripts/jquery.unobtrusive-ajax.js",
               
      "~/Scripts/jquery.validate.js",
               
      "~/Scripts/jquery.validate.unobtrusive.js",
               
      "~/Scripts/mvcfoolproof.unobtrusive.js"));

}


My Model public class TestFoolproofModel
 {
       [RequiredIfTrue("TestValueTwo")]
       public string TestValueOne { get; set; }
       public bool TestValueTwo { get { return true; } }
 }



Whenever I click on the Register button in my view I get 


dependentValue = dependentPropertyElement[0].value;
in  mvcfoolproof.unobtrusive.js -line 100

 and then a postback

New Post: TypeError: dependentPropertyElement[0] is undefined

nickriggs — Wed, 21 Nov 2012 13:54:02 GMT

I might be able to help with more information. You might need to throw together a small project with a sample model that duplicates the issue to post.

New Post: TypeError: dependentPropertyElement[0] is undefined

pirovorster — Wed, 21 Nov 2012 08:13:47 GMT

Any help?

New Post: TypeError: dependentPropertyElement[0] is undefined

pirovorster — Fri, 16 Nov 2012 09:10:07 GMT

I get this error when I submit my page

TypeError: dependentPropertyElement[0] is undefined

dependentValue = dependentPropertyElement[0].value;

mvcfoolproof.unobtrusive.js -line 100

My Current scripts are

http://localhost:3248/Scripts/jquery-1.8.2.js

http://localhost:3248/Scripts/jquery.unobtrusive-ajax.js

http://localhost:3248/Scripts/jquery.validate.js

http://localhost:3248/Scripts/jquery.validate.unobtrusive.js

http://localhost:3248/Scripts/mvcfoolproof.unobtrusive.js

I have read http://foolproof.codeplex.com/discussions/227722, but the build seems to be much earlier so I assume it is not that.

What am I missing?

New Post: I need a combination of requiredIf and greaterthanorequalto.

nickriggs — Tue, 23 Oct 2012 18:38:58 GMT

I think a single custom validator could work for you if you created a model class to represent a row. So a row class that looking something like:

class SomethingRowModel{
 
    prop Radio;
    prop TexBox;
    prop Count;
    ect;

}

Then in your main model, Instead of have a bunch of duplicated properties for your six rows, just have six properties for each row of your new SothingRowModel class.

You can then apply the validator to the SothingRowModel once, and it should work for all your rendered rows.

New Post: I need a combination of requiredIf and greaterthanorequalto.

battlfrog — Tue, 23 Oct 2012 18:07:26 GMT

Oh I see, so I need to specify the fields, such as model.Firstname instead of somehow passing it in later. I had hoped to pass it in because I had planned to use this custom attribute on 6 different properties.

Basically I have 6 sets made up of (radio buttons, textboxes, button, counter, table). The user clicks Yes radio, fills in hte textboxes, and clicks the button which increments the counter and moves the textbox values to the table. I think the simplest thing is to put a custom attribute on each counter (which each have different names) that says (if "<enter radio button name> is true, then <this> needs to be > 0).

So is this example I have been using, capable of getting me here, or will I need to write 6 custom attributes, naming specific properties in the model?

Thank you again for all your help on this.

Simon.

On Tue, Oct 23, 2012 at 10:36 AM, nickriggs <notifications@codeplex.com> wrote:

From: nickriggs
Yes, you should be using ModelAware because it will expose the entire model to you instead of just the property value of the contingent property.

You can't change the signature of the IsValid, it has to implement it as it exists in the abstract base class. It should look like this in your class:
public override bool IsValid(object value, object container)
The container variable, will be your model, just cast it to your model's type, like in the example I provided:
var model = (YourModelTypeHere)container;
Once you have typed model, you will have access to the two properties you need to property evaluate if it's valid.
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New Post: I need a combination of requiredIf and greaterthanorequalto.

nickriggs — Tue, 23 Oct 2012 17:36:52 GMT

Yes, you should be using ModelAware because it will expose the entire model to you instead of just the property value of the contingent property.

You can't change the signature of the IsValid, it has to implement it as it exists in the abstract base class. It should look like this in your class:

public override bool IsValid(object value, object container)

The container variable, will be your model, just cast it to your model's type, like in the example I provided:

var model = (YourModelTypeHere)container;

Once you have typed model, you will have access to the two properties you need to property evaluate if it's valid.

New Post: I need a combination of requiredIf and greaterthanorequalto.

battlfrog — Tue, 23 Oct 2012 16:58:36 GMT

Hello Again,

Are you starting to regret answering my initial email yet? ;-)

I have put this together based off your post:

public class RequiredIfTrueAndGreaterThanAttribute : ModelAwareValidationAttribute

{

// Register the new attribute with the Foolproof library

static RequiredIfTrueAndGreaterThanAttribute()

{

}

public override bool IsValid(bool radioValue, int counterValue)

{

if (radioValue == true)

{

if (counterValue == 0)

{

return false;

}

else if (counterValue > 0)

{

return true;

}

return true;

}

I get 2 errors:

1 'EligibityForm.RequiredIfTrueAndGreaterThanAttribute' does not implement inherited abstract member 'Foolproof.ModelAwareValidationAttribute.IsValid(object, object)'

and

2 'EligibityForm.RequiredIfTrueAndGreaterThanAttribute.IsValid(bool, int)': no suitable method found to override.

Any advice?

Simon.

On Tue, Oct 23, 2012 at 8:06 AM, Simon Rodgers <teahou@gmail.com> wrote:

Nick,

I have been reading over the source code at Foolproof.Codeplex and I am wondering if I should be inheriting from ContingentValidationAttribute, instead of ModelAwareValidationAttribute. I am wondering because both the Is and the RequiredIf classes inherit from ContingentValidationAttribute and those are the attributes I am trying to combine.

What say you?

Simon

On Tue, Oct 23, 2012 at 7:16 AM, Simon Rodgers <teahou@gmail.com> wrote:

Great, thank you so much Nick, I have been banging my head against this for a couple days now. Have a great day!

Simon.

On Tue, Oct 23, 2012 at 7:15 AM, nickriggs <notifications@codeplex.com> wrote:

From: nickriggs

You have to create the client side scripts if you want client side validation:

http://www.nickriggs.com/posts/client-side-model-aware-validation/

That article was pre-unobtrusive. So you will also have to do some rigging for that. Refer to the $Unob.adapters.add function calls near the bottom of this file for examples:

http://foolproof.codeplex.com/SourceControl/changeset/view/94877#1749774

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foolproof Discussions Rss Feed

New Post: Manually trigger foolproof validation

New Post: Why do we need to implement IsValid in ModelAwareValidationAttribute ?

New Post: Minor suggestion to remove cultural bias from project home page examples

New Post: Custom Validation no client side validation

New Post: Custom Validation no client side validation

New Post: Entity Framework Not Implemented Exception *Solution*

New Post: Entity Framework Not Implemented Exception *Solution*

New Post: RequiredIfTrue client side validation

New Post: RequiredIfTrue client side validation

New Post: TypeError: dependentPropertyElement[0] is undefined

New Post: TypeError: dependentPropertyElement[0] is undefined

New Post: TypeError: dependentPropertyElement[0] is undefined

New Post: TypeError: dependentPropertyElement[0] is undefined

New Post: TypeError: dependentPropertyElement[0] is undefined

New Post: TypeError: dependentPropertyElement[0] is undefined

New Post: TypeError: dependentPropertyElement[0] is undefined

New Post: I need a combination of requiredIf and greaterthanorequalto.

New Post: I need a combination of requiredIf and greaterthanorequalto.

New Post: I need a combination of requiredIf and greaterthanorequalto.

New Post: I need a combination of requiredIf and greaterthanorequalto.

New Post: Entity Framework Not Implemented Exception Solution

New Post: Entity Framework Not Implemented Exception Solution