MVC :: Validation Using RegularExpressionAttribute?

Jun 24, 2009

I have the following code

[RegularExpression(EmailValidator.Pattern, ErrorMessageResourceName = "Organisation_Email_Invalid", ErrorMessageResourceType = typeof(MyResources))]
public string Email { get; set; }

But the custom error message in the resource file is being ignored. and I get the following message.Email must match the expression ^[a-zA-Z][w.-]*[a-zA-Z0-9]@[a-zA-Z0-9][w.-]*[a-zA-Z0-9].[a-zA-Z][a-zA-Z.]*[a-zA-Z]$.If I set the ErrorMessage in the attribute it works fine but it then cannot use the ResourceFile.The RequiredAttribute Validators are working fine. Is this a known issue or I'm I missing something.



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MVC :: Include DisplayName With A RegularExpressionAttribute?

Mar 25, 2011

I got custom attributes to work on the server and client, now I want to DRY things up just a little more. How do you override the pattern for RegularExpressionAttribute to include the DisplayName?

Right now I am like this:

[Code]....

Which results in:

[Code]....

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Serious Error Wrt RegularExpressionAttribute On MVC2 RC1?

Jan 25, 2010

If I decorate my model with a regular expression + localized string resource, and the ErrorMessageResourceName does not resolve to something on the object, the following things happen:

The regular expression is ignored altogether from a validation perspectiveNo error messages are raised in the MVC application.I would love it if the framework floated an exception in this instance because exclusion of this rule could have far reaching implications.The following is a modification to the ChangePasswordModel.NewPassword property in the stock MVC 2 RC1 project that exhibits the behavior. Note that while the MyResources does exist in my project, the EMResourceName does not exist on it.

[Code]....

[RegularExpression(@"^(?=.*d)(?=.*[a-z])(?=.*[A-Z]).{4,8}$", ErrorMessageResourceType = typeof(MyResources), ErrorMessageResourceName = "InvalidPasswordMessage2")]

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MVC :: RegularExpressionAttribute Validator Always Returns False?

Nov 17, 2010

I'm using a model which receives some input from a form and has some validation logic attached via attributes. In one case I'm validating personal names, which should include only letters, apostrophes, spaces and dashes, and be no more than 50 chars long. So I have a model property like:

[Code]....

Everything works fine BUT the RegularExpression attribute: if I add it, I always get a validation error, even when what I type in my form is a valid name (e.g. "Foo"). No matter how I modify the regular expression or what I type, I always get an invalid name error.

(For some reason, I cannot see the regex posted correctly here: it is just ^ followed by the Unicode Letter class and []+ including a Unicode letter class, apostrophe, whitespace and dash, ended by dollar: i.e. start of string - any letter - any of the following: letter, apostrophe, whitespace, dash, 1 or more times; end of string).

What I'm doing wrong here?

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Forms Data Controls :: Javascript Validation For Assigning Validation Group To Validation Summary On Datalist Item Click?

Dec 25, 2010

I am using one datalist control for uploading multiple images.I hv used one Asp:FileUplaod Control and one button in one itemtemplate.I am using reqired field validator and regular expression validator for file upload cntrl I am assigning validation group for both of them on ItemDataBound event of my datalist so that each upload cntrl hv same validaton group as required field and regular expression validator.Now what i want to do is - i want to show my error message in validation summary which is right at the top of the page.I want one know how to write javascript that will assign validation group of my control in datalist on which i click ?

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MVC :: Validation Parameter Names In Unobtrusive Client Validation Rules Must Start With A Lowerc?

Oct 7, 2010

I am migrating my application to MVC3 and getting this error message Validation parameter names in unobtrusive client validation rules must start with a lowercase letter and consist of only lowercase letters or digits.How can I ovoid it without going and modifying all my ViewModels

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How To Extend Server-side Validation Controls To Raise An Event If Validation Fails

Feb 23, 2010

I am using ASP.NET's server-side validation. In the page_load event I'm calling Page.Validate(), and if Page.IsValid is not true I'm then polling the controls to figure out which ones are not valid, and then determining what actions to take.It would be much easier if each control would raise an event as validation fails, allowing me to take action for that particular control. I'm very much a naive programmer when it comes to validation, but is there a way to extend these controls so that a validation error raises an event?

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Forms Data Controls :: GridView With Validation / Apply Validation During Editing?

Apr 29, 2006

During editing imode in gridview control, when uncorrect format was entered and updated , an exception is thrown. can i apply validation during editing?

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Web Forms :: Dropdown Validation Not Working When Add Validation Control In Code Behind

Mar 19, 2010

I am creating dropdown controls in code behind. in some conditions I need to add validation control to dropdowlist. But Validation not firing when I submit button.

If mQuestion.RequiredToAnswer = True Then
Dim mValidator As New RequiredFieldValidator
mValidator.ControlToValidate = mDDL.ID
mValidator.InitialValue = mDDL.Items(0).Text
mValidator.Display = ValidatorDisplay.Dynamic
mValidator.ErrorMessage = "* Required!"
mTableCell.Controls.Add(mValidator)
End If

I have other dropdown controls on aspx page with validation comtrols. Those are working fine. Only when I ddl and validations from code not working?

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MVC :: Giving Custom Validation Message (JQuery & XVal Validation)?

Sep 10, 2009

How can I give my own custom validation message in JQuery and XVal Validation.

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MVC :: Register Client-side Validation For Custom Validation Attribute?

May 19, 2010

I am trying to create a custom password validation attribute which has these requirements

1. cannot be empty.

2. doesn't contain space or other special chracters, which I'll define later.

3. length is between 6 - 12

[Code]....

it works fine on the server-side but I'd like to make this work on the client side as well, so I created a PasswordAttributeAdapter class

[Code]....

and in global.asax I added

[Code]....

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Jquery Validation Not Working Throwing Error $.validation Is Undefinedj?

Nov 30, 2010

jQuery validation is working fine on my machine, when i pushed it to test server it won't it's throwing some errors which is kind of surprising.These are the errors I am getting: $.validator is null or not an object...I've never gotten this error before and it throwing an error when I declared a variable like var isValid.I don't know what to do. I am doing the custom validation methods not in the document.ready(). Does this cause this error? I wonder because all jquery validations are passing and hitting the server side validations.

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Web Forms :: How To Disable The Code Behind Validation When Javascript Validation Is Present

Jul 25, 2010

How can I disable the code behind validation when javascript validation is present? Then if there is no javascript enabled then the code behind validation will do its thing. What I notice is that it's reading the code behind valdiation not the javascript.

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Web Forms :: Cascading Dropdown Validation - Required Validation When The Second Ddl Is Visible Only

Dec 4, 2010

i have cascading dropdown ..the second ddl would visible or hide dependg on first ddl value.

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Javascript - Perform A Validation To Check Whether A TextBox Value Is Empty On Dropown List Selected Index Change Using Validation Controls?

Jan 19, 2011

I need to perform a validation to check whether a TextBox value is empty on Dropown list selected Index change using validation controls in asp.net

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Web Forms :: Validation Summary Change Focus After Validation?

Dec 22, 2009

i have my validation summary shown at the top of the page. i want to set the focus to the summary everytime a error is dispalyed. how can i do so

this is what i have done and has not worked.

[Code]....

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MVC :: Validation Fails And Returns Whole Form With Validation Message?

Mar 18, 2011

Can anyone tell me how to re-display a form when validation fails, i'm having a problem in that when i submit an empty form, the whole ascx file is returned with textbox and button etc.

[Code]....

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MVC :: Custom Validation Attribute Is Not Called By Validation Mechanism?

Aug 28, 2010

Custom Validation Attribute is not called by validation mechanism?

[Code]....

ViewModel

[Code]....

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Validation: Gathering Information From Client-side Validation?

Jan 18, 2011

I'd like to implement ajax message box that will gather information from validators on a page when client-side validation fires. Like: I have left some text fields blank then press submit button and appropriate RequiredFieldValidators show messages. I would like my message box shows those messages too. I am looking for appropriate way to hook on validators JS event or something.

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Is It Possible To Use Validation Controls When I Need To Modify HTML When Validation Fails

Mar 16, 2011

Let's say that I have the following HTML for a text box on an ASP.NET page:

<div class="myClass">
<asp:TextBox ID="txtMyTextBox" runat="server"></asp:TextBox>
</div>

It is easy enough to add a required field validator to this page like this.

<asp:RequiredFieldValidator ID="valMyTextBox" runat="server" ControlToValidate="txtMyTextBox" ErrorMessage="My Text Box is required."></asp:RequiredFieldValidator>

But I need to modify the HTML slightly if this text box fails validation. I need to add a CSS class to the DIV. So if the user leaves this field blank I need the HTML to look like this:

<div class="myClass error">
<asp:TextBox ID="txtMyTextBox" runat="server"></asp:TextBox>
</div>

Is this possible? I can't figure out if there is a way to write code behind that only fires if this particular validator control fails validation or something. I know I can write code that runs when the entire page is not valid. But I just want this code to run when this validator returns invalid. Hope this makes sense.

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Nov 1, 2010

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give me the syntax for the validation.

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MVC :: Create Client Validation Automatically When Use Own Validation Class?

Mar 2, 2011

I write a class inherited from ValidationAttribute such as

[//...]
public class MyValidation:ValidationAttribute
{
//...
}

but when I use MyValidation,and EnableClientValidation,I found that it would not create client script automatically .

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Web Forms :: Can The Validation Summary Be Used Without Validation Controls

Dec 1, 2009

I have an application where the validation is done via code. Can validation errors be displayed in the Validation Summary even though Validation Controls are not used?

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How To Localize The Validation Messages In JQuery's Validation

Oct 13, 2010

Is there a standard practice for localizing the JQuery Validation messages?

I've been able to hack something together by declaring my own ClassRules and referencing them instead of the default ones.

My code.

[code]...

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How To Go For Custom Validation Control And When To Do Validation In Javascript

Mar 12, 2010

When to go for custom validation control and when to do validation in javascript? What are pros and cons of each of them?

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MVC :: How To Get Validation Summary For Client Side Validation

Jan 21, 2010

I use the oob client side validation from mvc 2 RC. The input field validation errors are working fine. But the validation summary is missing. How to get the validation summary on client side validation?

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AJAX :: Validation And Client Side Validation?

Sep 8, 2010

When i use Validator callout extender and as well both client side java script validation , both are not working at a same time.I use java script code for dynamic checkboxes to be atleast one checkbox must be checked.When i use onclient click only javascript validations are fired, when use onclick function javascript code is not working.

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Jquery, C#, Server Validation And Validation Blocks?

Feb 1, 2011

Im using the ms validation blocks to validate user input posted using jquery (ajax). Can someone give me an example of the best way to inform the user that the data does not validate.

Do i simply throw an exception and use the error event of the $.ajax function to inform the user of the issues or is there a better way of handling this?

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MVC :: .net Mvc 2.0 Preview 2 Validation - DataAnnotations Validation Not Working?

Nov 1, 2009

I had a mvc 1.0 site. I converted that to mvc 2.0 preview. I couldn't get DataAnnotations validation to work. My model has one single property marked as required. ModelState.IsValid is always true. I tested this feature working on a brand new mvc asp.net 2.0 site, but not in converted site! Can I get some pointers on trouble shooting this issue? Where should I start?

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MVC :: Validation Of XML Content - Error "disabling Request Validation The Only Way To Get The Post To Work"

Sep 30, 2010

Is there a way to disable request validation on an action without having to add the line <httpRuntime requestValidationMode="2.0"/> to Web.config? I'm currently posting XML to a controller action and get the "A potentially dangerous Request.Form value..." error. Is disabling request validation the only way to get the post to work, or is there some way I can intercept and encode the value that contains XML between the view and the controller action?

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