I'm using DataAnnotations in my viewmodel class:
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In my view I enabled client-side validation.
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So, is this the way it's supposed to work? Shouldn't enabling client-side validation highlight non-validating elements by default, without an needing to create an associated Html.ValidationMessageFor(), if it has a DataAnnotation validation attribute?
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The model has a required attribute for the first name property:but I would like to make this happen automatically if the property has the CustomRequiredAttribute. Is there a way to override the Html.TextBoxFor() and check for the attribute on the given property? Or is there another way to accomplish this behaviour?
found a way to get their validation messages to show as a tooltip instead of inline WITHOUT reinventing all validation framework over again?
View 6 RepliesI have an html input control that is a radio button. This radio button needs to disable required field validators when selected. This is my non working code so far. What have I not done?
<input ID="card1" runat="server" type="radio"/>Card<br />
btnSubmit_Click
{
if (card1.Checked == true)
{
RequiredFieldValidator10.Enabled= false;
}
}
this however doesnt disable the control.
I'm using ASP.NET MVC 3 right now with unobtrusive jquery client validation. By default, ValidationMessageFor generates a span tag with certain classes and attributes set. I would like it to generate a different template instead. For example, I might want a div tag with a certain background image.Is this possible at all, or can I just obtain the plain text error message from there so I can do my own styling?
View 1 RepliesI was working on migrating MVC1 app to MVC2 today and i have come across a problem while changing the ValidationMessage to ValidationMessageFor implementation.
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Is this somewhat a bug in "ValidationMessageFor"
I am looking on Music store example:
In Model we have:
[Required(ErrorMessage = "An Album Title is required")]
public string Title { get; set; }
In a View we have a Razor code:
<div class="editor-field">
@Html.EditorFor(model => model.Title)
@Html.ValidationMessageFor(model => model.Title)
</div>
My questions: Where I can find definition of EditorFor and ValidationMessageFor helpers?
What is the meaning of "=>" in the above command?
Let's say I have a property and a textbox on a view
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I don't understand why each time I use the modelbinding validation like this
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I still get the error displayed, But this time only by Html.ValidateSummary(). the textbox is not highlighted anymore and Html.ValidateMessageFor() doesn't display any message at all.
Is there something I should do the solve this problem? It's important because I have many form that user need to fill out. It's important to highlight the textbox to make it obvious to them.
I would like to use DataAnnotations in my ASP.NET MVC application. I have strongly typed resources class and would like to define in my view models:
[DisplayName(CTRes.UserName)]
string Username;
CTRes is my resource, automatically generated class. Above definition is not allowed. Are there any other solutions?
I'm using "open WYSIWYG" editor which can downloaded from "http://www.openwebware.com/" in my asp.net application. Which can be applied the style by using the following
<script language="javascript1.2">
WYSIWYG.attach('<%=txtMessage.ClientID%>');
</script>
It will add the styles there is no problem on this . My question is, i have a "Required field validator" for "txtMessage" text box(which is a asp.net server control). After attach the style to "txtMessage" the required field validator not functioning well.If i remove or comment the above script tag means it works fine. I don't knw whats the reason behind this.
I'm building an MVC 2 application with a MySQL database behind it. I've imported the model by adding an ADO.NET Entety Datamodel. Now I want to use DataAnnotations to validate the user input. So I have added the line
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However, It just doesn't do anything. The Model.IsValid() returns true no matter how long a string I submit.
What's the best way to validate ICollection
ie. sample class:
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what's the best way to ensure that at least ONE BlogCategory is selected (if on the edit page BlogCategory is a list of checkboxes)
I am using business objects that are accessed via webservices. These objects can be loaded via the webservice and serialized to my mvc app. The mvc app can get a web reference to the objects and they can be utilized in the mvc app. However, the business objects are where the classes are defined, and where the annotations are applied.
The mvc validation seems to have no idea that there are System.ComponentModel.DataAnnotations attributes applied to this business object class.
1) Are DataAnnotations lost when objects are serialized / deserialized?
2) If in mvc I use a view model approach, and have nested objects (which themselves have public properties - decorated with DataAnnotations) can/will the mvc validation system traverse the entire object model, the model being used for my view? (so it can see DataAnnotations attributes of the nested object)?
I am using Entity Framework with partial classes added on so I can use DataAnnotation attributes. Does anyone know how to add a data annotatin which will verify that a field is a whole number (or a DataType of int or long)? I'm surprised there is no [DataType(DataType.Integer)] attribute. I tried to create a custom attribute, but it doesn't work because the value it receives is always null:
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Obviously I'm missing the point, but I don't know enough to know what I'm missing.
I have a DateTime property in my model and I would like to validate it using DataAnnotations.In my view I want to get that DateTime as a number of days (e.g. "3"), instead of a DateTime (e.g. "7/14/2010"). If user enters "3" in the view, then DataAnnotation finds it invalid -and that is the issue.What are my options in this scenario?
View 2 RepliesUsing data annotations for asp.net MVC, I can enforce range, regular expressions, required, stringlength, etc.. However, I have boolean property "SignedDocument" that I want to enforce its set to true? Is this possible in data annotation?Example:
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I want DefaultModelBinder not to perform any validation based on DataAnnotations metadata. I'm already using DataAnnotations with DynamicData for the admin area of my site, and I need a different set of validation rules for the MVC based front-end. I'm decorating my classes with the MetadataType attribute. If I could have different MetadataType classes for the same model but used on different scenarios that would be great.If not I'm fine with just disabling the validation on the DefaultModelBinder, either by setting some property or by creating a specialized version of it.
View 1 RepliesI have a few field in my entity that i wish to be non-editable. Looking in the docs it seems like "EditableAttribute" would do the trick. However this is only 4.0Just wondering if there are other attributes that would have the desire effect. So be clear, i have a field called "DateRegistered" i wish to display this as string not text field using "Html.EditorFor"
View 2 RepliesI have a problem with server-side validation in xVal. I'm using the RequiredAttribute from DataAnnotations.
I would like to change error message from:
The field is required.
to:
Polje je obvezno.
My current solution is this: [Required(ErrorMessage = "Polje je obvezno.")]
But I was wondering if it's possible just to write [Required] and to override error message in one place? (like there is a localization file for client-side validation in xVal)
Is it possible to add a CSS class from DataAnnotations (metadata) when I use Html.EditorForModel() - without a custom template...
Something like this [DataType(CssClass = "DateTime")]
public class TestInput
{
[Required(ErrorMessage = "Name is required.")]
public string Name { get; set; }
[Required, StringLength(500)]
[DataType(DataType.MultilineText)]
public string Description { get; set; }
[Required]
[DataType(CssClass = "DateTime")]
public DateTime Date { get; set; }
[HiddenInput(DisplayValue = false)]
public int Id { get; set; }
}
Here is a link to what I am referring to: [URL]
I got a Category model and it looks like this
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My problem is that when i do a tryupdatemodel it validate the ParentCategory aswell, is it really suppose to do that? How could i avoid this, I tried [Bind(Excluede = "ParentCategory)] in the ActionResult but with no luck. I have looked all over the place with no luck everybody just got the Id problem.
I'm having problems with getting my custom dataannotations to work, I'm trying to add a validation-attribute that validates that the UsergroupName for a Customer (CustomerID) is unique.
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the IsValid should return false if the "count >0". How do I fix this one so it works. GetUsergroups() returns IQueryable<Usergroup>.
I have tried everything to get client-side validation to work in MVC2 RC, but have been completely unsuccessful. Server-side validation works just fine, but client-side never fires. I have grabbed
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from the futures source, since it wasn't included in RC. Unfortunately, that's the only script that people agree is necessary for everything to work. Besides that, nobody seems to know which other specific js scripts are needed. The candidates are (jquery-1.3.2.js, jquery.validate.js, MicrosoftMvcAjax.js, MicrosoftMvcJQueryValidation.js). I've tried every permutation of these and other scripts to no avail.
Html.EnableClientValidation() has been included before BeginForm, and the JSON validation data appears to be correctly written into the source of the page. But, again, client-side validation never fires.
I have this working perfectly
[Required(ErrorMessageResourceName = "ValidationError_Required", ErrorMessageResourceType = typeof(Resources.Resources))]
public string Title { get; set; }
public class LRequiredAttribute : System.ComponentModel.DataAnnotations.RequiredAttribute
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I'm building an application using MVC 3 and Entity Framework 4. I've created my Entity Data Model and generated a database from it. Now I know the validation attributes such as [Required] or [StringLength(5)] can be used on the model properties to provide validation both clientside and serverside.
I would like to know if these attributes can also be generated dynamically instead of having to add them to the model explicitly? I saw that in EF 4.1 RC you can make use of the Fluent API to further configure your model in the OnModelCreating method by using the DbModelBuilder class. As shown here I'm working with a framework however that still uses ObjectContext instead of DbContext so I would like to know if the above solution can be used in combination with ObjectContext?
As a final note, since I've been trying to figure out how to generate and use data annotations it seems using view models would increase the complexity of validation. From what I read here it seems that just passing the models directly to the view would remove the need to add annotations to the models as well as the view models. However that means that you can no longer use strongly typed views when you do joins on the models and pass those to the view directly?