DataAnnotation Attributes Not Working In MVC2?
Jul 9, 2010
I am having trouble with the with mvc2.
I am using the Entity Framework as my ORM. I have used the POCO Entity Generator to create POCO objects. I moved the generated objects to a separate project. I followed steps outlined here(Tutorial). This is my project structure
Sports.Data - Entity Frmework and Data Access
Sports.Entities - The poco objects generated and buddy classes
Sports.Web - The web application
In the Sports.Entities project I have created buddy classes for the generated pocos.
The problem I am having is that the attributes are being ignored by the mvc. The validation is not working and the correct label text is not being displayed. Instead of 'Shirt Size', 'ShirtSize' is displayed.
Here is the code.
<div>
<%: Html.LabelFor(m => m.Player.ShirtSize)%>
</div>
<div class="editor-field">
[Code]....
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Apr 21, 2010
, what wrong with my code below, look:
In my model,[Code]....
and in my aspx, [Code]....
But does't work, why?
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Oct 7, 2010
I have found hints that MVC 2 recognises the 'buddy class' type of property metadata, where data annotation attributes are applied to a 'buddy' metadata class, and the MetadataType on the actual entity class points to that buddy class, as below. However, as below, it seems the only attribute that makes any difference to the rendered UI is DisplayName. Why are the other attributes like DataType, Required, and ReadOnly not working? I.e. why can I enter text in a read only field? Why do I not get an error when a required field is empty? Why does the DataType attribute have no apparent effect? Why does EditorForModel not include validation messages?
[MetadataType(typeof(CustomerMetadata))]
public partial class Customer
{
public class CustomerMetadata
{
[ScaffoldColumn(false)]
public object CustomerId { get; set; }
[DisplayName("CustomerNo.")]
[ReadOnly(true)]
[Required(AllowEmptyStrings = false, ErrorMessage = "Customer No. is required.")]
public object CustomerNo { get; set; }
}
}
I find behaviour the same whether I use an explicit LabelFor and TextBoxFor for each model property, or a single EditorForModel for the whole model.
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Nov 19, 2010
I have a gridview, and I want to change the backcolor of any row that has the column checkedin = false.
I have this working fine, except that it will not change the backcolor of the first row and only the first row. Matter a fact if I sort the columns by clicking on the header rows the order changes and the backcolor highlights the row that was the first row before it was sorted so long as it is not the first row. I actually removed all formatting from my gridview and still the same issue.
here is my code
[Code]....
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Aug 10, 2010
I am using the following XML structure
<SERVERS>
<SERVER NAME="A1" ID="1"></SERVER>
<SERVER NAME="A2"></SERVER>
<SERVER NAME="A3" ID="3" Parent="XYZ"></SERVER>
<SERVER NAME="A4" ID="4"></SERVER>
<SERVER NAME="A5" Parent="abc" value="10"></SERVER>
<SERVER NAME="A6"></SERVER>
</SERVERS>
I am accessing this xml file by using LINQ to XML in asp.net by using C#. I am able to access all the attributes of an XML node by explicitly specifying the name of the attribute. I want to write query on this xml file which reads all the attribute values of the xml node (In our example the node is SERVER) dynamically means I want to write the query which can read the read the value of the attribute Name & ID from first node, only name from second row, Name, ID & Parent from the third row , Name & ID from the fourth row, Name, Parent & Value from the fifth row & only Name from the sixth row without modifying the existing code every time. Once I add one of the attribute ( for example if I add the attribute ID in the sixth row ) in the above xml file then I dont need to modify my LINQ to XML query. My query should dynamically fetch the total number of attributes & display their values. Is their any way to do this ?
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Sep 13, 2010
the use of data annotations. when should we not use . or how should i use it when there are two or more tables on the form?
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Nov 2, 2010
I am developing a simple application. I have completed.
1 - Using Respositary Pattern
2 - using DataAnnotation for validation.
3 - Selecting, Creating, Updating and Deleting.
My Questions.1 - I have extra BL validation. Should I create Service layer or use that in Partial Class where my DataAnnotation is?
I dont want to use DataAnnotations in one class and other BL validation in another class. Is there a way to combine both or Should I use those separately. Confused here? Any examples to implement BL.
2 - I have lots of Calculations to run once record is reterived and insterted. Where I put these calculations? Should I make extensions and call in controller or Methods in separate file. Any clean approach.
3 - Can I use Repositary Pattern and Service model in ASP.NET webforms with ADO.NET, Entity Framework and Linq to sql?
4 - I don't know id this is stupid question. Can we use ADO.NET with DataAnnotation somehow in Webforms and ado.net with mvc?.
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Aug 11, 2010
PropertiesMustMatch fails because for some reason it's hit PRIOR to "Required" property. How come??
how do you set the order or validation so that Required is hit prior to any custom validation?
I have a class like so:
[Validation.PropertiesMustMatch("Password", "ConfirmPassword", ErrorMessage = "'Password' and 'Confirm password' do not match.")]
[Validation.ValidateMemberUsername("Username", "Oldusername")]
public class Member
[code]....
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Nov 2, 2010
Is there any support from JQuery for DataAnnotations?Found this but not sure if its supporting. http://bassistance.de/jquery-plugins/jquery-plugin-validation/
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Jan 11, 2011
Is there an out-of-the-box DataAnnotation attribute that checks if an integer is greater than a certain value?
public Model
{
[GreaterThan(0)]
public int MyVal{get;set;}
}
View 4 Replies
Oct 21, 2010
n edmx Contact entity PersonalInfo complex type is defined with property FullName and Title.In view the code is
[Code]....
Got buddy class like
[Code]....
When I submit form get an error of mapping but if I take FullName out of complex type than form is working fine.How I validate FullName if it is in Complex type?
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Mar 14, 2011
[Code]....
How can I maintain using data annotation attributes for validations in mvc3 different requirement for edit and create in an elegant manner. I have an different edit and create requirement.
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May 10, 2010
I've got a view with 2 forms on it - one to login and the other to register. My problem is that the client-side validation from MicrosoftMvcValidation is firing regardless of which form I submit - because my forms are rendering the inputs with the same id e.g.
<input id="User_Email"
name="User.Email" type="text"
value="" />
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I'm using a strongly-typed view with a model with this property:
Model property:
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Is it possible to specify the difference in the Html helper on the view or do I need to provide 2 seperate models somehow? I'm a bit in the dark.
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[HttpPost]
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{
Movie movie =
(
from m in _ctx.Movie.Include("MovieActors")
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_ctx.ApplyPropertyChanges(movieActor.Movie.EntityKey.EntitySetName,
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_ctx.SaveChanges();
}
return View(movieActor);
}
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{
public Movie Movie { get; set; }
public Actor Actor { get; set; }
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{
this.Movie = movie;
this.Actor =
(
from a in this.Movie.Actors
where a.ActorID == 1 select a
).First();
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}
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[code]...
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