.NET Tutorials, Forums, Interview Questions And Answers
Welcome :Guest
Sign In
Win Surprise Gifts!!!

Post New Web Links

Deserializing nullable model properties

Posted By:      Posted Date: August 24, 2010    Points: 0   Category :ASP.Net

Hi everyone,

I'm posting Json data to an action that has a model class as a parameter using the JsonValueProviderFactory. Everything works except for any nullable properties in the model, such as double? and bool? - they always materialize as null, even if a value is posted.

I'm not sure if this issue is specific to the JsonValueProviderFactory, or MVC in general.

Being new to MVC I'd appreciate any help with this issue.


View Complete Post

More Related Resource Links

Serializaing/deserializing XOMLs with custom activities that have properties of ISerializable types

I have custom activities that have dependency properties of types that implement ISerializable. When they are serialized/deserialized to XOML, the ISerializable-implied functionality is ignored and the standard reflection-based SerializableAttribute behavior is invoked. This poses a serious problem since the types require precise control over their serialization to ensure that proper internal state is maintained across serialization boundaries. I am aware of the WF custom serialization methods as mentioned in Tom Lakes' blog post, but they seem to require the DesignerSerializerAttribute attribute on all custom types. This is a problem because the types are business objects shared across many (non-WF) applications and they are part of a seperate code base to which I have no access. Is there a different method for getting custom serialization? And what is the reasoning behind the WF team choosing to ignore the very basic ISerializable attribute which is supported by every other .NET API across the framework? Thanks in advance.

Dynamic and Model Properties. Don't colide?



On an Html Helper I have the following:


On my controller I have the following:

PostEditViewModel model = new PostEditViewModel();    
model.Roles = new[] {1,2};    
ViewModel.Roles = new SelectList(_roleService.GetAll(), "Id", "Name");  
return View(model);

Is there a way to differenciate the on an Html Helper the property model.Roles and ViewData.Roles.

They are different or not?

If they aren't wouldn't I get an exception?



Binding WPF Controls to an Entity Data Model

In this interview, programming writer, McLean Schofield, demonstrates how to bind WPF controls to an entity data model, using Visual Studio 2010 Beta 1. You can also learn more in the topic: Walkthrough: Binding WPF Controls to an Entity Data Model.

Model View Controller (MVC) for ASP.NET

Model View Controller (MVC) architectures, immediately wonder how the MVC pattern can be applied in an ASP.NET world. This article will demonstrate how the MVC pattern can be applied to an ASP.NET web application and still maintain the basic Microsoft supplied architecture.

WCF Tip: Using Properties in Service Contracts

you'll notice all of the Service Contracts are implemented with interfaces containing only methods. For the longest time I thought that's all that was supported, until I thought about it a little more. In C# land, properties are simply wrappers around a get method and set method, so why wouldn't we be able to use properties in a service contract? Well the answer is we can.

Dynamic Systems Development Model (DSDM) Methodology

The Dynamic Systems Development Model was developed in the U.K. in the mid-1990s. It is the evolution of rapid application development (RAD) practices. DSDM boasts the best-supported training and documentation of any of the agile software development techniques, at least in Europe. DSDM favors the philosophy that nothing is built perfectly the first time and looks to software development as an exploratory endeavor.

Overview of SharePoint Object Model

SharePoint offers a set of structured server-side objects those are widely used to program SharePoint Applications. These objects are hierarchically arranged and you can drill down through the object hierarchy to obtain the object that contains the components of SharePoint Application you need to use in your code.

Binding WPF Controls to an Entity Data Model

In this interview, programming writer, McLean Schofield, demonstrates how to bind WPF controls to an entity data model, using Visual Studio 2010 Beta 1. You can also learn more in the topic: Walkthrough: Binding WPF Controls to an Entity Data Model.

Automatic vs Explicit Properties

If the reason that motivated the change from automatically implemented property to explicitly implemented property was to change the semantics of the property then you should evaluate whether the desired semantics when accessing the property from within the class are identical to or different from the desired semantics when accessing the property from outside the class.

Dependency Properties

When you begin to develop appliations with WPF, you will soon stumble across DependencyProperties. They look quite similar to normal .NET properties, but the concept behind is much more complex and powerful

Xml File Methods and Properties

Method and Properties of XmlTextWriter class:
The XmlWriter class is a base class that outputs an XML data structure. It has methods to sequentially write XML elements in a proper hierarchy to create an XML file or other types of output streams. The System.Xml namespace provides support for the XmlWriter. It must be imported to the ASP.NET page with the directive

<%@ Import Namespace="System.Xml" %>

The XmlTextWriter

XmlWriter is an abstract class that is implemented as an extended XMLTextWriter class. The XmlTextWriter writes a sequence of XML nodes one element at a time. Output can be written to an XML file, although other streams of output data can be produced. It can create a new file or overwrite an existing file. Its non-cached writing techniques provides very fast generation of an output stream.

'Model' cannot be declared in this scope


I have a complex partial view (ugly stuff), the view page has this line:- 

<% Html.RenderPartial("PartialIndicatorWeighting", indicator);%>
and inside the ugly partial view I have this,
<td><%: Model.Active %><%: Html.CheckBoxFor(Model => Model.Active)%></td>
I'm trying to display a list of checboxes to show if the item is active or not, I get the following error:-
A local variable named 'Model' cannot be 

lossing focus from model pop up window controls


hi i using a model pop up window with some textbox but when i click on textbox of model pop up focus move to back to page textbox control plz help me 

How to detect mobile phone name/model no from asp.net?


Hi experts,

Can I detect the Name/model no of the mobile phones ,which are browsing my asp.net website from C# code behind? I need to show welcome message, addressing their model numbers and redirect to appropriate pages.

Thanks in advance for your reply.


C# conversion to VB and properties


I am trying to implement image caching for a web application and I found some code on the Internet that implements an HttpHandler that does this. The code was in C# and since my web app is written in VB, I decided to convert the code to VB. I managed to convert everything except the following code (in bold):

public class FileExtensionCollection : ConfigurationElementCollection
        public override ConfigurationElementCollectionType CollectionType
                return ConfigurationElementCollectionType.AddRemoveClearMap;

        public FileExtension this[int index]
            get { return (FileExtension)BaseGet(index); }

using reflection to emit properties to the top of the entity graph


I've got a class

  public class Criminal

public HouseholdMember[] LiedAboutFSHousehold { get; set; }

      public HouseholdMember[] FoodstampTrafficingHousehold { get; set; }
HouseholdMember inherits Person, as do many other classes.  

  public class HouseholdMember: Person


What I&#

OneNote 2010: Creating OneNote 2010 Extensions with the OneNote Object Model


Learn how to build applications and plug-ins that interoperate with data from OneNote 2007 and 2010 using the OneNote Object Model library freely available on CodePlex. Andy Gray demonstrates how easy it is to integrate information from OneNote notebooks, sections and pages into smart client and Web apps.

Andy Gray

MSDN Magazine July 2010

ASP.NetWindows Application  .NET Framework  C#  VB.Net  ADO.Net  
Sql Server  SharePoint  Silverlight  Others  All   

Hall of Fame    Twitter   Terms of Service    Privacy Policy    Contact Us    Archives   Tell A Friend