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Posted 27 Mar 2013

How to fix the 'object' does not contain a definition for error

, 27 Mar 2013
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When building a View with a ViewBag containing a property that references a class.

One reason to get 'object' does not contain a definition for...'any property name' exception is that the class you referenced in the ViewBag dynamic property you added is a protected or private class.

Remember that if you don't mark the class, it will be always protected.

The ViewBag needs to access the class from a public application domain, not from protected.

This class will fail if you call ViewBag.Person.Name with the error  'object' does not contain a definition for...'Name' 

class Person {
public string Name { get; set; }
public string Surname {get; set; }

But if you write public before the class, all will be OK.

[__strong__]public class Person {
public string Surname {get; set; }
public string Name { get; set;}


This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


About the Author

AlbertoLeon CSharpMan
Technical Lead Get Me An Apartment
Spain Spain
I'm developer fall in love with C#, .NET and Mono.
Designing and programming websites since 2001.
I like literature (to read and to write), playing football (soccer)... and of course I'm great fan of La Roja (Spain football team)

At now I work in GetMeAnApartment, I do Research and Development features to upgrade our website (, MVC, MySQL) and business model (rental short stay apartments)

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SOFTWARE: Visual Studio 2010, 2008. Monodevelop. Glade. Illustrator. Indesign. Photoshop. Dreamweaver.


IT Director and website developer, 2010 - present

Círculo Rojo Publicidad y Comunicación
IT Director and websites developer, 2007 - 2010

Dédalo Creative
Co-founder,Programmer and Developer, Graphical designer 2006 - 2007

Costa Mediterránea Comunicación
Chief writer, 2004 - 2006

Stalker Creacion
Web designer and developer, 2001 - 2003

Designer and Programmer, 2001 - present

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Comments and Discussions

Questionorder matters? Pin
Member 1089674020-Jun-14 5:01
memberMember 1089674020-Jun-14 5:01 
AnswerRe: order matters? Pin
AlbertoLeon CSharpMan20-Jun-14 5:11
memberAlbertoLeon CSharpMan20-Jun-14 5:11 

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