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Value Cannot Be Null Parameter Name


But do you think that maybe my variable is still locating in memory with value null? –mrhands Feb 16 '15 at 9:23 @mrhands I'm 100% sure that ListMetadataKor is Parameter name: source] at Program.Main(): line 11 Here in your case ListMetadataKor is null. namespace DTO { public class UserDTO { public int UserID { get; set; } public string UserName { get; set; } public virtual ICollection Role { get; set; } } } Given the hints solve the puzzle How can the US electoral college vote be so different to the popular vote? weblink

Because you can't do anything with a null Reference other than assign it - something and that makes no sense for most functions. How to stop NPCs from picking up dropped items Departing from airport before visa is valid, but arriving when it is I am seen in darkness and in light, What am dbSet.Count(null); I found that passing null here was causing the error so I now call the parameter-less method if the filter is null: if (filter == null) { return dbSet.Count(); } I found the problem ..

Value Cannot Be Null. Parameter Name Value

Member 10740412 3-Nov-15 11:56am Plzzzz reply me...... What I'm basically doing here is that Tag Number has a foreign key from TagType table. Parameter name: source] System.Linq.Enumerable.Any(IEnumerable1 source, Func2 predicate) +4083335 System.Data.Entity.Internal.InternalContext.WrapUpdateException(UpdateException updateException) +87 System.Data.Entity.Internal.InternalContext.SaveChanges() +193 System.Data.Entity.Internal.LazyInternalContext.SaveChanges() +33 System.Data.Entity.DbContext.SaveChanges() +20 ... ... In the database is there a FK relationship between the type owning TagNumbers and the column that the field is being mapped to?

  1. Parameter name: type Source Error: Stack Trace: [ArgumentNullException: Value cannot be null.
  2. On the model of the TagTypes, there is a public virtual navigation to the tagNumbers [DataMember] public virtual List TagNumberss { get; set; } when removing the List<> and only making
  3. For some unknown reason the foreign key has to be named exactly like the primary key, thus TagTypeID and not TagTypeRef...
  4. Thanks a lot :D –mrhands Feb 17 '15 at 1:05 | show 2 more comments up vote 3 down vote Value cannot be null.
  5. Application Lifecycle> Running a Business Sales / Marketing Collaboration / Beta Testing Work Issues Design and Architecture ASP.NET JavaScript C / C++ / MFC> ATL / WTL / STL Managed C++/CLI
  6. Did you try with uncommenting the id.

share|improve this answer edited Jan 18 at 9:11 answered Apr 29 '13 at 14:32 Martin Mulder 8,23721037 2 This solved the problem to me, I suspect this is the solution Note that empty is quite a bit different than null. My schema looks like every column can be null. –danielovich Apr 29 '13 at 14:34 1 Could you post your connection string? –anaximander Apr 29 '13 at 14:37 add a Value Cannot Be Null. Parameter Name Viewinfo Find a mistake in the following bogus proof Will I get the same result if I use 18-55mm lens at 55mm (full zoom) and 55-200mm lens at 55mm (no zoom), if

Problem with function inside brackets. Value Cannot Be Null C# Privacy Statement| Terms of Use| Contact Us| Advertise With Us| CMS by Umbraco| Hosted on Microsoft Azure Feedback on ASP.NET| File Bugs| Support Lifecycle Skip to main content Like Us / Parameter name: source Rate this: Please Sign up or sign in to vote. I believe it returns null if table dataMetaDataKOR is empty.

because it run in release apps. Value Cannot Be Null. Parameter Name Collection It was working fine previously but now giving the error that value type can't be null. Parameter name: value0Value cannot be null, r nparameter name source Hot Network Questions Given the hints solve the puzzle Limit computation technology in a futuristic society What is the most someone Parameter name: source which line? .NET Teacher | .NET Videos 5 minutes Reply spatrick Member 14 Points 121 Posts Re: Value cannot be null.

Value Cannot Be Null C#

Appreciate it!!!! more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed Value Cannot Be Null. Parameter Name Value And if I open my application it would stuck in that code. Value Cannot Be Null Parameter Name Input Member 10740412 3-Nov-15 6:59am i change id in edit action to user_id...

Exception Details:System.ArgumentNullException: Value cannot be null. have a peek at these guys Parameter name: type Description:An unhandled exception occurred during the execution of the current web request. public void AddUserRole(int id, int userId) { Role role = db.Roles.Find(id); User user = db.Users.Find(userId); if (!role.Users.Contains(user)) { role.Users.Add(user); db.SaveChanges(); } } John C Rayan 3-Nov-15 10:22am Uncomment id Parameter name: constructor0Value cannot be null. Value Cannot Be Null Parameter Name String

You should confirm this by setting a BP on the line that is going to blow up and then examining the value of TagNumbers. Can you please help me on where I'm going wrong on this? Insults are not welcome. check over here Parameter name: source” 1 How should I handler bool?

Parameter name: source Jul 04, 2012 09:17 AM|spatrick|LINK Receiving the following error and cannot seem to find what I have missed. Value Cannot Be Null Parameter Name Name At a guess, you'll need something like this: Wich means "it's not containing/pointing too anything".

up vote 8 down vote favorite 3 I don't know why I get this kind of error.

Suvendu Shekhar Giri 3-Nov-15 2:50am Have you debugged it? How do I make an alien technology feel alien? Check the html source and see you are definitely getting value for @ViewBag.UserId in the following line. 3. Value Cannot Be Null. Parameter Name Path1 Parameter name: entitySet-10System.ArgumentNullException: Value cannot be null.

It happens sometimes, and I suspicious of my code that still have thread running while I close my Application. Parameter name: source Jul 04, 2012 11:44 AM|ignatandrei|LINK spatrick .ForMember(dest => dest.contactsPhoneNumbersVM, dest => dest.Ignore()) ignore is for not transfer anything?! .NET Teacher | .NET Videos 5 minutes Reply spatrick Member Anyway I have the intial issue resolved, thanks! this content Not the answer you're looking for?

When you declare a Referencec type it starts implictily as "null": string noText; //implictly null When you have a Reference type and want it to stop referencing anything you assign it Please sign in or sign up to post. Parameter name: source-2Value cannot be null. Parameter name: source Jul 04, 2012 09:48 AM|ignatandrei|LINK spatrick Value cannot be null.

Parameter name: source0Linq Query returning null parameters when selecting whole table0How to solve IEnumerable Value cannot be null. Parameter name: value, CreateIdentityAsync?4ArgumentNullException: Value cannot be null. tableCustomer has a Primary Key "CustomerID" or "CID" (if that is not ambigious/used by multipe tables) tableBill has a Primary Key "BillID" or "BID" and a Foreign Key "FK_CID". What do I do?

That either happens because you want to allow the Garbage Collector (GC) to recycle that memory or because you have some binding/automatic representation and want to clean the slate: string someText Please try the request again. How does Gandalf end up on the roof of Isengard? Parameter name: value return userIdentity; } An exception has occurred in CreateIdentityAsync method with the following stack trace ArgumentNullException: Value cannot be null.