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Value Cannot Be Null.parameter Name Constructor

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Required fields are marked *Comment Name * Email * Website Search Search Recent Posts Web API 2 Controller with multiple get methods Value cannot be null. public class Person { private Person(){} // Entity Framework queries will work now public Person(string firstname, string lastname) { Firstname = firstname; Lastname = lastname; } public Guid PersonId { get; Parameter name: source up vote 40 down vote favorite 2 This is probably the biggest waste of time problem I have spent hours on solving for a long time. 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 his comment is here

We recommend upgrading to the latest Safari, Google Chrome, or Firefox. Tested using nightly packages. Parameter name: source Hot Network Questions Basic Geometric intuition, context is undergraduate mathematics Lab colleague uses cracked software. Parameter name: String2Entity Framework DbContext: Value cannot be null, parameter name source1Getting error on POST with Entity Framework - Value cannot be null.

Value Cannot Be Null Parameter Name Source

Useful repo link. Sign up for free to join this conversation on GitHub. current community chat Stack Overflow Meta Stack Overflow your communities Sign up or log in to customize your list. c# asp.net-mvc entity-framework share|improve this question edited May 10 at 20:46 AGB 2,2361623 asked Apr 29 '13 at 14:24 danielovich 1,80931626 7 Isn't the exception message explanatory? I've tried to access it in different ways, but always ended up with that exception.

We recommend upgrading to the latest Safari, Google Chrome, or Firefox. more hot questions question feed lang-cs about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation I am seen in darkness and in light, What am I? Value Cannot Be Null Parameter Name String Join them; it only takes a minute: Sign up ArgumentNullException: Value cannot be null.

For example, if the paramName argument is "arg1", the English language message string is: Value cannot be null.Parameter name: arg01 ParamNameThe parameter name string. Please try your request again or if you know who your site administrator is let them know too. The parameter in your constructor would is called s, but you have no property with which to match up s. (Again, this is not anything it would try, but if it the source code for the application is entirely on GitHub c# asp.net asp.net-mvc entity-framework share|improve this question asked May 13 '15 at 16:37 WizardOfMenlo 1291110 Is _db null or

Parameter name: constructor Locating and checking an executing DLL on a running web server or other application Entity Framework Core and calling a stored procedure Getting Web API Exception Details from Value Cannot Be Null. Parameter Name Collection why does this error keep popping out? is 16536 Ph47 commented Dec 14, 2015 How to get it? 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 C#

Already have an account? Sorry, there was a problem with your last request! Value Cannot Be Null Parameter Name Source Possible repercussions from assault between coworkers outside the office Assigning only part of a string to a variable in bash My cat sat on my laptop, now the right side of Value Cannot Be Null. Parameter Name Value Parameter name: source at System.Linq.Enumerable.Any[TSource](IEnumerable1 source, Func2 predicate) Case 2 -> when using ObjectContext for EDM Message=Unable to update the EntitySet 'Contact' because it has a DefiningQuery and no element exists

Reload to refresh your session. this content smitpatel referenced this issue Jun 8, 2016 Closed ForeignKeyAttribute can't be overriden with explicit configuration #5695 Sign up for free to join this conversation on GitHub. However, database table is not normalized and all field should be nullable. Unable to locate Dependency EntityFramework.MicrosoftSqlServer >= 7.0.0-rc2-16536 Unable to locate Dependency EntityFramework.Core >= 7.0.0-rc2-16536

Parameter name: constructor. As a monk, can I use Deflect Missiles to protect my ally? I've got three models: The Book class: public class Book : IBook, IHasThumbnail, IBugChecker { public Book() { Chapters = new List(); } [Key] public int ID { get; set; } weblink Scheduling a task into a period within a day, depending on whether or not it is a weekend Word for a Fact Believed by a Sub-Culture In the context of this

Should I report it? Value Cannot Be Null. Parameter Name Value C# share|improve this answer edited Oct 24 '13 at 14:28 answered Oct 24 '13 at 14:18 cunderpants 11 add a comment| up vote 0 down vote In MVC, View screen is calling How to stop NPCs from picking up dropped items Can an object *immediately* start moving at a high velocity?

In the meantime, here is the stack trace that I have.

  • Ph47 commented Dec 10, 2015 Have similar bug.
  • How do I deal with my current employer not respecting my decision to leave?
  • If you are following some of the principles of domain driven design you may not want a public empty constructor, no problem, make it private.
  • I can send a smaller project that has this issue but I would want to send it directly since our model is closed.
  • share|improve this answer answered Apr 29 '13 at 14:43 anaximander 4,6382251 1 In my case it was an incorrect conniption string in code, but still a connection string problem nonetheless.

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 not, then why? Already have an account? Parameter name: value1Invalid column name when inserting - Entity Framework0Entity Framework entity model's values empty when running constructor Hot Network Questions Lab colleague uses cracked software. Value Cannot Be Null Parameter Name Name I apologize for the wall of code, but I think this is as small as I can make it while staying in our situation.

at Microsoft.Data.Entity.Utilities.Check.NotNull[T](T value, String parameterName) at Microsoft.Data.Entity.Metadata.Conventions.Internal.RelationshipDiscoveryConvention.Apply(InternalEntityTypeBuilder entityTypeBuilder) at Microsoft.Data.Entity.Metadata.Conventions.Internal.RelationshipDiscoveryConvention.ApplyOnRelatedEntityTypes(InternalModelBuilder modelBuilder, EntityType entityType) at Microsoft.Data.Entity.Metadata.Conventions.Internal.RelationshipDiscoveryConvention.Apply(InternalEntityTypeBuilder entityTypeBuilder, EntityType oldBaseType) at Microsoft.Data.Entity.Metadata.Conventions.Internal.ConventionDispatcher.OnBaseEntityTypeSet(InternalEntityTypeBuilder entityTypeBuilder, EntityType previousBaseType) at Microsoft.Data.Entity.Metadata.Internal.InternalEntityTypeBuilder.HasBaseType(EntityType baseEntityType, ConfigurationSource configurationSource) at Microsoft.Data.Entity.Metadata.Internal.InternalModelBuilder.Ignore(EntityType entityType, How to prove that authentication system works, and that the customer is using the wrong password? System ArgumentNullException Class ArgumentNullException Constructor ArgumentNullException Constructor ArgumentNullException Constructor (String) ArgumentNullException Constructor (String) ArgumentNullException Constructor (String) ArgumentNullException Constructor ArgumentNullException Constructor (SerializationInfo, StreamingContext) ArgumentNullException Constructor (String) ArgumentNullException Constructor (String, Exception) ArgumentNullException Constructor check over here Sign in to comment Contact GitHub API Training Shop Blog About © 2016 GitHub, Inc.

more hot questions question feed lang-cs about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation MessageA localized error message string that identifies the null argument. Update 2* In fact, the solution from the first update does remove the exception, however it gives also the following problem.