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Value Cannot Be Null C#


Try using debugger and narrow down your issue and the post the relevant code and error details. 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 The conclusion is: labelX12 is null. This message takes into account the current system culture.This constructor initializes the ParamName property of the new instance using the paramName parameter. http://rinfix.com/value-cannot/value-cannot-be-null.html

and its giving me exception here John C Rayan 3-Nov-15 7:08am You have to change only in [HttpPost] Edit not [HttpGet]. Find out if you put a query togehter (somewhere outside your example code) where you are using a LINQ-method, or that you used an IEnumerable as a parameter which is NULL. Insults are not welcome. Like you would be trying to do this: Int32.Parse(null); or this: noText = null; Int32.Parse(noText); Marked as answer by linkit Tuesday, February 12, 2013 8:13 AM Monday, February 11, 2013 11:52

Value Cannot Be Null. Parameter Name Value

So I think I have to make remote debugger first to know the real problems. How do you invoke the edit view? You’ll be auto redirected in 1 second.

In it, you'll get: The week's top questions and answers Important community announcements Questions that need answers see an example newsletter By subscribing, you agree to the privacy policy and terms If you post your connection string and EF config then we can check. This error message often crops up when your connection string is wrong. Value Cannot Be Null. Parameter Name Source Entity Framework And its definitely null at the time you are filtering it second time.

Can you please help me on where I'm going wrong on this? Value Cannot Be Null. Parameter Name Collection is user_id working fine? Linked 17 Using LINQ to find item in a List but get “Value cannot be null. Member 10740412 3-Nov-15 9:35am Edit View..... @model SampleWeb.Models.UpdateUser @{ ViewBag.Title = "Edit"; } @using (Html.BeginForm("Edit", "User", FormMethod.Post)) { @Html.ValidationSummary(true)

User Details @Html.Partial("_userDetailsEdit",

See more: VB VB.NET I am getting a argument null exception error in one of my subs: If MD5Text.Text.Contains(labelX12) Then CheckedListBoxControl1.Items.Add(fs.FullName) lblvirus.Text = CheckedListBoxControl1.Items.Count End If MD5Text.Text = MD5Reader.ReadToEnd and labelx12 Value Cannot Be Null. Parameter Name Name What episode of Star Trek is this creature on? operator and provide default empty array. Parameter name: source in Asp.net0EF6 MVC: Value cannot be null.

Value Cannot Be Null. Parameter Name Collection

context.Users.AddOrUpdate(u => u.UserName, new ApplicationUser { UserName = "demo", Email = "[email protected]", EmailConfirmed = true, PhoneNumberConfirmed = true, PasswordHash = password, PhoneNumber = "111-222-3344", SecurityStamp = Guid.NewGuid().ToString() //THIS IS WHAT I I will contact the person responsible for the webservice. –Rodrigo Mendes Lopes Sep 4 '14 at 11:58 Here are some linq code examples that will give you an argument Value Cannot Be Null. Parameter Name Value Add a Solution Add your solution here B I U S small BIG code Plain TextC++CSSC#Delphi / PascalF#HTML / XML / ASPJavaJavascriptObjective-CSQLSwiftPerlPHPPythonVBXMLvar < > & link [^] encode untab case indent Value Cannot Be Null Parameter Name Input Terms of Service Layout: fixed | fluid CodeProject, 503-250 Ferrand Drive Toronto Ontario, M3C 3G8 Canada +1 416-849-8900 x 100 12,582,180 members (55,097 online) Sign in Email Password Forgot your

When you try to log in it takes the SecurityStamp and stuffs it into the ClaimsIdentity. check my blog Monday, February 11, 2013 1:12 PM Reply | Quote 0 Sign in to vote I did read the values and checked it, all the data is correct... public ActionResult Edit(UpdateUser model, string User_Id) { try { UserDTO user = new UserDTO(); user.UserName = model.UserName; new UserHandler().Update(user,int.Parse(User_Id)); return RedirectToAction("Details", new RouteValueDictionary (new { id = user.UserID})); } catch { Thank you so much Steven Parker. Value Cannot Be Null Parameter Name String

  1. Exception Details: System.ArgumentNullException: Value cannot be null.
  2. Join them; it only takes a minute: Sign up Value cannot be null.
  3. I'm still confuse because I can get what actually happen here. –mrhands Feb 16 '15 at 9:14 | show 4 more comments 3 Answers 3 active oldest votes up vote 5
  4. This may be an issue for any other methods on DbSet as well.

Learning resources Microsoft Virtual Academy Channel 9 MSDN Magazine Community Forums Blogs Codeplex Support Self support Programs BizSpark (for startups) Microsoft Imagine (for students) United States (English) Newsletter Privacy & cookies 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 Is it possible for a diesel engine computer to detect (and prevent) a runaway condition? this content Do you assign listMetadataKor variable in that case?

Parameter name: source” 1 How should I handler bool? Value Cannot Be Null. Parameter Name Viewinfo General FAQ Ask a Question Bugs and Suggestions Article Help Forum Site Map Advertise with us About our Advertising Employment Opportunities About Us Ask a Question All Questions All Unanswered FAQ MathSciNet review alert?

Empty is fine.

share|improve this answer answered Mar 26 '15 at 1:31 Kevin Heidt 6501614 add a comment| up vote 0 down vote In a similar way to Kevin, we were also experiencing this I have loaded it using thread BWHelper.Run –mrhands Feb 16 '15 at 9:28 @mrhands also possible problem is handling of exceptions in your BWHelper.Run method. up vote 8 down vote favorite 3 I don't know why I get this kind of error. Value Cannot Be Null. Parameter Name Path1 What is a satisfactory result of penetration testing assessment?

Find exactly where it fails (and doing that you'll probably resolve it yourself). Parameter name: elementID Value cannot be null. Parameter name: stream Error Value cannot be null or empty. have a peek at these guys Sign in using Search within: Articles Quick Answers Messages Use my saved content filters home articles Chapters and Sections> Search Latest Articles Latest Tips/Tricks Top Articles Beginner Articles Technical Blogs Posting/Update

We appreciate your feedback. So I've finnaly figured out where exactly it comes from... Thanks so much for all the help! Parameter name: key how to do solve this problem "Value cannot be null.

Using the eval command twice Is it possible to hand start modern planes? In the database is there a FK relationship between the type owning TagNumbers and the column that the field is being mapped to? Michael Taylor - 2/11/2013 http://msmvps.com/blogs/p3net Marked as answer by linkit Tuesday, February 12, 2013 8:14 AM Monday, February 11, 2013 3:05 PM Reply | Quote Moderator 2 Sign in to vote Missing } inserted. \int dx = x + C & Dealing With Dragonslayers What is a satisfactory result of penetration testing assessment?

MessageA localized error message string that identifies the null argument.