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Value Cannot Be Null C#


Convert.ToInt32(dataTable.Rows[i][ORDER]) : (int?)null; k.Page = !required.Contains(dataTable.Rows[i][PAGE]) ? Why does Cutie act like this and lesser robots listen to it? Solution 2 Accept Solution Reject Solution Certainly both MD5Text and MD5Text.Text are not null, otherwise you could not observe the call to MD5Text.Text.Contains and then IndexOf. Parameter name: source” 1 How should I handler bool? his comment is here

Check the html source and see you are definitely getting value for @ViewBag.UserId in the following line. 3. Find exactly where it fails (and doing that you'll probably resolve it yourself). Columns in TagNumber Table: CREATE TABLE [dbo].[TagNumbers]( [TagNumberID] [int] IDENTITY(1,1) NOT NULL, [TagSerialNumber] [nvarchar](100) NOT NULL, [TagTypeRef] [int] NOT NULL, [CoreUserRef] [int] NOT NULL, [DateStamp] [datetime] NOT NULL, CONSTRAINT [PK_TagNumbers] PRIMARY Another thing to note if you're using EF is that it uses lazy loading on virtual navigation properties (ex TagNumbers).

Value Cannot Be Null. Parameter Name Value

Are keywords in resolv.conf case sensitive? What is the significance of the robot in the sand? The error you're getting is that it is null. Indeed.

  • 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.
  • I believe it returns null if table dataMetaDataKOR is empty.
  • Here is the call stack of my particular error: at System.String.IndexOf(String value, Int32 startIndex, Int32 count, StringComparison comparisonType) at System.String.Contains(String value) at Final_test.Form1.ScanScanner(String dir) in C:\Users\Admin\Documents\Visual Studio 2010\Projects\Final test\Final test\Form1.vb:line 155
  • asked 2 years ago viewed 6347 times active 2 years ago Upcoming Events 2016 Community Moderator Election ends Nov 22 Get the weekly newsletter!
  • Parameter name: source? 0 Getting exception when inserting an entity into a EF table 3 Entity Framework Code First connection 4 Outlook REST API error when filtering by attendee: “Value cannot
  • Parameter name: source The problem is in my code or the return of the webservice?
  • 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.
  • Appreciate it!!!!
  • Parameter name: key how to do solve this problem "Value cannot be null.

SAKryukov 5-Oct-11 12:52pm They will lean them, main thing is their attitude. But if the data in the database says it shouldn't be empty then your query is wrong. Next time always use debugger as Mehdi suggests. —SA Permalink Posted 5-Oct-11 7:37am Sergey Alexandrovich Kryukov1.1M Comments Mehdi Gholam 5-Oct-11 12:40pm It pains me that people are Value Cannot Be Null. Parameter Name Source Entity Framework Change it to user_id.

How can I save a file to a new location from inside Vim? It happens only in rare cases. The content you requested has been removed. We appreciate your feedback.

Parameter name: ms_no Value cannot be null. Value Cannot Be Null. Parameter Name Name Parameter name: type in DotNetNuke error: Value cannot be null. See more: C# ASP.NET MVC I am having this error how to resolve it... Source is the enumerable you are enumerating.

Value Cannot Be Null. Parameter Name Collection

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 The content of paramName is intended to be understood by humans.The following table shows the initial property values for an instance of ArgumentNullException.Property Value InnerExceptionA null reference (Nothing in Visual Basic). Value Cannot Be Null. Parameter Name Value Linux questions C# questions ASP.NET questions fabric questions SQL questions discussionsforums All Message Boards... Value Cannot Be Null Parameter Name Input What is this line of counties voting for the Democratic party in the 2016 elections?

Source is the enumerable you are filtering –Sergey Berezovskiy Feb 16 '15 at 9:09 @mrhands Check if ListMetadataKor is null or not . –Suraj Singh Feb 16 '15 at this content share|improve this answer answered Sep 4 '14 at 11:32 Yuliam Chandra 10.3k102646 Thanks for efficiency in response. Terms of Service Layout: fixed | fluid CodeProject, 503-250 Ferrand Drive Toronto Ontario, M3C 3G8 Canada +1 416-849-8900 x 100 MessageA localized error message string that identifies the null argument. Value Cannot Be Null Parameter Name String

Wich means "it's not containing/pointing too anything". Sinisa Hajnal 3-Nov-15 2:56am Set a breakpoint and debug. How does Gandalf end up on the roof of Isengard? weblink Another test you could do is to look at the value of TagNumbers (in the debugger) immediately after running the initial query.

So when I open again it happens. Value Cannot Be Null. Parameter Name Viewinfo Just check all references to this list in your code and look for assignments. If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem.

Any ideas? ...thank in advance!!! "I know" as in "I actually read out the values an checked it" or as in "I believe me and my fellow programmers didn't made anything

Parameter name: source2Entity Framework DbContext: Value cannot be null, parameter name source1System.ArgumentNullException: Value cannot be null Parameter name: input-1Value cannot be null. Looks like you should return empty list in that case –Sergey Berezovskiy Feb 16 '15 at 9:27 Ok.. Parameter name: source Stack Trace: [System.ArgumentNullException: Value cannot be null. Value Cannot Be Null. Parameter Name Path1 Parameter name: String Value cannot be null.

Parameter name: source StackTree :    at System.Linq.Enumerable.Where[TSource](IEnumerable`1 source, Func`2 predicate)    at Susenas2015.ViewModels.Kuesioner.VMVsen15_KVal.SettingValidationAndRange(List`1 listTextBox, List`1 listCheckBox, TabControl tabControl) in d:\handita\Office\Project\Susenas 2015\Aplikasi Template Survei\Susenas2015\ViewModels\Kuesioner\VMVsen15_KVal.cs:line 430    at Susenas2015.ViewModels.Kuesioner.VMVsen15_KVal.vSen15_K_Loaded(Object sender, RoutedEventArgs e) in d:\handita\Office\Project\Susenas 2015\Aplikasi So just eliminate your loop: namespace Treehouse.CodeChallenges { class Program { static void Main() { var count = 0; Console.Write("Enter the number of times to print \"Yay!\": "); var entry = share|improve this answer answered Oct 11 '13 at 13:45 johnny 654314 add a comment| up vote 1 down vote Resolved with the following solution 1)Right click on the edmx file, select check over here I never had the same name for any PK and FK.

Join them; it only takes a minute: Sign up Value cannot be null. var db = new hublisherEntities(); establishment_brands est = new establishment_brands(); est.brand_id = 1; est.establishment_id = 1; est.price = collection["price"]; est.size = collection["size"]; db.establishment_brands.Add(est); db.SaveChanges(); This gives me an error of Value ArgumentNullException Constructor (String) .NET Framework (current version) Other Versions Visual Studio 2010 .NET Framework 4 Silverlight Visual Studio 2008 .NET Framework 3.5 .NET Framework 3.0 .NET Framework 2.0  Initializes a new Optional Password I have read and agree to the Terms of Service and Privacy Policy Please subscribe me to the CodeProject newsletters Submit your solution!

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL) Top Experts Last 24hrsThis month OriginalGriff 265 F-ES Sitecore 220 Karthik Posting this much code is not going to work anyone from us. -KR Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) 3-Nov-15 2:45am Debug and find out the exact line. Parameter name: String1c# LINQ OrderBy, dynamic objects, and null values0LINQ returns Value cannot be null. I was banging my head against the wall trying to figure out why the SignInManager wasn't working correctly.

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