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Value Cannot Be Null Exception C#


Option #1 would be to change lbSeats.Items.AddRange(seatMngr.ReturnVacantSeats());. Thank you so much Steven Parker. It turns out that when seeding the database someone had forgotten to set the UserName property which produced this same error. If you post your connection string and EF config then we can check. http://rinfix.com/value-cannot/value-cannot-be-null-parameter-name-exception.html

MessageA localized error message string that identifies the null argument. Professor Lewin: "Which string will break?" / Me: "That one." / Professor Lewin: "Wrong!" How to capture disk usage percentage of a partition as an integer? Vent kitchen hood vent to roof turbine vent? 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.

System.argumentnullexception Value Cannot Be Null. Parameter Name Source

I changed my code once again and instead of using GetSeatInfoAt(i), I checked if my nameList[rows, cols] == null, which is what I should have done from the beginning. How can I save a file to a new location from inside Vim? Parameter name: source” -2 Value cannot be null.

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  2. 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
  3. Using the eval command twice Scheduling a task into a period within a day, depending on whether or not it is a weekend How do unlimited vacation days work?
  4. Parameter name: value] System.Security.Claims.Claim..ctor(String type, String value, String valueType, String issuer, String originalIssuer, ClaimsIdentity subject, String propertyKey, String propertyValue) +10798181 System.Security.Claims.Claim..ctor(String type, String value) +34 Microsoft.AspNet.Identity.d__0.MoveNext() +1458 System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +93 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task
  5. I hope it works for you too.
  6. TSA broke a lock for which they have a master key.
  7. Top 120 487 Registered devs 141 166 Lines of code 16 903 924 number of downloads 1 270 386 Coffee cups consumed Open source © 2003 - 2016 CKSource Sp.
  8. My Project is in VS2005.
  9. See Also System.ArgumentNullException Class, System Namespace ArgumentNullException(System.String) Constructor public ArgumentNullException(string paramName); Summary Constructs and initializes a new instance of the ArgumentNullException class.

Was it legal to rant against trick or treating via loudspeaker during halloween? 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 Update GUI after choice. /// private void ReserveOrCancelSeat() { if (CheckSelectedIndex() == true) { string name = string.Empty; double price = 0.0; int selectedSeat = lbSeats.SelectedIndex; bool reserve = false; Value Cannot Be Null Parameter Name Input When all is done, I return this array.

Browse other questions tagged c# linq or ask your own question. Value Cannot Be Null. Parameter Name Value Not the answer you're looking for? How I can solve this? Thanks a lot :D –mrhands Feb 17 '15 at 1:05 | show 2 more comments up vote 3 down vote Value cannot be null.

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. Value Cannot Be Null C# Looks like you should return empty list in that case –Sergey Berezovskiy Feb 16 '15 at 9:27 Ok.. doh. Here there is no particular resource variable to which we were pointing in the Code, the surprise here is when the project was built using VS2005 no error was thrown.

Value Cannot Be Null. Parameter Name Value

I'm pretty sure that my Property ListMetadataKor is not null And ListMetadataKor is instance of List object that I have created. asked 3 years ago viewed 8798 times active 3 years ago Upcoming Events 2016 Community Moderator Election ends Nov 22 Related 2streamReader ArgumentNullException1ArgumentNullException was unhandled - Value cannot be null. System.argumentnullexception Value Cannot Be Null. Parameter Name Source Parameter name: constructor0Value cannot be null. Value Cannot Be Null Parameter Name String Browse other questions tagged c# arrays combobox argumentnullexception or ask your own question.

RemarksThis constructor initializes the Message property of the new instance to a system-supplied message that describes the error and includes the parameter name. http://rinfix.com/value-cannot/value-cannot-be-null-c.html option #2 (change): string[] vacantSeats = new string[totVacantSeats]; to: string[] vacantSeats = Enumerable.Repeat(string.Empty,totVacantSeats).ToArray(); messy frig, might work, might be total [email protected], but might get you past the error for now. My boss asks me to stop writing small functions and do everything in the same loop Can an object *immediately* start moving at a high velocity? You need to change that logic asap, otherwise you will definitely have edge cases that cause you untold debugging sessions in the future. Value Cannot Be Null. Parameter Name Value C#

I was calling Count on an instance of DbSet with a filter of null i.e. How can I claim compensation? It is provided so that application code can differentiate between exceptions caused by null arguments and exceptions caused by non-null arguments. this content Something is null that cannot be null.

I just want to add an entity to the table. Value Cannot Be Null Parameter Name Name Value cannot be null. up vote 8 down vote favorite 3 I don't know why I get this kind of error.

Currently we are facing problem of “Null Exception” in the below scenario.

hope this can help somebody. z o.o. 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 Value Cannot Be Null. Parameter Name Collection What is the most someone can lose the popular vote by but still win the electoral college?

Symmetric group action on Young Tableaux Can an object *immediately* start moving at a high velocity? 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. Parameter name: value, CreateIdentityAsync?4ArgumentNullException: Value cannot be null. have a peek at these guys Convert.ToInt32(dataTable.Rows[i][PAGE]) : (int?)null; k.Perlakuan = dataTable.Rows[i][PERLAKUAN].ToString(); k.RelFields = dataTable.Rows[i][RELFIELDS].ToString(); k.Rule = dataTable.Rows[i][RULE].ToString(); if (dataTable.Rows[i][LEVEL].ToString().ToUpper() == ("ART")) k.LevelKonsistensi = LevelKonsistensi.ART; else if (dataTable.Rows[i][LEVEL].ToString().ToUpper() == ("RT")) k.LevelKonsistensi = LevelKonsistensi.RT; else if (dataTable.Rows[i][LEVEL].ToString().ToUpper() ==

ArgumentNullException behaves identically to ArgumentException. because it run in release apps. LevelKonsistensi.ART : LevelKonsistensi.RT; if (k.IsEmpty()) continue; listMetadata.Add(k); } return listMetadata; } c# linq share|improve this question edited Feb 16 '15 at 9:25 asked Feb 16 '15 at 9:06 mrhands 3883928 Error is as follows: Value cannot be null.

Parameter name: format at System.String.Format(IFormatProvider provider, String format, Object[] args) at ProjectA.ctor(IntPtr windowHandle) at TestDT.frmScan.frmScan_Load(Object sender, EventArgs e) at System.Windows.Forms.Form.OnLoad(EventArgs e) at System.Windows.Forms.Form.OnCreateControl() at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible) What happens if there is exception in loading data tables or running ToolConvert methods? This forum is very much useful to me all through mycareer.sarvanan Proposed as answer by s3rvy Tuesday, August 10, 2010 7:31 PM Marked as answer by Alan_chenModerator Wednesday, August 11, 2010 Should I implement it ? –Mohammad Dayyan Jul 28 '14 at 9:35 [IgnoreMap] by the way –Dylan Chensky Jun 16 at 22:05 add a comment| 3 Answers 3 active

Parameter name: source in Asp.net0EF6 MVC: Value cannot be null. Possible repercussions from assault between coworkers outside the office Calculating ...5(5+4(4+3(3+2(2+1(1))))) Is there an actual army in 1984? Vent kitchen hood vent to roof turbine vent? And if I open my application it would stuck in that code.

Straight line equation Word for a Fact Believed by a Sub-Culture How can I open the next/previous file alphabetically? Erik Ralston 1,510 Points Erik Ralston Erik Ralston 1,510 Points 11mo ago Steven, Thank you!