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Value Cannot Be Null. Parameter Name Key Dictionary


You may share the project on the OneDrive, we will check it. i faced the problem even i created a control . Isn't AES-NI useless because now the key length need to be longer? Skip to content Ignore Learn more Please note that GitHub no longer supports old versions of Firefox. check over here

Do you want to know when a feature you care about is added or when a bug fixed? Stack Trace: [ArgumentNullException: Value cannot be null. I looked in the source, and the mapping is done from %HOMEDRIVE%%HOMEPATH%. Can you narrow down your problem? –John Saunders Apr 7 '14 at 1:36 add a comment| 5 Answers 5 active oldest votes up vote 10 down vote I tried everything you

C# Dictionary Nullable Key

Rather than running the Garbage Cleanup right then and there, restructuring the dictionary, and leading to bad performance; the dictionary will just replace the KEY value with the key you previously This is wierd because sometimes works, sometimes not. Server Error in ‘/' Application.

Parameter name: key Jan 05, 2015 02:10 PM|Rion Williams|LINK It sounds like you are trying to retrieve a null key from a Dictionary. You can also export to a json file, but you need to edit it to make sure there are no passwords or other sensitive information included. I'm not convinced this is a good explanation. –ANeves Sep 7 '11 at 12:10 However null does not equal null. Value Cannot Be Null. Parameter Name Key C# Related Posted in Technology. 1 Comment » One Response to "Sitecore 8 error editing the presentationlayer" Sitecore 8 error editing the presentation layer | cyberkrul Says: October 15, 2015 at 6:02

Strings are not interned if they are the result of a computation. C# Dictionary Null Value This code: var nullableBoolLabels = new System.Collections.Generic.Dictionary { { true, "Yes" }, { false, "No" }, { null, "(n/a)" } }; ...results in this exception: Value cannot be null. Parameter name: key Jan 06, 2015 09:44 AM|Rion Williams|LINK azlamptb public ActionResult Edit(int id) { var row = db.CompanyModels.Find(id); return View(row); } Since you aren't using a Can a president win the electoral college and lose the popular vote How to prove that authentication system works, and that the customer is using the wrong password?

Parameter name: key Source Error: An unhandled exception was generated during the execution of the current web request. Value Cannot Be Null Parameter Name Key Sitecore bhugot commented Aug 3, 2016 System.Collections.Immutable.dll!System.Collections.Immutable.ImmutableDictionary.GetValueOrDefault(System.Collections.Immutable.IImmutableDictionary dictionary, string key, string defaultValue) Unknown Microsoft.VisualStudio.ProjectSystem.VS.Implementation.dll!Microsoft.VisualStudio.ProjectSystem.VS.Implementation.VsProjectReferencesProviderContext.CreateProviderContextAsync() Unknown mscorlib.dll!System.Runtime.CompilerServices.AsyncMethodBuilderCore.MoveNextRunner.InvokeMoveNext(object stateMachine) Unknown mscorlib.dll!System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, object state, bool preserveSyncCtx) Unknown mscorlib.dll!System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, object This should work, but I can see that there may be some quirks: https://support.microsoft.com/en-us/kb/101507 I will replace this with the Environment.SpecialFolder.Personal: https://msdn.microsoft.com/en-us/library/system.environment.specialfolder(v=vs.110).aspx In my test setup, this folder maps to a It's much more likely that there's something going wrong between your XML file, and the XML node you are creating from it. –Jamie Treworgy Jul 27 '11 at 15:33

C# Dictionary Null Value

If you want an exemple of a possible workaround, you can try something similar to Need an IDictionary implementation that will allow a null key share|improve this answer edited Feb 1 value) { if (value == null) { ... } else if { ... } else { ... }; } –Juliet Feb 1 '10 at 4:58 3 @Juliet, long story, but C# Dictionary Nullable Key Stack Trace: [ArgumentNullException: Value cannot be null. C# Dictionary Null Check Parameter name: key Jan 06, 2015 03:58 AM|ignatandrei|LINK How it is defined in the db Class the CustomerModels?

duplicati member kenkendk commented Mar 24, 2016 If you can get any more information on this issue, that would help. check my blog I was in the vanilla C mindset of a string simply being an array of characters, so it took me a while to figure out why a string built by concatenation where i get from this MVC4 Reply ignatandrei All-Star 119116 Points 27498 Posts ModeratorMVP Re: Value cannot be null. Not the answer you're looking for? C# Dictionary Empty String Key

The error message is "value cannot be null. Progress, Telerik, and certain product names used herein are trademarks or registered trademarks of Progress Software Corporation and/or one of its subsidiaries or affiliates in the U.S. Wednesday, June 15, 2011 2:14 PM Reply | Quote 0 Sign in to vote Can u post the code generating the errorMark Answered, if it solves your query Rohit Arora Thursday, this content In C++, you oftentimes have to pick a key that will not be used - the dictionary uses this key to point to deleted and/or empty entries.

You can see this sort of behavior in the Google hashtable (dictionary for you .NET people :) in the documentation here: http://google-sparsehash.googlecode.com/svn/trunk/doc/dense_hash_map.html Look at the set_deleted_key and set_empty_key functions to get System.argumentnullexception: Value Cannot Be Null. Parameter Name: Key For instance, you have a dictionary of , and after inserting an entry, you delete it. Maria Ilieva Admin 4017 posts Posted 09 Jul 2015 Link to this post Hi, Note that this problem is already fixed and the fix is included in the previous internal build

I have install the version 13.1 , 14.1.6 and 15.1.6 on my machine Gabriel 11.10.2015 Update to 15.1.7 and got the same error Alessandro (DevExpress Support) 11.11.2015 Hi,I have checked this

See Trademarks or appropriate markings. Failed to connect: SQL logic error or missing database no such table: LogData agrajaghh commented Nov 10, 2016 @timonoj what version are you running? The problem is all to do with Visual Studio doing something wrong and nothing to do with SqlDataSource or any other Web Forms controls. –Stony Oct 28 at 11:33 add a System.collections.generic.dictionary`2.findentry(tkey Key) My Account ManageYour Profile Change your addressemail and password Assign Licenses Manage licensesfor your dev team Renew anExisting SubscriptionPurchaseHistory New order statusand previous purchases DownloadYour Products Need help or require more

share|improve this answer answered Feb 2 at 10:34 Mike Gledhill 9,57136864 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Google Sign Parameter name: key Jan 06, 2015 02:37 AM|azlamptb|LINK public ActionResult Edit(int id) { var row = db.CompanyModels.Find(id); return View(row); } this is that code and We recommend upgrading to the latest Safari, Google Chrome, or Firefox. have a peek at these guys Thanx in advance.

Developer Express Inc disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. Thanks for sharing that! Join them; it only takes a minute: Sign up Problem with Dictionary up vote 0 down vote favorite Can anyone help me? Basically the wrapper consists of an HasValue boolean that tells if it is null or not, and a Value to contain the value of the value type.