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Parameter Cannot Be Null Parameter Name Key

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Make sure there are no nulls in your DataSet coming back from the database. Run your project in debug up to the point when you are about to get this error then go to the VS IDE and click Debug | Exceptions, tick the box The file I've provided is a bare-bones example where the issue duplicates. Those are the names of configurations, different in how the project is built. http://rss4medics.com/cannot-be/parameter-cannot-be-null-parameter-name-source.php

Thanks! 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! ovizii commented Jun 21, 2016 If I paste these 2 variables into my explorer I get: %HOMEPATH% => C:\Users\myuser %HOMEDRIVE% => C:\ duplicati member kenkendk commented Jun 21, 2016 Thanks, that Parameter name: key Source Error: Line 19: public ActionResult Index() Line 20: { Line 21: return View(db.CustomerModels.ToList()); Line 22: } Line 23: Source File: f:\VsProject\MVC4\JbOrder\Jborder\Jborder\Controllers\CustomerController.cs Line: 21 Stack Trace: [ArgumentNullException:

Value Cannot Be Null. Parameter Name Key C#

Parameter name is misleading. If the field is not required, it might be empty. duplicati member kenkendk commented Jun 21, 2016 I just tried reproducing on my Windows 10 machine, and I cannot trigger the problem.

Hope you get a reply soon from their support staff! I have the same issue. I don't no where it fails. Key Cannot Be Null. Parameter Name Key (mscorlib) It doesn't jump into the VS2012 but only gives the error in the browser.

If the field is not required, it might be empty. Value Cannot Be Null Parameter Name Key Sitecore MVC4 Blog | Twitter | Stack Overflow |LinkedIn Reply Siva Krishna... Parameter name: key Jan 05, 2015 02:07 PM|azlamptb|LINK I stuck in this problem , this error happening while data insert ,update,delete in Asp.net mvc 4 [ArgumentNullException: Value cannot be null. Parameter name: buffer.

Stack Trace: [ArgumentNullException: Value cannot be null. Value Cannot Be Null. Parameter Name Key Mvc Parameter name: key Description: An unhandled exception occurred during the execution of the current web request. I will try to fix that. Parameter name: key] System.Collections.Specialized.HybridDictionary.get_Item(Object key) +6693750 System.Web.Security.RolePrincipal.IsInRole(String role) +9461152 System.Linq.Enumerable.Any(IEnumerable`1 source, Func`2 predicate) +146 System.Web.Mvc.AuthorizeAttribute.AuthorizeCore(HttpContextBase httpContext) +200 System.Web.Mvc.AuthorizeAttribute.OnAuthorization(AuthorizationContext filterContext) +159 System.Web.Mvc.ControllerActionInvoker.InvokeAuthorizationFilters(ControllerContext controllerContext, IList`1 filters, ActionDescriptor actionDescriptor) +96 System.Web.Mvc.Async.<>c__DisplayClass25.b__1e(AsyncCallback asyncCallback, Object asyncState)

Value Cannot Be Null Parameter Name Key Sitecore

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 Go Here Parameter name: key] System.Collections.Generic.Dictionary`2.FindEntry(TKey key) +10627293 System.Collections.Generic.Dictionary`2.TryGetValue(TKey key, TValue& value) +12 Microsoft.VisualStudio.Web.PageInspector.Runtime.WebForms.SelectionMappingRenderTraceListener.GetLiteralTraceData(LiteralControl literal, TraceData& data) +97 Microsoft.VisualStudio.Web.PageInspector.Runtime.WebForms.SelectionMappingRenderTraceListener.GetTraceData(Object renderedObject) +421 Microsoft.VisualStudio.Web.PageInspector.Runtime.WebForms.SelectionMappingRenderTraceListener.EndRendering(TextWriter writer, Object renderedObject) +79 System.Web.UI.RenderTraceListenerList.EndRendering(TextWriter writer, Object renderedObject) +58 System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, Value Cannot Be Null. Parameter Name Key C# Hope you can work with this info :) ❤️ 1 Head commented Apr 14, 2016 Same problem here. Key Cannot Be Null. Parameter Name: Key C# The error message is "value cannot be null.

Parameter name: key Mark-up: http://rss4medics.com/cannot-be/parameter-cannot-be-null-viewinfo.php Points 15,024 Replied On: Thu, Oct 25 2012 12:37 PM Reply Verified by Pete (BSC) Hi Pete (BSC), This issue is being caused by the call to WebDataGrid1.ClearDataSource() in When I set those up, and pressed "Run now', I get an error message in a red box on the bottom of the browser-screen. If it actually answered your question, please remember to "Mark as Answer". System.collections.generic.dictionary`2.findentry(tkey Key)

EDIT : Actually it doesnt fail. Your Email This email is in use. This was one of the points I made in my original post. have a peek here There is a known issue however with clearing the datasource when DataViewState is enabled, which results in the stated exception, which has been resolved in the latest service releases for Volumes

There was a null value in a field that had a choice list. We recommend upgrading to the latest Safari, Google Chrome, or Firefox. All Rights Reserved.

Please use the following (the paths can be changed, but the middle line must be run to duplicate this): Workbook workbook = Workbook.Load(@"C:\buggedspreadsheet.xlsx"); workbook.Worksheets[1].Rows.Remove(2); workbook.Save(@"C:\Users\Paul\Downloads\new.xlsx"); Thanks, Paul Reply Post Points: 5

Parameter name: key at System.Collections.Generic.Dictionary`2[SpawnPopulation,System.Int32].ContainsKey (.SpawnPopulation key) [0x00000] in :0 at SpawnHandler.AddInstance (.Spawnable spawnable) [0x00000] in :0 at Spawnable.Add () [0x00000] in :0 at All-Star 24009 Points 4088 Posts Microsoft Re: Value cannot be null. Konstantin Dikov Admin 1763 posts Posted 15 Jul 2015 Link to this post Hi Ralf, TheQ2 2015 SP1 is scheduled for July 29 and if everything goes as planned, the SP1 Key Cannot Be Null. Parameter Name Key (system) Do you want to know when a feature you care about is added or when a bug fixed?

I assume there is a bug in the new build and reverted back to the Q1 2015, which works fine. You may share the project on the OneDrive, we will check it. What is the most efficient & fastest way to speed up the installation of packages with thousands of items? Check This Out Wulf, Jul 8, 2016 #4 Yatta Scavenger Just for confirmation, a plugin containing only this : Code (Text): void OnServerInitialized() {

MVC4 Blog | Twitter | Stack Overflow |LinkedIn Reply azlamptb Member 1 Points 25 Posts Re: Value cannot be null. Example for a commutative subring of a non-commutative ring Absolute values of complex irreducible characters of finite groups Why is looping over find's output bad practice? Please use the code I provided (Remove that exact line only) with that exact file (don't make any changes to the file). Terms of UseSite FeedbackPrivacy Policy Powered by Progress Sitefinity PRODUCTS Complete .NET Toolbox DevCraft Deliver awesome UI with the richest .NET toolbox Mobile App Development Telerik Platform Develop cross-platform mobile applications

It is in Dutch, but it translates to: Error while running Value cannot be null. share|improve this answer answered May 13 '15 at 13:01 Goutham ܢܢ 126312 wow... However, I found a workaround that, for some reason I dont know, worked.