Length cannot be less than zero. Parameter name: length

Length cannot be less than zero. Parameter name: length

• dexxter

  I am not able to find out where it error occurs. As the code works fine in development environment and when i host it i get this error.
  After getting this error i will replace the dll. then the application will work again adn if i view the same page that caused the error it will work fine but i will get this error in some other page.
  Is it some bug in ASP.NET 
  
  

• jkreps

  You are using a negative length in any operation. Maybe a string operation were you request a part of the string and you defined length negative!
  
  Just do what the messages says: Check the stack trace.
  Launch the program in the debugger and see what happens. Usually you should see the wrong code line somewhere in the callstack.
  
  

• Bhuvaneshwari K

  Hello

  i got this error inconstantly in my appications page and itself it becoming ok...i belive i got this problem in a mean while i upgrade my dll in the web.....i think u too faced some problem like this

  please let me know the solution.........

  System.Web.HttpUnhandledException: Exception of type System.Web.HttpUnhandledException was thrown. ---> System.ArgumentOutOfRangeException: Length cannot be less than zero.

  Parameter name: length

  at System.String.Substring(Int32 startIndex, Int32 length)

  at System.Web.UI.Util.GetScriptLocation(HttpContext context)

  at System.Web.UI.WebControls.BaseValidator.RegisterValidatorCommonScript()

  at System.Web.UI.WebControls.BaseValidator.OnPreRender(EventArgs e)

  at System.Web.UI.Control.PreRenderRecursiveInternal()

  at System.Web.UI.Control.PreRenderRecursiveInternal()

  at System.Web.UI.Control.PreRenderRecursiveInternal()

  at System.Web.UI.Page.ProcessRequestMain()

  --- End of inner exception stack trace ---

  at System.Web.UI.Page.HandleError(Exception e)

  at System.Web.UI.Page.ProcessRequestMain()

  at System.Web.UI.Page.ProcessRequest()

  at System.Web.UI.Page.ProcessRequest(HttpContext context)

  at System.Web.CallHandlerExecutionStep.System.Web.HttpApplication+IExecutionStep.Execute()

  at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

  
  
  

• Ryan Po

  Thanks for your reply.
  The error i was talking about is happening Inconstantly. It happens all of a sudden in a page and after that i am not able to access any page. But if i replace the application dll i am able to acces the application and the error does not occur if i do the same operation again which caused the errror perviously.
  
  I am not doing any substring operation in my page. its usually in view pages i get this error. and the beauty is next time i will get this error in some other page.
  
  please help.
  
  

• stack

  Please help, i'm also experiencing the same problem. But very strange, it works fine if I load the same page using Firefox.. I can't find the answer anywhere..
  

• AnotherAndy

  I am getting the same issue as well. It JUST started happening. It seems to only be happening if my .DLL is in Release mode. If I switch out of Release and compile in debug mode and re-upload the dll to my host (atlantic.net) its works...

  
  

• YAYASOFT

  I'm getting the same problem.. I'm not sure where it starts from either.

  It occurs when I am Rendering attributes for a custom control. The only reference to Length is:

  string strAppName = HttpContext.Current.Request.ServerVariables["APPL_MD_PATH"];

  int i = strAppName.IndexOf ("Root/");

  strAppName = strAppName.Substring(i + 4) + "/";

  strCompleteAction = HttpContext.Current.Request.FilePath.Substring(strAppName.Length)+HttpContext.Current.Request.Url.Query;

  Is this because of the way I am using APPL_MD_PATH It only occurs on one deployment of many, so I think there may be something in IIS or elsewhere affecting this.

  The most difficult part is, I cant replicate the error locally.

  Any ideas would be appreciated!

  Arkiliknam

  
  
  

• Ron Gliane

  I am afraid that it would be extremely difficult to speculate what is happening without having a small sample reproducing the issue.
  
  You might want to try the newsgroups at http://msdn.microsoft.com/newsgroups/ for more feedback.
  
  Thanks,
    Ayman Shoukry
    VC++ Team
  
  

• Bernard Bout

  Do you have a sample to reproduce the issue

  Thanks,

  Ayman Shoukry

  VC++ Team

  
  
  

• rickm2005

  Hi. Would be really interested in more feedback on this issue. We are experiencing exactly the same random error on our server - if we kill the .Net process it goes away, only to come back again a few days later. I am wondering if it's related to a automatic Windows update We have clients being regularly affected by this on a regular basis. Can anyone suggest an approach
  
• Length cannot be less than zero. Parameter name: length