Event 1309, ASP.NET 4.0.30319.0

[rtiguy]

Our company has 22 hand-held Symbol MC9090 scanners that are constantly dropping connection. The server is showing the same error over and over. I am not an ASP.NET programmer, but I do need to get this fixed. Any help in pointing me in the right direction on this would be greatly appreciated.

Event code: 3005
Event message: An unhandled exception has occurred.
Event time: 3/31/2014 4:03:48 PM
Event time (UTC): 3/31/2014 9:03:48 PM
Event ID: 7b63e2252fe64cbe876a0213712e4f0c
Event sequence: 3985
Event occurrence: 17
Event detail code: 0

Application information:
Application domain: /LM/W3SVC/1/ROOT/DCMobile-1-130407336755117093
Trust level: Full
Application Virtual Path: /DCMobile
Application Path: C:\inetpub\wwwroot\DCMobile\
Machine name: zzzzzzz

Process information:
Process ID: 3104
Process name: w3wp.exe
Account name: NT AUTHORITY\SYSTEM

Exception information:
Exception type: FormatException
Exception message: Input string was not in a correct format.
at System.Number.ParseDouble(String value, NumberStyles options, NumberFormatInfo numfmt)
at DCMobile.MobileWebForms.frm7_validateFormInput()
at DCMobile.MobileWebForms.frm7_cmdPost_Click(Object sender, EventArgs e)
at System.Web.UI.MobileControls.Command.OnClick(Event Args e)
at System.Web.UI.MobileControls.Command.RaisePostBack Event(String argument)
at System.Web.UI.MobileControls.Command.System.Web.UI .IPostBackEventHandler.RaisePostBackEvent(String eventArgument)
at System.Web.UI.Page.RaisePostBackEvent(IPostBackEve ntHandler sourceControl, String eventArgument)
at System.Web.UI.MobileControls.MobilePage.RaisePostB ackEvent(IPostBackEventHandler sourceControl, String eventArgument)
at DCMobile.MobileWebForms.RaisePostBackEvent(IPostBa ckEventHandler sourceControl, String eventArgument)
at System.Web.UI.Page.RaisePostBackEvent(NameValueCol lection postData)
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)



Request information:
Request URL: http://zzzzzzz/dcmobile/index.aspx?__ufps=626984
Request path: /dcmobile/index.aspx
User host address: 192.168.11.89
User:
Is authenticated: False
Authentication Type:
Thread account name: NT AUTHORITY\SYSTEM

Thread information:
Thread ID: 31
Thread account name: NT AUTHORITY\SYSTEM
Is impersonating: False
Stack trace: at System.Number.ParseDouble(String value, NumberStyles options, NumberFormatInfo numfmt)
at DCMobile.MobileWebForms.frm7_validateFormInput()
at DCMobile.MobileWebForms.frm7_cmdPost_Click(Object sender, EventArgs e)
at System.Web.UI.MobileControls.Command.OnClick(Event Args e)
at System.Web.UI.MobileControls.Command.RaisePostBack Event(String argument)
at System.Web.UI.MobileControls.Command.System.Web.UI .IPostBackEventHandler.RaisePostBackEvent(String eventArgument)
at System.Web.UI.Page.RaisePostBackEvent(IPostBackEve ntHandler sourceControl, String eventArgument)
at System.Web.UI.MobileControls.MobilePage.RaisePostB ackEvent(IPostBackEventHandler sourceControl, String eventArgument)
at DCMobile.MobileWebForms.RaisePostBackEvent(IPostBa ckEventHandler sourceControl, String eventArgument)
at System.Web.UI.Page.RaisePostBackEvent(NameValueCol lection postData)
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

[Frinavale]

Based on the above error messages, your website (DCMobile) is crashing because users are not providing a number in a field that is supposed to be a number.

The function that is crashing is the frm7_validateFormInput() method.

To fix the problem, the developer should consider using the e TryParse method to parse the value provided by the user into a number. If this method fails, it will return False instead of throwing an exception that crashes the web application.

-Frinny