dear all ...

im new to dnn ....

i want to know when the httpcontext for the web application became nothing

because i see in the dnn source code check for that

the following code taken from  

class:FileSystemUtils Private Shared Function CheckValidFileName(ByVal strFileName As String) As StringDim retValue As String = Null.NullStringIf strFileName.IndexOf("'") > -1 Then' check if context is valid since this method is called from the scheduller tooIf Not HttpContext.Current Is Nothing ThenretValue = Localization.GetString("InvalidFileName")Else

NameSpace: DotNetNuke.Common.Utilities

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retValue = "InvalidFileName"End IfEnd If'ReturnReturn retValue

End Function