ViewStateException.Referer Property
.NET Framework (current version)
Gets the URL of the page that linked to the page where the view-state exception occurred.
Assembly: System.Web (in System.Web.dll)
This property returns the same value as the HTTP_REFERER variable in the ServerVariables property. The value is an empty string ("") if no previous request linked to the page.
The following code example demonstrates how to implement a method that deserializes a base64-encoded string and returns an ICollection collection of property settings. The Deserialize method can throw an HttpException exception that contains a ViewStateException object as an inner exception. The example shows how you can catch an HttpException exception and retrieve the properties from the ViewStateException object.
Private Function LoadControlProperties(ByVal serializedProperties As String) As ICollection Dim controlProperties As ICollection = Nothing ' Create an ObjectStateFormatter to deserialize the properties. Dim formatter As New ObjectStateFormatter() Try ' Call the Deserialize method. controlProperties = CType(formatter.Deserialize(serializedProperties), ArrayList) Catch e As HttpException Dim vse As ViewStateException Dim logMessage As String vse = e.InnerException logMessage = "ViewStateException. Path: " + vse.Path + Environment.NewLine logMessage += "PersistedState: " + vse.PersistedState + Environment.NewLine logMessage += "Referer: " + vse.Referer + Environment.NewLine logMessage += "UserAgent: " + vse.UserAgent + Environment.NewLine LogEvent(logMessage) If (vse.IsConnected) Then HttpContext.Current.Response.Redirect("ErrorPage.aspx") Else Throw e End If End Try Return controlProperties End Function 'LoadControlProperties
.NET Framework
Available since 2.0
Available since 2.0
Show: