ViewStateException.UserAgent Property
.NET Framework (current version)
Gets the browser type of the HTTP request that resulted in a view-state exception.
Assembly: System.Web (in System.Web.dll)
This property returns the same value as the HTTP_USER_AGENT variable in the ServerVariables property.
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 ICollection LoadControlProperties(string serializedProperties) { ICollection controlProperties = null; // Create an ObjectStateFormatter to deserialize the properties. ObjectStateFormatter formatter = new ObjectStateFormatter(); try { // Call the Deserialize method. controlProperties = (ArrayList)formatter.Deserialize(serializedProperties); } catch (HttpException e) { ViewStateException vse = (ViewStateException)e.InnerException; String logMessage; 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) { HttpContext.Current.Response.Redirect("ErrorPage.aspx"); } else { throw e; } } return controlProperties; }
.NET Framework
Available since 2.0
Available since 2.0
Show: