'Declaration
Public Overridable Property AJAXResponseError As String
public virtual string AJAXResponseError {get; set;}
Remarks
Default alert message can be canceled. Second param in handler is instance of AJAXResponseErrorEventArgs class, which provides information about response objects.
Requirements
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2