Indicates whether this configuration element has been modified since it was last saved or loaded, when implemented in a derived class.
Assembly: System.Configuration (in System.Configuration.dll)
The method determines whether this ConfigurationElement object will be written to the configuration file when the Save method is called. If the return value is false, it is assumed that the configuration file represents the current state of the element.
By default, returns true after a property is set through the indexer to this ConfigurationElement object.
Override the method to provide custom indication of the state of this ConfigurationElement element.
The following example shows how to extend .
The method shown in the previous example is called when a configuration element is modified, as in the following example.
Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.