Assembly: System.Data (in system.data.dll)
The ExtendedProperties property lets you store custom information with the object. For example, you may store a time when the data should be refreshed.
Extended properties must be of type String. Properties that are not of type String are not persisted when the DataColumn is written as XML.
The following example adds a custom property to the PropertyCollection returned by the ExtendedProperties property. The second example retrieves the custom property.
Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.