Represents the structure, or schema, of a data field.
Assembly: System.Design (in System.Design.dll)
Use the class to get the properties of a data field using a DataColumn. You can discover the structure of a data field by using the following properties in this class: DataType, IsReadOnly, Length, Name, and IsUnique. In addition, you can use the Identity property to determine if a data column is set for AutoIncrement, or the PrimaryKey property to determine if a data column is in the primary key.
The class is used by custom control designer components to provide information about a data field at design time.
To examine the components of data using a DataSet, use the following classes.
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.