Gets a value indicating whether the DataSourceNullValue property has been set.
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
Use this property to determine whether the DataSourceNullValue property has been explicitly set without having to store its default value for comparison. This is useful because the DataSourceNullValue property has a non-empty default value, unlike most other DataGridViewCellStyle properties, which have default values such as null, Empty, or NotSet.
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.