'Declaration Public Property AllowDBNull As Infragistics.Win.DefaultableBoolean
public Infragistics.Win.DefaultableBoolean AllowDBNull {get; set;}
Specifies whether the user is allowed to enter null values in the cells of this column. More precisely, setting this property to False will cause the associated property descriptor to not accept null and DBNull values. You can still set null values through code regardless of this property setting.
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, 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