The topic you requested is included in another documentation set. For convenience, it's displayed below. Choose Switch to see the topic in its original location.
DataColumn.AllowDBNull Property
.NET Framework (current version)
Gets or sets a value that indicates whether null values are allowed in this column for rows that belong to the table.
Assembly: System.Data (in System.Data.dll)
Property Value
Type: System.Booleantrue if null values values are allowed; otherwise, false. The default is true.
The following example creates a new DataColumn and sets its AllowDBNull property to true.
.NET Framework
Available since 1.1
Available since 1.1
Show: