INullable Interface


All the System.Data.SqlTypes objects and structures implement the INullable interface.

Namespace:   System.Data.SqlTypes
Assembly:  System.Data (in System.Data.dll)

public interface INullable


Indicates whether a structure is null. This property is read-only.

SqlTypes can contain the value null and use database semantics for evaluating nulls. Nulls are used in a database to indicate an unknown or missing value.

.NET Framework
Available since 1.1
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