''INullable'' '''


System.Data.SqlTypes (system.data.dll) interface

.NET system types can't contain the value null . However, database values can because this value can; a null value indicates the absence of a value. All SQLType s implement the INullable interface to enable them to contain the null value.

public interface INullable {
// Public Instance Properties
   public bool IsNull{get; } 

Implemented By

Multiple types

    Part I: ADO.NET Tutorial
    Part II: ADO.NET Core Classes
    Part III: API Quick Reference
    Chapter 34. The System.Data Namespace