INullableValue

Microsoft .NET Framework, ASP.NET, Visual C# (CSharp, C Sharp, C-Sharp) Developer Training, Visual Studio

The System.INullableValue interface defines the fundamental value and existence properties for nullable types. However, it has been removed from .NET 2.0; because, nullables are now an intrinsic type in the CLR.

Syntax

Declaration syntax

[ComVisibleAttribute(true)] 
public interface INullableValue

Method syntax

The INullableValue interface defines the following methods:

• The HasValue method indicates whether a nullable type has a defined value.

bool HasValue { get; }

• The Value method gets the value of the nullable type.

Object Value { get; }

INullableValue work around

Instead, code like the following may be used:

if (t.IsGenericType() && 
   (t.GetGenericTypeDefinition() 
      == typeof(System.Nullable<>))
{ }