Nullable<T>::HasValue Property

 

Gets a value indicating whether the current Nullable<T> object has a valid value of its underlying type.

Namespace:   System
Assembly:  mscorlib (in mscorlib.dll)

public:
property bool HasValue {
	bool get();
}

Property Value

Type: System::Boolean

true if the current Nullable<T> object has a value; false if the current Nullable<T> object has no value.

If the HasValue property is true, the value of the current Nullable<T> object can be accessed with the Value property. Otherwise, attempting to access its value throws an InvalidOperationException exception.

The following example uses the HasValue property of a Nullable<Integer> object to determine whether it should display the object's Value property or its GetValueOrDefault property.

No code example is currently available or this language may not be supported.

Universal Windows Platform
Available since 8
.NET Framework
Available since 2.0
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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