Duration.Subtraction(Duration, Duration) Operator

Definition

Namespace:

System.Windows

Assembly:

PresentationCore.dll

Subtracts the value of one instance of Duration from another.

public:
 static System::Windows::Duration operator -(System::Windows::Duration t1, System::Windows::Duration t2);

public static System.Windows.Duration operator - (System.Windows.Duration t1, System.Windows.Duration t2);

static member ( - ) : System.Windows.Duration * System.Windows.Duration -> System.Windows.Duration

Public Shared Operator - (t1 As Duration, t2 As Duration) As Duration

Parameters

t1

Duration

The first instance of Duration.

t2

Duration

The instance of Duration to subtract.

Returns

Duration

If both instances of Duration have values, an instance of Duration that represents the value of t1 minus t2. If t1 has a value of Forever and t2 has a value of TimeSpan, this method returns Forever. Otherwise this method returns null.

Remarks

The following calculations all return a value of Automatic.

• Forever minus Forever.

• TimeSpan minus Forever.

• TimeSpan minus Automatic.

• Forever minus Automatic.

• Automatic minus Automatic.

• Automatic minus Forever.

• Automatic minus TimeSpan.

The equivalent method for this operator is Duration.Subtract(Duration)