AspNetCompatibilityRequirementsAttribute.RequirementsMode AspNetCompatibilityRequirementsAttribute.RequirementsMode AspNetCompatibilityRequirementsAttribute.RequirementsMode AspNetCompatibilityRequirementsAttribute.RequirementsMode Property


Gets or sets the level of ASP.NET compatibility required by the service.

 property System::ServiceModel::Activation::AspNetCompatibilityRequirementsMode RequirementsMode { System::ServiceModel::Activation::AspNetCompatibilityRequirementsMode get(); void set(System::ServiceModel::Activation::AspNetCompatibilityRequirementsMode value); };
public System.ServiceModel.Activation.AspNetCompatibilityRequirementsMode RequirementsMode { get; set; }
member this.RequirementsMode : System.ServiceModel.Activation.AspNetCompatibilityRequirementsMode with get, set
Public Property RequirementsMode As AspNetCompatibilityRequirementsMode

Property Value



[AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Required)]
public class CalculatorService : ICalculatorSession
    double result
    {   // Store result in AspNet session.
            if (HttpContext.Current.Session["Result"] != null)
                return (double)HttpContext.Current.Session["Result"];
            return 0.0D;
            HttpContext.Current.Session["Result"] = value;

    public void Clear()

    public void AddTo(double n)
        result += n;

    public void SubtractFrom(double n)
        result -= n;

    public void MultiplyBy(double n)
        result *= n;

    public void DivideBy(double n)
        result /= n;

    public double Equals()
        return result;
    <AspNetCompatibilityRequirements(RequirementsMode:=AspNetCompatibilityRequirementsMode.Required)> _
    Public Class CalculatorService
        Implements ICalculatorSession

        Property Result() As Double
            ' Store result in AspNet Session.
                If (HttpContext.Current.Session("Result") Is Nothing) Then
                    Return 0D
                End If
                Return HttpContext.Current.Session("Result")
            End Get
            Set(ByVal value As Double)
                HttpContext.Current.Session("Result") = value
            End Set
        End Property

        Public Sub Clear() _
 Implements ICalculatorSession.Clear
            Result = 0D
        End Sub

        Public Sub AddTo(ByVal n As Double) _
Implements ICalculatorSession.AddTo
            Result += n
        End Sub

        Public Sub SubtractFrom(ByVal n As Double) _
Implements ICalculatorSession.SubtractFrom

            Result -= n
        End Sub

        Public Sub MultiplyBy(ByVal n As Double) _
Implements ICalculatorSession.MultiplyBy

            Result *= n
        End Sub

        Public Sub DivideBy(ByVal n As Double) _
Implements ICalculatorSession.DivideBy

            Result /= n
        End Sub

        Public Function Equal() As Double _
Implements ICalculatorSession.Equal

            Return Result
        End Function
    End Class


Use the RequirementsMode property to set the hosting mode in code. This can also be done by setting an application-level configuration flag aspNetCompatibilityEnabled. For more information, see <serviceHostingEnvironment>.

At runtime, applications can detect whether ASP.NET compatibility mode is enabled by checking the value of the static property AspNetCompatibilityEnabled.

Applies to