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WebGetAttribute Class

Indicates that a service operation is logically a retrieval operation and that it can be called by the Web programming model.

Namespace:  System.ServiceModel.Web
Assembly:  System.ServiceModel.Web (in System.ServiceModel.Web.dll)

[AttributeUsageAttribute(AttributeTargets.Method)]
public sealed class WebGetAttribute : Attribute, 
	IOperationBehavior, IWmiInstanceProvider

The WebGetAttribute attribute is applied to a service operation in addition to the OperationContractAttribute and associates the operation with a UriTemplate as well as the HTTP protocol Get verb. The association with HTTP Get verb means that the operation is used to retrieve information from the service. The WebGetAttribute attribute is a passive operation behavior (the IOperationBehavior methods do nothing) that adds metadata to the operation description. Applying the WebGetAttribute attribute to a service operation has no effect unless a behavior that is looking for this metadata in the operation description (such as WebHttpBehavior) is added to the service's behavior collection.

Service operations with the WebGetAttribute attribute applied should be logical retrieval operations. The HTTP GET method is associated with all operations marked with the WebGetAttribute attribute.

The following example shows how to use the WebGetAttribute attribute.

[ServiceContract]
public interface ICalculator
{
    [OperationContract]
    [WebGet]
    long Add(long x, long y);

    [OperationContract]
    [WebGet(UriTemplate = "Sub?x={x}&y={y}")]
    long Subtract(long x, long y);

    [OperationContract]
    [WebGet(UriTemplate = "Mult?x={x}&y={y}", BodyStyle = WebMessageBodyStyle.Bare)]
    long Multiply(long x, long y);

    [OperationContract]
    [WebGet(UriTemplate = "Div?x={x}&y={y}", RequestFormat = WebMessageFormat.Xml)]
    long Divide(long x, long y);

    [OperationContract]
    [WebGet(ResponseFormat= WebMessageFormat.Json)]
    long Mod(long x, long y);
}

System.Object
  System.Attribute
    System.ServiceModel.Web.WebGetAttribute

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5

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