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ScriptServiceAttribute Class

Indicates that a Web service can be invoked from script. This class cannot be inherited.

Namespace:  System.Web.Script.Services
Assembly:  System.Web.Extensions (in System.Web.Extensions.dll)

[AttributeUsageAttribute(AttributeTargets.Class|AttributeTargets.Interface)]
[AspNetHostingPermissionAttribute(SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
public sealed class ScriptServiceAttribute : Attribute

To invoke a Web service method from ECMAScript (JavaScript), you must apply the ScriptServiceAttribute attribute to the related Web service class. When you apply ScriptServiceAttribute to a Web service class definition that contains one or more methods with WebMethodAttribute applied, the proxy generation script creates a proxy object that corresponds to the Web service class.

For more information about using attributes, see Extending Metadata Using Attributes.

The following example demonstrates how to apply ScriptServiceAttribute to the Web service class definition so that its methods can be called from client script.

<%@ WebService Language="C#" Class="SimpleWebService" %>

using System;
using System.Web;
using System.Web.Services;
using System.Web.Services.Protocols;
using System.Web.Script.Services;

[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
[ScriptService]
public class SimpleWebService : System.Web.Services.WebService 
{

    [WebMethod]
    public string GetServerTime() 
    {
        string serverTime =
            String.Format("The current time is {0}.", DateTime.Now);

        return serverTime;
    }

}

System.Object
  System.Attribute
    System.Web.Script.Services.ScriptServiceAttribute

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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