.NET Framework Class Library
ScriptServiceAttribute Class

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

Inheritance Hierarchy

Namespace:   System.Web.Script.Services
Assembly:  System.Web.Extensions (in System.Web.Extensions.dll)
<[%$TOPIC/bb360896_en-us_VS_110_2_0_0_0_0%]([%$TOPIC/bb360896_en-us_VS_110_2_0_0_0_1%].Class Or [%$TOPIC/bb360896_en-us_VS_110_2_0_0_0_2%].Interface)> _
Public NotInheritable Class ScriptServiceAttribute _
	Inherits [%$TOPIC/bb360896_en-us_VS_110_2_0_0_0_3%]
public sealed class ScriptServiceAttribute : [%$TOPIC/bb360896_en-us_VS_110_2_0_1_0_3%]
public ref class ScriptServiceAttribute sealed : public [%$TOPIC/bb360896_en-us_VS_110_2_0_2_0_3%]
type ScriptServiceAttribute =  
        inherit [%$TOPIC/bb360896_en-us_VS_110_2_0_3_0_4%] 

The ScriptServiceAttribute type exposes the following members.

Public method ScriptServiceAttributeInitializes a new instance of the ScriptServiceAttribute class.
Public property TypeIdWhen implemented in a derived class, gets a unique identifier for this Attribute. (Inherited from Attribute.)
Public method EqualsInfrastructure. Returns a value that indicates whether this instance is equal to a specified object. (Inherited from Attribute.)
Public method GetHashCodeReturns the hash code for this instance. (Inherited from Attribute.)
Public method GetTypeGets the Type of the current instance. (Inherited from Object.)
Public method IsDefaultAttributeWhen overridden in a derived class, indicates whether the value of this instance is the default value for the derived class. (Inherited from Attribute.)
Public method MatchWhen overridden in a derived class, returns a value that indicates whether this instance equals a specified object. (Inherited from Attribute.)
Public method ToStringReturns a string that represents the current object. (Inherited from Object.)
Explicit Interface Implementations
Explicit interface implemetation Private method _AttributeGetIDsOfNamesMaps a set of names to a corresponding set of dispatch identifiers. (Inherited from Attribute.)
Explicit interface implemetation Private method _AttributeGetTypeInfoRetrieves the type information for an object, which can be used to get the type information for an interface. (Inherited from Attribute.)
Explicit interface implemetation Private method _AttributeGetTypeInfoCountRetrieves the number of type information interfaces that an object provides (either 0 or 1). (Inherited from Attribute.)
Explicit interface implemetation Private method _AttributeInvokeProvides access to properties and methods exposed by an object. (Inherited from 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="VB" Class="SimpleWebService" %>

Imports System.Web
Imports System.Web.Services
Imports System.Web.Services.Protocols
Imports System.Web.Script.Services

<WebService(Namespace:="http://tempuri.org/")> _
<WebServiceBinding(ConformsTo:=WsiProfiles.BasicProfile1_1)> _
<ScriptService()> _
Public Class SimpleWebService
    Inherits System.Web.Services.WebService

    <WebMethod()> _
    Public Function GetServerTime() As String
        Dim serverTime As String = _
         String.Format("The current time is {0}.", DateTime.Now)
        Return serverTime
    End Function

End Class
<%@ 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)]
public class SimpleWebService : System.Web.Services.WebService 

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

        return serverTime;

Version Information

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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

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