Consume ASMX web Service in ASP.NET 4.0

In last tutorial, we learn How to Create ASMX web Service in ASP.NET 4.0. This tutorial guides how to consume it.

• Add new aspx page. Right click on Website and click 'Add New Item'. A new window will appear.

• Select 'Web Form' and name it according to your choice.

• Create new object of web service by writing following code:

MyFirstWebService svc = new MyFirstWebService();

• Call web service method by writing following code:

svc.CallmyName("Waqas Ali");

How to Create ASMX web Service in ASP.NET 4.0

Asmx Web Services are easy and simple to Create and use. This tutorial guides you how to write a ASMX Web Service step by step. 

• Open Visual studio and create new Website. 
• Right Click on Website and Click on 'Add New Item'.

• A New Window will Open, select 'Web Service' , name it and click 'Add'.

• When you click 'Add' Button, new files ( with .asmx and .cs extensions ) will be added to Project.
• Visual Studio will add some code in it.
• A default Web Method named 'Helloworld' will also be added in it.

• You have created ASMX Web Service Successfully.
• Replace 'Helloworld' Web Method with following code.

• This is Custom Web Method we created for our ASMX Web Service.

In next tutorial, we will learn how to use this Web Service.

Implement a Web Service in .NET

Explain with code sample how to Implement a Web Service in .NET?

Following is code in VBScript and C# both respectively.

In VBScript :

<%@ WebService Language="VBScript" Class="KmToMConvert" %>

Imports System

Imports System.Web.Services

Public Class KmToMConvert :Inherits WebService

   <WebMethod()> Public Function KilometerToMeter(ByVal Kilometer As String) As String 

         return (Kilometer * 1000)

         end function

end class

In C# :

[WebService(Namespace = http://tempuri.org/)]

[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]

[System.ComponentModel.ToolboxItem(false)]

// To allow this Web Service to be called from script, using ASP.NET AJAX, uncomment the following line. 

// [System.Web.Script.Services.ScriptService]

public class Service1 : System.Web.Services.WebService

{

     [WebMethod]

     public string HelloWorld()

     {

            return "Hello World";

     }

}