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Developer on focus
Anton Zamov is a dipl. engineer with more than 6 years of active professional
experience and many awards ...
read more>>
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How to call an ASP.NET web service from client script?
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A very simple web service to add 2 numbers:
<%@ WebService Language="C#" class=MyMath %>
using System;
using System.Web.Services;
public class MyMath {
[WebMethod]
public int add(int a, int b)
{
return a + b;
}
[WebMethod]
public int subtract(int a, int b)
{
return a - b;
}
}
A simple test page:
<html>
<head>
<script language="JavaScript">
var iCallID;
function init()
{
service.useService("ws2.asmx?WSDL","math");
}
function onmyresult()
{
if((event.result.error)&&(iCallID==event.result.id))
{
var xfaultcode = event.result.errorDetail.code;
var xfaultstring = event.result.errorDetail.string;
var xfaultsoap = event.result.errorDetail.raw;
// Add code to output error information here
alert("Error ");
}
else
{
service.innerHTML= "The method returned the result : " + event.result.value;
}
}
function tst(){
iCallID = service.math.callService("Add",ip1.value,ip2.value);
}
</script>
</head>
<body onload="init();">
<BR>
Enter first Value <input type='text' id='ip1'>
<BR>
Enter Second value <input type='text' id='ip2'>
<BR>
<button onclick=javascript:tst()>Call Add Web Method</button>
<div id="service" style="behavior:url(webservice.htc)" onresult="onmyresult();">
</div>
</body>
</html>
</html>
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About the author of this programming example or tutorial:
Anton Zamov is a software engineer with more than6 years
of active experience in web and software development and design.
Anton Zamov has extensive experience and broad knowledgebase
in C# and JAVA programming and has created a lot of
running e-commerce systems, portals and content management
systems using PHP and other web development technologies.
For more information about Anton Zamov, you may visit the personal web site of
Anton Zamov.
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