Code Snippet posted by:
Nakul.Lande | Posted on: 8/16/2012 | Category:
ASP.NET Codes | Views: 846 | Status:
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This article helps you to understand about how to give a call to XML Web service through ASP Web application and retrieve the values from the service
This article contains to major Part :-
1. .Net XML Web Service
2. ASP Web application calling the XML Web service.
The Web Service contain Two web-methos Sum() and Subtract() performing the relative operation.
using System.Diagnostics;
using System.Web;
using System.Web.Services;
namespace Test_ASP_Service1
{
public class Service1 : System.Web.Services.WebService
{
public Service1()
{
//CODEGEN: This call is required by the ASP.NET Web Services Designer
InitializeComponent();
}
private IContainer components = null;
private void InitializeComponent()
{}
protected override void Dispose( bool disposing )
{
if(disposing && components != null)
{ components.Dispose(); }
base.Dispose(disposing);
}
[WebMethod]
public string Sum(int val1,int val2)
{
return "The Sum of two number= "+(val1+val2);
}
[WebMethod]
public string Subtract(int val1,int val2)
{
return "The Subtraction of two number= "+ ( (val1>val2) ? (val1-val2):(val2-val1));
}
}
}
Next is the ASP Web application code calling the Web Service.
<html>
<head>
<title>Calling a webservice from classic ASP</title>
</head>
<body>
<%
If Request.ServerVariables("REQUEST_METHOD") = "POST" Then
Dim xmlhttp
Dim DataToSend
DataToSend="val1="&Request.Form("text1")&"&val2="&Request.Form("text2")
Dim postUrl
If Request.Form.Item("Operation")="Sum" Then
postUrl = "http://localhost/Test_ASP_Service1/Service1.asmx/Sum"
else
postUrl = "http://localhost/Test_ASP_Service1/Service1.asmx/Subtract"
end if
Set xmlhttp = server.Createobject("MSXML2.XMLHTTP")
xmlhttp.Open "POST",postUrl,false
xmlhttp.setRequestHeader "Content-Type","application/x-www-form-urlencoded"
xmlhttp.send DataToSend
Response.Write DataToSend & "<br>"
Response.Write(xmlhttp.responseText)
Else
Response.Write "Loading for first Time"
End If
%>
<FORM method=POST name="form1" ID="Form1">
Enter the two Values to perform Operation<BR>
<select name="Operation">Select Operation<option value="Sum">Sum</option><option value="Subtraction">Subtraction</option></select>
<INPUT type="text" name="text1" ID="Text1">
<INPUT type="text" name="text2" ID="Text2">
<BR><BR>
<INPUT type="submit" value="GO" name="submit1" ID="Submit1">
</form>
</body>
</html>
Nakul Lande