Invoking WCF service from Javascript
- by KhanS
I have a asp.net web application, and have some java script code in it. While calling the service I am getting the exception Service1 is undefined.
Below is my code.
Service:
namespace WebApplication2
{
// NOTE: You can use the "Rename" command on the "Refactor" menu to change the interface name "IService1" in both code and config file together.
[ServiceContract(Namespace="WCFServices")]
public interface IService1
{
[OperationContract]
string HelloWorld();
}
}
Implementation
namespace WebApplication2
{
// NOTE: You can use the "Rename" command on the "Refactor" menu to change the class name "Service1" in code, svc and config file together.
[ServiceBehavior(IncludeExceptionDetailInFaults = true)]
[AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]
public class Service1 : IService1
{
public string HelloWorld()
{
return "Hello world from service";
}
}
}
ASPX page:
<asp:Content ID="BodyContent" runat="server" ContentPlaceHolderID="MainContent">
<asp:ScriptManager ID="QNAScriptManager" runat="server">
<Services>
<asp:ServiceReference Path="~/Service1.svc" />
</Services>
<Scripts>
<asp:ScriptReference Path="~/Scripts/Questions.js" />
</Scripts>
</asp:ScriptManager>
</asp:Content>
Java Script
var ServiceProxy;
function pageLoad() {
ServiceProxy = new Service1();
ServiceProxy.set_defaultSucceededCallback(SucceededCallback);
}
function GetString() {
ServiceProxy.HelloWorld();
}
function SucceededCallback(result, userContext, methodName) {
var RsltElem = document.getElementById("Results");
RsltElem.innerHTML = result + " from " + methodName + ".";
alert("Msg received from service");
}
