Objectives

This tutorial demonstrates the basic function of WebFlyPostBackManager to retrieve simple-type results from a WebForm (aspx) page.

Drag WebFlyPostBackManager from Toolbox into a WebForm page.

Create a WebForm in the same directory and named it "WebFormListener.aspx". Add the following code in code behind:

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using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using ISNet.WebUI.WebDesktop;

public partial class Samples_WebFlyPostbackManager_WebFormListener : System.Web.UI.Page
{
    WebFlyPostBackListener listener = null;

    protected void Page_Load(object sender, EventArgs e)
    {
        listener = new WebFlyPostBackListener(this);
    }

    [WebFlyPostBackMethod()]
    public string HelloWorld()
    {
        return "Hello World";
    }
}

Set ServiceType to WebForm and ServiceUrl to WebFormListener.aspx (The URL path of the page) in the properties box.
Add a HTML button and name it "Call WebForm Service".
Add the "OnResponseSuccess" Client Side Events of WebFlyPostBackManager.

Add the following code in the client-side:

Script

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<script language="javascript">
function DoClick()
{
    var FPBMan = ISGetObject("WebFlyPostBackManager1");
                                               
    // call the HelloWorld method of the specified ServiceUrl
    FPBMan.HelloWorld();
}
                       
function WebFlyPostBackManager1_OnResponseSuccess(controlId, methodName, returnValue)
{
    alert("The return value of HelloWorld method is: " + returnValue);                                     
}
</script>

Invoke DoClick() function in onclick event like the following:

Script	Copy Code
<input id="Button1" type="button" value="Call WebForm Service" onclick="DoClick()"/>

When you click the button, it will retrieve the simple type result from the defined WebForm.
Run the project and you will see something like following:

Intersoft WebDesktop Documentation
Retrieving simple types using WebForm service
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