This example has for file
WebForm1.aspx, WebForm1.js, WebForm1.aspx.vb
I recommend that you use a seperate JavaScript file for the Ajax and
other JavaScripts because of the following:
-- Faster download to the browser, the browser will cache the file
-- You can obfusicate the file
-- You can debug the file.
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WebForm1.aspx
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<%@ Page Language="vb" AutoEventWireup="false"
Codebehind="WebForm1.aspx.vb" Inherits="AjaxVB.WebForm1"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<title>WebForm1</title>
<meta name="GENERATOR" content="Microsoft Visual Studio .NET
7.1">
<meta name="CODE_LANGUAGE" content="Visual Basic .NET 7.1">
<meta name="vs_defaultClientScript" content="JavaScript">
<meta name="vs_targetSchema"
content="http://schemas.microsoft.com/intellisense/ie5";>
<script src="WebForm1.js" language="javascript"
type="text/javascript"></script>
</HEAD>
<BODY>
<form id="Form1" method="post" runat="server">
<button onclick="GetServerTime_Async();"
type="button">GetServerTime
Async</button>
<button onclick="GetServerTime_Sync();"
type="button">GetServerTime Sync </button>
<br>
<span id="spanTime"></span>
</form>
</BODY>
</HTML>
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Webform1.aspx.vb
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Private Sub Page_Load(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles MyBase.Load
'Put user code to initialize the page here
' Note the namespace of the application is AjaxVB
AjaxPro.Utility.RegisterTypeForAjax(GetType(AjaxVB.WebForm1))
End Sub
<AjaxPro.AjaxMethod()> _
Public Function GetServerTime() As String
Return DateTime.Now.ToString()
End Function
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Webform1.js
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function GetServerTime_Sync()
{
document.getElementById("spanTime").innerHTML =
AjaxVB.WebForm1.GetServerTime().value;
}
function GetServerTime_Async()
{
// Use asynchronize call
document.getElementById("spanTime").innerHTML = 'Getting time';
// NOTE Syntax <namespace>.<classname>.method (params,
callbackfunction)
AjaxVB.WebForm1.GetServerTime(GetServerTime_Async_Callback);
}
function GetServerTime_Async_Callback(response)
{
document.getElementById("spanTime").innerHTML = response.value;
}
Joseph Guadagno
http://www.josephguadagno.net
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