<div>
Developer :
<asp:TextBox ID="txtDeveloper" runat="server"></asp:TextBox>
<input id="btnShow" type="button" value="Show Demo"
onclick = "ShowJsonDemo()" />
</div>
When
we click on the button btnShow, javaSript function ShowJsonDemo will execute which will make Ajax call
to GetJsonDemo Webmethod. In Javascript function we will pass textbox
value as parameter to webmethod using Json.
Client Script:
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js" type="text/javascript"></script>
<script type = "text/javascript">
function ShowJsonDemo() {
$.ajax({
type: "POST",
url: "jSON.aspx/GetJsonDemo",
data: '{developer: "' + $("#<%=txtDeveloper.ClientID%>")[0].value + '" }',
contentType: "application/json;
charset=utf-8",
dataType: "json",
success: OnSuccess,
failure: function (response) {
alert(response.d);
}
});
}
function OnSuccess(response) {
alert(response.d);
}
</script>
Code Behind:
[System.Web.Services.WebMethod]
public static string GetJsonDemo(string
developer)
{
return "First
Application developed by " + developer +" on : "
+ DateTime.Now.ToString();
}
Full Sample Code:
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js" type="text/javascript"></script>
<script type = "text/javascript">
function ShowJsonDemo() {
$.ajax({
type: "POST",
url: "jSON.aspx/GetJsonDemo",
data: '{developer: "' + $("#<%=txtDeveloper.ClientID%>")[0].value + '" }',
contentType: "application/json;
charset=utf-8",
dataType: "json",
success: OnSuccess,
failure: function (response) {
alert(response.d);
}
});
}
function OnSuccess(response) {
alert(response.d);
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
Developer :
<asp:TextBox ID="txtDeveloper" runat="server"></asp:TextBox>
<input id="btnShow" type="button" value="Show Demo"
onclick = "ShowJsonDemo()" />
</div>
</form>
</body>
</html>
ASP.NET Code File:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
public partial class jSON : System.Web.UI.Page
{
[System.Web.Services.WebMethod]
public static string GetJsonDemo(string
developer)
{
return "First
Application developed by " + developer +" on : "
+ DateTime.Now.ToString();
}
protected void Page_Load(object sender, EventArgs e)
{
}
}
