Get value from AJAX using Javascript and ASP

Question

I am using this Ajax code. But I dont know how i will retrieve my value of value1 on my server-side asp using Javascript.

On my serverside I want to have something

Answer 1

//(javascript, ajax = xmlHttp)

if your response text is an array you can use this.

var myArray = eval(xmlHttp.responseText);

or if it is a just text you can use .

var value = xmlHttp.responseText

Another approach.This is just a template. If you use jquery, you can use this approach. i hope it solve your problem or give an idea.

html part:

<div id="willupdate"></div>
<div id="willupdate2"></div>

JQuery part:

 $(document).ready(function() {

getValue("serverurl",updateName)
getValue("serverurl",updateSurName)
 });

function updateName(name){
 $("#willupdate").text(name)
}


function updateSurName(name){
 $("#willupdate2").text(name)
}

function updateSurName(name){
 $("#willupdate").text(name)
}

function getValue(url,opt_onRecieved){
    if( !url || url == ""){
        alert("request url error");
        return;
    }

    $.ajax({
        type:"POST",
        url: url,
        dataType:"json",
        success: function(data){
            opt_onRecieved(data);

        }
    });
}

Answer 2

Client-side Javascript can't query server-based databases for obvious reasons. Based on what you appear to be doing, I would suggest you code an ASP which performs the actual query using VBA / C# / whatever, and you can then parse the results in your client-side ajax call as normal.

Answer 3

xmlHttp.send correctly writen

• It doesn't check that you have a 200 status before trying to deal with the data.
• It fails to encode the data to make sure it is URL safe

I would suggest using a library to handle XHR stuff, instead of reinventing the wheel. Microjs has a list of lots of small libraries if you aren't using one of the large ones (such as YUI or jQuery).

how do I get the values on the server-side using Javascript.

It is just query string data, so it will be in Request.QueryString.