WHAT IS IT?
This will be used to (AJAX) posting from java-script to any web-service or web-page in any DOMAIN and also get back the results from there.
HOW TO USE IT ?
simple use this function in your java script->>
simple use this function in your java script->>
function jsonp(url, callback, name, query)
{if (url.indexOf("?") > -1)
url += "&jsonp="
else
url += "?jsonp="
url += name + "&";
if (query)
url += query+ "&";
url += new Date().getTime().toString(); // prevent caching
var script = document.createElement("script");
script.setAttribute("src", url);
script.setAttribute("type", "text/javascript");
document.body.appendChild(script);
}
CALLING THIS FUNCTION from javascript :
jsonp("url of web page to be posted","", "function to be called back to receive result from the page","parameters to be passed");
eg:
jsonp('http://270.7.74.218/test/test.aspx', '', 'loadVideoPanel', "VID=" + VID + "&device=mobile" );
ON WEB SERVICE :(like on http://270.7.74.218/test/test.aspx):
protected void Page_Load(object sender, EventArgs e)
{
if (!string.IsNullOrEmpty(Request.QueryString["jsonp"]))
this.JsonPCallback();
}
public void JsonPCallback()
{
{
if (!string.IsNullOrEmpty(Request.QueryString["jsonp"]))
this.JsonPCallback();
}
public void JsonPCallback()
{
string hello ="hello";
string Callback = Request.QueryString["jsonp"];
Response.Write(Callback + "('" + hello + "');
}
//callback here is your function that should be present on your JavaScript
BACK ON JAVASCRIPT:
loadVideoPanel(result)
{
alert(result);
}
this is it
if u have any query plz let me know .......best O" lcuk
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