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View Full Version : Pass a paramter to AJAX request handler??



gorilla1
10-19-2006, 11:12 PM
I am using ajax to get some data back from the server. I want to insert this data on my page at some element in the document (where depends on where the viewer clicked on the page). So I would like to remember what element on the page was clicked. Is there a way to pass a parameter to the function that will gain control when a response comes back from the server. I find that if I add a parameter to the following statement:
http_request.onreadystatechange = do_whatever;
like so:
http_request.onreadystatechange = do_whatever(parameter);
then I get nothing at all bacl from the server. Is there some way that I can pass my parameter to the function I have indicated for http_request.onreadystatechange?

G

BubikolRamios
10-20-2006, 06:49 AM
i guess you could try



http_request.onreadystatechange(parameter) = do_whatever(parameter);


but the logioc is that if u clicked different button, u get different response from server, so u dont need that parameter.

gorilla1
10-20-2006, 04:13 PM
BubikolRamios,

Thanks much for your response. I tried your suggestion, but I got an error indicating that onreadystatechange is not a function (which means it cannot recognize a parameter in the way you suggested passing it). As far as not needing a parameter because a different button is clicked and therefore a different response is coming back from the server -- no, the reason I need a parameter is that I have mutliple DOM elements with buttons on them and I need to remember which element generated the request so that on return from the server I can expand the particular element on the page (with the data I am getting back from the server). I am not simply doing an innerhtml rewrite of an element on the page, as many ajax applications do. Instead, I am expanding (appending to) a specific DOM element based on which one was clicked.

G

solanki_21
06-04-2009, 12:19 AM
Hi Gorilla ..
There is another way to pass a parameter ..

function AJAXHandler(param)
{
var vparam = param;
this.Handle = function()
{
alert(param);
}
}

var handler = new AJAXHandler("This is just a by pass");

http_request.onreadystatechange = handler.Handle();

Be Happy !!
Sandeep



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