Hey.
Hi All. I need help with multiple return variables in an ajax method.
I can't seem to return the variables from my method. But, oddly,
the same method does return the server's data to the appropriate
elements on my page.
THE AJAX CALLBACK METHOD:
function getData_callback(res) { //0
try { // 1
var ds = res.value;
var min = '9:00am';
var max = '5:00pm';
if(ds==null){alert("dataset is empty");}
if(typeof(ds)!="object"){alert("dataset is not an
object");}
if(ds.Tables==null){alert("tables are empty");}
if(ds!=null && typeof(ds) == "object" && ds.Tables!=null) {
// 2
for(var r=0; r<=ds.Tables[0].Rows.length-1; r++) { // 3
[snip getting data from the database (and assign data
to elements on page) ...]
if (Comparable(Retrieved DB Time) < Comparable(min)) {
min = Retrieved DB Time;}
if (Comparable(Retrieved DB Time) > Comparable(max)) {
max = Retrieved DB Time;}
} //3 end r loop
} // 2 end if statement
} // 1 end try statement
catch(e){alert("getData_callback error: " + e.description);}
// end catch
return [min, max];
} // 0 end getData_callback function
THE METHOD USED TO CALL THE SERVER CODE:
Code:
function getData() {
try {
var response =
user_home.user_calendar.getData(getData_callback);
} // end try
catch(e){alert("getData() error: " + e.description);} // end
catch
return response;
}
THE ABOVE METHOD CALLED INSIDE THE ASP.NET CODE THAT FIRES THE AJAX
CODE:
Code:
function FetchCalendar()
{
try {
getData();
}catch(e){alert("Fetch Calendar
function error: " + e.description);}
}
when i assign getData() to a variable, say 'x', and alert it i get
"true" which means that the callback worked. when i try x[0] or x[1] i
get 'undefined'. so, i am doing something wrong when trying to return
variables min and max (return [min,max]).
any thoughts on why i can successfully get my getData_callback method
to assign the returned dataset to asp.net elements on the page but cant
return the variables min and max?
thanks.
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