topic Re: how to stop event ? in ArcGIS JavaScript Maps SDK Questions

how to stop event ?

yanli — Tue, 30 Oct 2012 09:10:31 GMT

i have two buttons, name btn1,btn2
    btn1 's click function{

   dojo.connect(map,"onclick",identify);

}

btn2 's click function{

   dojo.connnect(toolbar,"onDrawEnd",QueryinExtent)
}

My question is :
when i click btn1 first,then click btn2,but the two events all happen!!!!!!
when I use toolbar draw event, how to stop the map's onclick event?

help help help !!!!!!!1

Re: how to stop event ?

__Rich_ — Tue, 30 Oct 2012 09:15:08 GMT

i have two buttons, name btn1,btn2
    btn1 's click function{

   dojo.connect(map,"onclick",identify);

}

btn2 's click function{

   dojo.connnect(toolbar,"onDrawEnd",QueryinExtent)
}

My question is :
when i click btn1 first,then click btn2,but the two events all happen!!!!!!
when I use toolbar draw event, how to stop the map's onclick event?

help help help !!!!!!!1

I may have misinterpreted your issue but I think you might want to use dojo.disconnect to ensure you're only 'listening' to one of those events at a time.

(think of it like this:- you want to be in either Identify 'mode' OR Draw 'mode' but not both at the same time i.e. your aim is to make them mutually exclusive)

Re: how to stop event ?

SrikanthNarra — Wed, 31 Oct 2012 06:09:22 GMT

I may have misinterpreted your issue but I think you might want to use dojo.disconnect to ensure you're only 'listening' to one of those events at a time.

(think of it like this:- you want to be in either Identify 'mode' OR Draw 'mode' but not both at the same time i.e. your aim is to make them mutually exclusive)

btn1 's click

function firstFunction(event){
event.preventDefault();
dojo.connect(map,"onclick",identify);

}

btn2 's click

function secondFunction(event){
event.preventDefault();
dojo.connnect(toolbar,"onDrawEnd",QueryinExtent)
}

Hope this may steer you to solve the problem

Re: how to stop event ?

ReneRubalcava — Wed, 31 Oct 2012 12:41:42 GMT

The link geos_rfleet provided has everything you need.
If you assign the connect method to a variable, you can disconnect it at a later time.
so

var handle = dojo.connect(item, 'event', function(){...});

then anywhere else in your code, you need to release that connected event

dojo.disconnect(handle);