topic Re: How do I Refresh Map/GrphicLayer after Remove element in ArcGIS JavaScript Maps SDK Questions

How do I Refresh Map/GrphicLayer after Remove element

DrorElgabsi — Sun, 03 Jul 2016 08:07:56 GMT

Hi,

I am using the 4.0 API,

trying to remove elements from the graphic layer some times leave the icon on the map...

how do I refresh it?

all the old examples that I sow saying do dataLayer.refresh(); or setExtent...

needless to say it didn't work!

Re: How do I Refresh Map/GrphicLayer after Remove element

SteveCole — Tue, 05 Jul 2016 15:29:07 GMT

I wonder if you have to use watch as explained in this thread. It's not exactly what you're trying to do but it is responding after a given event so it might still be applicable.

Re: How do I Refresh Map/GrphicLayer after Remove element

DrorElgabsi — Thu, 07 Jul 2016 09:04:22 GMT

Didn't help... no reload/refresh there

Re: How do I Refresh Map/GrphicLayer after Remove element

FC_Basson — Thu, 07 Jul 2016 09:27:24 GMT

I would think it refreshes automatically after something like:

graphicsLayer.remove(graphicsLayer.graphics.items)

Re: How do I Refresh Map/GrphicLayer after Remove element

DrorElgabsi — Thu, 07 Jul 2016 10:17:12 GMT

it doesn't...

or maybe i'm doing something worng...

view.popup.on("trigger-action", function (evt) {

if (evt.action.id === "closeEvent") {

eventsLayer.remove(view.popup.selectedFeature);

view.popup.visible = false;

}

else if (evt.action.id === "closeAllEvents") {

eventsLayer.removeAll();

view.popup.visible = false;

}

Re: How do I Refresh Map/GrphicLayer after Remove element

FC_Basson — Thu, 07 Jul 2016 10:22:14 GMT

If the graphic is not in the eventsLayer, then the remove function won't work.

You can try:

view.graphics.remove(view.popup.selectedFeature);

view.graphics.removeAll();

If you provide more code someone might be able to help.

Re: How do I Refresh Map/GrphicLayer after Remove element

DrorElgabsi — Thu, 07 Jul 2016 14:49:13 GMT

tried using view.graphics.remove(view.popup.selectedFeature); -> didn't work

my code is pretty straight forward...

create the GraphicLayer and add it to the map:

var dataLayer = new GraphicsLayer({

id: "dataLayer"

});

map.add(eventsLayer);

I'm adding graphics to the eventsLayer like that (using SignalR messaging):

function AddEvent(message,position)

{

var x = JSON.parse(position);

var data = JSON.parse(message);

ElementAtt = {

Name: data.Description,

Source: data.Source,

Triggers: data.Trigger,

Time: new Date().toLocaleString(),

Description: data.IdDescription,

Latitude: x.X,

Longitude: x.Y

};

point = new Point({

longitude: x.Y,

latitude: x.X

});

pointGraphic = new Graphic({

geometry: point,

symbol: eventMarkerSymbol,

id: data.Id,

attributes: ElementAtt,

popupTemplate: eventTemplate

});

eventsLayer.add(pointGraphic);

view.goTo(Point);

}

the problematic part....

removing elements(Using popup action):

view.popup.on("trigger-action", function (evt) {

if (evt.action.id === "closeEvent") {

eventsLayer.remove(view.popup.selectedFeature);

view.popup.visible = false;

}

else if (evt.action.id === "closeAllEvents") {

eventsLayer.removeAll();

view.popup.visible = false;

}

});

Re: How do I Refresh Map/GrphicLayer after Remove element

DrorElgabsi — Wed, 27 Jul 2016 05:07:14 GMT

for future reference the problem was that I used the Graphic id with my own id.

so removing it did not work