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Infowindow for last Google Maps marker opens no matter which one clicked

I'm trying to run the google maps api in an ASP.NET MVC project, and I'm trying to add markers with info windows on every marker. Unfortunately, when I click on a marker, the info window on the last marker added opens, regardless of which marker I clicked.
Here is my code:
<script>
var map;
function initMap() {
map = new google.maps.Map(document.getElementById('map'), {
center: { lat: 39.5, lng: -98.35 },
zoom: 3
});
#foreach (var item in Model) {
<text>
var marker = new google.maps.Marker({
map: map,
position: { lat: #item.Lat, lng: #item.Lng },
title: '#item.Name'
});
marker.info = new google.maps.InfoWindow({
content: `<div id="content"> <h1 id="firstHeading" class="firstHeading">Test</h1> <div id="bodyContent">Test </div> </div>`
});
marker.addListener('click', function () {
marker.info.open(map, marker);
});
</text>
}
}
</script>

Sorry removed previous answer..
I just remembered I believe when I was doing my project I had to create a createWindow(marker, content) function and call it from the loop rather than actually creating my window inside of the loop directly
it is important that your eventlistener is created in this method also, not inside the loop

addListener in a for loop does not work right

Good evening,
I used the Google Maps API to add dynamically (for loop) 5 markers and infoboxes to a map. Now I want to set the listeners dynamically, I got the following code:
for(var i in partnerschools){
infoContent = 'BLABLA';
info = new google.maps.InfoWindow({
content: infoContent,
maxWidth: 230
});
infos.push(info);
var marker = new google.maps.Marker({
position: partnerschools[i].coordinates,
map: map,
animation: google.maps.Animation.DROP,
title: partnerschools[i].title,
});
markers.push(marker);
markers[i].addListener('click', function(){
infos[i].open(map, markers[i]);
});
}
The problem is that its always the same infobox that opens after clicking on one of these markers. Everything works really good until I try to add listeners to every marker, what am I doing wrong?

Solved
var addListener = function (i) {
google.maps.event.addListener(markers[i], 'click', function(){
infos[i].open(map, markers[i]);
});
}
addListener(i);

tooltip content undefined - google map

I added code for tool tip display when hovering the pointers in the google map.It is showing the tool tip but the content is "undefined". How can put the corresponding content related to the pointer into the tool tip box.The code is :
function initialize() {
var myOptions = {
zoom: 11,
center: new google.maps.LatLng(29.7,-95.4),
mapTypeId: google.maps.MapTypeId.ROADMAP
}
var map = new google.maps.Map(document.getElementById("salon_map"), myOptions);
var locations = [
__newmapdetls__
];
for (var i = 0; i < locations.length; i++) {
var location = locations[i];
var image = new google.maps.MarkerImage("http://chart.apis.google.com/chart?chst=d_map_pin_letter&chld="+location[3]+"|FF0000|000000",
new google.maps.Size(20, 34),
new google.maps.Point(0, 0),
new google.maps.Point(10, 34));
var myLatLng = new google.maps.LatLng(location[1], location[2]);
var marker = new google.maps.Marker({
position: myLatLng,
map: map,
icon: image,
title: location[0],
zIndex: location[3],
tooltip:"testinggg"+i
});
google.maps.event.addListener(marker, 'mouseover', function() {
infowindow1.open(map, this);
});
google.maps.event.addListener(marker, 'mouseout', function() {
infowindow1.close(map, this);
});
var infowindow1 = new google.maps.InfoWindow({
content: "'"+this.tooltip+"'"
});
}
}
Also url is : http://myshopsalon.com/find-a-shop-salon

A couple of things I noticed when looking at your page source:
Your page is loading both jQuery 1.10.1 and 1.7.2. But it isn't using noConflict(). So these two jQuery versions are stepping on each other.
You're also loading three copies of the Maps API: two copies of version 3 and a copy of the deprecated version 2 API.
Now to your question:
Use a closure to save your variables for each iteration of the marker loop. You can do this by simply calling a function in each iteration.
Instead of using this when you call infowindow.open(), use marker. (this and marker may be the same in this context, but use marker for consistency.)
The .close() method of an infowindow does not take any parameters.
Don't set the tooltip property when you create the marker. That may work, but it isn't documented that you can add your own properties in this fashion. Instead, simply use a local variable or parameter for tooltip.
I would create the infowindow before adding the event listeners. This will actually work fine in either order (since the event listeners are asynchronous), but it looks better to see the infowindow created first.
So, change your for loop to:
for (var i = 0; i < locations.length; i++) {
addMarker( locations[i], "testinggg" + i );
}
function addMarker( location, tooltip ) {
var image = new google.maps.MarkerImage(
"http://chart.apis.google.com/chart?chst=d_map_pin_letter&chld="+location[3]+"|FF0000|000000",
new google.maps.Size(20, 34),
new google.maps.Point(0, 0),
new google.maps.Point(10, 34)
);
var myLatLng = new google.maps.LatLng(location[1], location[2]);
var marker = new google.maps.Marker({
position: myLatLng,
map: map,
icon: image,
title: location[0],
zIndex: location[3]
});
var infowindow = new google.maps.InfoWindow({
content: "'" + tooltip + "'"
});
google.maps.event.addListener(marker, 'mouseover', function() {
infowindow.open(map, marker);
});
google.maps.event.addListener(marker, 'mouseout', function() {
infowindow.close();
});
}
That said, you may not like the result you get when you open an infowindow in response to moving the mouse over a marker. What if the marker is near the top of the window? The page will immediately move to make the infowindow fit on the screen, and now the marker won't be under the mouse any more.
You're already setting the title property when you create the marker. This should cause a normal browser tooltip to appear when the mouse is hovered over the marker, and it won't cause the map to move as the infowindow may do. Any reason not to just use that tooltip instead of the infowindow? You could just remove all of the infowindow code, or let the infowindow open on a click as it normally would.

Set the content of the infowindow onmouseover(you may access there the tooltip-property of the specific marker)
google.maps.event.addListener(marker, 'mouseover', function() {
infowindow1.setContent(this.tooltip);
infowindow1.open(map, this);
});
the initializing of infowindow1 move to outside the loop and leave the arguments empty.

Use the below code:
var infowindow1 = new google.maps.InfoWindow({
content: "'"+marker.tooltip+"'"
});
EDIETD:
var contentString = "testinggg"+i;
var infowindow1[i] = new google.maps.InfoWindow({
content: contentString
});
var marker = new google.maps.Marker({
position: myLatLng,
map: map,
icon: image,
title: location[0],
zIndex: location[3],
tooltip:"testinggg"+i
});
google.maps.event.addListener(marker, 'mouseover', function() {
infowindow1[i].open(map, marker);
});
google.maps.event.addListener(marker, 'mouseout', function() {
infowindow1[i].close(map, marker);
});
You can not get the property of marker in the info window. So you need to define the content in other variable.

Google Maps API v3 adding multiple markers w/ info windows w/ custom text

I am making a website over cyclists killed in Norway. For my project I have been using google maps api v3, but I have vague familiarity with javascript. You can see my result so far here: http://salamatstudios.com/googlemapstest/
Basicly I want to have multiple markers with infowindows on each one. Each one of the infowindows will contain:
Name (age),
Location,
Date of death,
Read more (which will be linked to a page on the website itself).
Like this example here: http://salamatstudios.com/bicycles/
I tried working with just one marker and infowindow and that worked just fine. When I want to add new markers with custom info windows on each I get stuck. At the moment I have 3 markers on different locations as seen in the first link, but none of the info windows appear when I click the marker..
How do I go around it to code it so the infowindows appear? And how can I have custom text in every infowindow? I am going to have about 30-40 markers on the map when it is done. All of the info windows will have different types of information.
function initialize() {
var mapOptions = {
center: new google.maps.LatLng(65.18303, 20.47852),
zoom: 5,
mapTypeId: google.maps.MapTypeId.ROADMAP,
// MAP CONTROLS (START)
mapTypeControl: true,
panControl: true,
panControlOptions: {
position: google.maps.ControlPosition.TOP_RIGHT
},
zoomControl: true,
zoomControlOptions: {
style: google.maps.ZoomControlStyle.LARGE,
position: google.maps.ControlPosition.LEFT_TOP
},
streetViewControl: true,
streetViewControlOptions: {
position: google.maps.ControlPosition.LEFT_TOP
},
// MAP CONTROLS (END)
};
var map = new google.maps.Map(document.getElementById("map"),
mapOptions);
// -------------- MARKER 1
var marker1 = new google.maps.Marker({
position: new google.maps.LatLng(59.96384, 11.04120),
map: map,
icon: 'img/bike5.png'
});
// MARKER 1'S INFO WINDOW
var infowindow1 = new google.maps.InfoWindow({
content: 'Name<br />Location<br />Date<br /><br />Read more(test link)'
});
// End of infowindow code
// Adding a click event to the marker
google.maps.event.addListener(marker1, 'click', function() {
// Calling the open method of the infoWindow
infowindow1.open(map, marker);
});
// -------- END OF 1st MARKER
// -------------- MARKER 2
var marker2 = new google.maps.Marker({
position: new google.maps.LatLng(60.63040, 8.56102),
map: map,
icon: 'img/bike5.png'
});
// MARKER 2'S INFO WINDOW
var infowindow2 = new google.maps.InfoWindow({
content: 'Name<br />Location<br />Date<br /><br />Read more(test link)'
});
// End of infowindow code
// Adding a click event to the marker
google.maps.event.addListener(marker2, 'click', function() {
// Calling the open method of the infoWindow
infowindow2.open(map, marker);
});
// -------- END OF 2nd MARKER
// -------------- MARKER 3
var marker3 = new google.maps.Marker({
position: new google.maps.LatLng(60.39126, 5.32205),
map: map,
icon: 'img/bike5.png'
});
// MARKER 3'S INFO WINDOW
var infowindow3 = new google.maps.InfoWindow({
content: 'Name<br />Location<br />Date<br /><br />Read more(test link)'
});
// End of infowindow code
// Adding a click event to the marker
google.maps.event.addListener(marker3, 'click', function() {
// Calling the open method of the infoWindow
infowindow3.open(map, marker);
});
// -------- END OF 3rd MARKER
}
google.maps.event.addDomListener(window, 'load', initialize);
Would be great if some could give me a clue. I've tried searching around a bit, but I can't really find my answer. Thanks in advance! :-)

You need to attach the infowindow to the correct markers. Currently they are all associated with "marker", which doesn't exist (and should cause an error message in the javascript console when you click on the markers).
Inside the click listener change:
infowindow1.open(map, marker);
infowindow2.open(map, marker);
infowindow3.open(map, marker);
To:
infowindow1.open(map, marker1);
infowindow2.open(map, marker2);
infowindow3.open(map, marker3);
working example

In addition to HoangHieu Answer when you use for loop it better to use it this way:
marker.info = new google.maps.InfoWindow({
content: 'some text'
});
google.maps.event.addListener(marker, 'click', function() {
this.info.open(map, this);
});

google.maps.event.addListener(marker1, 'click', function() {
// Calling the open method of the infoWindow
infowindow1.open(map, marker);
});
change to
google.maps.event.addListener(marker1, 'click', function() {
// Calling the open method of the infoWindow
infowindow1.open(map, this);
});

google map api v3, infowindow editable~

I want to make a google map infowindow.
the infowindow should be editable when some event is fired.
there is a question and answer about google map infowindow editable,
How do I make the info window editable in the Google Maps API?
but, this is about version 2.
any idea how to infowindow editable?
refrence~
this is my addMarket function
this.addMarker = function(location) {
var iconImg = 'signpost.png';
var marker = new google.maps.Marker({
position: location,
map: this.mMap,
icon: iconImg,
});
var infowindow = new google.maps.InfoWindow(
{
maxWidth: '50px',
content: "some text"
});
google.maps.event.addListener(marker, 'click', function() {
infowindow.open(this.mMap, marker);
});
infowindow.open(this.mMap, marker);
this.mMarkerArray.push(marker);
}

Well, you can pass any HTML into the InfoWindow's content property. So the solution for Google Maps v2 that you mentioned, also applies here:
var infowindow = new google.maps.InfoWindow(
{
maxWidth: '50px',
content: '<div contentEditable="true">changeme...</div>'
});