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I want to embed google map somewhat like this site
Regrob.com[^]
When you submit search for any location, the map shows pointer on all the places relevant to this search from database. When you click on any of the marked locations, a pop up box appears with a hyperlink kind of box named 'view more' and if you click on this link, it redirects the use to related webpage.

I have searched google to find code for something like this. This search has helped me with code to show multiple locations but i did not get any code to post link on map whereby user can be redirected to site depending on the marked location.

What i am looking for is dynamic display of all the listed places in a database in sql server and redirect to webpage by click on a marked location from map.

It is not impossible, as an example already exists on the site i stated above.

I need help urgently for the code/ guidelines/ tutorial/ any kind of help

Shall be grateful for this help
Posted
Updated 9-Mar-23 2:20am

1 solution

Here's some code cribbed from a project of mine. Basically add some HTML to the info window text - this can redirect users or call any JS function you want.

/**
 *  Object to hold global vaiables
 *  Set objGlobal.map = the Google Map when first initialized
 *  infos needn't actually be an array, as I only ever assign a single object to it (with index 0)
 *  but I never got round to rewriting this
 */
   var objGlobal = {
      map: null,
      infos: []
   }
   
/**
 * Simple ajax call to get spot locations form database
 * returns a JSON array
 */
   function getSpots() {
      $.ajax({
         url: "ashx/getSpots.ashx",
         cache: false,
         type: "get",
         async: false,
         success: function (response) {
            drawSpots(response);
         }
      });
   }

/**
 * Parses the JSON returned from above and draws the spots on the map
 * see below for an example of the JSON
 */   
   function drawSpots(response) {
      var jsonData = JSON.parse(response);
      var i;
      var pos;
      var mark;
      var html;
      var info;
      for (i = 0; i < jsonData.spots.length; i++) {
         html = '../images/spot.gif';
         pos = { lat: jsonData.spots[i].dLat, lng: jsonData.spots[i].dLong }
         mark = new google.maps.Marker({
            position: pos,
            map: objGlobal.map,
            // label: jsonData.spots[i].sName,
            title: jsonData.spots[i].sName,
            icon: html
         })

         html = '<p>' + jsonData.spots[i].sName + '</p><p><a class=\"spot\" onclick=\"whatever-you-want\">Click for whatever</a></p>';
         info = new google.maps.InfoWindow;

         google.maps.event.addListener(mark, 'mouseover', (function (mark, html, info) {
            return function () {
               /* close the previous info-window */
               closeInfo();
               info.setContent(html);
               info.open(objGlobal.map, mark);
               /* keep the handle, in order to close it on mouseout */
               objGlobal.infos[0] = info;
            };
         })(mark, html, info));

      }
   }

 /**
 * Closes the current info window on mouseout
 */  
   function closeInfo() {
      if (objGlobal.infos.length > 0) {
         /* detach the info-window from the marker ... undocumented in the API docs */
         objGlobal.infos[0].set("marker", null);
         /* and close it */
         objGlobal.infos[0].close();
         /* blank the array */
         objGlobal.infos.length = 0;
      }
   }

And the JSON is an array of spots, of the form:
{
  "spots": [
    {
      "ID": 31634,
      "sName": "Dundee, U.K.",
      "dLat": 56.45,
      "dLong": -3.03
    },
    {
      "ID": 33463,
      "sName": "Leeds Bradford, U.K.",
      "dLat": 53.87,
      "dLong": -1.66,
    }
  ]
}
 
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