Progress bar while loading markers

2 posts, 0 answers
  1. Attila
    Attila avatar
    22 posts
    Member since:
    Oct 2016

    Posted 14 Feb 2019 Link to this post

    I have a kendoMap with dataSource transport read which loads the locations for the markers. Because it loads thousands of coordinates I would need a progress bar on the map to let the user know that the map is loading. Is this possible? I'm using Bing type map.


                center: centerCoordinates,
                zoom: zoomLevel,
                layerDefaults: {
                    bing: {
                        culture: "hu-HU"
                layers: [
                        type: "bing",
                        imagerySet: "road",
                        dataSource: {
                            transport: {
                                read: {
                                    url: url,
                                    type: 'GET',
                                    contentType: "application/json; charset=utf-8",
                                    dataType: 'json',
                                    data: json
                        type: "marker",
                        locationField: "LatLng",
                        titleField: "Name",
                        shape: "pin"
                markerActivate: function(e) {
                markerClick: function (e) {
                    //some more code exists here...
                zoomEnd: zoomEndControl,
                pan: panControl,
                panEnd: panEndControl


  2. Tsvetomir
    Tsvetomir avatar
    849 posts

    Posted 15 Feb 2019 Link to this post

    Hi Attila,

    The loading of a large amount of the data is a common scenario and we have created a how-to article which demonstrates how to show a loading indicator. More information can be found here:

    You could display a kendo progress using the requestStart and requestEnd event handlers. 

    Below you will find a small sample which demonstrates how to display a progress indicator while the data is loading:

    Kind regards,
    Progress Telerik
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