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Syncfusion Feedback

IE 11 performance

Thread ID:





125312 Aug 8,2016 04:14 AM UTC Aug 9,2016 02:48 PM UTC JavaScript 2
Tags: ejTreeView
Gary Wadden
Asked On August 8, 2016 04:14 AM UTC

We have a performance issue using ejTreeView in IE 11, code excerpt below.  The SQL Server query returns the data in less than 1 second, 460 records, up to 4 levels.

Chrome loads the TreeView in less than 1 second.

IE11 takes at least 4 seconds.

Are you able to shed any light on what may be causing this?

function DisplayTreeView(data) {
                fields: {
                    //id: "EntityId", parentId: "ParentEntityId", text: "EntityName", expanded: false, imageUrl: "EntityImage", isChecked: "Checked", query: "EntityId",
                    id: "EntityId", parentId: "ParentEntityId", text: "EntityName", expanded: false, imageUrl: "EntityImage", query: "EntityId",
                    dataSource: data
                showCheckbox: true,
                enablePersistence: false
            var treeObj = DBS$("#DET-treeview").data("ejTreeView");
            treeObj.autoCheck = false;
            treeObj.autoCheck = true;

Gary Wadden
Replied On August 9, 2016 01:11 AM UTC

Further testing with IE 11 reveals:

  • with no check boxes it take about 1 sec
  • with unchecked check boxes about 3 secs
  • with checked check boxes 5 secs +

Piramanayagam Ramakrishnan [Syncfusion]
Replied On August 9, 2016 02:48 PM UTC

Hi Gary, 
We have checked with your query and created a new incident under your account to track the status of the feature reported in this forum. Please log on to our support website to check for further updates. 
Piramanayagam R 


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