I have a kendo grid in JSTL format where I'm trying to override a filter choice for date (making the filter look for the span of an entire day like in this example. But setting a simple hardcoded filtergives no results in the kendo grid, even when there are results matching the filter:

let startOfFilterDate = new Date(2000,1,1,0,0,0) 
let endOfFilterDate = new Date(2000,1,1,23,59,59) 
var filter = { 
  logic: "and", 
  filters: [ 
    { field: "date", operator: "gte", value: startOfFilterDate }, 
    { field: "date", operator: "lte", value: endOfFilterDate } 
  ] 
}; 
e.sender.dataSource.filter(filter);

I've tried putting in various places...

1) <kendo:dataSource-change></kendo:dataSource-change

2) <kendo:grid name="search-result-grid" ... filterable="true" columnMenu="true" columnMenuInit="doFilter">

And then my "doFilter" method is pretty much the same as the given example linked to above.

If I console.log the dataSource.filter, it shows that the filters are there. But the datasource is not being updated/refreshed with the filter for whatever reason.

Hi,

We're using a custom binding to set columns from the view model, but we're experiencing some trouble using nested columns and headerTemplate.

I set up a dojo example where you can see the problem. It will occur if you uncomment the headerAttributes that's commented out.

Anyone have any idea how to get this to work properly?

Dojo example: https://dojo.telerik.com/ApIGimiv/2

If so can you please provide some examples for 

Kendo Scheduler for Angular with custom dates range

multiple months examples 1,2,3 months view at same time.

(And does it support multiple months examples 1,2,3 months view at same time.)

Hi,

When using the detailInit event... I was wondering if it is possible to hide ONLY the child or details grid?

I tried this:

$('.k-grid-header').hide();

...but it will hide alll the headers of every grid on the html page.

And this:

$('#hiarchGrid .k-grid-header').hide();

but it just removes all the headers for the grid with the given id; both parent and details.

I have attached my code in text format.

I have a kendo dropdownlist with virtualization and a local array of objects used as the data source. I need to replace the datasource based on selections the user makes elsewhere on the page. The problem I'm having is that since it uses virtualization, I don't know when the datasource has finished being updated with setDataSource(newDataSource) and as such, sometimes when I try to set the new value, the new value isn't there. I don't want to use setTimeout because that is bad practice as it assumes it will take a certain amount of time to complete. The cascade event seems to only work after changing the value, not the dataSource. Is there a way to do something like this reliably: 

var newDataSourcce = getDataSource();
myDropdownList.setDataSource(newDataSource);
myDropdownList.value(100);

After Implmenting the Content Security Policy (CSP) in our application, various Kendo controls have stopped working. The CSP, blocks execution of inline scripts and since the Kendo controls are creating scripts while they render, CSP finds it as a threat and hence blocks its execution.

Below is a snapshot of the browser console error. All of the 5 errors are being thrown by kendo Controls.

When the Kendo Control, such as a grid, is rendered, a script tag is generated. Please check the below screenshot for reference.

Here, we have a grid, divIFAResults, when it is rendered on the screen, a script tag with Kendo.syncReady() is generated. The Kendo Grid relies on this script for its smooth execution, but our CSP blocks this script, inturn making the control unusable.

We have added 'unsafe-eval' as per the telerik docs for CSP. We are using the Kendo files hosted in our own project, not from CDN.

http://dojo.telerik.com/aGisuSuR/2

I am trying to hide and show error bar on a Kendo line chart based on when the mouse is over the line point, is it possible to do this? I tried using highlight, I can probably create a visual, but I just wanted to hide all the error bars and show only when the point is highlighted. I tried to set erroBar visibility false and set it to true on Highlight, that doesn't seem to work. Even if this worked, this would set the visibility of all error bars?, I just want to set it for only one point at a time, as showing all at once is will overlap error bars.

<!DOCTYPE html>
<html>
<head>
    <base href="http://demos.telerik.com/kendo-ui/line-charts/remote-data-binding">
    <style>html { font-size: 14px; font-family: Arial, Helvetica, sans-serif; }</style>
    <title></title>
    <link rel="stylesheet" href="https://kendo.cdn.telerik.com/2017.1.118/styles/kendo.common.min.css" />
    <link rel="stylesheet" href="https://kendo.cdn.telerik.com/2017.1.118/styles/kendo.default.min.css" />
    <link rel="stylesheet" href="https://kendo.cdn.telerik.com/2017.1.118/styles/kendo.default.mobile.min.css" />

    <script src="https://kendo.cdn.telerik.com/2017.1.118/js/jquery.min.js"></script>
    <script src="https://kendo.cdn.telerik.com/2017.1.118/js/kendo.all.min.js"></script>
</head>
<body>
<div id="example">
    <div class="demo-section k-content wide">
        <div id="chart"></div>
    </div>
    <script>
        function createChart() {
           var StrokeAnimation = kendo.drawing.Animation.extend({
             init: function(element) {
               kendo.drawing.Animation.fn.init.call(this);
               this.initialStroke = $.extend({}, element.options.stroke);
               this.color = element.options.fill.color;
               this.element = element;
              
             },
             step: function(pos) {
               this.element.stroke(this.color, this.initialStroke.width * pos * 5, 0.5);
             },
             
             reset: function() {
               this.element.options.set("stroke", this.initialStroke);
             }
           });
            $("#chart").kendoChart({
                dataSource: [
    {
        "country": "Spain",
        "year": "2008",
        "unit": "GWh",
        "solar": 2578,
        "hydro": 26112,
        "wind": 32203,
        "nuclear": 58973,
    "low":51000,
    "high":68000
    },
    {
        "country": "Spain",
        "year": "2007",
        "unit": "GWh",
        "solar": 508,
        "hydro": 30522,
        "wind": 27568,
        "nuclear": 55103,
     "low":52000,
    "high":60000
    },
    
],
                title: {
                    text: "Spain electricity production (GWh)"
                },
                legend: {
                    position: "top"
                },
                seriesDefaults: {
                    type: "line",
                    errorLowField: "low",
                    errorHighField: "high",
                    errorBars: {
                      highlight:{
                      line: {
                        width: 1,
                        dashType: "solid"
                       }
                      },
                    
                    visible: true,
                    endCaps: true,
                    width: 10,
                    color: "darkblue",
                    line: {
                        width: 1,
                        dashType: "solid"
                       }
                   },
                    highlight: {
                      errorBars: {
                        line: {
                          width: 1,
                          dashType: "solid"
                         }
                      }
                    }
                },
                series: [{
                    field: "nuclear",
                    name: "Nuclear"
                }, {
                    field: "hydro",
                    name: "Hydro"
                }, {
                    field: "wind",
                    name: "Wind"
                }],
                categoryAxis: {
                    field: "year",
                    labels: {
                        rotation: -90
                    },
                    crosshair: {
                        visible: false
                    }
                },
                valueAxis: {
                    labels: {
                        format: "N0"
                    },
                    majorUnit: 10000
                },
                tooltip: {
                    visible: false,
                    shared: false,
                    format: "N0"
                },
               
               render: function(e) {
                
                }
              
            });
        }

        $(document).ready(createChart);
        $(document).bind("kendo:skinChange", createChart);
    </script>
</div>


</body>
</html>

As the subject says, I'm looking for the recommended way to clone existing DateTimePicker controls at run time so that users can create as many controls as are necessary.

Our application allows users to clone rows of data that contain both DatePickers and DateTimePickers.  We recently upgraded from a previous version of Kendo UI to 2022.3.1109 and now the code that used to work does not.

If we don't execute the following, the look and feel is correct (but nothing happens when either the date or time controls are clicked):

If we do execute the above, the control appears as shown in the second row below...

...and the following error appears in the console:

I am able to create cloned fields if I write the appropriate HTML from scratch (e.g., embed a constant in the JavaScript function), but there's other logic that's fired that we need to take care of so that's not optimal.

I've also tried getting the options from the original control and applying them to the cloned control, but that also doesn't work, nor does attempting to destroy the control via $("#controlName").data("kendoDateTimePicker").destroy().  (My guess is that the underlying Kendo logic doesn't know about the cloned controls so the calls fail.)

Any help on what the best practice is would be greatly appreciated!

Hi,

I'm doing a quite simple implementation of saveAsPdf() for a grid. The actual PDF is fine, but the MetaData is a problem.

The PDF MetaData attributes for title, subject, keywords, author, creator and producer all contain strange/escape characters. 

Here is an example of what I get every time.

Title:          þÿ�M�o�d�e�l� �2�0�2�3
Subject:        þÿ
Keywords:       Ã¾Ã¿
Author:         Ã¾Ã¿
Creator:        þÿ�K�e�n�d�o� �U�I� �P�D�F� �G�e�n�e�r�a�t�o�r
Producer:       Ã¾Ã¿�K�e�n�d�o� �U�I� �P�D�F� �G�e�n�e�r�a�t�o�r

The only one of these attributes I'm actually setting is the Title. The rest are just whatever is deemed a default value (I assume).

This happens when I produce the PDF from Chrome, Firefox or Edge.

Here's an example of the PDF Options I am using.

{
    "title": "Model 2023",
    "fileName": "Model2023.pdf",
    "allPages": false,
    "avoidLinks": true,
    "paperSize": "A4",
    "margin": {
        "left": "1cm",
        "top": "1cm",
        "right": "1cm",
        "bottom": "1cm"
    },
    "scale": 0.4,
    "landscape": true,
    "multiPage": true,
    "repeatHeaders": true
}

I have tried multiPage as true and false, which made no difference. I have included pako_deflate. I thought it might be a font issue, but it's MetaData. Not what's actually output on the PDF.

To make it even more confusing for me, your demo works perfectly.  :)

FYI: Using version: 2022.3.913

If you can offer any ideas, I'd be grateful.

Thanks
John