Last Updated: 21 Jan 2020 08:16 by ADMIN
Created by: IT Valk Solutions
Comments: 2
Category: Chart
Type: Feature Request

01 @(Html.Kendo().Chart<Model>() 02 .Name("Donut_" + @customId) 03 .DataSource(dataSource => dataSource 04 .Custom() 05 .Type("aspnetmvc-ajax") 06 .Transport(transport => transport 07 .Read(read => read. 08 Action("Data_Read", "Data") 09 )
10 .Refresh(refresh => refresh.
11 Interval(5000)
12 )
13 ) 14 .Events(events => events 15 .Error("onDonutError") 16 ) 17 .Schema(schema => schema 18 .Data("Data") 19 .Total("Total") 20 .Errors("Errors") 21 ) 22 ) 23 .Series(series => { series 24 .Donut( 25 model => model.Value, 26 model => model.Description, 27 model => model.Color, 28 null 29 ) 30 }) 31 .Events(events => events 32 .SeriesHover("onDonutSeriesHover") 33 .Render("onDonutRender") 34 ) 35 )

I would like to have an option to set an interval for refreshing the data in my chart (or any other control that uses a datasource). At this moment, I need to use the jQuery setInterval function to refresh the chart, but when using a dynamic range of controls, I don't want to write a refresh for every control on my page.

This can be done in two ways. First, a parameter in the wrapper that takes an int as value (for instance 5000 for 5 seconds). Second, an event that hooks into a JavaScript function, passing the id and type of the control. The first option is absolutely preferred (as shown in the code on line 10).

If you're declining this request, please advise on the best practice to handle this situation with regard to dynamic dashboards.

Pending Review
Last Updated: 07 Dec 2018 08:30 by ADMIN
Created by: Sudipto
Comments: 7
Category: Chart
Type: Feature Request


In our project, there's a newly revamped application and Kendo UI has been used for first time.

The Home page of our application has a bar graph and a donut graph. 

I am from Test Automation team and run OpenTest-Selenium tests on Chrome and IE browsers.

The problem described below applies to both, so to keep it simple I will describe for only the bar graph.


Reference isolated application: 


Problem Description Title: UI based automated tests run on Chrome succeed, but fail on IE for Kendo Bar Chart

Troubleshooting performed: In both browsers, we looked for the click event using the Browser Inspector

Observation: The click event is present in Chrome, but not in IE


I found an article in your site:


Is this the reason that you've no exposed this event specifically in IE?

(My understanding from this is that the Click event can be exposed, but is currently not done in the interest of performance).


Could you share any data on what is the slowness with how much data, so I could share it with our Dev team.

Because the number of bars in our application is only 4 (always) and volume of data gets reflected in the height of the bars.






Last Updated: 23 Jan 2020 08:05 by ADMIN
Created by: Derek
Comments: 1
Category: Chart
Type: Feature Request
1. Add method CategoricalErrorBarsBuilder.Field(string) that will indicate the name of the field containing the value for the error bar.  This value would be a relative difference (not absolute high/low).  There is a "Fields(string,string)" method but "Field(string)" for difference value is missing.

2. Provide way to render half (top or bottom) of error bar.  For example, if only CategoricalErrorBarsBuilder.HighField(string) is assigned, then render top half of error bar.  Or maybe some other setting.  Often it is desirable to show only the side of the error bar that is above (or below, if the bar represents a negative value) the bar marker so that the other half is not rendered within the bar marker.