Zooming out a chart programmatically.

[Ahmet]

Hello

Is it possible to zoom out a chart programmatically without using the mouse scroll ? When I have 2 Y axis with two different series, sometimes the second series can be too high that I need to zoom out in order to see the second series.
I was wondering is there any programmatic way (Either on C# or Javascript) to zoom out a chart as soon as the chart is created.

Thanks.
Ahmet

[Marin Bratanov]

Hi Ahmet,

This is controlled by the min and max values of the axes (https://docs.telerik.com/devtools/aspnet-ajax/controls/htmlchart/functionality/zoom-pan-scroll#controlling-initial-view) so perhaps you can evaluate the data on the server and set the properties accordingly.

Such a method does not exist for the client, however. Perhaps you can change the min/max of the value axis and use .setOptions(), then .redraw() for the underlying kendo chart (see here: https://docs.telerik.com/kendo-ui/api/javascript/dataviz/ui/chart), but I cannot guarantee this will work as there is no such official API. You can add your idea in the Kendo UI UserVoice portal so it fhis gets a good traction in the community, its implementation will be considered: http://kendoui-feedback.telerik.com/forums/127393-kendo-ui-feedback. Adding a detailed description of you you believe it should behave, what arguments it should take, how it should handle different chart and axis types, would help in its evaluation.

Regards,
Marin Bratanov
Progress Telerik

[Marin Bratanov]

Just a quick follow up, our developers prepared the following example for you in case it will be helpful and it is what you are looking for: https://dojo.telerik.com/@SiliconSoul/IJOVoTeK.

--Marin