How to programmatically pan a ColumnSeries bar chart

Question

I have a bar chart with a Numerical y-axis and a Category x-axis.

Due to the large number of categories on the x-axis, I had to implement scrolling using the following behaviour:

<chart:SfChart.Behaviors>

<chart:ChartZoomPanBehavior EnablePanning="True"/>

</chart:SfChart.Behaviors>

and also setting the 'ZoomFactor' on the CategoryAxis appropriately.

This works great, and you can scroll along with the mouse or by touch. However I also need to scroll the chart programmatically. So for example if I have a ZoomFactor of 0.5, I can see the first 50% of the bars. I want to then programmatically show the second 50% of the bars (i.e. without using the mouse or touch).

I can't see how to do this, so any help would be appreciated.

Magesh Kumar Krishnan · Answer

Hi Mark,

Thanks for using Syncfusion products.

SfChart provides the API called ZoomPosition for panning, we can use this property for programmatic panning requirement. It takes the values from 0 to 1. You can define the ZoomPosition property as in below code snippet.

Code snippet:

<chart:CategoryAxis Name="primaryAxis" EnableScrollBar="False" ZoomFactor="0.3" ZoomPosition="0.5" FontSize="20">

</chart:CategoryAxis>

Please refer the link given below.

Link : http://help.syncfusion.com/ug/wpf/default.htm#!documents/zoomingandpanning.htm

We have prepared sample based on your requirement . please find the sample in the attachment.

Please let us know if you have any queries .

Thanks,

Magesh Kumar K

Attachment: ZoomPosition_af7f114a.zip