Recovering zoom level after the post back.

[Ahmet]

Hello

 

When I zoom into my html chart by drawing a box, is there a property that I can use to get the zoom levels? 

In other words, let's say I zoomed into the graph by drawing a box, but I needed to do something else on the graph so I needed to post-back, graph is rebuilt but unzoomed. I need to be able to get the previous zoom levels so that I can recover the zoom. 

 

Thanks !

 

 

Thanks.

[Marin Bratanov]

Hi Ahmet,

I'd recommend using AJAX (partial page rendering) so that you don't dispose the chart.

If that's not an option, you can store the current state of the chart (shown in your previous threads "Determining the range of the X and Y axis after Zoom" and "Zooming out a chart programmatically"), and restore it after the postback by basically repeating the zoom operation/logic.

Regards,
Marin Bratanov
Progress Telerik