Chart Refresh / Redraw

[Riz]

Hello,

I am trying to refresh or redraw the chart, problem is when I use;

this.chartArea.DataSeries.Clear();

it clear the chart and XY axes are removed which looks quite ugly.

My goals are as follows;

1) Refresh chart with new data after 1 minute 

2) after every 15 seconds refresh / redraw the chart to gain clients attention.

please advice how to achieve this

Thank you very much 

[Dwight]

Hello Joe,

I have tested removing data series, then adding them back and it works fine. Can you, please, give us more details on how you remove and insert data series so that the X and Y axes get removed?

Sincerely yours,
Evtim
the Telerik team

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[James]

I am dealing with a similar issue.  Even though the chart redraws when a new data series returns, the original drawing of the chart stays on the page as well.  You don't notice it unless you change the layout and then you see multiple charts on the screen in their new position and the original position.  I can't expect the user to refresh the screen everytime the series changes or they want the chart layout to change.  The number of charts drawn corresponds with the number of layouts you can choose in rapid succession before the original chart can redraw.  I don't expect that the user is going to start choosing layouts in rapid succession but I need to be able to handle it if they do.

[Yavor]

Hello James,

When there are no items, the no data template will be shown. Thus, you can bind the control to a smaller collection, or customize the no data string, to alert the user that there is no data.
Alternatively, you can show a separate image/textblock instead of the chart, to alert the user of the change.
I hope that one of these options is suitable for you.

All the best,
Yavor
the Telerik team