Zoom is slow

[wuttrain]

Hi,

 I am evaluating Chart FX for Visual Studio 2008 / WinForms and I noticed that when I load 50,000 rows (with 3 series) and tried to zoom it takes 3 to 7 seconds before the zoom box to appear when I try to click and drag the mouse.  This is the case when the chart is displaying the whole data.

When I load just around 5,000 rows with the same number of series, zooming works fine.

I'm on Win XP 32 SP2

 Is this is a possible issue if I decide to buy this product?

 Thanks!

 wuttrain

[wuttrain]

additional info:

  chart type is Bar and the Stacked property is set to Stack.Normal

[Frank]

I think the delay is caused by either the tooltip or the highlighting. With such a large number of points (dependin g on your chart settings such as marker shape, etc) it is generally a good idea to dissable tooltips and highlighting as it is not very usefull anyways (is hard to hover over a specific point when there are so many of them).

Try setting:

chart.Highlight.Enabled = false;

chart.ToolTips = false;

[wuttrain]

Thank you for your response. 

After adding the 2 lines you suggested, I can see the difference of the delay, but there is still delay which I can live with. After zooming the chart, is there a way I can enable the tooltips property again from the mouse events?

[Frank]

During a Zoom you will receive a UserZoom event. You can write code here to enable tootips and highlighting.

[wuttrain]

Thank you.