At the moment independent crosshair visibility is unsupported, although workarounds are possible: http://community.infragistics.com/forums/p/43071/236922.aspx#236922

Also, the crosshair always moves with the mouse, and cannot be frozen in place. You can get the item that the crosshair is closest to by subscribing to the SeriesCursorMouseMove event on the chart. This will provide you with the closest item, but not the exact axis values that the crosshair is at, if that is what you are after.

You can implement some further pieces to get at those values:

http://community.infragistics.com/forums/t/41666.aspx

The best thing might be to gather your requirements for the crosshairs and make a feature request. We are interested in hearing about how you want to use them. Hope this helps!

-Graham

I would suggest downloading the Silverlight Data Visualization samples from the product page. That would contain the sample library.

As for the online documentation, I am also unable to find information about crosshairs for the xamDataChart.

I will forward your post onto a developer to answer those specific xamDataChart questions.

Hello kesavag,

Our online documentation for xamDataChart can be found here.  There are also samples available at http://labs.infragistics.com/silverlightdv/2010.3/.  This sample in particular might be of interest to you, based on the title of the post.  It shows how to enable xamDataChart crosshairs.  You can view the code by clicking on the "< />" tab on the right.

Let me know if you have any other questions on this.

Elizabeth Albert
Localization Engineer