Hi Jeren,
Thank you for contacting Syncfusion Support.
1) The property of NodeSymbol.Labels[n].SizeToNode is ineffectiveI am afraid that I am not able to reproduce this issue. Also I have created a simple sample to test this issue and it is available in the following link:
http://www.syncfusion.com/uploads/redirect.aspx?&team=support&file=SizeToNode-1820336408.zipPlease have a look at the above sample and if still the issue exists, could you please try reproducing in the above sample and send us the modified sample so that we could sort out the cause of the issue and provide you a solution?
2) The event NodeClick is workable when EnableNodeSelection is trueI am able to reproduce this issue. I will analyze more on this issue and will update you with more details on or before June 22nd, 2010.
And how about event NodeDoubleClick?NodeDoubleClick event will get fired if EnableNodeSelection is set to false.
Please let me know if you have any concerns.
Thanks,
Melba