NodeBackgroundPaint Event Fires Very Frequently

[Manu Garg]

I have a form with 3 TreeviewAdv controls, and I noticed high CPU usage with this form. Upon analysis, it was found that NodeBackgroundPaint is being fired very frequently, even if user is not doing anything (idle state). Can somebody tell me when is this event fired and how to resolve this?

I am using this event to paint the background of the nodes as suggested in the help/documentation.

[Manu Garg]

Further anaylsis suggests that the following code triggers something that starts eating cpu cycles:

 e.BrushInfo = New Syncfusion.Drawing.BrushInfo(Color.Gray)

 e.Node.TextColor = Color.WhiteSmoke

this happens irrespective of no. of nodes in the treeviewadv.

Any ideas?

[Manu Garg]

Further breaking down into the problem, the e.Node.Textcolor leads to high CPU usage due to unknown reasons.

Solution: use e.Forecolor in the BeforeNodePaint event - it works fine.

[Senthil Kumaran Rajan]

Hi Manu,

Thank you for your update.

We are glad to know that, your requirement has been achieved. Please let us know if you need any further assistance, we will be happy to assist you.

Regards,
Senthil

[Senthil Kumaran Rajan]

Hi Manu,

Thank you for your update.

We are glad to know that, your requirement has been achieved. Please let us know if you need any further assistance, we will be happy to assist you.

Regards,
Senthil