Hi there,

for standard controls, there is the Paint-event which should fire when the control is redrawn. Unfortunately the calendar control does not fire the paint event at any time.

For some custom drawings I want to make some precalculations which depend on the size of the control, the displayed time range and some other variables like the resource header width.

To prevent making these calculations for each and every custom drawn element I want to do these calculations before the control fires the first "Draw" or "ItemDrawing" event. Is there a way to achieve this?

Best regards and thanks for any help
Achim

Hi Meppy,

I was hoping I could prevent this, but it is a possibility of course. May I recommend for future releases of the control to integrate a "PrePaint" event?

Another thing I noticed during my tests is that the Paint/Draw events are fired even if there are no changes on the control - e.g. when the mouse hovers over the control. In scenarios with many elements and custom drawings this produces a heavy load on the CPU - maybe there is a way to reduce this?

Best regards
Achim

Check out this version:

https://mindfusion.eu/_temp/MindFusion.Scheduling.5.4.4.trial.zip

It adds two new events to the Calendar class - BeginItemDrawing and EndItemDrawing, signaling the beginning and the end of the item drawing phase.

Regards,
Meppy