I'm the new dev at Turner that is taking over the using of the Planner that "tomk" used to maintain. We are using version 4.4.1

We're using the Calendar to display the month in a date time picker when the dropdown is selected.

When Selection.Changed from OnMouseDown in the Calendar is fired we save the selected date and then dispose of the form which also disposes the containing Calendar. Disposing the Calendar nulls _delayEditTimer out.

At the end of the OnMouseDown it then calls AbortDelayedInplaceEdit() which access delayEditTimer giving a null ref.

System.NullReferenceException occurred
Message="Object reference not set to an instance of an object."
Source="Calendar"
StackTrace:
>
Calendar.dll!MindFusion.Scheduling.WinForms.Calendar.AbortDelayedInplaceEdit() Line 5247 + 0x8 bytes
C#

Calendar.dll!MindFusion.Scheduling.WinForms.Calendar.OnMouseDown(System.Windows.
Forms.MouseEventArgs e = {X = 107 Y = 59 Button = Left}) Line 1520 + 0xb bytes
C#

System.Windows.Forms.dll!System.Windows.Forms.Control.WmMouseDown(ref System.Windows.Forms.Message m, System.Windows.Forms.MouseButtons button, int clicks) + 0x101 bytes

System.Windows.Forms.dll!System.Windows.Forms.Control.WndProc(ref System.Windows.Forms.Message m) + 0x5c9 bytes

System.Windows.Forms.dll!System.Windows.Forms.Control.ControlNativeWindow.OnMess
age(ref System.Windows.Forms.Message m) + 0xd bytes

System.Windows.Forms.dll!System.Windows.Forms.Control.ControlNativeWindow.WndPro
c(ref System.Windows.Forms.Message m) + 0xbf bytes

System.Windows.Forms.dll!System.Windows.Forms.NativeWindow.Callback(System.IntPt
r hWnd, int msg = 513, System.IntPtr wparam, System.IntPtr lparam) + 0x58 bytes