I have recently upgraded to version v.2 and code that worked before no longer does.

Specifically, I have code in ArrowCreating that checked the origin and destination boxes to verify an arrow between the 2 is allowed.  I also have code in ArrowCreated to update the origin and destination boxes as well as updating some properties on the arrow.

All this worked in the previous version.

Now, it seems when ArrowCreating is fired there are a couple of problems:
1. Periodically, the origin and destination boxes are the same so e.confirm is being set because I do not allow the user to draw an arrow to itself.

2. If the origin and dest are not the same then I use a message box to ask the user what text to assign to the arrow.  The message box is displayed as before, but ArrowCreated is NOT being fired and the arrow doesn't actually get attached to the dest box.

In both cases above, the arrow is always drawn but when I click anywhere on the flowchart the arrow disappears.

What has changed????  I need to fix the problem ASAP.  If you have any suggestions please let me know.

I've found the static Control.MouseButtons property lets you check the state of mouse buttons. You can use it to find out if ArrowCreating has been raised for the last time for an arrow, after releasing the mouse button:

Private Sub fc_ArrowCreating(ByVal sender As Object, ByVal e As MindFusion.FlowChartX.AttachConfirmArgs) Handles fc.ArrowCreating
  If (Control.MouseButtons And MouseButtons.Left) = 0 Then
    MessageBox.Show("are you sure?")
  End If
End Sub
 

I hope that helps,
Stoyan