When dragging tasks, how do you make it snap to a specific unit? For example, I have my grid setup in 15 minute increments and I would like them to only be able to drag in 15 minute increments. I would also like the functionality to have a user change the increments and the dragging would update accordingly.
You can handle the TaskBarDragging event and change the NewDateTime property but you probably want to check the DragOperation to see what type of operation is being performed.
How are they doing it in the Samples Browser? I don't see a Task Bar Dragging Event. For example, under xamGantt/Display/Manual/Automatically Scheduled Tasks, if you try to drag an item in the middle of a day, it just snaps back to the start of the day and will not go to the next day unless you cross over into a new day and then it snaps to the beginning of the new day.