So after a user has dragged multiple images onto a canvas,
how do you get the source of an image at the users choosing? So if
they drag 3 pics onto the canvas and they pick the first image and
begin to move it, how do you get the source of that image to do
something else with it?
For the first one, you may use the "mouseDown" event, and
give some parameters which include the selected item(in datagrid,
it is selecteItem) and write a function to do the drag operation.
For the second one, you can declare a list oject(just
example) and set it as the value of canvas's "dataProvider", then
do something with the list object.