Changed to using datagrid
add line button edgeviewmodel
Finally fixed the popup, all should be working now
merged with master
merged with master
Merge pull request #7 from plantener/addingItem

Adding item
Expand and contract now works. Will try to implement using lambda
Added some comments. Could not do it with lambda. Will try again another time
Merge pull request #8 from plantener/CollapseExpand

Collapse expand
Copy paste updated with master