add

adds a new item to the tree

string add(object obj, [number index,string parentId] );

obj

objectthe item object index

numberoptional, the position that the item will be added to (zero-based numbering) parentId

stringoptional, the parent id

string

ID of the newly added item

//inserts a new item into the branch with id='root'
tree.data.add({id:"item10", value:"NewItem"}, 0, "root" );