private static void CorrectCheckItemParent(DataCheckItemViewModel dataCheckItemViewModel, TreeViewItemViewModel dropTargetParent)
{
if (dataCheckItemViewModel.Parent != dropTargetParent)
{
dataCheckItemViewModel.Parent = dropTargetParent;
}
}
private static ModelIndex[] GetDragDropIndexes(ObservableCollection <TreeViewItemViewModel> parentChildren, DataCheckItemViewModel dropTarget,
DataCheckItemViewModel dataCheckItemViewModel)
{
var indexes = parentChildren
.Select((model, index) => new ModelIndex {
Model = model, Index = index
})
.Where(
treeViewItemModel =>
treeViewItemModel.Model.Equals(dropTarget) ||
treeViewItemModel.Model.Equals(dataCheckItemViewModel))
.ToArray();
return(indexes);
}
private static bool IsRootDataCheckItem(DataCheckItemViewModel dropTarget)
{
return(dropTarget.DataCheckItem.Id == -1);
}
private static TreeViewItemViewModel GetDropParent(bool isRootDataCheckItem, DataCheckItemViewModel dropTarget)
{
return(isRootDataCheckItem ? dropTarget : dropTarget.Parent);
}
