private static void AddInitial(ObservableCollection <OrgRoleDTO> source, RoleSelector ms)
{
if (source != null && source.Count > 0)
{
MultiSelectItem <OrgRoleDTO> tempSelction = new MultiSelectItem <OrgRoleDTO>()
{
Items = new ObservableCollection <OrgRoleDTO>()
{
source.First()
},
CurrentItem = source.First()
};
if (source.First().ChildRoles.Count > 0)
{
ms.SetValue(SelectionListProperty, new ObservableCollection <MultiSelectItem <OrgRoleDTO> >()
{
tempSelction, new MultiSelectItem <OrgRoleDTO>()
{
IsButton = true
}
});;
}
else
{
ms.SetValue(SelectionListProperty, new ObservableCollection <MultiSelectItem <OrgRoleDTO> >()
{
tempSelction
});;
}
}
}
private static void AddCommandHandler(object sender, ExecutedRoutedEventArgs e)
{
RoleSelector ms = sender as RoleSelector;
ms.ExecuteSelctionChangedCallBack = false;
ObservableCollection <MultiSelectItem <OrgRoleDTO> > tempSelecItems = ms.GetValue(SelectionListProperty) as ObservableCollection <MultiSelectItem <OrgRoleDTO> >;
OrgRoleDTO LastItem = tempSelecItems[tempSelecItems.Count - 2].CurrentItem;
if (LastItem != null)
{
MultiSelectItem <OrgRoleDTO> tempSelction = new MultiSelectItem <OrgRoleDTO>()
{
Items = new ObservableCollection <OrgRoleDTO>(LastItem.ChildRoles),
CurrentItem = LastItem.ChildRoles.First()
};
tempSelecItems.Insert(tempSelecItems.Count - 1, tempSelction);
ms.SetValue(SelectionProperty, LastItem.ChildRoles.First());
if (tempSelction.CurrentItem.ChildRoles.Count == 0)
{
tempSelecItems.RemoveAt(tempSelecItems.Count - 1);
}
ms.SetValue(SelectionListProperty, tempSelecItems);
}
ms.ExecuteSelctionChangedCallBack = true;
}
private static void RemoveCommandHandler(object sender, ExecutedRoutedEventArgs e)
{
RoleSelector ms = sender as RoleSelector;
ms.ExecuteSelctionChangedCallBack = false;
OrgRoleDTO param = e.Parameter as OrgRoleDTO;
if (param.ParentRoleId == 0)
{
return;
}
ObservableCollection <MultiSelectItem <OrgRoleDTO> > tempSelecItems = ms.GetValue(SelectionListProperty) as ObservableCollection <MultiSelectItem <OrgRoleDTO> >;
var removedItem = tempSelecItems.ToList().Where(item => item.CurrentItem.Id == param.Id).First();
int removedItemIndex = tempSelecItems.IndexOf(removedItem);
for (int i = removedItemIndex; i < tempSelecItems.Count;)
{
tempSelecItems.RemoveAt(i);
}
ms.SetValue(SelectionProperty, tempSelecItems.Last().CurrentItem);
if (tempSelecItems.Last().CurrentItem.ChildRoles.Count > 0)
{
tempSelecItems.Add(new MultiSelectItem <OrgRoleDTO>()
{
IsButton = true
});
}
ms.SetValue(SelectionListProperty, tempSelecItems);
ms.ExecuteSelctionChangedCallBack = true;
}
private static void SelectionChangedCommandHandler(object sender, ExecutedRoutedEventArgs e)
{
RoleSelector ms = sender as RoleSelector;
if (ms.IsHandlingSelectionChangedCmd)
{
return;
}
ms.ExecuteSelctionChangedCallBack = false;
ms.IsHandlingSelectionChangedCmd = true;
ObservableCollection <MultiSelectItem <OrgRoleDTO> > tempSelecItems = ms.GetValue(SelectionListProperty) as ObservableCollection <MultiSelectItem <OrgRoleDTO> >;
OrgRoleDTO cmdParam = e.Parameter as OrgRoleDTO;
var removedItem = tempSelecItems.ToList().Where(item => item.Items.Contains(cmdParam)).First();
int removedItemIndex = tempSelecItems.IndexOf(removedItem);
for (int i = removedItemIndex + 1; i < tempSelecItems.Count;)
{
tempSelecItems.RemoveAt(i);
}
if (cmdParam.ChildRoles.Count == 0)
{
if (tempSelecItems.Last().IsButton)
{
tempSelecItems.RemoveAt(tempSelecItems.Count - 1);
}
}
else
{
if (!tempSelecItems.Last().IsButton)
{
tempSelecItems.Add(new MultiSelectItem <OrgRoleDTO>()
{
IsButton = true
});
}
}
ms.SetValue(SelectionProperty, cmdParam);
ms.SetValue(SelectionListProperty, tempSelecItems);
ms.ExecuteSelctionChangedCallBack = true;
ms.IsHandlingSelectionChangedCmd = false;
//Selection
}
private static void SourceChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
RoleSelector ms = d as RoleSelector;
if (e.NewValue == null)
{
return;
}
AddInitial(e.NewValue as ObservableCollection <OrgRoleDTO>, ms);
ObservableCollection <MultiSelectItem <OrgRoleDTO> > tempSelecItems = ms.GetValue(SelectionListProperty) as ObservableCollection <MultiSelectItem <OrgRoleDTO> >;
ms.ExecuteSelctionChangedCallBack = true;
if (tempSelecItems == null)
{
return;
}
ms.SetValue(SelectionProperty, tempSelecItems[0].CurrentItem);
}
private static void SelectionChangedCallBack(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
RoleSelector ms = d as RoleSelector;
if (!ms.ExecuteSelctionChangedCallBack)
{
var x = ms.GetValue(SelectionProperty);
ms.ExecuteSelctionChangedCallBack = true;
return;
}
OrgRoleDTO newRole = e.NewValue as OrgRoleDTO;
ObservableCollection <OrgRoleDTO> sourceItems = ms.GetValue(SourceProperty) as ObservableCollection <OrgRoleDTO>;
if (sourceItems == null)
{
return;
}
ObservableCollection <MultiSelectItem <OrgRoleDTO> > tempSelctionList = ms.GetValue(SelectionListProperty) as ObservableCollection <MultiSelectItem <OrgRoleDTO> >;
if (tempSelctionList != null)
{
tempSelctionList.Clear();
}
if (newRole == null || newRole.Id == 0)
{
AddInitial(sourceItems, ms);
return;
}
OrgRoleDTO currentParentValue = e.NewValue as OrgRoleDTO;
//Clearing current selection list
ObservableCollection <MultiSelectItem <OrgRoleDTO> > tempSelectnList = ms.GetValue(SelectionListProperty) as ObservableCollection <MultiSelectItem <OrgRoleDTO> >;
if (tempSelectnList != null)
{
tempSelectnList.Clear();
}
//Fetching Orginal list
currentParentValue = (from role in sourceItems where role.Id == currentParentValue.Id select role).FirstOrDefault();
ObservableCollection <MultiSelectItem <OrgRoleDTO> > tempSelecItems = new ObservableCollection <MultiSelectItem <OrgRoleDTO> >();
while (currentParentValue != null)
{
List <OrgRoleDTO> currentParentSiblings = (from role in sourceItems where role.ParentRoleId == currentParentValue.ParentRoleId select role).ToList();
tempSelecItems.Add(new MultiSelectItem <OrgRoleDTO>()
{
CurrentItem = currentParentValue, IsButton = false, Items = new ObservableCollection <OrgRoleDTO>(currentParentSiblings)
});
currentParentValue = (from role in sourceItems where role.Id == currentParentValue.ParentRoleId select role).FirstOrDefault();
}
tempSelecItems = new ObservableCollection <MultiSelectItem <OrgRoleDTO> > (tempSelecItems.Reverse());
if (tempSelecItems.Last().CurrentItem.ChildRoles.Count > 0)
{
tempSelecItems.Add(new MultiSelectItem <OrgRoleDTO>()
{
IsButton = true
});
}
ms.SetValue(SelectionListProperty, tempSelecItems);
}
