Multilevel WPF Tree - sql

Question

I have this Tables :
iAccess:
-----------------
Id
UserRef
GroupRef
ActionRef
HasAccess
HasDetail
iAction
---------------------
Id
WindowsRef
ActionName
ActionPName
DisplayIndex
CanHasDetail
iWindow
-------------------
Id
OwnerRef
WinName
WinPName
DisplayIndex
iUser
------------------------
Id
GroupRef
LoginName
Password
IsEnable
HasFullAccess
GenerationDate
Image
How can I show the following resut in WPF Treeview
Expected Result :
-LoginName1
-WinName1
-ActionName1
-ActionName2
-WinName2
-ActionName1

Answer 1

you can use HierarchicalDataTemplate
<TreeView x:Name="MainTreeView" HorizontalAlignment="Stretch" Margin="10" VerticalAlignment="Stretch" ItemsSource="{Binding Departments}">
<TreeView.ItemTemplate>
<HierarchicalDataTemplate ItemsSource="{Binding Positions}" DataType="{x:Type VM:Department}">
<Label Content="{Binding DepartmentName}"/>
<HierarchicalDataTemplate.ItemTemplate>
<HierarchicalDataTemplate ItemsSource="{Binding Employees}" DataType="{x:Type VM:Position}">
<Label Content="{Binding PositionName}"/>
<HierarchicalDataTemplate.ItemTemplate>
<DataTemplate DataType="{x:Type VM:Employee}">
<Label Content="{Binding EmployeeName}"/>
</DataTemplate>
</HierarchicalDataTemplate.ItemTemplate>
</HierarchicalDataTemplate>
</HierarchicalDataTemplate.ItemTemplate>
</HierarchicalDataTemplate>
</TreeView.ItemTemplate>
</TreeView>
Position class:
public class Position : ViewModelBase
{
private List<Employee> employees;
public Position(string positionname)
{
PositionName = positionname;
employees = new List<Employee>()
{
new Employee("Employee1"),
new Employee("Employee2"),
new Employee("Employee3")
};
}
public List<Employee> Employees
{
get
{
return employees;
}
set
{
employees = value;
OnPropertyChanged("Employees");
}
}
public string PositionName
{
get;
set;
}
}
Department class
public class Department : ViewModelBase
{
private List<Position> positions;
public Department(string depname)
{
DepartmentName = depname;
positions = new List<Position>()
{
new Position("TL"),
new Position("PM")
};
}
public List<Position> Positions
{
get
{
return positions;
}
set
{
positions = value;
OnPropertyChanged("Positions");
}
}
public string DepartmentName
{
get;
set;
}
}
MainViewModel class:
public class MainWindowViewModel : ViewModelBase
{
private List<Department> departments;
public MainWindowViewModel()
{
Departments = new List<Department>()
{
new Department("DotNet"),
new Department("PHP")
};
}
public List<Department> Departments
{
get
{
return departments;
}
set
{
departments = value;
OnPropertyChanged("Departments");
}
}
}
you can read full article in http://www.c-sharpcorner.com/article/populating-hierarchical-data-in-treeview-in-wpf-using-mvvm/