diff --git a/StructureHelper/Windows/MainGraph/FormulaViewModel.cs b/StructureHelper/Windows/MainGraph/FormulaViewModel.cs
index b2a3e64..a511732 100644
--- a/StructureHelper/Windows/MainGraph/FormulaViewModel.cs
+++ b/StructureHelper/Windows/MainGraph/FormulaViewModel.cs
@@ -82,6 +82,7 @@ namespace StructureHelper.Windows.MainGraph
         public FormulaViewModel(FormulaFunction formulaFunction)
         {
             Function = formulaFunction;
+            Formula = formulaFunction.Formula;
             Name = Function.Name;
             Description = Function.Description;
         }
diff --git a/StructureHelper/Windows/MainGraph/GraphView.xaml b/StructureHelper/Windows/MainGraph/GraphView.xaml
index cfb841b..1806f76 100644
--- a/StructureHelper/Windows/MainGraph/GraphView.xaml
+++ b/StructureHelper/Windows/MainGraph/GraphView.xaml
@@ -1,4 +1,5 @@
 <Window x:Class="StructureHelper.Windows.MainGraph.GraphView"
+        x:Name="GraphView_win"
         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
         xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
@@ -84,6 +85,7 @@
                     Background="LightGreen"/>
             <Button Grid.Column="1" Grid.Row="0" Margin="5" Content="Edit"
                     Command="{Binding EditCommand}"
+                    CommandParameter="{Binding ElementName=GraphView_win}"
                     IsEnabled="{Binding SelectedFuntion.IsUser, UpdateSourceTrigger=PropertyChanged}"
                     Background="LightYellow"/>
             <Button Grid.Column="1" Grid.Row="1" Margin="5" Content="Delete"
@@ -99,7 +101,8 @@
                     Background="AntiqueWhite"/>
         </Grid>
         <lvc:CartesianChart Grid.Row="0" Grid.Column="1"
-                            Series="{Binding SeriesCollection}" Margin="5">
+                            Series="{Binding SeriesCollection}" Margin="5"
+                            Zoom="Xy">
             <lvc:CartesianChart.AxisY>
                 <lvc:Axis Title="Y"></lvc:Axis>
             </lvc:CartesianChart.AxisY>
@@ -114,7 +117,8 @@
             </Grid.RowDefinitions>
             <TextBlock Grid.Row="0" Text="Description:" Margin="5"/>
             <TextBlock Grid.Row="1"
-                     Text="{Binding SelectedFuntion.Description, UpdateSourceTrigger=PropertyChanged}"
+                     Name="DescriptionTextBlock"
+                     Text="{Binding SelectedFuntion.Description}"
                      Margin="5" TextWrapping="Wrap"
                      VerticalAlignment="Center" Height="60"/>
         </Grid>
diff --git a/StructureHelper/Windows/MainGraph/GraphView.xaml.cs b/StructureHelper/Windows/MainGraph/GraphView.xaml.cs
index 65e103e..aa3e669 100644
--- a/StructureHelper/Windows/MainGraph/GraphView.xaml.cs
+++ b/StructureHelper/Windows/MainGraph/GraphView.xaml.cs
@@ -40,5 +40,10 @@ namespace StructureHelper.Windows.MainGraph
             PropertyGroupDescription groupDescription = new PropertyGroupDescription(GROUP_FACTOR);
             view.GroupDescriptions.Add(groupDescription);
         }
+        public void Refresh()
+        {
+            FunctionList.Items.Refresh();
+            DescriptionTextBlock.UpdateLayout();
+        }
     }
 }
diff --git a/StructureHelper/Windows/MainGraph/GraphViewModel.cs b/StructureHelper/Windows/MainGraph/GraphViewModel.cs
index 079311d..28edd43 100644
--- a/StructureHelper/Windows/MainGraph/GraphViewModel.cs
+++ b/StructureHelper/Windows/MainGraph/GraphViewModel.cs
@@ -9,6 +9,7 @@ using StructureHelperLogics.Models.Graphs;
 using System;
 using System.Collections.Generic;
 using System.Collections.ObjectModel;
+using System.Windows;
 using System.Windows.Input;
 
 namespace StructureHelper.Windows.MainGraph
@@ -36,12 +37,6 @@ namespace StructureHelper.Windows.MainGraph
         private ObservableCollection<IOneVariableFunction> functions;
         public ObservableCollection<IOneVariableFunction> Functions { get; set; }
 
-
-
-
-
-
-
         private RelayCommand addTableCommand;
         private RelayCommand addFormulaCommand;
         private RelayCommand editCommand;
@@ -59,7 +54,7 @@ namespace StructureHelper.Windows.MainGraph
         }
         public ICommand EditCommand
         {
-            get => editCommand ??= new RelayCommand(o => Edit());
+            get => editCommand ??= new RelayCommand(o => Edit(o));
         }
         public ICommand DeleteCommand
         {
@@ -79,6 +74,7 @@ namespace StructureHelper.Windows.MainGraph
         }
         public GraphViewModel()
         {
+            //Пример 1
             Functions = new ObservableCollection<IOneVariableFunction>();
             var f1 = new TableFunction();
             f1.Name = "Табличная системная функция";
@@ -89,31 +85,15 @@ namespace StructureHelper.Windows.MainGraph
             };
             f1.IsUser = false;
             f1.Description = "Описание табличной системной функции";
+            //Пример 2
+            var f2 = new FormulaFunction();
+            f2.Name = "Формульная системная функция";
+            f2.Formula = "x^2";
+            f2.IsUser = false;
+            f2.Description = "Описание формульной системной функции";
 
-            var f4 = new TableFunction();
-            f4.Name = "Табличная системная функция";
-            f4.Table = new List<GraphPoint>()
-            {
-                new GraphPoint(1, 0),
-                new GraphPoint(0, 1),
-            };
-            f4.IsUser = false;
-            f4.Description = "Описание табличной системной функции";
-
-            /*var f2 = new TableFunction();
-            f2.Name = "Пробная табличная пользовательская функция 2";
-            f2.Table = new List<GraphPoint>();
-            f2.IsUser = true;
-            f2.Description = "Описание 2";*/
-            var f3 = new FormulaFunction();
-            f3.Name = "Формульная системная функция";
-            f3.Formula = "x^2";
-            f3.IsUser = false;
-            f3.Description = "Описание формульной системной функции";
             Functions.Add(f1);
-            //Functions.Add(f2);
-            Functions.Add(f3);
-            Functions.Add(f4);
+            Functions.Add(f2);
         }
         /*public GraphViewModel(IGraph graph) 
         {
@@ -138,7 +118,7 @@ namespace StructureHelper.Windows.MainGraph
                 Functions.Add(formulaViewModel.Function);
             }
         }
-        private void Edit()
+        private void Edit(object parameter)
         {
             if (SelectedFuntion is null)
             {
@@ -150,6 +130,7 @@ namespace StructureHelper.Windows.MainGraph
                 var tableView = new TableView();
                 tableView.DataContext = tableViewModel;
                 tableView.ShowDialog();
+                SelectedFuntion = tableViewModel.Function;
             }
             else if (SelectedFuntion.Type == FunctionType.FormulaFunction)
             {
@@ -157,8 +138,10 @@ namespace StructureHelper.Windows.MainGraph
                 var formulaView = new FormulaView();
                 formulaView.DataContext = formulaViewModel;
                 formulaView.ShowDialog();
-
-            }
+                SelectedFuntion = formulaViewModel.Function;
+            } 
+            var graphView = parameter as GraphView;
+            graphView.Refresh();
         }
         private void Delete()
         {
@@ -192,8 +175,11 @@ namespace StructureHelper.Windows.MainGraph
         }
         private void Tree()
         {
-            var treeGraphVM = new TreeGraphViewModel(SelectedFuntion);
-            var treeGraph = new TreeGraph.TreeGraphView();
+            var func = Database.GetFunctionTree();
+
+
+            var treeGraphVM = new TreeGraphViewModel(func);
+            var treeGraph = new TreeGraphView();
             treeGraph.DataContext = treeGraphVM;
             treeGraph.ShowDialog();
         }
diff --git a/StructureHelper/Windows/TreeGraph/Database.cs b/StructureHelper/Windows/TreeGraph/Database.cs
new file mode 100644
index 0000000..fe58200
--- /dev/null
+++ b/StructureHelper/Windows/TreeGraph/Database.cs
@@ -0,0 +1,52 @@
+using StructureHelperCommon.Infrastructures.Interfaces;
+using StructureHelperCommon.Models.Functions;
+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace StructureHelper.Windows.TreeGraph
+{
+    public static class Database
+    {
+        public static IOneVariableFunction GetFunctionTree()
+        {
+            return new TableFunction()
+            {
+                Name = "func0",
+                Functions = new ObservableCollection<IOneVariableFunction>()
+                {
+                    new FormulaFunction()
+                    {
+                        Name = "func1.1"
+                    },
+                    new FormulaFunction()
+                    {
+                        Name = "func1.2"
+                    },
+                    new FormulaFunction()
+                    {
+                        Name = "func1.3",
+                        Functions = new ObservableCollection<IOneVariableFunction>()
+                        {
+                            new FormulaFunction()
+                            {
+                                Name = "func2.1"
+                            },
+                            new FormulaFunction()
+                            {
+                                Name = "func2.2"
+                            },
+                        }
+                    },
+                    new TableFunction()
+                    {
+                        Name = "func1.4"
+                    }
+                }
+            };
+        }
+    }
+}
diff --git a/StructureHelper/Windows/TreeGraph/TreeGraphView.xaml b/StructureHelper/Windows/TreeGraph/TreeGraphView.xaml
index fb4af47..b3c7136 100644
--- a/StructureHelper/Windows/TreeGraph/TreeGraphView.xaml
+++ b/StructureHelper/Windows/TreeGraph/TreeGraphView.xaml
@@ -21,12 +21,24 @@
         <TreeView Grid.Row="0" 
                   Grid.Column="0" 
                   Margin="5"
-                  ItemsSource="{Binding ItemsSource}">
-            <TreeView.Resources>
-                <HierarchicalDataTemplate DataType="{x:Type local:Node}" ItemsSource="{Binding Nodes}">
-                    <TextBlock Text="{Binding Path=Name}" />
+                  ItemsSource="{Binding FirstGeneration}">
+            <TreeView.ItemContainerStyle>
+                <Style TargetType="{x:Type TreeViewItem}">
+                    <Setter Property="IsExpanded" Value="{Binding IsExpanded, Mode=TwoWay}" />
+                    <Setter Property="IsSelected" Value="{Binding IsSelected, Mode=TwoWay}" />
+                    <Setter Property="FontWeight" Value="Normal" />
+                    <Style.Triggers>
+                        <Trigger Property="IsSelected" Value="True">
+                            <Setter Property="FontWeight" Value="Bold" />
+                        </Trigger>
+                    </Style.Triggers>
+                </Style>
+            </TreeView.ItemContainerStyle>
+            <TreeView.ItemTemplate>
+                <HierarchicalDataTemplate ItemsSource="{Binding Children}">
+                    <TextBlock Text="{Binding Name}" />
                 </HierarchicalDataTemplate>
-            </TreeView.Resources>
+            </TreeView.ItemTemplate>
         </TreeView>
         <Grid Grid.Row="1" Grid.Column="0">
             <Grid.ColumnDefinitions>
@@ -68,7 +80,8 @@
                     Command="{Binding DeleteCommand}"/>
         </Grid>
         <lvc:CartesianChart Grid.Row="0" Grid.Column="1" Grid.RowSpan="2"
-                            Series="{Binding SeriesCollection}" Margin="5">
+                            Series="{Binding SeriesCollection}" Margin="5"
+                            Zoom="Xy">
             <lvc:CartesianChart.AxisY>
                 <lvc:Axis Title="Y"></lvc:Axis>
             </lvc:CartesianChart.AxisY>
diff --git a/StructureHelper/Windows/TreeGraph/TreeGraphViewModel.cs b/StructureHelper/Windows/TreeGraph/TreeGraphViewModel.cs
index cc20e22..92398b3 100644
--- a/StructureHelper/Windows/TreeGraph/TreeGraphViewModel.cs
+++ b/StructureHelper/Windows/TreeGraph/TreeGraphViewModel.cs
@@ -14,11 +14,18 @@ namespace StructureHelper.Windows.TreeGraph
 {
     public class TreeGraphViewModel : ViewModelBase
     {
+        readonly ReadOnlyCollection<TreeViewItemViewModel> _firstGeneration;
+        readonly TreeViewItemViewModel _rootFunction;
+        readonly ICommand _searchCommand;
         private RelayCommand _getYCommand;
         private RelayCommand _scaleCommand;
         private RelayCommand _limCommand;
         private RelayCommand _editCommand;
         private RelayCommand _deleteCommand;
+        public ReadOnlyCollection<TreeViewItemViewModel> FirstGeneration
+        {
+            get => _firstGeneration;
+        }
         public ICommand GetYCommand
         {
             get => _getYCommand ??= new RelayCommand(o => GetY());
@@ -42,18 +49,15 @@ namespace StructureHelper.Windows.TreeGraph
         private ObservableCollection<IOneVariableFunction> functions;
         public ObservableCollection<IOneVariableFunction> Functions { get; set; }
         public ObservableCollection<Node> Nodes { get; set; }
-        public TreeGraphViewModel(IOneVariableFunction function)
+        public TreeGraphViewModel(IOneVariableFunction rootFunction)
         {
-            Functions = new ObservableCollection<IOneVariableFunction>();
-            Functions.Add(function);
-            Nodes = new ObservableCollection<Node>()
-            {
-                new Node(),
-                new Node(),
-                new Node(),
-                new Node(),
-                new Node(),
-            };            
+            _rootFunction = new TreeViewItemViewModel(rootFunction);
+
+            _firstGeneration = new ReadOnlyCollection<TreeViewItemViewModel>(
+                new TreeViewItemViewModel[]
+                {
+                    _rootFunction
+                });
         }
         private void GetY()
         {
diff --git a/StructureHelper/Windows/TreeGraph/TreeViewItemViewModel.cs b/StructureHelper/Windows/TreeGraph/TreeViewItemViewModel.cs
new file mode 100644
index 0000000..61bd957
--- /dev/null
+++ b/StructureHelper/Windows/TreeGraph/TreeViewItemViewModel.cs
@@ -0,0 +1,78 @@
+using FieldVisualizer.ViewModels;
+using StructureHelperCommon.Infrastructures.Interfaces;
+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace StructureHelper.Windows.TreeGraph
+{
+    public class TreeViewItemViewModel : ViewModelBase
+    {
+        readonly ReadOnlyCollection<TreeViewItemViewModel> _children;
+        readonly TreeViewItemViewModel _parent;
+        readonly IOneVariableFunction _functions;
+
+        bool _isExpanded;
+        bool _isSelected;
+
+        public TreeViewItemViewModel(IOneVariableFunction function) : this(function, null)
+        {
+        }
+        private TreeViewItemViewModel(IOneVariableFunction function, TreeViewItemViewModel parent)
+        {
+            _functions = function;
+            _parent = parent;
+            _children = new ReadOnlyCollection<TreeViewItemViewModel>
+                (
+                _functions.Functions
+                .Select(x => new TreeViewItemViewModel(x, this))
+                .ToList<TreeViewItemViewModel>()
+                );
+        }
+        public ReadOnlyCollection<TreeViewItemViewModel> Children
+        {
+            get { return _children; }
+        }
+
+        public string Name
+        {
+            get { return _functions.Name; }
+        }
+        public bool IsExpanded
+        {
+            get { return _isExpanded; }
+            set
+            {
+                if (value != _isExpanded)
+                {
+                    _isExpanded = value;
+                    OnPropertyChanged(nameof(IsExpanded));
+                }
+                // Expand all the way up to the root.
+                if (_isExpanded && _parent != null)
+                    _parent.IsExpanded = true;
+            }
+        }
+        public bool IsSelected
+        {
+            get { return _isSelected; }
+            set
+            {
+                if (value != _isSelected)
+                {
+                    _isSelected = value;
+                    OnPropertyChanged(nameof(IsSelected));
+                }
+            }
+        }
+        public TreeViewItemViewModel Parent
+        {
+            get { return _parent; }
+        }
+
+    }
+}
diff --git a/StructureHelperCommon/Models/Functions/FormulaFunction.cs b/StructureHelperCommon/Models/Functions/FormulaFunction.cs
index ce5e857..04146b2 100644
--- a/StructureHelperCommon/Models/Functions/FormulaFunction.cs
+++ b/StructureHelperCommon/Models/Functions/FormulaFunction.cs
@@ -26,7 +26,7 @@ namespace StructureHelperCommon.Models.Functions
 
         public Guid Id => throw new NotImplementedException();
 
-        public ObservableCollection<IOneVariableFunction> Functions {  get; set; }
+        public ObservableCollection<IOneVariableFunction> Functions { get; set; } = new ObservableCollection<IOneVariableFunction>();
         public FormulaFunction(bool isUser = false)
         {
             Type = FunctionType.FormulaFunction;
diff --git a/StructureHelperCommon/Models/Functions/TableFunction.cs b/StructureHelperCommon/Models/Functions/TableFunction.cs
index 6041409..40d7927 100644
--- a/StructureHelperCommon/Models/Functions/TableFunction.cs
+++ b/StructureHelperCommon/Models/Functions/TableFunction.cs
@@ -21,19 +21,12 @@ namespace StructureHelperCommon.Models.Functions
         public bool IsUser { get; set; }
         public FunctionType Type { get; set; }
         public string Group { get; set; }
-        public string Name 
-        {
-            get => name;
-            set
-            {
-                name = value;
-            }
-        }
+        public string Name { get; set; }
         public string Description { get; set; }
         public List<GraphPoint> Table { get; set; }
 
         public Guid Id => throw new NotImplementedException();
-        public ObservableCollection<IOneVariableFunction> Functions { get; set; }
+        public ObservableCollection<IOneVariableFunction> Functions { get; set; } = new ObservableCollection<IOneVariableFunction>();
 
         public TableFunction(bool isUser = false)
         {