Add rename and tree modifiers, binding function purpose enum

StructureHelper/StructureHelper.csproj.user

@@ -93,6 +93,9 @@
     <Compile Update="Windows\TreeGraph\LimView.xaml.cs">
       <SubType>Code</SubType>
     </Compile>
+    <Compile Update="Windows\TreeGraph\RenameView.xaml.cs">
+      <SubType>Code</SubType>
+    </Compile>
     <Compile Update="Windows\TreeGraph\ScaleView.xaml.cs">
       <SubType>Code</SubType>
     </Compile>
@@ -209,6 +212,9 @@
     <Page Update="Windows\TreeGraph\LimView.xaml">
       <SubType>Designer</SubType>
     </Page>
+    <Page Update="Windows\TreeGraph\RenameView.xaml">
+      <SubType>Designer</SubType>
+    </Page>
     <Page Update="Windows\TreeGraph\ScaleView.xaml">
       <SubType>Designer</SubType>
     </Page>

StructureHelper/Windows/MainGraph/FormulaView.xaml

@@ -1,13 +1,23 @@
 <Window x:Class="StructureHelper.Windows.MainGraph.FormulaView"
-         x:Name="FormulaFunction_win"
+        x:Name="FormulaFunction_win"
+        xmlns:sys="clr-namespace:System;assembly=mscorlib"
         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"
         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
         xmlns:local="clr-namespace:StructureHelper.Windows.MainGraph"
+        xmlns:ens="clr-namespace:StructureHelperCommon.Infrastructures.Enums;assembly=StructureHelperCommon"
         mc:Ignorable="d"
         d:DataContext="{d:DesignInstance local:FormulaViewModel}"
-        Title="FormulaFunction" Height="580" Width="400">
+        Title="FormulaFunction" Height="640" Width="400">
+    <Window.Resources>
+        <ObjectDataProvider x:Key="PurposeEnum" MethodName="GetValues"
+                      ObjectType="{x:Type sys:Enum}">
+            <ObjectDataProvider.MethodParameters>
+                <x:Type TypeName="ens:FunctionPurpose"/>
+            </ObjectDataProvider.MethodParameters>
+        </ObjectDataProvider>
+    </Window.Resources>
     <Grid>
         <Grid.RowDefinitions>
             <RowDefinition Height="60"/>
@@ -17,6 +27,7 @@
             <RowDefinition Height="60"/>
             <RowDefinition Height="60"/>
             <RowDefinition Height="60"/>
+            <RowDefinition Height="60"/>
             <RowDefinition Height="50"/>
         </Grid.RowDefinitions>
         <Grid Grid.Row="0">
@@ -134,6 +145,20 @@
             <TextBox Grid.Row="1" Text="{Binding Name}" Margin="5"/>
         </Grid>
         <Grid Grid.Row="5">
+            <Grid.RowDefinitions>
+                <RowDefinition Height="30"/>
+                <RowDefinition Height="30"/>
+            </Grid.RowDefinitions>
+            <TextBlock Grid.Row="0" 
+                       Margin="5"
+                       Text="Purpose:" 
+                       VerticalAlignment="Center"/>
+            <ComboBox Grid.Row="1"  
+                      Margin="5"
+                      ItemsSource="{Binding Source={StaticResource PurposeEnum}}"
+                      SelectedItem="{Binding FunctionPurpose}"/>
+        </Grid>
+        <Grid Grid.Row="6">
             <Grid.RowDefinitions>
                 <RowDefinition Height="30"/>
                 <RowDefinition Height="30"/>
@@ -144,7 +169,7 @@
                        VerticalAlignment="Center"/>
             <TextBox Grid.Row="1" Text="{Binding Description}" Margin="5"/>
         </Grid>
-        <Grid Grid.Row="6">
+        <Grid Grid.Row="7">
             <Grid.RowDefinitions>
                 <RowDefinition Height="30"/>
                 <RowDefinition Height="30"/>
@@ -173,7 +198,7 @@
                 </Rectangle.Fill>
             </Rectangle>
         </Grid>
-        <Button Grid.Row="7" Margin="5" Content="Save"
+        <Button Grid.Row="8" Margin="5" Content="Save"
                 Command="{Binding SaveCommand}"
                 CommandParameter="{Binding ElementName=FormulaFunction_win}">
         </Button>

StructureHelper/Windows/MainGraph/FormulaViewModel.cs

@@ -1,5 +1,6 @@
 
 using StructureHelper.Infrastructure;
+using StructureHelperCommon.Infrastructures.Enums;
 using StructureHelperCommon.Infrastructures.Interfaces;
 using StructureHelperCommon.Models.Functions;
 using StructureHelperCommon.Services.ColorServices;
@@ -103,6 +104,15 @@ namespace StructureHelper.Windows.MainGraph
                 name = value;
             }
         }
+        private FunctionPurpose functionPurpose;
+        public FunctionPurpose FunctionPurpose
+        {
+            get => functionPurpose;
+            set
+            {
+                functionPurpose = value;
+            }
+        }
         private string description;
         public string Description
         {
@@ -148,6 +158,7 @@ namespace StructureHelper.Windows.MainGraph
             Formula = formulaFunction.Formula;
             Step = formulaFunction.Step;
             Name = Function.Name;
+            FunctionPurpose = Function.FunctionPurpose;
             Description = Function.Description;
             LeftBound = Function.MinArg;
             RightBound = Function.MaxArg;
@@ -173,6 +184,7 @@ namespace StructureHelper.Windows.MainGraph
             Function.Color = Color;
             Function.MinArg = LeftBound;
             Function.MaxArg = RightBound;
+            Function.FunctionPurpose = FunctionPurpose;
             var window = parameter as Window;
             if (LeftBound > RightBound)
             {

StructureHelper/Windows/MainGraph/TableView.xaml

@@ -1,16 +1,26 @@
 <Window x:Class="StructureHelper.Windows.MainGraph.TableView"
         x:Name="TableFunction_win"
+        xmlns:sys="clr-namespace:System;assembly=mscorlib"
         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"
         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
         xmlns:local="clr-namespace:StructureHelper.Windows.MainGraph"
+        xmlns:ens="clr-namespace:StructureHelperCommon.Infrastructures.Enums;assembly=StructureHelperCommon"
         mc:Ignorable="d"
         ResizeMode="CanResize"
         d:DataContext="{d:DesignInstance local:TableViewModel}"
-        Title="TableFunction" Height="560" Width="400"
+        Title="TableFunction" Height="620" Width="400"
         MaxWidth="400"
         MinWidth="400">
+    <Window.Resources>
+        <ObjectDataProvider x:Key="PurposeEnum" MethodName="GetValues"
+                        ObjectType="{x:Type sys:Enum}">
+            <ObjectDataProvider.MethodParameters>
+                <x:Type TypeName="ens:FunctionPurpose"/>
+            </ObjectDataProvider.MethodParameters>
+        </ObjectDataProvider>
+    </Window.Resources>
     <Grid>
         <Grid.RowDefinitions>
             <RowDefinition Height="30"/>
@@ -19,6 +29,7 @@
             <RowDefinition Height="60"/>
             <RowDefinition Height="60"/>
             <RowDefinition Height="60"/>
+            <RowDefinition Height="60"/>
             <RowDefinition Height="50"/>
         </Grid.RowDefinitions>
         <Grid Grid.Column="0" Margin="5">
@@ -96,6 +107,20 @@
             <TextBox Grid.Row="1" Text="{Binding Name}" Margin="5"/>
         </Grid>
         <Grid Grid.Row="4">
+            <Grid.RowDefinitions>
+                <RowDefinition Height="30"/>
+                <RowDefinition Height="30"/>
+            </Grid.RowDefinitions>
+            <TextBlock Grid.Row="0" 
+                       Margin="5"
+                       Text="Purpose:" 
+                       VerticalAlignment="Center"/>
+            <ComboBox Grid.Row="1"  
+                      Margin="5"
+                      ItemsSource="{Binding Source={StaticResource PurposeEnum}}"
+                      SelectedItem="{Binding FunctionPurpose}"/>
+        </Grid>
+        <Grid Grid.Row="5">
             <Grid.RowDefinitions>
                 <RowDefinition Height="30"/>
                 <RowDefinition Height="30"/>
@@ -106,7 +131,7 @@
                        VerticalAlignment="Center"/>
             <TextBox Grid.Row="1" Text="{Binding Description}" Margin="5"/>
         </Grid>
-        <Grid Grid.Row="5">
+        <Grid Grid.Row="6">
             <Grid.RowDefinitions>
                 <RowDefinition Height="30"/>
                 <RowDefinition Height="30"/>
@@ -135,7 +160,7 @@
                 </Rectangle.Fill>
             </Rectangle>
         </Grid>
-        <Button Grid.Row="6" Margin="5" Content="Save"
+        <Button Grid.Row="7" Margin="5" Content="Save"
                 Command="{Binding SaveCommand}"
                 CommandParameter="{Binding ElementName=TableFunction_win}">
         </Button>

StructureHelper/Windows/MainGraph/TableViewModel.cs

@@ -1,4 +1,5 @@
 using StructureHelper.Infrastructure;
+using StructureHelperCommon.Infrastructures.Enums;
 using StructureHelperCommon.Infrastructures.Interfaces;
 using StructureHelperCommon.Models.Functions;
 using StructureHelperCommon.Models.Shapes;
@@ -79,6 +80,15 @@ namespace StructureHelper.Windows.MainGraph
                 name = value;
             }
         }
+        private FunctionPurpose functionPurpose;
+        public FunctionPurpose FunctionPurpose
+        {
+            get => functionPurpose;
+            set
+            {
+                functionPurpose = value;
+            }
+        }
         private string description;
         public string Description
         {
@@ -114,6 +124,7 @@ namespace StructureHelper.Windows.MainGraph
             Function = tableFunction;
             Table = new ObservableCollection<GraphPoint>((Function as TableFunction).Table);
             Name = Function.Name;
+            FunctionPurpose = Function.FunctionPurpose;
             Description = Function.Description;
             Color = Function.Color;
         }
@@ -134,6 +145,7 @@ namespace StructureHelper.Windows.MainGraph
             Function.IsUser = true;
             (Function as TableFunction).Table = Table.OrderBy(x => x.X).ToList();
             Function.Color = Color;
+            Function.FunctionPurpose = FunctionPurpose;
             var window = parameter as Window;
             window.DialogResult = true;
             window.Close();

StructureHelper/Windows/TreeGraph/RenameView.xaml

@@ -0,0 +1,51 @@
+<Window x:Class="StructureHelper.Windows.TreeGraph.RenameView"
+        x:Name="RenameView_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"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:StructureHelper.Windows.TreeGraph"
+        mc:Ignorable="d"
+        d:DataContext="{d:DesignInstance local:RenameViewModel}"
+        Title="Scale" Height="200" Width="250"
+        MinWidth="250">
+    <Grid>
+        <Grid.RowDefinitions>
+            <RowDefinition Height="60"/>
+            <RowDefinition Height="*"/>
+            <RowDefinition Height="50"/>
+        </Grid.RowDefinitions>
+        <Grid Grid.Row="0">
+            <Grid.RowDefinitions>
+                <RowDefinition Height="30"/>
+                <RowDefinition Height="30"/>
+            </Grid.RowDefinitions>
+            <TextBlock Grid.Row="0" 
+                    Margin="5"
+                    Text="Enter new function name:" 
+                    VerticalAlignment="Center"/>
+            <Grid Grid.Row="1">
+                <Grid.ColumnDefinitions>
+                    <ColumnDefinition Width="*"/>
+                </Grid.ColumnDefinitions>
+                <TextBox Grid.Column="1" Text="{Binding FunctionName,
+                                 UpdateSourceTrigger=PropertyChanged}"      
+                      Margin="5"/>
+            </Grid>
+        </Grid>
+        <TextBlock Grid.Row="1"
+                Margin="5"
+                Background="LightYellow" 
+                Text="{Binding FunctionName, 
+                       UpdateSourceTrigger=PropertyChanged}"
+                TextAlignment="Center"
+                FontSize="20"
+                TextWrapping="Wrap">
+        </TextBlock>
+        <Button Grid.Row="4" Margin="5" Content="Save"
+                Command="{Binding SaveCommand}"
+                CommandParameter="{Binding ElementName=RenameView_win}">
+        </Button>
+    </Grid>
+</Window>
+

StructureHelper/Windows/TreeGraph/RenameView.xaml.cs

@@ -0,0 +1,27 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using System.Windows.Shapes;
+
+namespace StructureHelper.Windows.TreeGraph
+{
+    /// <summary>
+    /// Interaction logic for RenameView.xaml
+    /// </summary>
+    public partial class RenameView : Window
+    {
+        public RenameView()
+        {
+            InitializeComponent();
+        }
+    }
+}

StructureHelper/Windows/TreeGraph/RenameViewModel.cs

@@ -0,0 +1,42 @@
+using StructureHelper.Infrastructure;
+using StructureHelperCommon.Infrastructures.Interfaces;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Input;
+
+namespace StructureHelper.Windows.TreeGraph
+{
+    public class RenameViewModel : ViewModelBase
+    {
+
+        private RelayCommand saveCommand;
+        public ICommand SaveCommand
+        {
+            get => saveCommand ??= new RelayCommand(o => Save(o));
+        }
+        private string functionName;
+        public string FunctionName
+        {
+            get => functionName;
+            set
+            {
+                functionName = value;
+                OnPropertyChanged(nameof(FunctionName));
+            }
+        }
+        public RenameViewModel(TreeViewItemViewModel item)
+        {
+            FunctionName = item.Name;
+        }
+        private void Save(object parameter)
+        {
+            var window = parameter as Window;
+            window.DialogResult = true;
+            window.Close();
+        }
+    }
+}

StructureHelper/Windows/TreeGraph/TreeGraphView.xaml

@@ -7,7 +7,7 @@
         xmlns:local="clr-namespace:StructureHelper.Windows.TreeGraph"
         mc:Ignorable="d"
         d:DataContext="{d:DesignInstance local:TreeGraphViewModel}"
-        Title="StructureHelper" Height="700" 
+        Title="StructureHelper" Height="750" 
         Width="1000" MinHeight="400" MinWidth="600">
     <Grid>
         <Grid.ColumnDefinitions>
@@ -18,6 +18,7 @@
             <RowDefinition Height="*"/>
             <RowDefinition Height="170"/>
             <RowDefinition Height="50"/>
+            <RowDefinition Height="50"/>
         </Grid.RowDefinitions>
         <TreeView Name="FunctionTreeView"
                   Grid.Row="0" 
@@ -124,6 +125,23 @@
                     Background="LightPink"
                     Command="{Binding DeleteCommand}"/>
         </Grid>
+        <Grid Grid.Row="3" Grid.Column="0">
+            <Grid.ColumnDefinitions>
+                <ColumnDefinition Width="50"/>
+                <ColumnDefinition Width="50"/>
+            </Grid.ColumnDefinitions>
+            <Grid.RowDefinitions>
+                <RowDefinition Height="50"/>
+            </Grid.RowDefinitions>
+            <Button Grid.Column="0" Margin="5" Content="Tree"
+                    Background="AntiqueWhite"
+                    Command="{Binding TreeCommand}"/>
+            <Button Grid.Column="1" Margin="5" Content="Rename"
+                    FontSize="10"
+                    Background="HotPink"
+                    Command="{Binding RenameCommand}"
+                    CommandParameter="{Binding ElementName=FunctionTreeView}"/>
+        </Grid>
         <lvc:CartesianChart Grid.Row="0" Grid.Column="1" Grid.RowSpan="2"
                             Series="{Binding SeriesCollection}" Margin="5"
                             Zoom="Xy">

StructureHelper/Windows/TreeGraph/TreeGraphViewModel.cs

@@ -14,6 +14,8 @@ using System.Windows.Input;
 using StructureHelperCommon.Models.Functions.Decorator;
 using System.Windows.Media;
 using StructureHelper.Windows.Graphs;
+using System.Windows.Controls;
+
 
 namespace StructureHelper.Windows.TreeGraph
 {
@@ -23,15 +25,18 @@ namespace StructureHelper.Windows.TreeGraph
         private SeriesCollection seriesCollection;
         private List<string> labels;
         readonly ObservableCollection<TreeViewItemViewModel> _tree;
-        readonly TreeViewItemViewModel _rootFunction;
+        readonly TreeViewItemViewModel _root;
         readonly ICommand _searchCommand;
         private RelayCommand _getYCommand;
         private RelayCommand _scaleCommand;
         private RelayCommand _limCommand;
         private RelayCommand _deleteCommand;
+        private RelayCommand _treeCommand;
+        private RelayCommand _renameCommand;
         private RelayCommand _saveCommand;
         private TreeGraphView _treeGraphView_win;
         private IOneVariableFunction selectedFunction;
+        private IOneVariableFunction rootFunction;
         public IOneVariableFunction SelectedFuntion
         {
             get
@@ -44,6 +49,18 @@ namespace StructureHelper.Windows.TreeGraph
                 OnPropertyChanged(nameof(SelectedFuntion));
             }
         }
+        public IOneVariableFunction RootFunction
+        {
+            get
+            {
+                return rootFunction;
+            }
+            set
+            {
+                rootFunction = value;
+                OnPropertyChanged(nameof(RootFunction));
+            }
+        }
         public SeriesCollection SeriesCollection
         {
             get => seriesCollection;
@@ -97,19 +114,27 @@ namespace StructureHelper.Windows.TreeGraph
         {
             get => _deleteCommand ??= new RelayCommand(o => Delete());
         }
+        public ICommand TreeCommand
+        {
+            get => _treeCommand ??= new RelayCommand(o => NewTree());
+        }
+        public ICommand RenameCommand
+        {
+            get => _renameCommand ??= new RelayCommand(o => Rename(o));
+        }
         public ICommand SaveCommand
         {
             get => _saveCommand ??= new RelayCommand(o => Save());
         }
         public TreeGraphViewModel(IOneVariableFunction rootFunction)
         {
-            _rootFunction = new TreeViewItemViewModel(rootFunction, this);
+            RootFunction = rootFunction;
-
+            _root = new TreeViewItemViewModel(rootFunction, this);
             _tree = new ObservableCollection<TreeViewItemViewModel>
                 (
                     new ObservableCollection<TreeViewItemViewModel>()
                     {
-                        _rootFunction,
+                        _root,
                     }
                 );
         }
@@ -218,6 +243,39 @@ namespace StructureHelper.Windows.TreeGraph
             }
             selectedTreeViewItemParent.Children.Remove(selectedTreeViewItem);
         }
+        private void Rename(object parameter)
+        {
+            var selectedTreeViewItem = TreeGraphView_win.FunctionTreeView.SelectedItem as TreeViewItemViewModel;
+            if (selectedTreeViewItem is null)
+            {
+                return;
+            }
+            var selectedTreeViewItemParent = selectedTreeViewItem.Parent;
+            if (selectedTreeViewItemParent is null)
+            {
+                return;
+            }
+            var renameViewModel = new RenameViewModel(selectedTreeViewItem);
+            var renameView = new RenameView();
+            renameView.DataContext = renameViewModel;
+            if (renameView.ShowDialog() == true)
+            {
+                selectedTreeViewItem.Name = renameViewModel.FunctionName;
+            }
+        }
+        private void NewTree()
+        {
+            if (SelectedFuntion is null)
+            {
+                return;
+            }
+            var treeGraphVM = new TreeGraphViewModel(SelectedFuntion);
+            var treeGraph = new TreeGraphView();
+            treeGraph.DataContext = treeGraphVM;
+            treeGraphVM.TreeGraphView_win = treeGraph;
+            treeGraph.ShowDialog();
+            //Сохранить поддерево
+        }
         public void DrawGraph()
         {
             var labels = new List<string>();
@@ -240,6 +298,12 @@ namespace StructureHelper.Windows.TreeGraph
         public void Save()
         {
             
+            
+        
+        }
+        private List<IOneVariableFunction> GetFunctionChildern(TreeViewItemViewModel item)
+        {
+            return null;
         }
     }
 }

StructureHelper/Windows/TreeGraph/TreeViewItemViewModel.cs

@@ -46,6 +46,11 @@ namespace StructureHelper.Windows.TreeGraph
         public string Name
         {
             get { return _function.Name; }
+            set 
+            { 
+                _function.Name = value;
+                OnPropertyChanged(nameof(Name));
+            }
         }
         public bool IsExpanded
         {
@@ -71,6 +76,7 @@ namespace StructureHelper.Windows.TreeGraph
                 {
                     _isSelected = value;
                     _treeGraphViewModel.DrawGraph();
+                    _treeGraphViewModel.Save();
                     OnPropertyChanged(nameof(IsSelected));
                 }
             }

StructureHelperCommon/Infrastructures/Settings/ProgramSetting.cs

@@ -96,9 +96,26 @@ namespace StructureHelperCommon.Infrastructures.Settings
         }
         public static ObservableCollection<IOneVariableFunction> Functions { get; set; } = new ObservableCollection<IOneVariableFunction>
         {
+            new TableFunction()
+            {
+                Name = "Not StressStrain",
+                FunctionPurpose = FunctionPurpose.FireProtection,
+                Table = new List<GraphPoint>()
+                {
+                    new GraphPoint(1, 1),
+                    new GraphPoint(2, 2),
+                    new GraphPoint(3, 3),
+                    new GraphPoint(4, 4),
+                    new GraphPoint(5, 5),
+                    new GraphPoint(6, 6),
+                },
+                IsUser = false,
+                Description = "Пример описания",
+            },
             new TableFunction()
             {
                 Name = "Табличная системная функция",
+                FunctionPurpose = FunctionPurpose.StressStrain,
                 Table = new List<GraphPoint>()
                 {
                     new GraphPoint(1, 1),
@@ -114,6 +131,7 @@ namespace StructureHelperCommon.Infrastructures.Settings
             new FormulaFunction()
             {
                 Name = "Формульная системная функция",
+                FunctionPurpose = FunctionPurpose.StressStrain,
                 Formula = "x^2",
                 Step = 100,
                 MinArg = 1,

StructureHelperCommon/Models/Functions/FormulaFunction.cs

@@ -95,6 +95,7 @@ namespace StructureHelperCommon.Models.Functions
             formulaFunction.Step = Step;
             formulaFunction.MinArg = MinArg;
             formulaFunction.MaxArg = MaxArg;
+            formulaFunction.FunctionPurpose = FunctionPurpose;
             return formulaFunction;
         }
 

StructureHelperCommon/Models/Functions/TableFunction.cs

@@ -68,6 +68,7 @@ namespace StructureHelperCommon.Models.Functions
             tableFunction.Table = newTable;
             tableFunction.IsUser = true;
             tableFunction.Group = GROUP_TYPE_2;
+            tableFunction.FunctionPurpose = FunctionPurpose;
             return tableFunction;
         }
 

StructureHelperCommon/Windows/FunctionSelectionVM.cs

@@ -27,7 +27,7 @@ namespace StructureHelperCommon.Windows
         public string SPECIAL { get; } = "Special Limit State";
         public string CREATE_MATERIAL { get; } = "Create Function Material";
         private const string ERROR_TEXT_1 = "Not all material states have functions ";
-        public ObservableCollection<IOneVariableFunction> Functions { get; set; } = ProgramSetting.Functions;
+        public ObservableCollection<IOneVariableFunction> Functions { get; set; }
         public IOneVariableFunction Func_ST_ULS { get; set; }
         public IOneVariableFunction Func_ST_SLS { get; set; }
         public IOneVariableFunction Func_ST_Special { get; set; }
@@ -35,6 +35,11 @@ namespace StructureHelperCommon.Windows
         public IOneVariableFunction Func_LT_SLS { get; set; }
         public IOneVariableFunction Func_LT_Special { get; set; }
         public FunctionStorage FunctionStorage { get; set; } = new();
+        public FunctionSelectionVM()
+        {
+            var listFunctions = ProgramSetting.Functions.Where(x => x.FunctionPurpose == Infrastructures.Enums.FunctionPurpose.StressStrain).ToList();
+            Functions = new ObservableCollection<IOneVariableFunction>();
+        }
         private void CreateFunctionMaterial(object parameter)
         {
             var window = parameter as Window;