添加项目文件。

ViewModel/AppConfig.cs

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+using GalaSoft.MvvmLight;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using GeekDesk.Constant;
+
+namespace GeekDesk.ViewModel
+{
+    [Serializable]
+    public class AppConfig  :  ViewModelBase
+    {
+        private int menuSortType = (int)SortType.CUSTOM; //菜单排序类型
+        private int iconSortType = (int)SortType.CUSTOM; //图表排序类型
+        private double windowWidth = (double)DefaultConstant.WINDOW_WIDTH;  //窗口宽度
+        private double windowHeight = (double)DefaultConstant.WINDOW_HEIGHT; //窗口高度
+        private double menuCardWidth = (double)DefaultConstant.MENU_CARD_WIDHT;//菜单栏宽度
+
+
+        #region GetSet
+        public int MenuSortType {
+            get
+            {
+                return menuSortType;
+            }
+            set
+            {
+                menuSortType = value;
+                RaisePropertyChanged();
+            }
+        }
+
+        public int IconSortType
+        {
+            get
+            {
+                return iconSortType;
+            }
+            set
+            {
+                iconSortType = value;
+                RaisePropertyChanged();
+            }
+        }
+
+        public double WindowWidth
+        {
+            get
+            {
+                return windowWidth;
+            }
+            set
+            {
+                windowWidth = value;
+                RaisePropertyChanged();
+            }
+        }
+
+        public double WindowHeight
+        {
+            get
+            {
+                return windowHeight;
+            }
+            set
+            {
+                windowHeight = value;
+                RaisePropertyChanged();
+            }
+        }
+
+        public double MenuCardWidth
+        {
+            get
+            {
+                return menuCardWidth;
+            }
+            set
+            {
+                menuCardWidth = value;
+                RaisePropertyChanged();
+            }
+        }
+        #endregion
+
+    }
+}

ViewModel/DataInfos.cs

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+using GalaSoft.MvvmLight;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Media.Imaging;
+
+namespace GeekDesk.ViewModel
+{
+    public class DataInfos : ViewModelBase
+    {
+        private string path; //路径
+        private string name; //文件名
+        private int count = 0; //打开次数
+        private BitmapImage bitmapImage; //位图
+
+        public int Count
+        {
+            get
+            {
+                return count;
+            }
+            set
+            {
+                count = value;
+                RaisePropertyChanged();
+            }
+        }
+
+        public string Name
+        {
+            get
+            {
+                return name;
+            }
+            set
+            {
+                name = value;
+                RaisePropertyChanged();
+            }
+        }
+
+        public string Path
+        {
+            get
+            {
+                return path;
+            }
+            set
+            {
+                path = value;
+                RaisePropertyChanged();
+            }
+        }
+
+        public BitmapImage BitmapImage
+        {
+            get
+            {
+                return bitmapImage;
+            }
+            set
+            {
+                bitmapImage = value;
+                RaisePropertyChanged();
+            }
+        }
+    }
+}

ViewModel/MainModel.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace GeekDesk.ViewModel
+{
+    class MainModel
+    {
+    }
+}

ViewModel/MainViewModel.cs

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+using GalaSoft.MvvmLight;
+
+namespace GeekDesk.ViewModel
+{
+    /// <summary>
+    /// This class contains properties that the main View can data bind to.
+    /// <para>
+    /// Use the <strong>mvvminpc</strong> snippet to add bindable properties to this ViewModel.
+    /// </para>
+    /// <para>
+    /// You can also use Blend to data bind with the tool's support.
+    /// </para>
+    /// <para>
+    /// See http://www.galasoft.ch/mvvm
+    /// </para>
+    /// </summary>
+    public class MainViewModel : ViewModelBase
+    {
+        /// <summary>
+        /// Initializes a new instance of the MainViewModel class.
+        /// </summary>
+        public MainViewModel()
+        {
+            ////if (IsInDesignMode)
+            ////{
+            ////    // Code runs in Blend --> create design time data.
+            ////}
+            ////else
+            ////{
+            ////    // Code runs "for real"
+            ////}
+        }
+    }
+}

ViewModel/MenuViewModel.cs

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+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace GeekDesk.ViewModel
+{
+    class MenuViewModel
+    {
+
+        public MenuViewModel()
+        {
+            
+        }
+
+        public ObservableCollection<Menu> GetMenus()
+        {
+            ObservableCollection<Menu> menus = new ObservableCollection<Menu>();
+            menus.Add(new Menu() { menu = "test1" });
+            menus.Add(new Menu() { menu = "test2" });
+            menus.Add(new Menu() { menu = "test3" });
+            return menus;
+        }
+        
+
+    }
+
+
+
+    public class Menu
+    {
+        public string menu { get; set; }
+    }
+}