mvvm模式下在WPF項目中動態載入項目的程式集和類

在mvvm模式的wpf項目中有個需求需要去載入解決方案的程式集，並且根據程式集去動態載入當前程式集的類，做成下拉框形式。

效果：

//全局定義
 private ComboBox abList= null;
        /// <summary>
        /// 載入所有項目的程式集
        /// </summary>
        public void LoadAssembly()
        {
            abList=new ComboBox();
            IList<FileInfo> list = new List<FileInfo>();
            FileInfo[] files = new DirectoryInfo(System.Environment.CurrentDirectory).GetFiles("*.dll");
            foreach (FileInfo info2 in files)
            {

                try
                {
                    if (info2.Name.Contains("Reform"))
                    {
                        abList.Items.Add(info2);
                    } 
                }
                catch
                {
                    continue;
                }
                
            }

        }

//屬性定義
 private List<string> assemblyList;
        /// <summary>
        /// 程式集列表下拉框數據源
        /// </summary>
        public List<string> AssemblyList
        {
            get { return assemblyList; }
            set
            {
                assemblyList = value;
                NotifyOfPropertyChange("AssemblyList");
            }
        }
 private List<string> classList;

        /// <summary>
        ///類列表下拉框數據源
        /// </summary>
        public List<string> ClassList
        {
            get { return classList; }
            set
            {
                classList = value;
                NotifyOfPropertyChange("ClassList");
            }
        }

//初始化數據
public InitData ()
{
//給程式集下拉框賦值
foreach (var assemblyListItem in abList.Items)
{
AssemblyList.Add(assemblyListItem.ToString());
}
.......

}

/// <summary>
        /// 程式集改變事件 
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param> 
        public void abList_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            try
            {
                if (e != null && e.AddedItems.Count > 0)
                {
                    ClassList = new List<string>();
                    var Companies = e.AddedItems[0].ToString();
                    //載入對應類
                    foreach (var assemblyItem in abList.Items)
                    {
                        if (assemblyItem.ToString() == Companies)
                        {
                            FileInfo selectedItem = assemblyItem as FileInfo;
                            if (selectedItem != null)
                            {
                                System.Type[] types = Assembly.LoadFile(selectedItem.FullName).GetTypes();
                                foreach (System.Type type2 in types)
                                {
                                    if ((type2.IsClass && type2.IsPublic)&& type2.FullName.Contains("Reform"))
                                    {
                                        ClassList.Add(type2.FullName);//類下拉框賦值
                                    }
                                }
                            }
                            break;
                        }
                    }
                }
                e.Handled = true;
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }
        /// <summary>
        /// 類選擇事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        public void classList_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            try
            {
                if (e != null && e.AddedItems.Count > 0)
                {
                    var Companies = e.AddedItems[0].ToString();
                    RightModule.ClassName = Companies;
                }
                e.Handled = true;
            }
            catch (Exception ex)
            {

                throw ex;
            }
        }

wpf窗體：

//程式集下拉框
                <ComboBox Grid.Row="5" Grid.Column="1" ItemsSource="{Binding AssemblyList}" SelectedIndex="0" cm:Message.Attach="[Event SelectionChanged]=[abList_SelectionChanged($source,$eventArgs)];"  Text="{Binding RightModule.AssemblyName,Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}" HorizontalAlignment="Left"  Width="252" Height="25"  IsEditable="True" Margin="5,3"></ComboBox>

//類下拉框
                <ComboBox Grid.Row="6" Grid.Column="1" ItemsSource="{Binding ClassList,Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}" SelectedIndex="0" cm:Message.Attach="[Event SelectionChanged]=[classList_SelectionChanged($source,$eventArgs)];"  Text="{Binding RightModule.ClassName,Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}" HorizontalAlignment="Left"  Width="252" Height="25"  IsEditable="True" Margin="5,3"></ComboBox>