Adjust project structure

src/Net_40/HandyControlDemo_Net_40/ViewModel/Controls/StepBarDemoViewModel.cs

@@ -0,0 +1,41 @@
+using System;
+using System.Linq;
+using System.Windows.Controls;
+using GalaSoft.MvvmLight.Command;
+using HandyControl.Controls;
+using HandyControlDemo.Data;
+using HandyControlDemo.Service;
+
+namespace HandyControlDemo.ViewModel
+{
+    public class StepBarDemoViewModel : DemoViewModelBase<StepBarDemoModel>
+    {
+        public StepBarDemoViewModel(DataService dataService) => DataList = dataService.GetStepBarDemoDataList();
+
+        /// <summary>
+        ///     下一步
+        /// </summary>
+        public RelayCommand<Panel> NextCmd => new Lazy<RelayCommand<Panel>>(() => new RelayCommand<Panel>(Next)).Value;
+
+        /// <summary>
+        ///     上一步
+        /// </summary>
+        public RelayCommand<Panel> PrevCmd => new Lazy<RelayCommand<Panel>>(() => new RelayCommand<Panel>(Prev)).Value;
+
+        private void Next(Panel panel)
+        {
+            foreach (var stepBar in panel.Children.OfType<StepBar>())
+            {
+                stepBar.Next();
+            }
+        }
+
+        private void Prev(Panel panel)
+        {
+            foreach (var stepBar in panel.Children.OfType<StepBar>())
+            {
+                stepBar.Prev();
+            }
+        }
+    }
+}