添加项目文件。

XXCpzs/ViewModels/HuanHuoViewModel.cs

@@ -0,0 +1,33 @@
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using XXCpzs.helper;
+using XXCpzs.Models;
+
+namespace XXCpzs.ViewModels
+{
+    class HuanHuoViewModel : BaseViewModel
+    {
+        public ObservableCollection<CauseItem> CauseItems { set; get; } = new ObservableCollection<CauseItem>();
+
+        public ObservableCollection<ResultModel> Items { set; get; }
+        public HuanHuoViewModel(int Uid)
+        {
+            Title = "产品换货登记";
+            Items = new ObservableCollection<ResultModel> { };
+            List<CauseItem> dt = HttpHelper.RefreshData<CauseItem>(17,
+               RestSharp.Method.POST,
+               new Dictionary<string, string>{
+                { "Uid", Uid.ToString() },
+                { "Type", "3" }
+            });
+            if (dt != null)
+            {
+                foreach (var item in dt)
+                {
+                    CauseItems.Add(item);
+                }
+            }
+        }
+    }
+
+}