添加项目文件。

XXCpzs/ViewModels/SearchViewModel.cs

@@ -0,0 +1,69 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Windows.Input;
+using Xamarin.Forms;
+using XXCpzs.helper;
+using XXCpzs.Models;
+using XXCpzs.Services;
+using XXCpzs.Views;
+
+namespace XXCpzs.ViewModels
+{
+    class SearchViewModel : BaseViewModel
+    {
+
+        public ICommand PerformSearch => new Command<string>((string query) =>
+        {
+            SearchResults = CustomerDataService.GetSearchResults(query);
+        });
+
+        List<Customer> searchResults = CustomerDataService.Fruits;
+        public List<Customer> SearchResults
+        {
+            get
+            {
+                return searchResults;
+            }
+            set
+            {
+                searchResults = value;
+                OnPropertyChanged();
+                //NotifyPropertyChanged();
+            }
+        }
+
+        private int deviceId = 1;
+        private PageCustomerSelect pageCustomerSelect;
+
+        public SearchViewModel(int Uid, PageCustomerSelect pageCustomerSelect)  
+        {
+            this.pageCustomerSelect = pageCustomerSelect;
+            Title = "客户选择";
+            this.pageCustomerSelect = pageCustomerSelect;
+            var dt = HttpHelper.RefreshData<Customer>(15,
+                RestSharp.Method.POST,
+                new Dictionary<string, string>{
+                { "Uid", Uid.ToString() },
+                { "deviceId", deviceId.ToString() }
+            });
+            if (dt != null)
+            {
+                foreach (var item in dt)
+                {
+                    CustomerDataService.Fruits.Add(item);
+                }
+            }
+            MessagingCenter.Subscribe<PageAddCustomer, Customer>(this, "AddCustomer", async (obj, item) =>
+            {
+                var newItem = item as Customer;
+                Console.WriteLine(">>>>>>>>>" + item.company);
+
+                CustomerDataService.AddItem(newItem);
+                pageCustomerSelect.Refresh();
+            });
+
+        }
+
+    }
+}