makes public the ViewModel's

BookAStar/BookAStar/ViewModels/BillingLineViewModel.cs

@@ -1,16 +1,11 @@
 using BookAStar.Interfaces;
 using BookAStar.Model.Workflow;
 using System;
-using System.Collections.Generic;
-using System.Diagnostics;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 using XLabs.Forms.Mvvm;
 
 namespace BookAStar.ViewModels
 {
-    class BillingLineViewModel : ViewModel, IBillingLine
+    public class BillingLineViewModel : ViewModel, IBillingLine
     {
         public BillingLineViewModel(BillingLine data)
         {

BookAStar/BookAStar/ViewModels/BookQueriesViewModel.cs

@@ -6,11 +6,17 @@ using System.Collections.ObjectModel;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
+using System.Windows.Input;
 
 namespace BookAStar.ViewModels
 {
-    class BookQueriesViewModel : XLabs.Forms.Mvvm.ViewModel
+    public class BookQueriesViewModel : XLabs.Forms.Mvvm.ViewModel
     {
+        public BookQueriesViewModel()
+        {
+
+        }
+
         public ObservableCollection<BookQueryData> Queries
         {
             get
@@ -18,5 +24,10 @@ namespace BookAStar.ViewModels
                 return DataManager.Current.BookQueries;
             }
         }
+
+        public ICommand RefreshQueries
+        {
+            get { return DataManager.Current.BookQueries; }
+        }
     }
 }

BookAStar/BookAStar/ViewModels/EstimateViewModel.cs

@@ -1,9 +1,4 @@
-using BookAStar.Model.Interfaces;
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
+using System.Collections.Generic;
 using XLabs.Forms.Mvvm;
 using BookAStar.Model.Workflow;
 using System.Collections.ObjectModel;
@@ -11,11 +6,15 @@ using BookAStar.Model;
 
 namespace BookAStar.ViewModels
 {
-    class EstimateViewModel : ViewModel
+    public class EstimateViewModel : ViewModel
     {
         public EstimateViewModel(Estimate data)
         {
             estimate = data;
+            
+            if (data.AttachedFiles == null) data.AttachedFiles = new List<string>();
+            if (data.AttachedGraphicList == null) data.AttachedGraphicList = new List<string>();
+            if (data.Bill == null) data.Bill = new List<BillingLine>();
             AttachedFiles = new ObservableCollection<string>(data.AttachedFiles);
             AttachedGraphicList = new ObservableCollection<string>(data.AttachedGraphicList);
             Bill = new ObservableCollection<BillingLine>(data.Bill);