Added example in TestApplication to handle two instances of the same …

…view, ensuring correct toast retrieval per instance.
V4SS3UR · Sep 26, 2024 · 6e4dfc0 · 6e4dfc0
1 parent c20c411
commit 6e4dfc0
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Showing 4 changed files with 36 additions and 15 deletions.
diff --git a/TestApplication/MVVM/View/MainWindow.xaml b/TestApplication/MVVM/View/MainWindow.xaml
@@ -46,6 +46,7 @@
                 <Button Content="Info" Command="{Binding InfoButtonCommand}"/>
                 <Button Content="CustomToast" Command="{Binding CustomToastButtonCommand}"/>
                 <Button Content="CustomView" Command="{Binding CustomViewButtonCommand}"/>
+                <Button Content="OpenNewApp" Command="{Binding OpenNewInstanceCommand}"/>
             </UniformGrid>
 
             <UniformGrid Rows="1">
@@ -56,11 +57,13 @@
                 <Border Background="#3000" CornerRadius="5" Margin="5">
                     <local:View2 Margin="5" Background="#8293A7"/>
                 </Border>
+
+                <Border Background="#3000" CornerRadius="5" Margin="5">
+                    <local:View2 Margin="5" Background="#8293A7"/>
+                </Border>
             </UniformGrid>
         </DockPanel>
 
-        <Border Background="White"/>
-
         <toast:Toast ToastName="MainWindowToast" HorizontalAlignment="Stretch" VerticalAlignment="Stretch"/>
 
     </Grid>

diff --git a/TestApplication/MVVM/View/MainWindow.xaml.cs b/TestApplication/MVVM/View/MainWindow.xaml.cs
@@ -21,9 +21,10 @@ public partial class MainWindow : Window
         public RelayCommand InfoButtonCommand { get; set; }
         public RelayCommand CustomToastButtonCommand { get; set; }
         public RelayCommand CustomViewButtonCommand { get; set; }
+        public RelayCommand OpenNewInstanceCommand { get; set; }
 
         private Toast toast 
-        { 
+        {
             get => Toast.GetToast("MainWindowToast"); 
         }
 
@@ -38,8 +39,6 @@ public MainWindow()
             InitializeComponent();
             this.DataContext = this;
 
-            var toast = Toast.GetToast("MainWindowToast");
-
             WarningButtonCommand = new RelayCommand((parameter) =>
             {
                 toast.ShowWarningToast("This is a warning toast", darkOverlay: DarkOverlay);
@@ -64,17 +63,26 @@ public MainWindow()
             {
                 ShowCustomView();
             });
+            OpenNewInstanceCommand = new RelayCommand((parameter) =>
+            {
+                var window = new MainWindow();
+                window.Show();
+            });
 
+            this.Loaded += MainWindow_Loaded;
+        }
 
+        private void MainWindow_Loaded(object sender, RoutedEventArgs e)
+        {
+            //Bring a welcome message when first loaded
+            var message = "Hi, welcome to ToastManager!";
+            var title = "Information";
 
-
-            this.Loaded += (sender, e) =>
+            try
             {
-                //Bring a welcome message when first loaded
-                var message = "Hi, welcome to ToastManager!";
-                var title = "Information";
                 toast.ShowInfoToast(message, title, darkOverlay: true);
-            };
+            }
+            catch { }
         }
 
         private void ShowCustomToast()

diff --git a/TestApplication/MVVM/View/View2.xaml b/TestApplication/MVVM/View/View2.xaml
@@ -22,7 +22,6 @@
             <Button Content="Info" Command="{Binding InfoButtonCommand}"/>
         </UniformGrid>
 
-
-        <toast:Toast ToastName="View2Toast" HorizontalAlignment="Stretch" VerticalAlignment="Stretch"/>
+        <toast:Toast ToastName="{Binding ToastNameWithGuid, RelativeSource={RelativeSource AncestorType={x:Type local:View2}}}" HorizontalAlignment="Stretch" VerticalAlignment="Stretch"/>
     </Grid>
 </UserControl>
diff --git a/TestApplication/MVVM/View/View2.xaml.cs b/TestApplication/MVVM/View/View2.xaml.cs
@@ -1,4 +1,5 @@
-using System.Collections.Specialized;
+using System;
+using System.Collections.Specialized;
 using System.ComponentModel;
 using System.Runtime.CompilerServices;
 using System.Windows.Controls;
@@ -17,9 +18,16 @@ public partial class View2 : UserControl, INotifyPropertyChanged
         public RelayCommand SuccessButtonCommand { get; set; }
         public RelayCommand InfoButtonCommand { get; set; }
 
+        private string _toastNameWithGuid; public string ToastNameWithGuid
+        {
+            get { return _toastNameWithGuid; }
+            set { _toastNameWithGuid = value; OnPropertyChanged(); }
+        }
+
+
         private Toast toast 
         { 
-            get => Toast.GetToast("View2Toast"); 
+            get => Toast.GetToast(this.ToastNameWithGuid); 
         }
 
         private bool _darkOverlay; public bool DarkOverlay 
@@ -33,6 +41,9 @@ public View2()
             InitializeComponent();
             this.DataContext = this;
 
+            var shortGuid = Convert.ToBase64String(Guid.NewGuid().ToByteArray());
+            ToastNameWithGuid = "View2Toast" + shortGuid;
+
             DarkOverlay = true;
 
             WarningButtonCommand = new RelayCommand((parameter) =>