新增一个提示窗体的显示

软件系统客户端Wpf/MainWindow.xaml

@@ -6,6 +6,7 @@
         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
         xmlns:local="clr-namespace:软件系统客户端Wpf"
         xmlns:y="clr-namespace:ClientsLibrary;assembly=ClientsLibrary"
+        xmlns:system="clr-namespace:System;assembly=mscorlib"
         mc:Ignorable="d"
         Title="MainWindow" Height="550" Width="825" WindowState="Maximized" Activated="Window_Activated" Closing="Window_Closing" ContentRendered="Window_ContentRendered" Initialized="Window_Initialized"
         Loaded="Window_Loaded"
@@ -34,6 +35,8 @@
             </Style>
         </ResourceDictionary>
     </Window.Resources>
+
+    <materialDesign:DialogHost x:Name="DialogHostWait">
         <Grid>
             <DockPanel>
                 <!--菜单项目-->
@@ -173,6 +176,10 @@
                                             Click="Button_BackMain_Click">
                                     主页
                                 </Button>
+                                <Button Style="{StaticResource MaterialDesignRaisedLightButton}" Grid.Column="1" Width="60" VerticalAlignment="Center"
+                                            Click="Button_Dialog_Click">
+                                    窗口测试
+                                </Button>
                             </StackPanel>
                         </Grid>
                     </GroupBox>
@@ -279,5 +286,14 @@
             
             </DockPanel>
             <materialDesign:Snackbar MessageQueue="{materialDesign:MessageQueue}" x:Name="SoftSnackbar" />
+
         </Grid>
+
+        <materialDesign:DialogHost.DialogContent>
+            <StackPanel Margin="16">
+                <ProgressBar Style="{DynamicResource MaterialDesignCircularProgressBar}" HorizontalAlignment="Center" Margin="16" IsIndeterminate="True" Value="0" />
+                <TextBlock>正在下载中...</TextBlock>
+            </StackPanel>
+        </materialDesign:DialogHost.DialogContent>
+    </materialDesign:DialogHost>
 </Window>

软件系统客户端Wpf/MainWindow.xaml.cs

@@ -749,5 +749,12 @@ namespace 软件系统客户端Wpf
             SetShowRenderControl(UIControl_Home);
         }
         
+        private async void Button_Dialog_Click(object sender, RoutedEventArgs e)
+        {
+            //点击了显示一个提示的窗体
+            DialogHostWait.IsOpen = true;
+            await Task.Delay(2000);
+            DialogHostWait.IsOpen = false;
+        }
     }
 }