允许排序

TodoList/Views/MainWindow.xaml

@@ -22,6 +22,22 @@
             </ObjectDataProvider.MethodParameters>
         </ObjectDataProvider>
         
+        <ObjectDataProvider x:Key="SortByEnum" MethodName="GetValues"
+                            ObjectType="{x:Type sys:Enum}"
+                            xmlns:sys="clr-namespace:System;assembly=mscorlib">
+            <ObjectDataProvider.MethodParameters>
+                <x:Type TypeName="models:SortBy"/>
+            </ObjectDataProvider.MethodParameters>
+        </ObjectDataProvider>
+        
+        <ObjectDataProvider x:Key="SortOrderEnum" MethodName="GetValues"
+                            ObjectType="{x:Type sys:Enum}"
+                            xmlns:sys="clr-namespace:System;assembly=mscorlib">
+            <ObjectDataProvider.MethodParameters>
+                <x:Type TypeName="models:SortOrder"/>
+            </ObjectDataProvider.MethodParameters>
+        </ObjectDataProvider>
+        
         <Style x:Key="ModernButton" TargetType="Button">
             <Setter Property="Background" Value="#007AFF"/>
             <Setter Property="Foreground" Value="White"/>
@@ -62,11 +78,32 @@
                     <ColumnDefinition Width="*"/>
                     <ColumnDefinition Width="Auto"/>
                     <ColumnDefinition Width="Auto"/>
+                    <ColumnDefinition Width="Auto"/>
+                    <ColumnDefinition Width="Auto"/>
                 </Grid.ColumnDefinitions>
                 
-                <TextBlock Text="我的待办" FontSize="24" FontWeight="Bold" Foreground="#333"/>
+                <StackPanel Grid.Column="1" Orientation="Horizontal" Margin="10,0,15,0" VerticalAlignment="Center">
+                    <ComboBox ItemsSource="{Binding Source={StaticResource SortByEnum}}"
+                              SelectedItem="{Binding SortBy}"
+                              Width="90" VerticalContentAlignment="Center" Margin="0,0,5,0">
+                        <ComboBox.ItemTemplate>
+                            <DataTemplate>
+                                <TextBlock Text="{Binding Converter={StaticResource EnumDescConverter}}"/>
+                            </DataTemplate>
+                        </ComboBox.ItemTemplate>
+                    </ComboBox>
+                    <ComboBox ItemsSource="{Binding Source={StaticResource SortOrderEnum}}"
+                              SelectedItem="{Binding SortOrder}"
+                              Width="60" VerticalContentAlignment="Center">
+                        <ComboBox.ItemTemplate>
+                            <DataTemplate>
+                                <TextBlock Text="{Binding Converter={StaticResource EnumDescConverter}}"/>
+                            </DataTemplate>
+                        </ComboBox.ItemTemplate>
+                    </ComboBox>
+                </StackPanel>
                 
-                <Button Grid.Column="1" Content="设置快捷键" 
+                <Button Grid.Column="2" Content="设置快捷键" 
                         Command="{Binding OpenSettingsCommand}"
                         Background="Transparent" Foreground="#007AFF" Margin="0,0,15,0">
                     <Button.Template>
@@ -76,7 +113,7 @@
                     </Button.Template>
                 </Button>
 
-                <CheckBox Grid.Column="2" Content="显示已完成" 
+                <CheckBox Grid.Column="3" Content="显示已完成" 
                           IsChecked="{Binding ShowCompleted}"
                           VerticalAlignment="Center" Foreground="#555"/>
             </Grid>