优化 UI 组件和提示信息格式

在 `MarkdownWpfRenderer.cs` 中，修改 `RenderHtmlBlock` 方法以支持 `<think>` 标签，返回包含进度条的 `Expander` 控件或直接返回文本块。更新 `PromptUtil.cs` 中的 `UsePrompt` 方法，增加当前时间和用户提问的 Excel 列信息格式。

在 `App.xaml` 中移除 `ThemeDictionary` 的 `ColorMode` 属性，简化主题定义。重构 `AiMessageControll.xaml` 的 UI，使用 `DockPanel` 和 `ButtonGroup`，并增加分隔线。

在 `ImportExcelPage.xaml` 中添加上下文菜单，调整 `TabControl` 和 `DataGrid` 属性以支持虚拟化，重构参数配置 UI，使用 `hc:Card` 和 `DockPanel` 结构。

在 `ImportExcelPage.xaml.cs` 中添加按钮点击事件处理程序以切换配置显示状态。在 `ImportViewModel.cs` 中更新 AI 消息处理逻辑，使用新提示格式，并添加 `_showConfig` 属性及其文档注释。

src/EleCho.MdViewer/src/EleCho.MdViewer/Markdown/MarkdownWpfRenderer.cs

@@ -379,19 +379,22 @@ public class MarkdownWpfRenderer
         if (text.StartsWith("<think>"))
         {
             text = text.Replace("<think>", "").Replace("</think>", "");
-        }
             var htmlText = new SelectableTextBlock();
             htmlText.Text = text;
             var expander = new Expander();
             var header = new StackPanel();
-        header.Orientation = Orientation.Horizontal;
+            header.Children.Add(new ProgressBar() { IsIndeterminate = true, Width = 30 });
-        header.HorizontalAlignment = HorizontalAlignment.Center;
-        header.Children.Add(new TextBlock() { Text="思考内容",Margin = new Thickness(0,0,5,0) });
-        //header.Children.Add(new ProgressBar() { IsIndeterminate = true,Width = 30,Height= 5 });
             expander.Header = header;
-        expander.IsExpanded = false;
             expander.Content = htmlText;
             return expander;
+        }
+        else
+        {
+            var htmlText = new SelectableTextBlock();
+            htmlText.Text = text;
+            return htmlText;
+        }
+        
 
     }
     public FrameworkElement RenderMathBlock(MathBlock mathBlock, CancellationToken cancellationToken)

src/ExcelHelper/AI/PromptUtil.cs

@@ -11,24 +11,47 @@ class PromptUtil
     public static string UsePrompt(string msg,string excelPrompt)
     {
         return $@"
-你是一个Excel和WPS公式大师，你需要帮助用户解答Excel与WPS公式相关的问题。
+你将扮演一位Excel公式大师，帮助用户解答Excel公式相关的问题。
+
+当前时间是：
+
+<current_time>
+
+{DateTime.Now}
+
+</current_time>
+
+当前用户提问的excel文件列信息为：
+
+<excel_columns>
+
+{excelPrompt}
+
+</excel_columns>
+
+用户的问题是：
+
+<question>
+
+{msg}
+
+</question>
+
+在回复用户的问题时，你需要遵守以下规则：
 
-你在回复用户的问题时，需要遵守以下规则：
 1. 优先保证答案的准确性，其次是简洁明了。
+
 2. 需要保证你的回答是有逻辑性的，不要让用户感到困惑。
+
 3. 可以例举1到2个例子来帮助用户更好地理解你的回答中的Excel公式。
+
 4. 一定要保证文档格式的正确性，避免出现无法显示的内容。
+
 5. 尽量使用比较简短与易懂的公式来回答用户的问题，避免用户无法理解。
- 6. 你一定要使用<think>开始告诉用户的思考，并使用</think>结束你的思考。
+6. 当你输出公式时，请使用以下格式进行输出：
- 7. 当你输出公式时，请使用以下格式进行输出：
     ```Excel_{{列}}
     =SUM(A1:A100)
-    ```
-现在的时间是{DateTime.Now}。
 
-当前用户提问的excel文件列信息为：{excelPrompt}
-
-用户的问题是：{msg}
 ";
     }
 }

src/ExcelHelper/App.xaml

@@ -12,7 +12,7 @@
                 <ResourceDictionary Source="pack://application:,,,/HandyControl;component/Themes/SkinDefault.xaml" />
                 <ResourceDictionary Source="pack://application:,,,/HandyControl;component/Themes/Theme.xaml" />
                 <mu:ControlsDictionary />
-                <mu:ThemeDictionary ColorMode="Light" />
+                <mu:ThemeDictionary />
             </ResourceDictionary.MergedDictionaries>
 
         </ResourceDictionary>

src/ExcelHelper/Views/Components/AiMessageControll.xaml

@@ -3,6 +3,7 @@
     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
     xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+    xmlns:hc="https://handyorg.github.io/handycontrol"
     xmlns:local="clr-namespace:ExcelHelper.Views.Components"
     xmlns:local1="clr-namespace:ExcelHelper.Converter"
     xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
@@ -87,6 +88,15 @@
                                     </TabItem>
                                 </TabControl>
 
+                                <DockPanel>
+                                    <hc:ButtonGroup Margin="5,0">
+                                        <Button
+                                            Height="20"
+                                            hc:IconElement.Geometry="{StaticResource WindowRestoreGeometry}"
+                                            Background="Transparent"
+                                            FontSize="10"
+                                            Foreground="#99000000" />
+                                    </hc:ButtonGroup>
                                     <StackPanel HorizontalAlignment="Right" Orientation="Horizontal">
                                         <TextBlock
                                             Margin="0,5,5,0"
@@ -99,6 +109,13 @@
                                             Foreground="#99000000"
                                             Text="{Binding Timestamp, StringFormat='{}{0:HH:mm}'}" />
                                     </StackPanel>
+                                </DockPanel>
+                                <hc:Divider
+                                    Height="10"
+                                    Margin="0,3"
+                                    LineStroke="#000"
+                                    LineStrokeThickness="2"
+                                    Visibility="{Binding IsUser, Converter={StaticResource Boolean2VisibilityReConverter}}" />
                             </StackPanel>
                         </Border>
                     </DataTemplate>
@@ -107,46 +124,53 @@
         </ScrollViewer>
 
         <!--  输入区  -->
-        <Grid Grid.Row="1" Margin="5">
-            <Grid.ColumnDefinitions>
-                <ColumnDefinition Width="*" />
-                <ColumnDefinition Width="Auto" />
-            </Grid.ColumnDefinitions>
-
         <Border
-                Grid.Column="0"
+            Grid.Row="1"
-                BorderBrush="#CCCCCC"
+            Margin="8"
-                BorderThickness="1"
+            Padding="5"
-                CornerRadius="5">
+            Background="Transparent"
+            BorderBrush="#000"
+            BorderThickness="2"
+            CornerRadius="3">
 
+            <StackPanel Grid.Row="1" Background="White">
                 <TextBox
                     x:Name="MessageInput"
                     MinHeight="40"
                     MaxHeight="120"
                     Padding="8"
                     AcceptsReturn="True"
+                    Background="Transparent"
                     BorderThickness="0"
                     IsEnabled="{Binding IsWaiting, Converter={StaticResource InverseBoolConverter}, UpdateSourceTrigger=PropertyChanged, ElementName=userControl}"
                     KeyDown="MessageInput_KeyDown"
                     Text="{Binding CurrentMessage, UpdateSourceTrigger=PropertyChanged, ElementName=userControl}"
                     TextWrapping="Wrap"
                     VerticalScrollBarVisibility="Auto" />
-            </Border>
+                <DockPanel>
-
+                    <hc:ComboBox Height="30" SelectedIndex="1">
+                        <ComboBoxItem Content="DeepSeek-V3" />
+                        <ComboBoxItem Content="DeepSeek-V3" />
+                        <ComboBoxItem Content="DeepSeek-V3" />
+                    </hc:ComboBox>
                     <Button
-                Grid.Column="1"
+                        Height="30"
-                Height="40"
+                        Margin="5"
-                Margin="5,0,0,0"
                         Padding="15,0"
+                        HorizontalAlignment="Right"
                         Background="#000"
                         BorderBrush="Transparent"
                         BorderThickness="0"
                         Click="SendButton_Click"
-                Content="发送"
+                        Content="发送 ✈"
                         Foreground="White"
                         IsEnabled="{Binding IsWaiting, Converter={StaticResource InverseBoolConverter}, UpdateSourceTrigger=PropertyChanged, ElementName=userControl}" />
-        </Grid>
 
+                </DockPanel>
+
+            </StackPanel>
+
+        </Border>
         <!--  等待指示器  -->
         <Border
             Grid.Row="1"

src/ExcelHelper/Views/Pages/ImportExcelPage.xaml

@@ -46,6 +46,10 @@
 
             </Grid>
         </DataTemplate>
+        <ContextMenu x:Key="DataGridContextMenu">
+            <MenuItem Header="问这一行数据" />
+            <MenuItem Header="问这一行数据" />
+        </ContextMenu>
     </Page.Resources>
     <Grid
         AllowDrop="True"
@@ -82,22 +86,25 @@
             Visibility="{Binding IsLoading, Converter={StaticResource BooleanToVisibilityConverter}}" />
         <hc:TabControl
             Grid.Column="0"
+            Grid.ColumnSpan="2"
             Margin="5,5,7,5"
             ShowCloseButton="False"
             ShowContextMenu="False">
             <hc:TabItem Header="预览">
                 <DataGrid
                     x:Name="ExcelDataPreviewGrid"
+                    hc:DataGridAttach.CanUnselectAllWithBlankArea="True"
+                    hc:DataGridAttach.ShowRowNumber="True"
+                    hc:DataGridAttach.ShowSelectAllButton="True"
                     AutoGenerateColumns="False"
+                    ContextMenu="{StaticResource DataGridContextMenu}"
                     EnableColumnVirtualization="True"
                     EnableRowVirtualization="True"
                     IsReadOnly="True"
                     ItemsSource="{Binding ExcelData, IsAsync=True}"
                     RowHeight="NaN"
                     ScrollViewer.CanContentScroll="True"
-                    VirtualizingPanel.IsContainerVirtualizable="True"
+                    VirtualizingPanel.ScrollUnit="Pixel" />
-                    VirtualizingPanel.IsVirtualizing="True"
-                    VirtualizingPanel.VirtualizationMode="Recycling" />
             </hc:TabItem>
 
             <hc:TabItem Header="Columns2Prompt">
@@ -126,38 +133,38 @@
                 </Grid>
             </hc:TabItem>
         </hc:TabControl>
-        <GridSplitter
+
-            Grid.Column="0"
-            Width="2"
-            Margin="0,5" />
         <hc:Card
+            x:Name="ConfigCard"
             Grid.Column="1"
             Width="Auto"
+            Height="Auto"
             Margin="5"
-            HorizontalAlignment="Stretch">
+            HorizontalAlignment="Right"
+            VerticalAlignment="Bottom"
+            Opacity="0.95">
             <hc:Card.Header>
-                <hc:SimpleStackPanel
+                <DockPanel Margin="5">
-                    Margin="5"
-                    HorizontalAlignment="Center"
-                    Orientation="Horizontal">
                     <TextBlock
                         Margin="5,0"
+                        HorizontalAlignment="Center"
                         VerticalAlignment="Center"
                         Text="参数配置" />
+
                     <Button
-                        VerticalAlignment="Center"
+                        HorizontalAlignment="Right"
-                        Command="{Binding ReLoadExcelCommand}"
+                        Click="Button_Click_1"
-                        Content="重新读取Excel"
+                        Content="▼"
-                        Style="{StaticResource ButtonPrimary}" />
+                        DockPanel.Dock="Left" />
-                </hc:SimpleStackPanel>
+                </DockPanel>
             </hc:Card.Header>
+            <hc:TransitioningContentControl TransitionMode="Bottom2Top" Visibility="{Binding ShowConfig, Converter={StaticResource BooleanToVisibilityConverter}}">
                 <hc:SimpleStackPanel SnapsToDevicePixels="True">
                     <hc:SimpleStackPanel.Resources>
                         <Style TargetType="{x:Type hc:SimpleStackPanel}">
                             <Setter Property="Margin" Value="5,5" />
                         </Style>
                     </hc:SimpleStackPanel.Resources>
-
                     <hc:SimpleStackPanel Orientation="Horizontal">
                         <Label Content="指定的Sheet：" />
                         <hc:ComboBox
@@ -206,12 +213,22 @@
                             ItemsSource="{Binding ExcelFiles}"
                             SelectedValue="{Binding CurrentFilePath}" />
                     </hc:SimpleStackPanel>
-                <hc:SimpleStackPanel IsEnabled="False" Orientation="Horizontal">
+                    <hc:SimpleStackPanel
+                        IsEnabled="False"
+                        Orientation="Horizontal"
+                        ToolTip="暂不支持加密的Excel">
                         <Label Content="Excel密码：" />
                         <PasswordBox MinWidth="60" utils:PasswordBoxHelper.Password="{Binding ExcelPassword, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" />
                         <Button Content="?" ToolTip="未加密留空，多个Excel如果不同密码请分批次导入" />
                     </hc:SimpleStackPanel>
+                    <Button
+                        HorizontalAlignment="Center"
+                        VerticalAlignment="Center"
+                        Command="{Binding ReLoadExcelCommand}"
+                        Content="重新读取Excel"
+                        Style="{StaticResource ButtonPrimary}" />
                 </hc:SimpleStackPanel>
+            </hc:TransitioningContentControl>
         </hc:Card>
         <hc:Card Grid.Column="2">
             <!--  Fix: Added Mode=OneWay  -->

src/ExcelHelper/Views/Pages/ImportExcelPage.xaml.cs

@@ -117,4 +117,9 @@ public partial class ImportExcelPage : Page, IView, IRecipient<UpdateDataGridCol
         // 标记事件已处理，防止冒泡
         e.Handled = true;
     }
+
+    private void Button_Click_1(object sender, System.Windows.RoutedEventArgs e)
+    {
+        ViewModel.ShowConfig = !ViewModel.ShowConfig;
+    }
 }

src/ExcelHelper/Views/ViewModels/ImportViewModel.cs

@@ -321,8 +321,9 @@ public partial class ImportViewModel : ObservableRecipient, IViewModel
             };
            
             Messages.Add(aiChat);
+            var promptedMsg = PromptUtil.UsePrompt(message,ExcelPromptString);
 #if DEBUG
-            var results = TEST_AI_CONTENT.Split('\n');
+            var results = promptedMsg.Split('\n');
             foreach(var result in results)
             {
                 aiChat.Content += result;
@@ -330,7 +331,6 @@ public partial class ImportViewModel : ObservableRecipient, IViewModel
                 await Task.Delay(5);
             }
 #else
-            var promptedMsg = PromptUtil.UsePrompt(message,ExcelPromptString);
             history.Add(new Microsoft.Extensions.AI.ChatMessage
             {
                 Role = Microsoft.Extensions.AI.ChatRole.User,
@@ -449,6 +449,13 @@ public partial class ImportViewModel : ObservableRecipient, IViewModel
     [ObservableProperty]
     private string _dbType;
 
+
+    /// <summary>
+    /// 是否显示配置信息
+    /// </summary>
+    [ObservableProperty]
+    private bool _showConfig = false;
+
     /// <summary>
     /// 加密连接
     /// </summary>