添加到从Excel导入的对话框

Views/Dialogs/ImportExcelDialog.xaml

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+<ui:ContentDialog x:Class="PMSWPF.Views.Dialogs.ImportExcelDialog"
+                  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:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+                  xmlns:ui="http://schemas.inkore.net/lib/ui/wpf/modern"
+                  xmlns:vmd="clr-namespace:PMSWPF.ViewModels.Dialogs"
+                  Title="从Excel导入"
+                  CloseButtonText="取消"
+                  DefaultButton="Primary"
+                  PrimaryButtonText="导入"
+                  d:DataContext="{d:DesignInstance vmd:ImportExcelDialogViewModel}"
+                  mc:Ignorable="d"
+                  AllowDrop="True"
+                  DragEnter="Dialog_DragEnter"
+                  Drop="Dialog_Drop">
+
+    <Grid Margin="10">
+        <Grid.RowDefinitions>
+            <RowDefinition Height="Auto" />
+            <RowDefinition Height="*" />
+        </Grid.RowDefinitions>
+
+        <StackPanel Grid.Row="0">
+            <TextBlock HorizontalAlignment="Center"
+                       Text="拖放Excel文件到此处或选择文件" />
+            <Grid Margin="0,10,0,0">
+                <Grid.ColumnDefinitions>
+                    <ColumnDefinition Width="*" />
+                    <ColumnDefinition Width="Auto" />
+                </Grid.ColumnDefinitions>
+                <TextBox Grid.Column="0"
+                         VerticalAlignment="Center"
+                         Text="{Binding FilePath, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" />
+                <Button Grid.Column="1"
+                        Margin="5,0,0,0"
+                        Click="SelectFile_Click"
+                        Content="选择文件" />
+            </Grid>
+        </StackPanel>
+
+        <DataGrid Grid.Row="1"
+                  Margin="0,10,0,0"
+                  ItemsSource="{Binding VariableData}"
+                  AutoGenerateColumns="False"
+                  CanUserAddRows="False">
+            <DataGrid.Columns>
+                <DataGridTextColumn Header="名称" Binding="{Binding Name}" />
+                <DataGridTextColumn Header="数据类型" Binding="{Binding DataType}" />
+                <DataGridTextColumn Header="S7地址" Binding="{Binding S7Address}" />
+            </DataGrid.Columns>
+        </DataGrid>
+    </Grid>
+</ui:ContentDialog>

Views/Dialogs/ImportExcelDialog.xaml.cs

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+using Microsoft.Win32;
+using PMSWPF.ViewModels.Dialogs;
+using System.IO;
+using System.Windows;
+using iNKORE.UI.WPF.Modern.Controls;
+
+namespace PMSWPF.Views.Dialogs;
+
+public partial class ImportExcelDialog : ContentDialog
+{
+    public ImportExcelDialog(ImportExcelDialogViewModel viewModel)
+    {
+        InitializeComponent();
+        DataContext = viewModel;
+    }
+
+    private void Dialog_DragEnter(object sender, DragEventArgs e)
+    {
+        if (e.Data.GetDataPresent(DataFormats.FileDrop))
+        {
+            e.Effects = DragDropEffects.Copy;
+        }
+        else
+        {
+            e.Effects = DragDropEffects.None;
+        }
+    }
+
+    private void Dialog_Drop(object sender, DragEventArgs e)
+    {
+        if (e.Data.GetDataPresent(DataFormats.FileDrop))
+        {
+            string[] files = (string[])e.Data.GetData(DataFormats.FileDrop);
+            if (files.Length > 0)
+            {
+                string extension = Path.GetExtension(files[0]);
+                if (extension.Equals(".xls", StringComparison.OrdinalIgnoreCase) || 
+                    extension.Equals(".xlsx", StringComparison.OrdinalIgnoreCase))
+                {
+                    if (DataContext is ImportExcelDialogViewModel viewModel)
+                    {
+                        viewModel.FilePath = files[0];
+                    }
+                }
+                else
+                {
+                    // MessageBox.Show("Please drop a valid Excel file (.xls or .xlsx).", "Invalid File Type", MessageBoxButton.OK, MessageBoxImage.Error);
+                }
+            }
+        }
+    }
+
+    private void SelectFile_Click(object sender, RoutedEventArgs e)
+    {
+        var openFileDialog = new OpenFileDialog
+        {
+            Filter = "Excel Files (*.xlsx)|*.xlsx|All files (*.*)|*.*"
+        };
+        if (openFileDialog.ShowDialog() == true)
+        {
+            if (DataContext is ImportExcelDialogViewModel viewModel)
+            {
+                viewModel.FilePath = openFileDialog.FileName;
+            }
+        }
+    }
+}