添加项目文件。

SamplePreSystem.UI/Views/SampleManager/chirld/ImportSampleWindow.xaml

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+<local:BaseWindow
+    x:Class="SamplePre.UIWpf.ParamManager.chirld.ImportSampleWindow"
+    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:local="clr-namespace:SamplePre.UIWpf.BaseWindows"
+    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+    Title="导入历史样品"
+    Width="900"
+    Height="650"
+    ResizeMode="NoResize"
+    WindowStartupLocation="CenterScreen"
+    mc:Ignorable="d">
+    <Grid>
+        <Grid.RowDefinitions>
+            <RowDefinition Height="40" />
+            <RowDefinition Height="*" />
+        </Grid.RowDefinitions>
+
+        <StackPanel Margin="10,0" Orientation="Horizontal">
+            <FrameworkElement x:Name="DataContextProxy" Visibility="Collapsed" />
+
+            <TextBlock VerticalAlignment="Center" Text="时间：" />
+            <DatePicker
+                Width="140"
+                Height="40"
+                Margin="10,0"
+                HorizontalContentAlignment="Center"
+                VerticalContentAlignment="Center"
+                SelectedDate="{Binding StartDate}" />
+            <TextBlock VerticalAlignment="Center" Text="—" />
+            <DatePicker
+                Width="140"
+                Height="40"
+                Margin="10,0"
+                HorizontalContentAlignment="Center"
+                VerticalContentAlignment="Center"
+                SelectedDate="{Binding EndDate}" />
+
+
+            <Button
+                x:Name="btnFind"
+                Width="100"
+                Height="30"
+                Margin="15,0,5,0"
+                Command="{Binding FindClickCommand}"
+                Content="查询" />
+            <Button
+                x:Name="btnImport"
+                Width="100"
+                Height="30"
+                Margin="5,0"
+                Command="{Binding ImportClickCommand}"
+                Content="导入" />
+        </StackPanel>
+        <!--  样品列表  -->
+        <DataGrid
+            x:Name="dg_samples"
+            Grid.Row="1"
+            Margin="5"
+            AutoGenerateColumns="False"
+            Background="White"
+            CanUserAddRows="False"
+            CanUserSortColumns="True"
+            FrozenColumnCount="1"
+            HorizontalScrollBarVisibility="Auto"
+            ItemsSource="{Binding SampleList}"
+            SelectionMode="Extended"
+            VerticalScrollBarVisibility="Auto">
+
+
+
+            <!--  分组样式  -->
+            <DataGrid.GroupStyle>
+                <GroupStyle>
+                    <GroupStyle.HeaderTemplate>
+                        <DataTemplate>
+                            <DockPanel Height="25" LastChildFill="True">
+                                <Border Background="Transparent">
+                                    <CheckBox
+                                        Command="{Binding DataContext.CheckBoxClickCommand, Source={x:Reference DataContextProxy}}"
+                                        CommandParameter="{Binding RelativeSource={RelativeSource Self}}"
+                                        Content="{Binding Name}"
+                                        FontWeight="Bold"
+                                        IsChecked="{Binding DataContext.IsGroupSelected, Source={x:Reference DataContextProxy}}" />
+                                </Border>
+
+                                <!--<TextBlock
+                                    Margin="5,0"
+                                    HorizontalAlignment="Left"
+                                    VerticalAlignment="Center"
+                                    FontWeight="Bold"
+                                    Text="{Binding Name}" />-->
+                            </DockPanel>
+                        </DataTemplate>
+                    </GroupStyle.HeaderTemplate>
+                </GroupStyle>
+            </DataGrid.GroupStyle>
+
+            <DataGrid.Columns>
+                <!--  列头复选框样式  -->
+                <DataGridCheckBoxColumn Binding="{Binding IsSelected, UpdateSourceTrigger=PropertyChanged}">
+                    <DataGridCheckBoxColumn.Header>
+                        <Border Background="Transparent">
+                            <CheckBox IsChecked="{Binding DataContext.IsAllItems1Selected, Source={x:Reference DataContextProxy}}" />
+                        </Border>
+                    </DataGridCheckBoxColumn.Header>
+                    <DataGridCheckBoxColumn.HeaderStyle>
+                        <Style BasedOn="{StaticResource MaterialDesignDataGridColumnHeader}" TargetType="{x:Type DataGridColumnHeader}">
+                            <Setter Property="HorizontalContentAlignment" Value="Center" />
+                        </Style>
+                    </DataGridCheckBoxColumn.HeaderStyle>
+                </DataGridCheckBoxColumn>
+
+                <DataGridTextColumn
+                    Width="*"
+                    Binding="{Binding qrcode}"
+                    Header="二维码"
+                    IsReadOnly="True" />
+                <DataGridTextColumn
+                    Width="*"
+                    Binding="{Binding item_name}"
+                    Header="样品名称"
+                    IsReadOnly="True" />
+                <DataGridTextColumn
+                    Width="*"
+                    Binding="{Binding standrad}"
+                    Header="标准"
+                    IsReadOnly="True" />
+                <DataGridTextColumn
+                    Width="*"
+                    Binding="{Binding input_date}"
+                    Header="录入日期"
+                    IsReadOnly="False" />
+                <DataGridTextColumn
+                    Width="*"
+                    Binding="{Binding bach_no}"
+                    Header="批次"
+                    IsReadOnly="True" />
+            </DataGrid.Columns>
+        </DataGrid>
+
+    </Grid>
+</local:BaseWindow>