List<RowStyle> rowStyles = new ArrayList<>();
时间: 2023-11-17 09:06:21 浏览: 32
This line of code creates a new ArrayList object called "rowStyles" that can hold objects of type "RowStyle". The "<>" notation indicates that this is a generic ArrayList, meaning it can hold any type of object as long as it is a subclass of "RowStyle". The "List" interface is implemented by ArrayList, which means that ArrayList can be used in any context where a List is expected.
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private static void export(HttpServletResponse response, File file, String fileName, Map<String, List<List<Object>>> sheetMap, Map<Integer, List<String>> selectMap) { // 整个 Excel 表格 book 对象 SXSSFWorkbook book = new SXSSFWorkbook(); // 每个 Sheet 页 Set<Entry<String, List<List<Object>>>> entries = sheetMap.entrySet(); for (Entry<String, List<List<Object>>> entry : entries) { List<List<Object>> sheetDataList = entry.getValue(); Sheet sheet = book.createSheet(entry.getKey()); // 创建合并算法数组 int rowLength = sheetDataList.size(); int columnLength = sheetDataList.get(0).size(); int[][] mergeArray = new int[rowLength][columnLength]; for (int i =0 ; i < sheetDataList.size(); i++) { // 每个 Sheet 页中的行数据 Row row = sheet.createRow(i); List<Object> rowList = sheetDataList.get(i); for (int j = 0; j < rowList.size(); j++) { // 每个行数据中的单元格数据 Object o = rowList.get(j); int v = 0; if (o instanceof URL) { // 如果要导出图片的话, 链接需要传递 URL 对象 setCellPicture(book, row, patriarch, i, j, (URL) o); } else { Cell cell = row.createCell(j); if (i == 0) { // 第一行为表头行,采用灰色底背景 v = setCellValue(cell, o, headStyle); } else { // 其他行为数据行,默认白底色 v = setCellValue(cell, o, rowStyle); } } mergeArray[i][j] = v; } } } } 我如何在这里获取档案名称的数据内容 并把相同的内容纵向合并起来呢
您可以使用一个 `Map` 来保存每个文件名对应的行数列表,然后在遍历行数据时,根据文件名获取相应的行数列表,将相同的文件名在纵向上进行合并。以下是修改后的代码示例:
```java
private static void export(HttpServletResponse response, File file, String fileName,
Map<String, List<List<Object>>> sheetMap, Map<Integer, List<String>> selectMap) {
// 整个 Excel 表格 book 对象
SXSSFWorkbook book = new SXSSFWorkbook();
// 每个 Sheet 页
Set<Entry<String, List<List<Object>>>> entries = sheetMap.entrySet();
for (Entry<String, List<List<Object>>> entry : entries) {
List<List<Object>> sheetDataList = entry.getValue();
Sheet sheet = book.createSheet(entry.getKey());
// 创建合并算法数组
int rowLength = sheetDataList.size();
int columnLength = sheetDataList.get(0).size();
int[][] mergeArray = new int[rowLength][columnLength];
// 保存每个文件名对应的行数列表
Map<String, List<Integer>> fileNameRowsMap = new HashMap<>();
for (int i = 0; i < sheetDataList.size(); i++) {
// 每个 Sheet 页中的行数据
Row row = sheet.createRow(i);
List<Object> rowList = sheetDataList.get(i);
String currentFileName = (String) rowList.get(0); // 假设文件名在第一列
// 获取当前文件名对应的行数列表
List<Integer> rows = fileNameRowsMap.get(currentFileName);
if (rows == null) {
rows = new ArrayList<>();
fileNameRowsMap.put(currentFileName, rows);
}
for (int j = 0; j < rowList.size(); j++) {
Object o = rowList.get(j);
int v = 0;
if (o instanceof URL) {
// 如果要导出图片的话, 链接需要传递 URL 对象
setCellPicture(book, row, patriarch, i, j, (URL) o);
} else {
Cell cell = row.createCell(j);
if (i == 0) {
// 第一行为表头行,采用灰色底背景
v = setCellValue(cell, o, headStyle);
} else {
// 其他行为数据行,默认白底色
v = setCellValue(cell, o, rowStyle);
}
}
mergeArray[i][j] = v;
}
// 将当前行数添加到对应的文件名行数列表中
rows.add(i);
}
// 纵向合并相同的文件名
for (List<Integer> rows : fileNameRowsMap.values()) {
if (rows.size() > 1) {
for (int column = 0; column < columnLength; column++) {
int startRow = rows.get(0);
int endRow = rows.get(rows.size() - 1);
sheet.addMergedRegion(new CellRangeAddress(startRow, endRow, column, column));
}
}
}
}
}
```
在这个示例中,我创建了一个 `fileNameRowsMap` 来保存每个文件名对应的行数列表。在遍历行数据时,我将当前行对应的文件名添加到对应的行数列表中。然后,我使用 `fileNameRowsMap` 进行纵向合并相同的文件名所在的行。请注意,这个示例假设文件名在每行数据的第一列。如果文件名在其他列上,请根据实际情况进行调整。
wpf <DataGridTemplateColumn> <DataGridTemplateColumn.CellTemplate> <DataTemplate> <CheckBox HorizontalAlignment="Center" VerticalAlignment="Center" IsChecked="{Binding IsCheck,UpdateSourceTrigger=PropertyChanged}" x:Name="DTCB" Command="{Binding DataContext.SelectedCommand, RelativeSource={RelativeSource AncestorType=UserControl}}" CommandParameter="{Binding Cad_No}"> <CheckBox.InputBindings> <MouseBinding MouseAction="LeftClick" /> </CheckBox.InputBindings> </CheckBox> </DataTemplate> </DataGridTemplateColumn.CellTemplate> </DataGridTemplateColumn>怎么从第二行开始设置mouseaction
你可以使用 `DataGrid.RowStyle` 来为每行设置样式,并在第二行及以后的行中添加 `MouseBinding`,如下所示:
```
<DataGrid.RowStyle>
<Style TargetType="DataGridRow">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type DataGridRow}">
<Border x:Name="DGR_Border" BorderThickness="1" BorderBrush="#E0E0E0" Margin="0,-1,0,0">
<SelectiveScrollingGrid>
<SelectiveScrollingGrid.ColumnDefinitions>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="*"/>
</SelectiveScrollingGrid.ColumnDefinitions>
<SelectiveScrollingGrid.RowDefinitions>
<RowDefinition Height="*"/>
<RowDefinition Height="Auto"/>
</SelectiveScrollingGrid.RowDefinitions>
<DataGridCellsPresenter SelectiveScrollingGrid.SelectiveScrollingOrientation="{Binding AreRowDetailsFrozen, ConverterParameter={x:Static SelectiveScrollingOrientation.Vertical}, Converter={x:Static DataGrid.RowDetailsScrollingConverter}, RelativeSource={RelativeSource AncestorType={x:Type DataGrid}}}" Grid.Column="1" x:Name="CellPresenter"/>
<DataGridDetailsPresenter SelectiveScrollingGrid.SelectiveScrollingOrientation="{Binding AreRowDetailsFrozen, ConverterParameter={x:Static SelectiveScrollingOrientation.Vertical}, Converter={x:Static DataGrid.RowDetailsScrollingConverter}, RelativeSource={RelativeSource AncestorType={x:Type DataGrid}}}" Grid.Column="1" Grid.Row="1" x:Name="DetailsPresenter"/>
<DataGridRowHeader Grid.RowSpan="2" SelectiveScrollingGrid.SelectiveScrollingOrientation="Vertical" x:Name="RowHeader"/>
</SelectiveScrollingGrid>
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsSelected" Value="True">
<Setter TargetName="DGR_Border" Property="Background" Value="#FFC5CBF9"/>
</Trigger>
<DataTrigger Binding="{Binding Cad_No}" Value="YOUR_VALUE_HERE">
<Setter TargetName="DTCB" Property="IsEnabled" Value="False"/>
</DataTrigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
<Style.Triggers>
<Trigger Property="AlternationIndex" Value="1">
<Setter Property="Background" Value="#FAFAFA"/>
</Trigger>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="Background" Value="#F2F2F2"/>
</Trigger>
<Trigger Property="IsSelected" Value="True">
<Setter Property="Background" Value="#FFC5CBF9"/>
</Trigger>
</Style.Triggers>
</Style>
</DataGrid.RowStyle>
```
在模板中,你需要使用 `ControlTemplate.Triggers` 来添加样式触发器。在这个例子中,我添加了一个数据触发器,当 `Cad_No` 的值等于你指定的值时,禁用 `CheckBox`。你需要将 `YOUR_VALUE_HERE` 替换为你想要使用的值。