从 DataTable 构建表
通常,您的应用程序将从数据库中提取数据并将其以 DataTable 的形式存储。您可以轻松地将此数据作为新表格插入到文档中,并快速将格式应用于整个表格。
使用 Aspose.Words,您可以轻松地从数据库中检索数据并将其存储为表:
- 在 Document 上创建一个新的 DocumentBuilder 对象。
- 使用 DocumentBuilder 启动一个新表。
- 如果我们想插入 DataTable 中每一列的名称作为标题行,则迭代每个数据列并将列名称写入表中的一行。
- 迭代 DataTable 中的每个 DataRow:
- 迭代 DataRow 中的每个对象。
- 使用 DocumentBuilder 将对象插入到文档中。使用的方法取决于要插入的对象的类型,例如用于文本的 DocumentBuilder.Writeln 和用于表示图像的字节数组的 DocumentBuilder.InsertImage。
- 在 DataRow 处理结束时,DocumentBuilder 使用 DocumentBuilder.EndRow 创建的行也结束。
- 处理完 DataTable 中的所有行后,通过调用 DocumentBuilder.EndTable 完成该表。
- 最后,我们可以使用适当的表格属性之一(例如 Table.StyleIdentifier)设置所需的表格样式,以自动将格式应用于整个表格。
ImportTableFromDataTable 方法接受 DocumentBuilder 对象、包含数据的 DataTable 以及指定 DataTable 中的列标题是否包含在表顶部的标志。此方法使用构建器的当前位置和格式根据这些参数构建表格。提供一种从 DataTable 导入数据并使用 DocumentBuilder 将其插入新表的方法。
本示例使用了 DataTable 中的以下数据:

以下代码示例展示了如何在 Aspose.Words 中执行上述算法:
| // For complete examples and data files, please go to https://github.com/aspose-words/Aspose.Words-for-.NET.git. | |
| /// <summary> | |
| /// Imports the content from the specified DataTable into a new Aspose.Words Table object. | |
| /// The table is inserted at the document builder's current position and using the current builder's formatting if any is defined. | |
| /// </summary> | |
| public Table ImportTableFromDataTable(DocumentBuilder builder, DataTable dataTable, | |
| bool importColumnHeadings) | |
| { | |
| Table table = builder.StartTable(); | |
| // Check if the columns' names from the data source are to be included in a header row. | |
| if (importColumnHeadings) | |
| { | |
| // Store the original values of these properties before changing them. | |
| bool boldValue = builder.Font.Bold; | |
| ParagraphAlignment paragraphAlignmentValue = builder.ParagraphFormat.Alignment; | |
| // Format the heading row with the appropriate properties. | |
| builder.Font.Bold = true; | |
| builder.ParagraphFormat.Alignment = ParagraphAlignment.Center; | |
| // Create a new row and insert the name of each column into the first row of the table. | |
| foreach (DataColumn column in dataTable.Columns) | |
| { | |
| builder.InsertCell(); | |
| builder.Writeln(column.ColumnName); | |
| } | |
| builder.EndRow(); | |
| // Restore the original formatting. | |
| builder.Font.Bold = boldValue; | |
| builder.ParagraphFormat.Alignment = paragraphAlignmentValue; | |
| } | |
| foreach (DataRow dataRow in dataTable.Rows) | |
| { | |
| foreach (object item in dataRow.ItemArray) | |
| { | |
| // Insert a new cell for each object. | |
| builder.InsertCell(); | |
| switch (item.GetType().Name) | |
| { | |
| case "DateTime": | |
| // Define a custom format for dates and times. | |
| DateTime dateTime = (DateTime) item; | |
| builder.Write(dateTime.ToString("MMMM d, yyyy")); | |
| break; | |
| default: | |
| // By default any other item will be inserted as text. | |
| builder.Write(item.ToString()); | |
| break; | |
| } | |
| } | |
| // After we insert all the data from the current record, we can end the table row. | |
| builder.EndRow(); | |
| } | |
| // We have finished inserting all the data from the DataTable, we can end the table. | |
| builder.EndTable(); | |
| return table; | |
| } |
然后可以使用 DocumentBuilder 和数据轻松调用该方法。
以下代码示例演示如何从 DataTable 导入数据并将其插入到文档中的新表中:
| // For complete examples and data files, please go to https://github.com/aspose-words/Aspose.Words-for-.NET.git. | |
| Document doc = new Document(); | |
| // We can position where we want the table to be inserted and specify any extra formatting to the table. | |
| DocumentBuilder builder = new DocumentBuilder(doc); | |
| // We want to rotate the page landscape as we expect a wide table. | |
| doc.FirstSection.PageSetup.Orientation = Orientation.Landscape; | |
| DataSet ds = new DataSet(); | |
| ds.ReadXml(MyDir + "List of people.xml"); | |
| // Retrieve the data from our data source, which is stored as a DataTable. | |
| DataTable dataTable = ds.Tables[0]; | |
| // Build a table in the document from the data contained in the DataTable. | |
| Table table = ImportTableFromDataTable(builder, dataTable, true); | |
| // We can apply a table style as a very quick way to apply formatting to the entire table. | |
| table.StyleIdentifier = StyleIdentifier.MediumList2Accent1; | |
| table.StyleOptions = TableStyleOptions.FirstRow | TableStyleOptions.RowBands | TableStyleOptions.LastColumn; | |
| // For our table, we want to remove the heading for the image column. | |
| table.FirstRow.LastCell.RemoveAllChildren(); | |
| doc.Save(ArtifactsDir + "WorkingWithTables.BuildTableFromDataTable.docx"); |