用c#中的Open Xml SDK将DataTable导出到Excel
用c#中的Open Xml SDK将DataTable导出到Excel
提问于 2012-08-04 18:42:59
我的程序有能力将一些数据和DataTable导出到Excel文件(模板)中，在模板中插入数据到一些占位符。这是非常好的工作，但我也需要插入一个DataTable…我的示例代码：
using (Stream OutStream = new MemoryStream())
{
// read teamplate
using (var fileStream = File.OpenRead(templatePath))
fileStream.CopyTo(OutStream);
// exporting
Exporting(OutStream);
// to start
OutStream.Seek(0L, SeekOrigin.Begin);
// out
using (var resultFile = File.Create(resultPath))
OutStream.CopyTo(resultFile);导出的下一个方法
private void Exporting(Stream template)
{
using (var workbook = SpreadsheetDocument.Open(template, true, new OpenSettings { AutoSave = true }))
{
// Replace shared strings
SharedStringTablePart sharedStringsPart = workbook.WorkbookPart.SharedStringTablePart;
IEnumerable<Text> sharedStringTextElements = sharedStringsPart.SharedStringTable.Descendants<Text>();
DoReplace(sharedStringTextElements);
// Replace inline strings
IEnumerable<WorksheetPart> worksheetParts = workbook.GetPartsOfType<WorksheetPart>();
foreach (var worksheet in worksheetParts)
{
DoReplace(worksheet.Worksheet.Descendants<Text>());
}
int z = 40;
foreach (System.Data.DataRow row in ExcelWorkXLSX.ToOut.Rows)
{
for (int i = 0; i < row.ItemArray.Count(); i++)
{
ExcelWorkXLSX.InsertText(workbook, row.ItemArray.ElementAt(i).ToString(), getColumnName(i), Convert.ToUInt32(z)); }
z++;
}
}
}
}但是这段代码输出的是DataTable的Slooooooooooooooooooooooooooooooooooooooooooooooooooo...
如何快速、准确地将DataTable导出到Excel？
回答 8
Stack Overflow用户
回答已采纳
发布于 2012-08-04 22:48:33
我写了这个简单的例子。这对我很管用。我只用一个包含一个表的数据集对其进行了测试，但我想这对您来说可能已经足够了。
考虑到我将所有单元格都视为字符串(甚至不是SharedStrings)。如果您想使用SharedStrings，您可能需要对我的示例进行一些调整。
编辑:要实现这一点，必须将WindowsBase和DocumentFormat.OpenXml引用添加到项目中。
尽情享受，
private void ExportDataSet(DataSet ds, string destination)
{
using (var workbook = SpreadsheetDocument.Create(destination, DocumentFormat.OpenXml.SpreadsheetDocumentType.Workbook))
{
var workbookPart = workbook.AddWorkbookPart();
workbook.WorkbookPart.Workbook = new DocumentFormat.OpenXml.Spreadsheet.Workbook();
workbook.WorkbookPart.Workbook.Sheets = new DocumentFormat.OpenXml.Spreadsheet.Sheets();
foreach (System.Data.DataTable table in ds.Tables) {
var sheetPart = workbook.WorkbookPart.AddNewPart<WorksheetPart>();
var sheetData = new DocumentFormat.OpenXml.Spreadsheet.SheetData();
sheetPart.Worksheet = new DocumentFormat.OpenXml.Spreadsheet.Worksheet(sheetData);
DocumentFormat.OpenXml.Spreadsheet.Sheets sheets = workbook.WorkbookPart.Workbook.GetFirstChild<DocumentFormat.OpenXml.Spreadsheet.Sheets>();
string relationshipId = workbook.WorkbookPart.GetIdOfPart(sheetPart);
uint sheetId = 1;
if (sheets.Elements<DocumentFormat.OpenXml.Spreadsheet.Sheet>().Count() > 0)
{
sheetId =
sheets.Elements<DocumentFormat.OpenXml.Spreadsheet.Sheet>().Select(s => s.SheetId.Value).Max() + 1;
}
DocumentFormat.OpenXml.Spreadsheet.Sheet sheet = new DocumentFormat.OpenXml.Spreadsheet.Sheet() { Id = relationshipId, SheetId = sheetId, Name = table.TableName };
sheets.Append(sheet);
DocumentFormat.OpenXml.Spreadsheet.Row headerRow = new DocumentFormat.OpenXml.Spreadsheet.Row();
List<String> columns = new List<string>();
foreach (System.Data.DataColumn column in table.Columns) {
columns.Add(column.ColumnName);
DocumentFormat.OpenXml.Spreadsheet.Cell cell = new DocumentFormat.OpenXml.Spreadsheet.Cell();
cell.DataType = DocumentFormat.OpenXml.Spreadsheet.CellValues.String;
cell.CellValue = new DocumentFormat.OpenXml.Spreadsheet.CellValue(column.ColumnName);
headerRow.AppendChild(cell);
}
sheetData.AppendChild(headerRow);
foreach (System.Data.DataRow dsrow in table.Rows)
{
DocumentFormat.OpenXml.Spreadsheet.Row newRow = new DocumentFormat.OpenXml.Spreadsheet.Row();
foreach (String col in columns)
{
DocumentFormat.OpenXml.Spreadsheet.Cell cell = new DocumentFormat.OpenXml.Spreadsheet.Cell();
cell.DataType = DocumentFormat.OpenXml.Spreadsheet.CellValues.String;
cell.CellValue = new DocumentFormat.OpenXml.Spreadsheet.CellValue(dsrow[col].ToString()); //
newRow.AppendChild(cell);
}
sheetData.AppendChild(newRow);
}
}
}
}Stack Overflow用户
发布于 2012-11-16 10:20:48
eburgos，我稍微修改了您的代码，因为当您的数据集中有多个数据表时，它只是在电子表格中覆盖它们，因此您在工作簿中只剩下一个工作表。基本上，我只是将创建工作簿的部分移出了循环。以下是更新后的代码。
private void ExportDSToExcel(DataSet ds, string destination)
{
using (var workbook = SpreadsheetDocument.Create(destination, DocumentFormat.OpenXml.SpreadsheetDocumentType.Workbook))
{
var workbookPart = workbook.AddWorkbookPart();
workbook.WorkbookPart.Workbook = new DocumentFormat.OpenXml.Spreadsheet.Workbook();
workbook.WorkbookPart.Workbook.Sheets = new DocumentFormat.OpenXml.Spreadsheet.Sheets();
uint sheetId = 1;
foreach (DataTable table in ds.Tables)
{
var sheetPart = workbook.WorkbookPart.AddNewPart<WorksheetPart>();
var sheetData = new DocumentFormat.OpenXml.Spreadsheet.SheetData();
sheetPart.Worksheet = new DocumentFormat.OpenXml.Spreadsheet.Worksheet(sheetData);
DocumentFormat.OpenXml.Spreadsheet.Sheets sheets = workbook.WorkbookPart.Workbook.GetFirstChild<DocumentFormat.OpenXml.Spreadsheet.Sheets>();
string relationshipId = workbook.WorkbookPart.GetIdOfPart(sheetPart);
if (sheets.Elements<DocumentFormat.OpenXml.Spreadsheet.Sheet>().Count() > 0)
{
sheetId =
sheets.Elements<DocumentFormat.OpenXml.Spreadsheet.Sheet>().Select(s => s.SheetId.Value).Max() + 1;
}
DocumentFormat.OpenXml.Spreadsheet.Sheet sheet = new DocumentFormat.OpenXml.Spreadsheet.Sheet() { Id = relationshipId, SheetId = sheetId, Name = table.TableName };
sheets.Append(sheet);
DocumentFormat.OpenXml.Spreadsheet.Row headerRow = new DocumentFormat.OpenXml.Spreadsheet.Row();
List<String> columns = new List<string>();
foreach (DataColumn column in table.Columns)
{
columns.Add(column.ColumnName);
DocumentFormat.OpenXml.Spreadsheet.Cell cell = new DocumentFormat.OpenXml.Spreadsheet.Cell();
cell.DataType = DocumentFormat.OpenXml.Spreadsheet.CellValues.String;
cell.CellValue = new DocumentFormat.OpenXml.Spreadsheet.CellValue(column.ColumnName);
headerRow.AppendChild(cell);
}
sheetData.AppendChild(headerRow);
foreach (DataRow dsrow in table.Rows)
{
DocumentFormat.OpenXml.Spreadsheet.Row newRow = new DocumentFormat.OpenXml.Spreadsheet.Row();
foreach (String col in columns)
{
DocumentFormat.OpenXml.Spreadsheet.Cell cell = new DocumentFormat.OpenXml.Spreadsheet.Cell();
cell.DataType = DocumentFormat.OpenXml.Spreadsheet.CellValues.String;
cell.CellValue = new DocumentFormat.OpenXml.Spreadsheet.CellValue(dsrow[col].ToString()); //
newRow.AppendChild(cell);
}
sheetData.AppendChild(newRow);
}
}
}
}Stack Overflow用户
发布于 2015-11-02 09:06:38
我还编写了一个C#/VB.Net "Export to Excel“库，它使用OpenXML (更重要的是)也使用OpenXmlWriter，因此在编写大文件时不会耗尽内存。
完整的源代码和演示可以在这里下载：
它使用起来非常简单。只需向它传递您想要写入的文件名，以及一个DataTable、DataSet或List<>。
CreateExcelFile.CreateExcelDocument(myDataSet, "MyFilename.xlsx");如果您从ASP.Net应用程序调用它，请将要将文件写出的HttpResponse传递给它。
CreateExcelFile.CreateExcelDocument(myDataSet, "MyFilename.xlsx", Response);页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/11811143
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