我使用以下链接中的代码使用Open XML将数据导出到Excel。
http://openxmldeveloper.org/forums/permalink/123327/8373/ShowThread.aspx#8373
代码在VB.Net中，所以我把它转换为C＃。它的工作正常，只有一个（恼人的）故障。最后一个单元格（Z5）是空白的。当我用vb.net版本的代码填充所有单元格时。我手动比较了c＃和VB.Net代码，但它在功能上逐字节相似。但它还是无法填满最后一个细胞。知道为什么吗？
以下代码的C＃版本供您参考：
protected void Export()
{
Response.ClearHeaders();
Response.ClearContent();
Response.Clear();
Response.Buffer = true;
Response.ContentType = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet.main+xml";
//"application/vnd.openxmlformats-officedocument.spreadsheetml.worksheet+xml" '"application/vnd.openxmlformats-officedocument.spreadsheetml.sheet" '"application/vnd.ms-excel"
Response.AddHeader("content-disposition", "attachment; filename=Test.xlsx");
Response.Charset = "";
this.EnableViewState = false;
MemoryStream ms = new MemoryStream();
SpreadsheetDocument objSpreadsheet = SpreadsheetDocument.Create(ms, SpreadsheetDocumentType.Workbook);
WorkbookPart objWorkbookPart = objSpreadsheet.AddWorkbookPart();
objWorkbookPart.Workbook = new Workbook();
WorksheetPart objSheetPart = objWorkbookPart.AddNewPart<WorksheetPart>();
objSheetPart.Worksheet = new Worksheet(new SheetData());
Sheets objSheets = objSpreadsheet.WorkbookPart.Workbook.AppendChild<Sheets>(new Sheets());
Sheet objSheet = new Sheet();
objSheet.Id = objSpreadsheet.WorkbookPart.GetIdOfPart(objSheetPart);
objSheet.SheetId = 1;
objSheet.Name = "mySheet";
objSheets.Append(objSheet);
for (int intRow = (int)('A'); intRow <= (int)('Z'); intRow++)
{
for (uint intCol = 1; intCol <= 5; intCol++)
{
Cell objCell = InsertCellInWorksheet(Convert.ToString((char)intRow), intCol, objSheetPart);
objCell.CellValue = new CellValue("This was a test: " + Convert.ToString((char)intRow) + intCol.ToString());
objCell.DataType = new EnumValue<CellValues>(CellValues.String);
objSpreadsheet.WorkbookPart.Workbook.Save();
}
}
objSpreadsheet.WorkbookPart.Workbook.Save();
objSpreadsheet.Close();
ms.WriteTo(Response.OutputStream);
Response.Flush();
Response.End();
}
private static Cell InsertCellInWorksheet(string columnName, uint rowIndex, WorksheetPart worksheetPart)
{
Worksheet worksheet = worksheetPart.Worksheet;
var sheetData = worksheet.GetFirstChild<SheetData>();
string cellReference = columnName + rowIndex;
// If the worksheet does not contain a row with the specified row index, insert one.
Row row;
if (sheetData.Elements<Row>().Where(r => r.RowIndex == rowIndex).Count() != 0)
{
row = sheetData.Elements<Row>().Where(r => r.RowIndex == rowIndex).First();
}
else
{
row = new Row { RowIndex = rowIndex };
sheetData.Append(row);
}
// If there is not a cell with the specified column name, insert one.
if (row.Elements<Cell>().Where(c => c.CellReference.Value == columnName + rowIndex).Count() > 0)
{
return row.Elements<Cell>().Where(c => c.CellReference.Value == cellReference).First();
}
// Cells must be in sequential order according to CellReference. Determine where to insert the new cell.
Cell refCell = row.Elements<Cell>().FirstOrDefault(cell => string.Compare(cell.CellReference.Value, cellReference, true) > 0);
var newCell = new Cell { CellReference = cellReference };
row.InsertBefore(newCell, refCell);
worksheet.Save();
return newCell;
}
答案 0 :(得分：2)
问题已解决。我对代码做了一些小改动以使其工作。而不是在InsertCellInWorksheet方法中保存工作表。我将表单保存在for循环之外。这是代码的工作版本。
protected void Export()
{
Response.ClearHeaders();
Response.ClearContent();
Response.Clear();
Response.Buffer = true;
Response.ContentType = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet.main+xml";
//"application/vnd.openxmlformats-officedocument.spreadsheetml.worksheet+xml" '"application/vnd.openxmlformats-officedocument.spreadsheetml.sheet" '"application/vnd.ms-excel"
Response.AddHeader("content-disposition", "attachment; filename=Test.xlsx");
Response.Charset = "";
this.EnableViewState = false;
MemoryStream ms = new MemoryStream();
SpreadsheetDocument objSpreadsheet = SpreadsheetDocument.Create(ms, SpreadsheetDocumentType.Workbook);
WorkbookPart objWorkbookPart = objSpreadsheet.AddWorkbookPart();
objWorkbookPart.Workbook = new Workbook();
WorksheetPart objSheetPart = objWorkbookPart.AddNewPart<WorksheetPart>();
objSheetPart.Worksheet = new Worksheet(new SheetData());
Sheets objSheets = objSpreadsheet.WorkbookPart.Workbook.AppendChild<Sheets>(new Sheets());
Sheet objSheet = new Sheet();
objSheet.Id = objSpreadsheet.WorkbookPart.GetIdOfPart(objSheetPart);
objSheet.SheetId = 1;
objSheet.Name = "mySheet";
objSheets.Append(objSheet);
for (int intRow = (int)('A'); intRow <= (int)('Z'); intRow++)
{
for (uint intCol = 1; intCol <= 5; intCol++)
{
Cell objCell = InsertCellInWorksheet(Convert.ToString((char)intRow), intCol, objSheetPart);
objCell.CellValue = new CellValue("This was a test: " + Convert.ToString((char)intRow) + intCol.ToString());
objCell.DataType = new EnumValue<CellValues>(CellValues.String);
}
}
objSheetPart.Worksheet.Save();
objSpreadsheet.WorkbookPart.Workbook.Save();
objSpreadsheet.Close();
ms.WriteTo(Response.OutputStream);
Response.Flush();
Response.End();
}
private static Cell InsertCellInWorksheet(string columnName, uint rowIndex, WorksheetPart worksheetPart)
{
Worksheet worksheet = worksheetPart.Worksheet;
var sheetData = worksheet.GetFirstChild<SheetData>();
string cellReference = columnName + rowIndex;
// If the worksheet does not contain a row with the specified row index, insert one.
Row row;
if (sheetData.Elements<Row>().Where(r => r.RowIndex == rowIndex).Count() != 0)
{
row = sheetData.Elements<Row>().Where(r => r.RowIndex == rowIndex).First();
}
else
{
row = new Row { RowIndex = rowIndex };
sheetData.Append(row);
}
// If there is not a cell with the specified column name, insert one.
if (row.Elements<Cell>().Where(c => c.CellReference.Value == columnName + rowIndex).Count() > 0)
{
return row.Elements<Cell>().Where(c => c.CellReference.Value == cellReference).First();
}
// Cells must be in sequential order according to CellReference. Determine where to insert the new cell.
Cell refCell = row.Elements<Cell>().FirstOrDefault(cell => string.Compare(cell.CellReference.Value, cellReference, true) > 0);
var newCell = new Cell { CellReference = cellReference };
row.InsertBefore(newCell, refCell);
//worksheet.Save();
return newCell;
}
不确定它在VB.Net中是如何工作的： - ）
答案 1 :(得分：0)
通过您拥有的行和列的循环看起来不正确。看起来你是从row = 65（即（int）（'A'）到row = 65 + 26（即（int）（'Z'））循环，然后col = 1到3。 也许你应该从col = 1循环到5 我想您可能需要查看您正在处理的xml，并确保正确地浏览文档（行和列）。如果您没有意识到这一切，Office 2007及更高版本的文档都是openXml文档。它们基本上是包含xml的zip文件。如果您使用电子表格并将扩展名从.xlsx更改为.zip，则可以将文档作为zip文件打开并浏览内容。我没有使用openXml超过一年，但如果我的记忆正确地为我服务，你会发现xml代表了sheet文件夹中的工作表。