使用 OpenXML 按 sheet 名称读取 excel

Question

我是 OpenXML c# 的新手，我想从 excel 文件中读取行。但我需要按名称阅读 excel sheet。这是我的示例代码，首先读取 sheet:

 using (var spreadSheet = SpreadsheetDocument.Open(path, true))
                {
                    WorkbookPart workbookPart = spreadSheet.WorkbookPart;
                    WorksheetPart worksheetPart = workbookPart.WorksheetParts.First();
                    SheetData sheetData = worksheetPart.Worksheet.Elements<SheetData>().First();

                    foreach (Row r in sheetData.Elements<Row>())
                    {
                        foreach (Cell c in r.Elements<Cell>())
                        {
                            if (c.DataType != null && c.DataType == CellValues.SharedString)
                            {
                               // reading cells
                            }
                        }
                    }

但是我如何通过 sheet 名称找到并读取单元格。

Answer 1

我已经按照下面的代码片段完成了。它基本上是 Workbook->Spreadsheet->Sheet 然后获取 sheet.

的 Name 属性

基本的下属xml是这样的：

<x:workbook>
 <x:sheets>
    <x:sheet name="Sheet1" sheetId="1" r:id="rId1" />
    <x:sheet name="TEST sheet Name" sheetId="2" r:id="rId2" />
  </x:sheets>
</x:workbook>

id 值是 Open XML 包在内部用来识别每个 sheet 和 link 它与其他 XML 部分的值。这就是为什么识别名称后的代码行使用 GetPartById 来获取 WorksheetPart.

using (SpreadsheetDocument doc = SpreadsheetDocument.Open(path, false))
{
    WorkbookPart bkPart = doc.WorkbookPart;
    DocumentFormat.OpenXml.Spreadsheet.Workbook workbook = bkPart.Workbook;
    DocumentFormat.OpenXml.Spreadsheet.Sheet s = workbook.Descendants<DocumentFormat.OpenXml.Spreadsheet.Sheet>().Where(sht => sht.Name == "Sheet1").FirstOrDefault();
    WorksheetPart wsPart = (WorksheetPart)bkPart.GetPartById(s.Id);
    DocumentFormat.OpenXml.Spreadsheet.SheetData sheetdata = wsPart.Worksheet.Elements<DocumentFormat.OpenXml.Spreadsheet.SheetData>().FirstOrDefault();

    foreach (DocumentFormat.OpenXml.Spreadsheet.Row r in sheetdata.Elements<DocumentFormat.OpenXml.Spreadsheet.Row>())
    {
        DocumentFormat.OpenXml.Spreadsheet.Cell c = r.Elements<DocumentFormat.OpenXml.Spreadsheet.Cell>().First();
        txt += c.CellValue.Text + Environment.NewLine;
    }
    this.txtMessages.Text += txt;
}