c# - 使用 Open XML 插入工作表 - "...unreadable content..."

Question

当我学习本教程时:

http://msdn.microsoft.com/en-us/library/cc881781.aspx

打开一个 Excel 文档并插入一个空工作表，最终结果是一条消息，提示“Excel 在...中发现不可读的内容，是否要恢复此工作簿的内容...”。如果我恢复所有插入的工作表都是空白的(即使我以编程方式添加内容)

在将 xlsx 重命名为 .zip 并检查它后，工作表已创建并添加了内容。

有人有类似的问题吗？这可能是因为没有在新创建的部分之间创建关系......

Answer 1

该错误消息表示构成您的 Excel 文档的 XML 不符合 XML 架构并且无效。您可以使用 Open XML SDK 2.0 Productivity Tool查看问题出在哪里。

我还从你的链接底部复制了代码，并让它像克里斯在他的评论中所说的那样工作。您的代码看起来像下面这样吗？

// Open the document for editing.
using (SpreadsheetDocument spreadSheet = SpreadsheetDocument.Open(docName, true)) 
{
    // Add a blank WorksheetPart.
    WorksheetPart newWorksheetPart = 
       spreadSheet.WorkbookPart.AddNewPart<WorksheetPart>();
    newWorksheetPart.Worksheet = new Worksheet(new SheetData());

    Sheets sheets = spreadSheet.WorkbookPart.Workbook.GetFirstChild<Sheets>();
    string relationshipId = 
       spreadSheet.WorkbookPart.GetIdOfPart(newWorksheetPart);
    // Get a unique ID for the new worksheet.
    uint sheetId = 1;
    if (sheets.Elements<Sheet>().Count() > 0)
    {
        sheetId = 
        sheets.Elements<Sheet>().Select(s => s.SheetId.Value).Max() + 1;
    }

    // Give the new worksheet a name.
    string sheetName = "Sheet" + sheetId;

    // Append the new worksheet and associate it with the workbook.
    Sheet sheet = new Sheet() 
    { Id = relationshipId, SheetId = sheetId, Name = sheetName };
    sheets.Append(sheet);

    string docName = @"C:\Users\Public\Documents\Sheet7.xlsx";
    InsertWorksheet(docName);
}

// Given a document name, inserts a new worksheet.
public static void InsertWorksheet(string docName)
{
    // Open the document for editing.
    using (SpreadsheetDocument spreadSheet = SpreadsheetDocument.Open(docName, true))
    {
        // Add a blank WorksheetPart.
        WorksheetPart newWorksheetPart = spreadSheet.WorkbookPart.AddNewPart<WorksheetPart>();
        newWorksheetPart.Worksheet = new Worksheet(new SheetData());

        Sheets sheets = spreadSheet.WorkbookPart.Workbook.GetFirstChild<Sheets>();
        string relationshipId = spreadSheet.WorkbookPart.GetIdOfPart(newWorksheetPart);

        // Get a unique ID for the new worksheet.
        uint sheetId = 1;
        if (sheets.Elements<Sheet>().Count() > 0)
        {
            sheetId = sheets.Elements<Sheet>().Select(s => s.SheetId.Value).Max() + 1;
        }

        // Give the new worksheet a name.
        string sheetName = "Sheet" + sheetId;

        // Append the new worksheet and associate it with the workbook.
        Sheet sheet = new Sheet() { Id = relationshipId, SheetId = sheetId, Name = sheetName };
        sheets.Append(sheet);
    }
}