使用Interop在Excel.Range中忽略并覆盖空白单元格

时间:2015-01-12 10:28:57

标签: c# excel excel-interop cells

在excel文件中包含数据,如下所示,其中第1行和第1行2被视为标题行,当根据第一列拆分此特定文件时,将对其进行复制。

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分割后的文件如下所示:

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问题是在这种情况下,将列D的值复制到错误的C列。

我认为我需要检查单元格是空还是空,并在写入期间将空/空值放入新文件。问题是如何将其纳入我的以下代码?

    private FileEntity GetFileObject(Excel.Range range)
    {
        FileEntity fileEntity = new FileEntity();
        fileEntity.RowValues = new List<RowEntity>();

        for (int rowCount = 1; rowCount <= range.Rows.Count; rowCount++)
        {
            RowEntity rowEntity = new RowEntity();
            rowEntity.ColumnValues = new List<string>();

            for (int columnCount = 1; columnCount <= range.Columns.Count; columnCount++)
            {
                if ((range.Cells[rowCount, columnCount] as Excel.Range).Value != null)
                {
                    rowEntity.ColumnValues.Add((range.Cells[rowCount, columnCount] as Excel.Range).Value.ToString());
                }
            }
            fileEntity.RowValues.Add(rowEntity);
        }
        return fileEntity;
    }

2 个答案:

答案 0 :(得分:0)

这是因为文档结构具有内置的效率,可以避免浪费空间。您必须检查单元格以供参考(A1,B1等),然后您就可以知道它来自何处以及如何处理它。

      int rowIdx = 0;

      foreach (Row r in sheetData.Elements<Row>().Skip(1))
      {
        rowIdx++;
        IEnumerable<Cell> thisRow = r.Elements<Cell>();

        foreach (var c in thisRow)
        {
          //This will tell you what cell you are looking at (A2, D14, whatever..)
          string cellRef = c.CellReference.ToString().Substring(0, 1);

          switch (cellRef)
          {
            case "A": 
              //do something...
              break;
            case "B": 
              //do something...
              break;
            case "C": 
              //do something...
              break;
        ....ETC.......

答案 1 :(得分:0)

找到解决方案:

                if ((range.Cells[rowCount, columnCount] as Excel.Range).Value != null)
                {
                    rowEntity.ColumnValues.Add((range.Cells[rowCount, columnCount] as Excel.Range).Value.ToString());
                }
                else
                    rowEntity.ColumnValues.Add(""); //just add this line. keeps the blank cell as created with empty string