仅获取具有数据（数字）的单元格范围

Question

有一张 MS Excel 表格，里面填满了一个矩阵数据。

我怎样才能只获得数字区域？

现在我正在使用workSheet.UsedRange 提取数据范围。但是如果我删除了一个矩阵行，它会被认为在 usedRange 中，即使该行已经被删除了！那只是因为我以前使用过这些单元格。

那么，我怎样才能只获得带有实际事物（数字）的范围？

代码：

public Array ReadData(string fullPath, Size size)
{
    Excel.Application application;
    Workbook workBook;
    Worksheet workSheet;
    Range range;

    application = new Excel.ApplicationClass();
    workBook = application.Workbooks.Open(fullPath, 0, true, 5, "", "", true, XlPlatform.xlWindows, "\t", false, false, 0, true, 1, 0);
    workSheet = (Worksheet)workBook.Worksheets.get_Item(1);

    //HERE IS THE PROBLEM
    range = workSheet.UsedRange; 

    if (!size.IsEmpty)
    {
        Size availableSize = new Size(range.Columns.Count, range.Rows.Count);
        if ((availableSize.Width < size.Width) || (availableSize.Height < size.Height))
        {
            string msg = string.Format("Available data range ({0}) at the sheet is smaller than needed size ({1})", availableSize, size);
            throw new ArgumentException(msg);
        }
        else if ((availableSize.Width > size.Width) || (availableSize.Height > size.Height))
        {
            range = workSheet.get_Range(workSheet.Cells[1, 1], workSheet.Cells[size.Width, size.Height]);
            string msg = string.Format("Available data range ({0}) at the sheet is bigger than needed size ({1})", availableSize, size);
            Trace.TraceInformation(msg);
        }
    }

    Array data;

    data = (Array)range.Cells.Value2;

    return data;
}

---

我认为可能的解决方案是在 VB 中发布的。在 C# 中将是：

        range = workSheet.UsedRange;
        range = range.CurrentRegion.SpecialCells(XlCellType.xlCellTypeConstants, XlSpecialCellsValue.xlNumbers);

但它会引发“找不到单元格”的异常

Answer 1

我不太懂 c#，但是在 Excel 中，你使用
Range("yourRange").SpecialCells(xlCellTypeConstants, xlNumbers)，或
Range("yourRange").CurrentRegion.SpecialCells(xlCellTypeConstants, xlNumbers)

http://msdn.microsoft.com/en-us/library/aa213567(v=office.11).aspx
或
SpecialCells in VSTO
或
How to get the range of occupied cells in excel sheet