c# - excel 2003 和 excel 2007 行、列地址的区别

Question

在 excel 2003 行中，列地址指定为 A,1 和 C,12，但在 excel 2007 中，此格式更改为整数，如 1,1 和 3,12

是否有任何内置支持将旧地址转换为新地址，或者是否有任何自定义算法来转换这些值。

提前致谢

Answer 1

这是我们用来将 Excel 列字母转换为数字并返回的方法

/// <summary>
/// 1 -> A<br/>
/// 2 -> B<br/>
/// 3 -> C<br/>
/// ...
/// </summary>
/// <param name="column"></param>
/// <returns></returns>
public static string ExcelColumnFromNumber(int column)
{
    string columnString = "";
    decimal columnNumber = column;
    while (columnNumber > 0)
    {
        decimal currentLetterNumber = (columnNumber - 1) % 26;
        char currentLetter = (char)(currentLetterNumber + 65);
        columnString = currentLetter + columnString;
        columnNumber = (columnNumber - (currentLetterNumber + 1)) / 26;
    }
    return columnString;
}

/// <summary>
/// A -> 1<br/>
/// B -> 2<br/>
/// C -> 3<br/>
/// ...
/// </summary>
/// <param name="column"></param>
/// <returns></returns>
public static int NumberFromExcelColumn(string column)
{
    int retVal = 0;
    string col = column.ToUpper();
    for (int iChar = col.Length - 1; iChar >= 0; iChar--)
    {
        char colPiece = col[iChar];
        int colNum = colPiece - 64;
        retVal = retVal + colNum * (int)Math.Pow(26, col.Length - (iChar + 1));
    }
    return retVal;
}