从Excel文件获取更多数据表

Question

我在Excel中遇到这种情况：

...我需要阅读此文件，但是，如何查看，有两种数据：

• 可以读取的数据（名称，姓氏）...因为我确切知道它们的位置
• 和N行的表格

我有一些阅读表的困难。

这是我当前的实现：

public void Reader()
{
    IExcelDataReader excel = ExcelReaderFactory.CreateOpenXmlReader(FileUpload1.PostedFile.InputStream);

    // Fill datatable:
    DataSet dt = excel.AsDataSet();
    DataTable dataTable = dt.Tables["sheetName"];

    // With the position of the cell:
    string name1 = GetCellValue("C2", dataTable);
    string surname1 = GetCellValue("C3", dataTable);
    myLabel1 = name1 + " " + surname1;

    string name2 = GetCellValue("C5", dataTable);
    string surname2 = GetCellValue("C6", dataTable);
    myLabel2 = name2 + " " + surname2;

    string name3 = GetCellValue("F2", dataTable);
    string surname3 = GetCellValue("F3", dataTable);
    myLabel3 = name3 + " " + surname3;

    string name4 = GetCellValue("F5", dataTable);
    string surname4 = GetCellValue("F6", dataTable);
    myLabel4 = name4 + " " + surname4;

    // The table:
    DataTable table = new DataTable();
    table.Columns.Add("ColumnA");
    table.Columns.Add("ColumnB");
    table.Columns.Add("ColumnC");
    table.Columns.Add("Total");
    table.Columns.Add("Result");

    DataRow newRow;
    foreach (DataRow row in dataTable.AsEnumerable().Skip(9).Take(100))
    {
        newRow = dtSinistri.NewRow();
        newRow["ColumnA"] = row[1]; // I have discover this index with the debug... :(
        newRow["ColumnB"] = row[3];
        newRow["ColumnC"] = row[5];
        newRow["Total"] = row[7];
        newRow["Result"] = row[8];
        dtSinistri.Rows.Add(newRow);
    }

    myGridView.DataSource = table;
    myGridView.DataBind();
}

/// <summary>Get the value from the cell.
/// For example: 'C5' return "Guybrush"
/// </summary>
private string GetCellValue(string codeCell, DataTable dt)
{
    Regex regex = new Regex("([0-9]+)(.*)");
    string HDR = "Yes";
    string[] substrings = regex.Split(codeCell);
    string columnLetter = substrings[0];
    int columnNumber = ColumnLetterToNumber(columnLetter);
    int num = (HDR == "Yes") ? 2 : 1; // if first row is an header then num=2, else num=1
    int rowNumber = Int32.Parse(substrings[1]) - num;
    string s = dt.Rows[rowNumber][columnNumber].ToString();
    return s;
}


/// <summary>transform the letter in a column index</summary>
private static int ColumnLetterToNumber(string columnName)
{
    columnName = columnName.ToUpperInvariant();

    int sum = 0;
    for (int i = 0; i < columnName.Length; i++)
    {
        sum *= 26;
        char letter = columnName[i];
        sum += (letter - ('A' - 1));
    }
    sum--;
    return sum;
}

... 这有效 。 但是我想要一种自动从excel文件中获取表格的方法，例如查询或其他方法。 有什么建议吗？