列の見出しを取得
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OpenXML Excel
string FilePath = @"..\..\..\..\Sample Files\";
string FileName = FilePath + "Get a column heading.xlsx";
string worksheetName = "Sheet1";
string cellName = "B3";
string s1 = GetColumnHeading(FileName, worksheetName, cellName);
// Given a document name, a worksheet name, and a cell name, gets the column of the cell and returns
// the content of the first cell in that column.
public static string GetColumnHeading(string docName, string worksheetName, string cellName)
{
// Open the document as read-only.
using (SpreadsheetDocument document = SpreadsheetDocument.Open(docName, false))
{
IEnumerable<Sheet> sheets = document.WorkbookPart.Workbook.Descendants<Sheet>().Where(s => s.Name == worksheetName);
if (sheets.Count() == 0)
{
// The specified worksheet does not exist.
return null;
}
WorksheetPart worksheetPart = (WorksheetPart)document.WorkbookPart.GetPartById(sheets.First().Id);
// Get the column name for the specified cell.
string columnName = GetColumnName(cellName);
// Get the cells in the specified column and order them by row.
IEnumerable<Cell> cells = worksheetPart.Worksheet.Descendants<Cell>().Where(c => string.Compare(GetColumnName(c.CellReference.Value), columnName, true) == 0)
.OrderBy(r => GetRowIndex(r.CellReference));
if (cells.Count() == 0)
{
// The specified column does not exist.
return null;
}
// Get the first cell in the column.
Cell headCell = cells.First();
// If the content of the first cell is stored as a shared string, get the text of the first cell
// from the SharedStringTablePart and return it. Otherwise, return the string value of the cell.
if (headCell.DataType != null && headCell.DataType.Value == CellValues.SharedString)
{
SharedStringTablePart shareStringPart = document.WorkbookPart.GetPartsOfType<SharedStringTablePart>().First();
SharedStringItem[] items = shareStringPart.SharedStringTable.Elements<SharedStringItem>().ToArray();
return items[int.Parse(headCell.CellValue.Text)].InnerText;
}
else
{
return headCell.CellValue.Text;
}
}
}
// Given a cell name, parses the specified cell to get the column name.
private static string GetColumnName(string cellName)
{
// Create a regular expression to match the column name portion of the cell name.
Regex regex = new Regex("[A-Za-z]+");
Match match = regex.Match(cellName);
return match.Value;
}
// Given a cell name, parses the specified cell to get the row index.
private static uint GetRowIndex(string cellName)
{
// Create a regular expression to match the row index portion the cell name.
Regex regex = new Regex(@"\d+");
Match match = regex.Match(cellName);
return uint.Parse(match.Value);
}
Aspose.Cells
string FilePath = @"..\..\..\..\Sample Files\";
string FileName = FilePath + "Get a column heading.xlsx";
string worksheetName = "Sheet1";
string cellName = "B3";
string s1 = GetColumnHeading(FileName, worksheetName, cellName);
private static string GetColumnHeading(string docName, string worksheetName, string cellName)
{
//Instantiating a Workbook object
Workbook workbook = new Workbook(docName);
//Obtaining the reference of the worksheet by passing its Name
Worksheet worksheet = workbook.Worksheets[worksheetName];
//Removing value from cell
Cell Cell = worksheet.Cells[cellName];
//Get First row of the column
string ColumnHeadingName = CellsHelper.CellIndexToName(0, Cell.Column);
//return value of heading cell
return worksheet.Cells[ColumnHeadingName].Value.ToString();
}