Net core,我正在尝试通过打开xml来读取excel。 我试图通过传递某些行和列详细信息来获取单元格值。
以下是我的实现。
private DataTable ConvertExcelToDataTable(IFormFile uploadRegistration)
{
//Create a new DataTable.
var table = new DataTable();
using (SpreadsheetDocument spreadSheetDocument = SpreadsheetDocument.Open(uploadRegistration.OpenReadStream(), false))
{
WorkbookPart workbookPart = spreadSheetDocument.WorkbookPart;
IEnumerable<Sheet> sheets = spreadSheetDocument.WorkbookPart.Workbook.GetFirstChild<Sheets>().Elements<Sheet>();
string relationshipId = sheets.First().Id.Value;
WorksheetPart worksheetPart = (WorksheetPart)spreadSheetDocument.WorkbookPart.GetPartById(relationshipId);
Worksheet workSheet = worksheetPart.Worksheet;
SheetData sheetData = workSheet.GetFirstChild<SheetData>();
IEnumerable<Row> rows = sheetData.Descendants<Row>();
foreach (Cell cell in rows.ElementAt(0))
{
table.Columns.Add(GetCellValue(spreadSheetDocument, cell));
}
foreach (Row row in rows)
{
DataRow tempRow = table.NewRow();
for (int i = 0; i < row.Descendants<Cell>().Count(); i++)
{
// tempRow[i] = GetCellValue(spreadSheetDocument, row.Descendants<Cell>().ElementAt(i));
Console.WriteLine(GetCellValue(spreadSheetDocument, row.Descendants<Cell>().ElementAt(i))); // Here i am able to display cell value but not row and column details
}
table.Rows.Add(tempRow);
}
}
table.Rows.RemoveAt(0);
return table;
}
我有尝试获取行和列详细信息的方法,如下所示
public static (int row, int col) ParseCellAddress(string s)
{
StringBuilder stringBuilderCol = new StringBuilder();
StringBuilder stringBuilderRow = new StringBuilder();
foreach (char c in s)
{
if (char.IsLetter(c))
{
if (stringBuilderRow.Length > 0)
{
throw new ArgumentException($"Invalid Cell adress {s}.");
}
stringBuilderCol.Append(c);
}
else if (char.IsDigit(c))
{
if (stringBuilderCol.Length < 1)
{
throw new ArgumentException($"Invalid Cell adress {s}.");
}
stringBuilderRow.Append(c);
}
else
{
throw new ArgumentException($"Invalid Cell adress {s}.");
}
}
if (stringBuilderRow.Length == 0 || stringBuilderCol.Length == 0)
{
throw new ArgumentException($"Invalid Cell adress {s}.");
}
int rowIdx = int.Parse(stringBuilderRow.ToString());
// calc column index from column name
string columnName = stringBuilderCol.ToString();
int colIdx = 0;
int pow = 1;
for (int i = columnName.Length - 1; i >= 0; i--)
{
colIdx += (columnName[i] - 'A' + 1) * pow;
pow *= 26;
}
return (rowIdx, colIdx);
}
在上述方法中,我可以获得行和列的详细信息。
现在我正在寻找的是,如果我传递特定的行和详细信息,例如第 2 行第 4 列,那么我想获取单元格值。我正在寻找某种方法,它将行和列作为输入并获取单元格值
private string GetCellValue(int row, int column){
//return data for this particular row and column
}
有人可以帮我解决这个问题吗?任何帮助,将不胜感激。谢谢
您可以尝试使用下面的方法获取特定行的特定单元格
private static Cell GetCell(Worksheet worksheet, string columnName, uint rowIndex)
{
Row row = worksheet.GetFirstChild<SheetData>().Elements<Row>().FirstOrDefault(r => r.RowIndex == rowIndex);
if (row != null)
{
return row.Elements<Cell>().FirstOrDefault(c => string.Compare(c.CellReference.Value, columnName + rowIndex, true) == 0);
}
return null;
}