EPPlus：查找 Excel 中整行是否为空

Question

我在 .net core Web api 中使用 EPPlus 库。在上述方法中我想验证他上传的Excel。我想知道我的整行是否为空。我有以下代码：

using (ExcelPackage package = new ExcelPackage(file.OpenReadStream()))
{
    ExcelWorksheet worksheet = package.Workbook.Worksheets[1];
    int rowCount = worksheet.Dimension.End.Row;
    int colCount = worksheet.Dimension.End.Column;

    //loop through rows and columns
    for (int row = 1; row <= rowCount; row++)
    {
        for (int col = 1; col <= ColCount; col++)
        {
            var rowValue = worksheet.Cells[row, col].Value;
            //Want to find here if the entire row is empty
        }
    }
}

上面的 rowValue 会告诉我特定单元格是否为空。是否可以检查整行，如果为空则继续到下一行。

Answer 1

您可以使用 linq 检查行单元格范围值：

var startRow = 1;
var endRow = 1;
var columnStart = 1;
var columnEnd = worksheet.Cells.End.Column;

var cellRange = worksheet.Cells[startRow, columnStart , endRow, columnEnd];

var isRowEmpty = cellRange.All(c => c.Value == null)

Answer 2

for您可以在行级别的循环中设置布尔值。然后循环所有单元格并在单元格不为空时更改布尔值。

//loop through rows and columns
for (int row = 1; row <= rowCount; row++)
{
    //create a bool
    bool RowIsEmpty = true;

    for (int col = 1; col <= colCount; col++)
    {
        //check if the cell is empty or not
        if (worksheet.Cells[row, col].Value != null)
        {
            RowIsEmpty = false;
        }
    }

    //display result
    if (RowIsEmpty)
    {
        Label1.Text += "Row " + row + " is empty.<br>";
    }
}