验证Excel电子表格的每一行和每一列

Question

我正在上载5列，约10行的Excel文件。我想验证每一行/每一列，并确保有数据。列不能是null或为空。我正在使用Epplus。

如果某些行未通过验证，我想跟踪行/列并发送此消息回到客户。我只有一个工作表。我认为最好有一个错误模型

我该如何实现以及此代码将运往何处？

        //check if there is actually a file being uploaded
        if (FileUpload1.HasFile)
        {
            //load the uploaded file into the memorystream
            using (MemoryStream stream = new MemoryStream(FileUpload1.FileBytes))
            using (ExcelPackage excelPackage = new ExcelPackage(stream))
            {
                //loop all worksheets
                foreach (ExcelWorksheet worksheet in excelPackage.Workbook.Worksheets)
                {
                    //loop all rows
                    for (int i = worksheet.Dimension.Start.Row; i <= worksheet.Dimension.End.Row; i++)
                    {
                        //loop all columns in a row
                        for (int j = worksheet.Dimension.Start.Column; j <= worksheet.Dimension.End.Column; j++)
                        {
                            //add the cell data to the List
                            if (worksheet.Cells[i, j].Value != null)
                            {
                                excelData.Add(worksheet.Cells[i, j].Value.ToString());
                            }
                        }
                    }
                }
            }
        }

Answer 1

我建议使用简单的List<string>来跟踪您的错误。

类似：

List<string> errors = new List<string>();

然后在您的验证中：

if (String.IsNullOrEmpty(worksheet.Cells[i, j].Value))
    errors.Add($"Row {i} Column {j} does not contain data.");