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Question

我有一个从电子表格中读取的方法，可以为我的应用程序创建一个Auction。我在下面得到了例外，我想知道为什么我的工作表的范围设置为那个，然后如何更改范围，以便我可以读取我的excel文件的其余部分。

public ActionResult Upload(UploadFile UploadFile)
    {
        if (ModelState.IsValid)
        {

            if (UploadFile.ExcelFile.ContentLength > 0)
            {
                if (UploadFile.ExcelFile.FileName.EndsWith(".xlsx") || UploadFile.ExcelFile.FileName.EndsWith(".xls"))
                {
                    XLWorkbook wb;
                    //incase if the file is corrupt
                    try
                    {
                        wb = new XLWorkbook(UploadFile.ExcelFile.InputStream);
                    }
                    catch (Exception ex)
                    {
                        ModelState.AddModelError(String.Empty, $"Check your file. {ex.Message}");
                        return View();
                    }
                    IXLWorksheet ws = null;
                    try//incase if the sheet you are looking for is not found
                    {
                        ws = wb.Worksheet("sheet1");

                    }
                    catch
                    {
                        ModelState.AddModelError(String.Empty, "Sheet not found");
                        return View();
                    }
                    var firstRowUsed = ws.FirstRowUsed();
                    var auctionRow = firstRowUsed.RowUsed().RowBelow();

                    //create auction
                    string auctionName = auctionRow.Cell(1).Value.ToString();
                    DateTimeOffset startDate = DateTimeOffset.Parse(auctionRow.Cell(2).Value.ToString());
                    DateTimeOffset endDate = DateTimeOffset.Parse(auctionRow.Cell(3).Value.ToString());
                    string folderName = auctionRow.Cell(4).Value.ToString();

                    Models.Auction auction = new Models.Auction(auctionName, startDate, endDate, folderName);
                    db.Auctions.Add(auction);


                    //find the next table
                    var nextRow = auctionRow.RowBelow();
                    while (nextRow.IsEmpty())
                    {
                        nextRow = nextRow.RowBelow();
                    }

                    const int catNameCol = 1;
                    var firstCatRow = nextRow.RowUsed();
                    var catRow = firstCatRow.RowBelow();

                    //get categories from ws table and add to the auction
                    while (!catRow.Cell(catNameCol).IsEmpty())
                    {
                        string catName = catRow.Cell(1).Value.ToString();
                        int seqNo = Convert.ToInt32(catRow.Cell(2).Value.ToString());
                        string fileName = catRow.Cell(3).Value.ToString();

                        Cat cat = new Cat(auction.AuctionId, catName, seqNo, fileName);
                        auction.Cats.Add(cat);

                        catRow = catRow.RowBelow();
                    }

                    var findNextRow = catRow.RowBelow();
                    while (findNextRow.IsEmpty())
                    {
                        findNextRow = findNextRow.RowBelow();
                    }
                    const int itemNameCol = 1;

                    var itemRow = findNextRow.RowUsed().RowBelow();
                    while (!itemRow.Cell(itemNameCol).IsEmpty())
                    {
                        string itemName = itemRow.Cell(1).Value.ToString();
                        string itemDesc = itemRow.Cell(2).Value.ToString();
                        string catName = itemRow.Cell(3).Value.ToString();
                        string modelNo = itemRow.Cell(4).Value.ToString();
                        decimal retailValue = Convert.ToDecimal(itemRow.Cell(5).Value.ToString());
                        string fileName = itemRow.Cell(6).Value.ToString();
                        decimal initialBid = Convert.ToDecimal(itemRow.Cell(7).Value.ToString());
                        decimal increment = Convert.ToDecimal(itemRow.Cell(8).Value.ToString());
                        Cat itemCat = null;

                        foreach (var cat in auction.Cats)
                        {
                            if (catName == cat.CatName.Trim())
                            {
                                itemCat = cat;
                            }
                        }

                        Item item = new Item(itemName, itemDesc, modelNo, retailValue, fileName, startDate, endDate, initialBid, increment, null, null, null, itemCat);
                        itemCat.Items.Add(item);

                        itemRow = itemRow.RowBelow();
                    }
                }
                else
                {
                    ModelState.AddModelError(String.Empty, "Only .xlsx and .xls files are allowed");
                    return View();
                }
            }
            else
            {
                ModelState.AddModelError(String.Empty, "Not a valid file");
                return View();
            }
        }
        db.SaveChanges();
        return View();
    }

例外： Excel Doc的格式： 我对此非常陌生，所以请告诉我是否有一些语法可以完成我正在尝试的内容并修复此异常。如果有任何事情可以改变/改进，请告诉我。谢谢你

Answer 1

nextRow是截断的行＆＃34; C15：F15＆＃34;，您要查找的数据大于此范围。我认为这里还有一个ClosedXML错误。 在您的情况下，它有助于获取工作表的整行，然后获取使用过的单元格。 尝试下一步：

var firstCatRow = nextRow.WorksheetRow().RowUsed();