Question

因此，我试图逐行读取文件并将其写入多个PDF，每个PDF文件应仅包含50行，如果一个PDF已满，则将创建另一个PDF，直到所有行都完成为止。

我快完成了。但是问题是每次只有第一个PDF都有内容。其他都空着。这是我的代码。

if ((System.IO.File.Exists(@"C:\Coil master 28-02-2019.csv")) == true)
{
    int lineNumber = 1;
    int PDFNumber = 0;
    for (; PDFNumber < 4; PDFNumber++)
    {
        string path = Application.StartupPath;
        var pgSize = new iTextSharp.text.Rectangle(2976, 4194);

        Document pdfdoc = new Document(pgSize); // Setting the page size for the PDF
        PdfWriter writer = PdfWriter.GetInstance(pdfdoc, new FileStream(path + "/MasterCoils/" + (1 + (50 * PDFNumber)) + "-" + (50 + (PDFNumber * 50)) + ".pdf", FileMode.Create)); //Using the PDF Writer class to generate the PDF
        pdfdoc.Open(); // Opening the PDF to write the data from the textbox

        foreach (string line in System.IO.File.ReadLines(@"C:\Coil master 28-02-2019.csv").Skip(1 + (50 * PDFNumber)).Take(50))
        {
                string[] inputArray = line.Split(delimiters); // split the input string by using the delimiter ','

                COILID = inputArray[0];
                TYPE = inputArray[1];
                COLOR = inputArray[2];
                WEIGHT = Int32.Parse(inputArray[3]);
                GAUGE = inputArray[4];
                WIDTH = inputArray[5];

                PdfContentByte cb = writer.DirectContent;
                // we tell the ContentByte we're ready to draw text
                cb.BeginText();

                // set up Font and Size for Content to be shown in PDF
                BaseFont mybf = BaseFont.CreateFont(BaseFont.HELVETICA_BOLD, BaseFont.CP1252, BaseFont.NOT_EMBEDDED);

                cb.SetFontAndSize(mybf, 15);
                cb.SetTextMatrix(250 + (595 * i), (419 * (9 - j)) + 280);
                cb.ShowText(COILID + "+" + TYPE + "+" + COLOR + "+" + WEIGHT + "+" + GAUGE + "+" + WIDTH);

                // we tell the contentByte, we've finished drawing text
                cb.EndText();

                lineNumber++;
        }

        pdfdoc.Close();
    }
}

如果删除foreach语句，则所有PDF都将包含一些内容。所以我想问题出在foreach，但是我找不到确切的地方。请给我一些帮助。谢谢！

Answer 1

我运行了这段代码，它完全按预期工作，读取了一个csv并制作了4个新PDF，所有包含数据。

我唯一真正改变的是PDF的写入方式。

我不是ITextSharp专家，但希望对您有帮助。

if (File.Exists(@"Coil master 28-02-2019.csv") == true)
{
    int fileNumber = 0;

    for (; fileNumber < 4; fileNumber++)
    {
        var pgSize = new Rectangle(2976, 4194);

        var pdfdoc = new Document(pgSize); // Setting the page size for the PDF

        pdfdoc.Open(); // Opening the PDF to write the data from the textbox

        foreach (string line in File.ReadLines("Coil master 28-02-2019.csv").Skip(1 + (50 * fileNumber)).Take(50))
        {
            string[] inputArray = line.Split(','); // split the input string by using the delimiter ','

            var COILID = inputArray[0];
            var TYPE = inputArray[1];
            var COLOR = inputArray[2];
            var WEIGHT = Int32.Parse(inputArray[3]);
            var GAUGE = inputArray[4];
            var WIDTH = inputArray[5];

            var p = new Paragraph(COILID + "+" + TYPE + "+" + COLOR + "+" + WEIGHT + "+" + GAUGE + "+" + WIDTH);
            pdfdoc.Add(p);
        }

        pdfdoc.Close();
    }
}

从文件中读取行并写入多个PDF不起作用

1 个答案: