Question

我们如何使用C＃中的iTextSharp将数据表导出为PDF？

public void ExportToPdf(DataTable dt)
   {      
    Document document = new Document();
    PdfWriter writer = PdfWriter.GetInstance(document, new FileStream("c://sample.pdf", FileMode.Create));
    document.Open();
    PdfPTable table = new PdfPTable(dt.Columns.Count);
    PdfPRow row = null;
    float[] widths = new float[] { 2f, 2f, 2f, 2f };
    table.SetWidths(widths);
    table.WidthPercentage = 100;
    PdfPCell cell = new PdfPCell(new Phrase("Products"));
    cell.Colspan = dt.Columns.Count; 
}

Answer 1

以下是示例代码。请检查一下。

public void ExportToPdf(DataTable dt)
   {      
    Document document = new Document();
    PdfWriter writer = PdfWriter.GetInstance(document, new FileStream("c://sample.pdf", FileMode.Create));
    document.Open();
            iTextSharp.text.Font font5 = iTextSharp.text.FontFactory.GetFont(FontFactory.HELVETICA, 5);

    PdfPTable table = new PdfPTable(dt.Columns.Count);
    PdfPRow row = null;
    float[] widths = new float[] { 4f, 4f, 4f, 4f };

    table.SetWidths(widths);

    table.WidthPercentage = 100;
    int iCol = 0;
    string colname = "";
    PdfPCell cell = new PdfPCell(new Phrase("Products"));

    cell.Colspan = dt.Columns.Count;

    foreach (DataColumn c in dt.Columns)
    {

        table.AddCell(new Phrase(c.ColumnName, font5));
    }

    foreach (DataRow r in dt.Rows)
    {
        if (dt.Rows.Count > 0)
        {
            table.AddCell(new Phrase(r[0].ToString(), font5));
            table.AddCell(new Phrase(r[1].ToString(), font5));
            table.AddCell(new Phrase(r[2].ToString(), font5));
            table.AddCell(new Phrase(r[3].ToString(), font5));
        }          
    }  document.Add(table);
        document.Close();
}

Answer 2

这更为一般。它适用于任何DataTable

public void createPDF(DataTable dataTable, string destinationPath)
{
    Document document = new Document();
    PdfWriter writer = PdfWriter.GetInstance(document, new FileStream(destinationPath, FileMode.Create));
    document.Open();

    PdfPTable table = new PdfPTable(dataTable.Columns.Count);
    table.WidthPercentage = 100;

    //Set columns names in the pdf file
    for(int k = 0; k < dataTable.Columns.Count; k++)
    {
        PdfPCell cell = new PdfPCell(new Phrase(dataTable.Columns[k].ColumnName));

        cell.HorizontalAlignment = PdfPCell.ALIGN_CENTER;
        cell.VerticalAlignment = PdfPCell.ALIGN_CENTER;
        cell.BackgroundColor = new iTextSharp.text.BaseColor(51, 102, 102);

        table.AddCell(cell);
    }

    //Add values of DataTable in pdf file
    for(int i = 0; i < dataTable.Rows.Count; i++)
    {
        for(int j = 0; j < dataTable.Columns.Count; j++)
        {
            PdfPCell cell = new PdfPCell(new Phrase(dataTable.Rows[i][j].ToString()));

            //Align the cell in the center
            cell.HorizontalAlignment = PdfPCell.ALIGN_CENTER;
            cell.VerticalAlignment = PdfPCell.ALIGN_CENTER;

            table.AddCell(cell);
        }
    }

    document.Add(table);
    document.Close();
}

Answer 3

首先在ASP.Net中导入iTextSharp库。

HTML标记

HTML标记包含一个生成PDF的按钮

$tagline.css({
                    'top' : -(windowScroll/3)+"px",
                    'webkit-transition-property': 'top',
                    'webkit-transition-duration': '.5s'
                });

<强> C＃

<asp:Button Text="Generate Invoice" OnClick="GenerateInvoicePDF" runat="server" />

参考：http://www.aspsnippets.com/Articles/Generate-Invoice-Bill-Receipt-PDF-from-database-in-ASPNet-using-C-and-VBNet.aspx

我们如何使用iTextSharp将数据表导出为PDF？

3 个答案: