C#处理excel、pdf、access

写PDF:

写出 pdf 用到ICSharpCode.SharpZipLib.dll 、 itextsharp.dll （网上下）

using iTextSharp.text;
using iTextSharp.text.pdf;
// C#处理excel、pdf、access

..
    //表格邊框寬度
    private float myTableBorderWidth = 0.01f;
    //使用字體
    private string myFontDir = @"C:\WINDOWS\Fonts\MINGLIU.TTC,0";
// C#处理excel、pdf、access

.
    BaseFont bfSun = BaseFont.createFont(this.myFontDir, BaseFont.IDENTITY_H,BaseFont.NOT_EMBEDDED);
    iTextSharp.text.Font documentFont = new iTextSharp.text.Font(bfSun,4,iTextSharp.text.Font.NORMAL);
    Document tmpDocument = new Document(PageSize.A4.rotate());//横的
    tmpDocument.setMargins(6f,6f,20f,20f);//设置下边距
    PdfWriter pdfwriter = PdfWriter.getInstance(tmpDocument, new FileStream(this.outputdir+pdffilename + ".pdf", FileMode.Create));
    //设置页脚
    HeaderFooter footer = new HeaderFooter(new Phrase("Page ", documentFont), true);
    footer.Alignment = Element.ALIGN_CENTER;
    footer.Border = iTextSharp.text.Rectangle.NO_BORDER;
    tmpDocument.Footer = footer;
    tmpDocument.Open();
    Paragraph mytitle = new Paragraph("标题123321\n\n", documentFont);
    mytitle.Alignment = Element.ALIGN_CENTER;
    tmpDocument.Add(mytitle);
    //略过根据数据量判断是否分页的代码 C#处理excel、pdf、access

    Table aTable = new Table( 24, (hasMultiPages?this.onepageContentNum:totalRowNum) + 1 );
    aTable.Border = iTextSharp.text.Rectangle.LEFT | iTextSharp.text.Rectangle.BOTTOM;
    aTable.BorderWidth = this.myTableBorderWidth;
    aTable.Widths = new float[] {   12f, 12f, 15f, 18f, 12f, 12f, 12f, 15f, 18f, 12f,
        15f, 12f, 18f, 18f, 15f, 12f, 18f, 18f, 15f, 15f,
        15f, 15f, 12f, 12f};
    aTable.AutoFillEmptyCells = true;//设置自动填充
    //设置表格中内容
    Cell tmpCell = new Cell(new Paragraph(tmpCellText+"\n", documentFont));
    tmpCell.HorizontalAlignment = Element.ALIGN_CENTER;
    tmpCell.Border = iTextSharp.text.Rectangle.TOP | iTextSharp.text.Rectangle.RIGHT;
    tmpCell.BorderWidth = this.myTableBorderWidth;
    aTable.addCell(tmpCell, new Point(i, pos));
    // C#处理excel、pdf、access

.
    tmpDocument.Add(aTable);
    tmpDocument.newPage();//适当的时候调这句翻页
    //pdf打完收工
    tmpDocument.Add(aTable);

读ACCESS:

;
    using (OleDbConnection con = new OleDbConnection(this.strCon))
    {
        con.Open();
        OleDbCommand cm = new OleDbCommand(strSql, con);
        OleDbDataReader reader = cm.ExecuteReader();
    while (reader.Read())
        {
        string strTmpIDCard = reader[0].ToString();
        // C#处理excel、pdf、access

    }
    //读完收工
    reader.Close();
    con.Close();

读excel:

引入Microsoft.Office.Interop.Excel.dll先

Microsoft.Office.Interop.Excel;

    Microsoft.Office.Interop.Excel.Application ExcelObj = new Microsoft.Office.Interop.Excel.Application();
    object missing = Type.Missing;
    Microsoft.Office.Interop.Excel.Workbook theWorkbook = ExcelObj.Workbooks.Open(
         this.xlwfileurl, missing, missing, missing, missing, missing, missing, missing,
         missing, missing, missing, missing, missing, missing, missing);
    Microsoft.Office.Interop.Excel.Sheets sheets = theWorkbook.Worksheets;
    Microsoft.Office.Interop.Excel.Worksheet datasheet = null;
    foreach (Microsoft.Office.Interop.Excel.Worksheet sheet in sheets) {
        if (sheet.Name == textBoxSheetName) { datasheet = sheet; break; }
    }
    if (null == datasheet)
    {
        MessageBox.Show(this, "没有名称为" + textBoxSheetName + "的Sheet.");
        return;
    }
    int totalrow_num = datasheet.Rows.Count;
    //读死格式的文件，头不要了
    for (int i = 2; i <= totalrow_num; i++) {
        //读个值出来
    Object obj_id_card = datasheet.get_Range(datasheet.Cells[i, 3], datasheet.Cells[i, 3]).Value2 ;
    Microsoft.Office.Interop.Excel.Range range = datasheet.get_Range(datasheet.Cells[i,2], datasheet.Cells[i, 25]);
    }
    //执行那么多释放资源，还是锁着读的那个excel文件呢～NND
    datasheet = null;
    sheets = null;
    theWorkbook = null;
    ExcelObj = null;
    GC.Collect();
    GC.WaitForPendingFinalizers();
    GC.Collect();