无法垂直对齐与iTextSharp的表格单元格中的文本

问题描述

我无法弄清楚如何垂直对齐表格单元格的文本。水平对齐方式是确定的。我使用iTextSharp的生成PDF。应对准表kitosKalbosTable应用于细胞。任何帮助，将不胜感激。这里是我的代码：

 无功表=新PdfPTable（新浮法[] 
 {
 36，1 ，63 
}）; 
 table.WidthPercentage = 100.0f; 
 table.Horizo​​ntalAlignment = Element.ALIGN_LEFT; 
 table.DefaultCell.Border = Rectangle.NO_BORDER; 
 table.SplitRows = FALSE; 
 ......... 
 PdfPTable kitosKalbosTable =新PdfPTable（新浮法[] {10，30}）; 
 kitosKalbosTable.TotalWidth = 40F; 
 kitosKalbosTable.SplitRows = FALSE; 
 
 kitosKalbosTable.AddCell（Kalba，FontType.SmallTimes，vAligment：Element.ALIGN_MIDDLE，hAligment：Element.ALIGN_CENTER）; 
 .......... 
 table.AddCell（kitosKalbosTable）; 
 
 //其他文件
方法public static PdfPCell CreateCell（
字符串文本，
 FontType？fontType = FontType.RegularTimes，
 INT？旋转=空，
 INT？合并单元格= NULL，
 INT？行跨度= NULL，
 INT？hAligment = NULL，
 INT？vAligment = NULL，
 INT？高度=空，
 INT？边界= NULL，
 INT [] disableBorders = NULL，
 INT？paddinLeft = NULL，
 INT？paddingRight = NULL，
布尔？splitLate = NULL）
 {
细胞VAR =新PdfPCell（）; 
 ............ 
 
如果（vAligment.HasValue）
 {
 cell.VerticalAlignment = vAligment.Value; 
} 
 
返回细胞; 
} 
  

解决方案

您有一个复杂的例子，似乎使用嵌套表和扩展方法。正如亚历克西斯所指出的， VerticalAlignment 是正确的属性来使用。下面就是一个完整的工作的例子。我建议摆脱你的扩展方法，现在，只是用这个例子开始。

  //我们的测试文件输出
 VAR TESTFILE = Path.Combine（Environment.GetFolderPath（Environment.SpecialFolder.Desktop）的test.pdf）;使用
 
 //标准PDF设置，这里没有什么特别使用
（VAR FS =新的FileStream（TESTFILE，FileMode.Create，FileAccess.Write，FileShare.None））{
 （VAR DOC =新的文件（））{
使用（VAR作家= PdfWriter.GetInstance（DOC，FS））{
 doc.Open（）; 
 
 //创建我们有两列
变种外部表outerTable =新PdfPTable（2）; 
 
 //只有一列
变种innerTable创建我们的内心表=新PdfPTable（1）; 
 
 //添加中间对齐电池到新表
变种innerTableCell =新PdfPCell（新词（内在））; 
 innerTableCell.VerticalAlignment = Element.ALIGN_MIDDLE; 
 innerTable.AddCell（innerTableCell）; 
 
 //内表添加到外部表
 outerTable.AddCell（innerTable）; 
 
 //创建和垂直较长的第二单元添加到外部表
变种outerTableCell =新PdfPCell（新词（Hello\\\
World\\\
Hello\\\
World））; 
 outerTable.AddCell（outerTableCell）; 
 
 //将表添加到文件
 doc.Add（outerTable）; 
 
 doc.Close（）; 
} 
} 
} 
  

这代码产生此PDF：

I can not figure out how to vertically align text in table cell. horizontal alignment is ok. I use itextsharp to generate pdf. Alignment should be applied to cells in table kitosKalbosTable. Any help would be appreciated. here's my code:

    var table = new PdfPTable(new float[]
                                  {
                                      36, 1, 63
                                  });
    table.WidthPercentage = 100.0f;
    table.HorizontalAlignment = Element.ALIGN_LEFT;
    table.DefaultCell.Border = Rectangle.NO_BORDER;
    table.SplitRows = false;
    .........
    PdfPTable kitosKalbosTable = new PdfPTable(new float[] {10, 30});
        kitosKalbosTable.TotalWidth = 40f;
        kitosKalbosTable.SplitRows = false;

        kitosKalbosTable.AddCell("Kalba", FontType.SmallTimes, vAligment: Element.ALIGN_MIDDLE, hAligment: Element.ALIGN_CENTER);
    ..........
    table.AddCell(kitosKalbosTable);

    //method in other file
    public static PdfPCell CreateCell(
    string text,
    FontType? fontType = FontType.RegularTimes,
    int? rotation = null,
    int? colspan = null,
    int? rowspan = null,
    int? hAligment = null,
    int? vAligment = null,
    int? height = null,
    int? border = null,
    int[] disableBorders = null,
    int? paddinLeft = null,
    int? paddingRight = null,
    bool? splitLate = null)
{
    var cell = new PdfPCell();
    ............

    if (vAligment.HasValue)
    {
        cell.VerticalAlignment = vAligment.Value;
    }

    return cell;
}

解决方案

You have a complex example that appears to be using nested tables and extension methods. As Alexis pointed out, the VerticalAlignment is the correct property to use. Below is a full working example of this. I recommend getting rid of your extension method for now and just starting with this example.

//Our test file to output
var testFile = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Desktop), "test.pdf");

//Standard PDF setup, nothing special here
using (var fs = new FileStream(testFile, FileMode.Create, FileAccess.Write, FileShare.None)) {
    using (var doc = new Document()) {
        using (var writer = PdfWriter.GetInstance(doc, fs)) {
            doc.Open();

            //Create our outer table with two columns
            var outerTable = new PdfPTable(2);

            //Create our inner table with just a single column
            var innerTable = new PdfPTable(1);

            //Add a middle-align cell to the new table
            var innerTableCell = new PdfPCell(new Phrase("Inner"));
            innerTableCell.VerticalAlignment = Element.ALIGN_MIDDLE;
            innerTable.AddCell(innerTableCell);

            //Add the inner table to the outer table
            outerTable.AddCell(innerTable);

            //Create and add a vertically longer second cell to the outer table
            var outerTableCell = new PdfPCell(new Phrase("Hello\nWorld\nHello\nWorld"));
            outerTable.AddCell(outerTableCell);

            //Add the table to the document
            doc.Add(outerTable);

            doc.Close();
        }
    }
}

This code produces this PDF:

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