删除itextshap中的左侧和右侧边框，并想要一个rectanglur框 [英] Remove left and right side borders in itextshap and want a rectanglur box

问题描述

删除Approved By和标志的左侧和右侧边框，并且还需要在校准证书编号后绘制一个小矩形框：

  PdfPCell CalibrationContent = new PdfPCell（FormatPhrase（，8，Font.NORMAL，BaseColor.BLACK））; 
 CalibrationContent.Colspan = 1; 
 CalibrationContent.BackgroundColor = BaseColor.WHITE; 
 CalibrationContent.NoWrap = true; 
 CalibrationContent.Horizo​​ntalAlignment = Element.ALIGN_CENTER; 
 PdfMastertable.AddCell（CalibrationContent）; 
 
 CalibrationContent = new PdfPCell（FormatPhrase（Approved By，8，Font.NORMAL，BaseColor.BLACK））; 
 CalibrationContent.Colspan = 1; 
 CalibrationContent.MinimumHeight = 20f; 
 CalibrationContent.BackgroundColor = BaseColor.WHITE; 
 CalibrationContent.NoWrap = true; 
 CalibrationContent.Horizo​​ntalAlignment = 0; 
 pdfMastertable.AddCell（CalibrationContent）; 
 
 CalibrationContent = new PdfPCell（FormatPhrase（Sign，8，Font.NORMAL，BaseColor.BLACK））; 
 CalibrationContent.Colspan = 1; 
 CalibrationContent.MinimumHeight = 20f; 
 CalibrationContent.BackgroundColor = BaseColor.WHITE; 
 CalibrationContent.NoWrap = true; 
 CalibrationContent.Horizo​​ntalAlignment = 0; 
 pdfMastertable.AddCell（CalibrationContent）; 
  

以下代码是带有勾号框的证书号码

  CAPAContent = new PdfPCell（FormatPhrase（Calibration Certificate No：+ddmmyy+'\\\
'+Date Issued：+ddmmyy+'\ +'\ n'，11，Font.NORMAL，BaseColor.BLACK））; 
 CAPAContent.Colspan = 1; 
 CAPAContent.BackgroundColor = BaseColor.WHITE; 
 CAPAContent.NoWrap = true; 
 CAPAContent.Border = 0; 
 CAPAContent.Horizo​​ntalAlignment = Element.ALIGN_RIGHT; 
 pdfAction.AddCell（CAPAContent）; 
 pdfAction.SpacingAfter = 20f; 
 pdfDoc.Add（pdfAction）; 
  

解决方案

确实移除边框：

  CAPAContent.Border = 0; 
  

但是每当我看到一个学生这样做，我会减去一个点，因为使用 int 使代码难以阅读。最好这样做：

  CAPAContent.Border = Rectangle.NO_BORDER; 
  

这样，你可以很容易地看到0表示：不会绘制边框。

使用 Rectangle 类中可用的常量，还教会您还有其他选项。例如：如果你想调整屏幕截图中所示的边框，你可以这样做：

  PdfPCell CalibrationContent = new PdfPCell（FormatPhrase（，8，Font.NORMAL，BaseColor.BLACK））; 
 CalibrationContent.Border = Rectangle.TOP | Rectangle.LEFT | Rectangle.BOTTOM; 
 ... 
 CalibrationContent = new PdfPCell（FormatPhrase（Approved By，8，Font.NORMAL，BaseColor.BLACK））; 
 CalibrationContent.Border = Rectangle.TOP | Rectangle.BOTTOM; 
 ... 
 CalibrationContent = new PdfPCell（FormatPhrase（Sign，8，Font.NORMAL，BaseColor.BLACK））; 
 CalibrationContent.Border = Rectangle.TOP | Rectangle.RIGHT | Rectangle.BOTTOM; 
  

这样可以按照你想要的方式调整边框。另请参见

这可以使用Zapfdingbats字符轻松完成，如 TickboxCharacter 示例：

 段落p = new Paragraph（This is a tick box character：）; 
 Font zapfdingbats = new Font（Font.FontFamily.ZAPFDINGBATS，14）; 
 Chunk chunk = new Chunk（o，zapfdingbats）; 
 p.add（chunk）; 
 document.add（p）; 
  

Remove the left and right side borders of Approved By and sign and also i need to draw a small rectangular box after calibration certificate no:

PdfPCell CalibrationContent = new PdfPCell(FormatPhrase("", 8, Font.NORMAL, BaseColor.BLACK));
CalibrationContent.Colspan = 1;
CalibrationContent.BackgroundColor = BaseColor.WHITE;
CalibrationContent.NoWrap = true;
CalibrationContent.HorizontalAlignment = Element.ALIGN_CENTER;
PdfMastertable.AddCell(CalibrationContent);

CalibrationContent = new PdfPCell(FormatPhrase("Approved By", 8, Font.NORMAL, BaseColor.BLACK));
CalibrationContent.Colspan = 1;
CalibrationContent.MinimumHeight = 20f;
CalibrationContent.BackgroundColor = BaseColor.WHITE;        
CalibrationContent.NoWrap = true;
CalibrationContent.HorizontalAlignment =0;  
pdfMastertable.AddCell(CalibrationContent);

CalibrationContent = new PdfPCell(FormatPhrase("Sign", 8, Font.NORMAL, BaseColor.BLACK));
CalibrationContent.Colspan =1;
CalibrationContent.MinimumHeight = 20f;
CalibrationContent.BackgroundColor = BaseColor.WHITE;
CalibrationContent.NoWrap = true;
CalibrationContent.HorizontalAlignment = 0;
pdfMastertable.AddCell(CalibrationContent); 

Below code is for that certificate number with Tick box

CAPAContent = new PdfPCell(FormatPhrase("Calibration Certificate No: " + "ddmmyy" + '\n' + "Date Issued : " + "ddmmyy" + '\n' + '\n' + "Monthly instrument type wise " + '\n' + "Test conducted Day wise" + '\n', 11, Font.NORMAL, BaseColor.BLACK));
CAPAContent.Colspan = 1;
CAPAContent.BackgroundColor = BaseColor.WHITE;
CAPAContent.NoWrap = true;
CAPAContent.Border = 0;
CAPAContent.HorizontalAlignment = Element.ALIGN_RIGHT;
pdfAction.AddCell(CAPAContent);
pdfAction.SpacingAfter = 20f;
pdfDoc.Add(pdfAction);

解决方案

This indeed removes the border:

CAPAContent.Border = 0;

But whenever I see a student doing this, I'd subtract a point because using an int makes the code hard to read. It's better to do this:

CAPAContent.Border = Rectangle.NO_BORDER;

This way, you can easily see the 0 means: no border will be drawn.

Using the constants that are available in the Rectangle class, also teaches you that there are other options. For instance: If you want to tweak the borders as shown in your screen shot, you can do this:

PdfPCell CalibrationContent = new PdfPCell(FormatPhrase("", 8, Font.NORMAL, BaseColor.BLACK));
CalibrationContent.Border = Rectangle.TOP | Rectangle.LEFT | Rectangle.BOTTOM;
...
CalibrationContent = new PdfPCell(FormatPhrase("Approved By", 8, Font.NORMAL, BaseColor.BLACK));
CalibrationContent.Border = Rectangle.TOP | Rectangle.BOTTOM;
...
CalibrationContent = new PdfPCell(FormatPhrase("Sign", 8, Font.NORMAL, BaseColor.BLACK));
CalibrationContent.Border = Rectangle.TOP | Rectangle.RIGHT | Rectangle.BOTTOM;

This tweaks the borders exactly the way you want to. See also Chapter 4 of "iText in Action - Second Edition", more specifically the example RotationAndColors.cs

Extra answer:

You probably refuse to accept this answer because I didn't answer your follow-up question in the comments. However, you didn't answer my question either. You want to add a tick box, but you aren't answering the question: Do you want an interactive one? That is: a check box that is an actual form field (AcroForm technology). Or do you want a check box character? That is: a Zapfdingbats character that represents a small empty square.

Let's assume that you merely want a character like this:

That can be easily done with a Zapfdingbats character as shown in the TickboxCharacter example:

Paragraph p = new Paragraph("This is a tick box character: ");
Font zapfdingbats = new Font(Font.FontFamily.ZAPFDINGBATS, 14);
Chunk chunk = new Chunk("o", zapfdingbats);
p.add(chunk);
document.add(p);

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