我正在尝试在顶部添加一条水平线,以将标题文本与我的pdf文件中的实际值分开:
这是我的代码:
public class StudentList
{
public void PrintStudentList(int gradeParaleloID)
{
StudentRepository repo = new StudentRepository();
var students = repo.FindAllStudents()
.Where(s => s.IDGradeParalelo == gradeParaleloID);
try
{
Document document = new Document(PageSize.LETTER);
PdfWriter writer = PdfWriter.GetInstance(document, new FileStream(Environment.GetFolderPath(Environment.SpecialFolder.DesktopDirectory) + "\\Alumnos.pdf", FileMode.Create));
document.Open();
PdfContentByte cb = writer.DirectContent;
cb.SetLineWidth(2.0f); // Make a bit thicker than 1.0 default
cb.SetGrayStroke(0.95f); // 1 = black, 0 = white
cb.MoveTo(20, 30);
cb.LineTo(400, 30);
cb.Stroke();
PdfPTable table = new PdfPTable(3);
float[] widths = new float[] { 0.6f, 0.75f, 2f };
table.SetWidths(widths);
PdfPCell numeroCell = new PdfPCell(new Phrase("Nro."));
numeroCell.Border = 0;
numeroCell.HorizontalAlignment = 0;
table.AddCell(numeroCell);
PdfPCell codigoCell = new PdfPCell(new Phrase("RUDE"));
codigoCell.Border = 0;
codigoCell.HorizontalAlignment = 0;
table.AddCell(codigoCell);
PdfPCell nombreCell = new PdfPCell(new Phrase("Apellidos y Nombres"));
nombreCell.Border = 0;
nombreCell.HorizontalAlignment = 0;
table.AddCell(nombreCell);
int c = 1;
foreach (var student in students)
{
PdfPCell cell = new PdfPCell(new Phrase(c.ToString()));
cell.Border = 0;
cell.HorizontalAlignment = 0;
table.AddCell(cell);
cell = new PdfPCell(new Phrase(student.Rude.ToString()));
cell.Border = 0;
cell.HorizontalAlignment = 0;
table.AddCell(cell);
cell = new PdfPCell(new Phrase(student.LastNameFather + " " + student.LastNameMother + " " + student.Name));
cell.Border = 0;
cell.HorizontalAlignment = 0;
table.AddCell(cell);
c++;
}
table.SpacingBefore = 20f;
table.SpacingAfter = 30f;
document.Add(table);
document.Close();
}
catch (DocumentException de)
{
Debug.WriteLine(de.Message);
}
catch (IOException ioe)
{
Debug.WriteLine(ioe.Message);
}
}
}
我不明白为什么cb.Stroke()无效。有什么建议吗?
答案 0 :(得分:12)
使用iTextSharp绘制PdfContentByte
类可能会有点混乱。高度实际上相对于底部而不是顶部。因此,页面顶部不是0f,而是实际为document.Top
,其页面大小为PageSize.LETTER
,为726f。因此,如果您想从顶部绘制30个单位,请尝试:
cb.MoveTo(20, document.Top - 30f);
cb.LineTo(400, document.Top - 30f);
只是好奇 - 为什么这么做而不是使用表格边框? (我注意到你把边界设置为0)试图用手划出线条是最大的痛苦。如果您在PDF中移动内容,则必须确保测量仍然有效。
试试这个:
numeroCell.Border = 0;
numeroCell.BorderColorBottom = new BaseColor(System.Drawing.Color.Black);
numeroCell.BorderWidthBottom = 1f;
codigoCell.Border = 0;
codigoCell.BorderColorBottom = new BaseColor(System.Drawing.Color.Black);
codigoCell.BorderWidthBottom = 1f;
nombreCell.Border = 0;
nombreCell.BorderColorBottom = new BaseColor(System.Drawing.Color.Black);
nombreCell.BorderWidthBottom = 1f;
这应该会在标题行下面给你一条漂亮的黑色实线,不需要测量: