C# /VB.NET 创建PDF项目符号列表和多级编号列表

  使用项目符号和编号,可以让文档的层次结构更清晰、更有条理,也更容易突出重点。在编辑文档的过程中,我个人也比较偏爱项目标号来标注文章重点信息。在之前的文章中,介绍了如何在Word中来创建项目标号和编号列表,在本篇文章中,将介绍创建PDF项目符号列表和多级编号列表的方法。

  借助工具: Spire.PDF.dll

  PS:dll可以直接在安装路径下的Bin文件夹中获取。

  1.创建PDF符号列表

  C#

  using System;

  using System.Drawing;

  using Spire.Pdf;

  using Spire.Pdf.Graphics;

  using Spire.Pdf.Lists;

  namespace CreateList_PDF

  {

  class Program

  {

  static void Main(string[] args)

  {

  //创建一个PDF文档

  PdfDocument doc = new PdfDocument();

  //添加一页A4大小的页面

  PdfPageBase page = doc.Pages.Add(PdfPageSize.A4);

  float y = 10;

  //创建标题并设置格式,包括字体、字号、颜色

  PdfBrush brush1 = PdfBrushes.Black;

  PdfTrueTypeFont font1 = new PdfTrueTypeFont(new Font("楷体", 18f, FontStyle.Regular), true);

  PdfStringFormat format1 = new PdfStringFormat(PdfTextAlignment.Center);

  page.Canvas.DrawString("Categories List(项目列表)", font1, brush1, page.Canvas.ClientSize.Width / 2, y, format1);

  y = y + font1.MeasureString("Categories List(项目列表)", format1).Height;

  y = y + 5;

  //创建列表文字并设置格式

  RectangleF rctg = new RectangleF(new PointF(0, 0), page.Canvas.ClientSize);

  PdfLinearGradientBrush brush

  = new PdfLinearGradientBrush(rctg, Color.SteelBlue, Color.Blue, PdfLinearGradientMode.Vertical);

  PdfTrueTypeFont font2 = new PdfTrueTypeFont(new Font("宋体", 15f, FontStyle.Regular), true);

  String formatted

  = "Part 1 Listening(听力部分) \n Part 2 Speaking(口语部分) \n Part 3 Reading(阅读部分) \n Part 4 Writing(写作部分)"

  + "\n Part 5 Test(测试) 1 \n Part 6 Test(测试) 2 \n Part 7 Test Answers(测试答案)";

  //创建PdfList 类对象,并设置列表及样式

  PdfList list = new PdfList(formatted);

  list.Font = font2;

  list.Indent = 8;

  list.TextIndent = 5;

  list.Brush = brush;

  PdfLayoutResult result = list.Draw(page, 0, y);

  y = result.Bounds.Bottom;

  //保存并打开文档

  doc.SaveToFile("List.pdf");

  System.Diagnostics.Process.Start("List.pdf");

  }

  }

  }

  复制代码

  测试结果:

C# /VB.NET 创建PDF项目符号列表和多级编号列表

  VB.NET

  Imports System

  Imports System.Drawing

  Imports Spire.Pdf

  Imports Spire.Pdf.Graphics

  Imports Spire.Pdf.Lists

  Namespace CreateList_PDF

  Class Program

  Private Shared Sub Main(ByVal args As String())

  Dim doc As PdfDocument = New PdfDocument()

  Dim page As PdfPageBase = doc.Pages.Add(PdfPageSize.A4)

  Dim y As Single = 10

  Dim brush1 As PdfBrush = PdfBrushes.Black

  Dim font1 As PdfTrueTypeFont = New PdfTrueTypeFont(New Font("楷体", 18F, FontStyle.Regular), True)

  Dim format1 As PdfStringFormat = New PdfStringFormat(PdfTextAlignment.Center)

  page.Canvas.DrawString("Categories List(项目列表)", font1, brush1, page.Canvas.ClientSize.Width / 2, y, format1)

  y = y + font1.MeasureString("Categories List(项目列表)", format1).Height

  y = y + 5

  Dim rctg As RectangleF = New RectangleF(New PointF(0, 0), page.Canvas.ClientSize)

  Dim brush As PdfLinearGradientBrush = New PdfLinearGradientBrush(rctg, Color.SteelBlue, Color.Blue, PdfLinearGradientMode.Vertical)

  Dim font2 As PdfTrueTypeFont = New PdfTrueTypeFont(New Font("宋体", 15F, FontStyle.Regular), True)

  Dim formatted As String = "Part 1 Listening(听力部分) " & vbLf & " Part 2 Speaking(口语部分) " & vbLf & " Part 3 Reading(阅读部分) " & vbLf & " Part 4 Writing(写作部分)" & vbLf & " Part 5 Test(测试) 1 " & vbLf & " Part 6 Test(测试) 2 " & vbLf & " Part 7 Test Answers(测试答案)"

  Dim list As PdfList = New PdfList(formatted)

  list.Font = font2

  list.Indent = 8

  list.TextIndent = 5

  list.Brush = brush

  Dim result As PdfLayoutResult = list.Draw(page, 0, y)

  y = result.Bounds.Bottom

  doc.SaveToFile("List.pdf")

  System.Diagnostics.Process.Start("List.pdf")

  End Sub

  End Class

  End Namespace

  复制代码

  2.创建PDF多级编号列表

  Spire.Pdf.dll支持多种类型的编号类型:

C# /VB.NET 创建PDF项目符号列表和多级编号列表

  C#

  using Spire.Pdf;

  using Spire.Pdf.Graphics;

  using Spire.Pdf.Lists;

  using System;

  using System.Drawing;

  namespace List2

  {

  class Program

  {

  static void Main(string[] args)

  {

  //新建PDF文档,并添加一页A4大小的空白页面

  PdfDocument doc = new PdfDocument();

  PdfPageBase page = doc.Pages.Add(PdfPageSize.A4);

  float y = 10;

  //添加标题并设置文本和格式

  PdfBrush brush1 = PdfBrushes.Black;

  PdfTrueTypeFont font1 = new PdfTrueTypeFont(new Font("宋体", 18f, FontStyle.Regular), true);

  PdfStringFormat format1 = new PdfStringFormat(PdfTextAlignment.Center);

  page.Canvas.DrawString("目录一览", font1, brush1, page.Canvas.ClientSize.Width / 2, y, format1);

  y = y + font1.MeasureString("目录一览", format1).Height;

  y = y + 5;

  //添加文本并设置字体

  RectangleF rctg = new RectangleF(new PointF(0, 0), page.Canvas.ClientSize);

  PdfLinearGradientBrush brush

  = new PdfLinearGradientBrush(rctg, Color.DarkBlue, Color.Brown, PdfLinearGradientMode.Vertical);

  PdfTrueTypeFont font2 = new PdfTrueTypeFont(new Font("宋体", 15f, FontStyle.Regular), true);

  String formatted1 = "第一章 总 论";

  String formatted2 = "第一节 经济法概述 ";

  String formatted3 = "第二节 经济法主体 ";

  String formatted4 = "第二章 公司法律制度";

  //设置编号列表样式

  PdfOrderedMarker marker1 = new PdfOrderedMarker(PdfNumberStyle.Numeric, new PdfFont(PdfFontFamily.Helvetica, 15f));

  PdfOrderedMarker marker2 = new PdfOrderedMarker(PdfNumberStyle.LowerRoman, new PdfFont(PdfFontFamily.Helvetica, 12f));

  //为第一级编号列表设置格式

  PdfSortedList list1 = new PdfSortedList(font2);

  list1.Indent = 0;

  list1.TextIndent = 5;

  list1.Brush = brush;

  list1.Marker = marker1;

  //为第二级编号列表设置格式

  PdfSortedList list2 = new PdfSortedList(font2);

  list2.Marker = marker2;

  list2.Brush = brush;

  list2.TextIndent = 10;

  //应用编号列表格式到指定文本

  PdfListItem item = list1.Items.Add(formatted1);

  item.SubList = list2;

  list2.Items.Add(formatted2);

  list2.Items.Add(formatted3);

  list1.Items.Add(formatted4);

  //设置PDF文档布局和位置

  PdfTextLayout textLayout = new PdfTextLayout();

  textLayout.Break = PdfLayoutBreakType.FitPage;

  textLayout.Layout = PdfLayoutType.Paginate;

  list1.Draw(page, new PointF(0, y), textLayout);

  //保存文件

  doc.SaveToFile("多级列表.pdf");

  System.Diagnostics.Process.Start("多级列表.pdf");

  }

  }

  }

  复制代码

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