Introduction to methods of inserting and hiding paragraphs into word documents using C#

This article mainly introduces in detail how C# inserts a new paragraph and hides paragraphs into a word document. , has certain reference value, interested friends can refer to

When editing a Word document, we sometimes suddenly want to add a new piece of content; and when letting others browse the Word document, some information we Don't want others to see it. So how to use C# programming to cleverly insert or hide paragraphs? This article will share with you a good way to insert new paragraphs and hide paragraphs into Word documents.

The Free Spire.Doc for .NET component is used here, which allows developers to easily and flexibly operate Word documents.

Steps to insert a new paragraph into a Word document

##Step 1:Create a new document and Load an existing document

Document document = new Document();
document.LoadFromFile(@"C:\Users\Administrator\Desktop\向日葵.docx", FileFormat.Docx);

Step 2:Insert a new paragraph and format the font

Paragraph paraInserted = document.Sections[0].AddParagraph();
TextRange textRange1 = paraInserted.AppendText("向日葵的花语是——太阳、光辉、高傲、忠诚、爱慕、沉默的爱。向日葵又叫望日莲，一个很美的名字");
textRange1.CharacterFormat.TextColor = Color.Blue;
textRange1.CharacterFormat.FontSize = 15;
textRange1.CharacterFormat.UnderlineStyle = UnderlineStyle.Dash;

Step 3:Save the document

document.SaveToFile("result.docx", FileFormat.Docx);

The following is a comparison chart before and after the program is run:

Before running

After running

##Steps to hide paragraphs
When operating a Word document, we can hide the selected text by clicking the Font dialog box in Microsoft Word. Please take a look at the screenshot below to see how Microsoft hides text:

However, Free Spire.Doc for .NET can hide specified text by setting the CharacterFormat.Hidden property. text or the entire paragraph, the detailed steps will be introduced below:

Step 1:

Create a new document and load the existing document

Document doc = new Document();
doc.LoadFromFile(@"C:\Users\Administrator\Desktop\雏菊.docx", FileFormat.Docx);

Step 2:

Get the first section and the last section of the Word document

Section sec = doc.Sections[0];
Paragraph para = sec.Paragraphs[sec.Paragraphs.Count - 1];

Step 3:

Call the for loop statement to get all TextRange of the last paragraph and set the property of CharacterFormat.Hidden to true

for (int i = 0; i < para.ChildObjects.Count;i++)
  {
  (para.ChildObjects[i] as TextRange).CharacterFormat.Hidden = true;

  }

Step 4:

Save the document

doc.SaveToFile("result1.docx", FileFormat.Docx);

The following is a comparison chart before and after running the program:

Before running

After running

C#Complete code

using Spire.Doc;
using Spire.Doc.Documents;
using Spire.Doc.Fields;
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Linq;
using System.Text;

namespace insert_new_paragraph_and_hide
{
 class Program
 {
 static void Main(string[] args)
 { //该部分为插入新段落的代码
  Document document = new Document();
  document.LoadFromFile(@"C:\Users\Administrator\Desktop\向日葵.docx", FileFormat.Docx);

  Paragraph paraInserted = document.Sections[0].AddParagraph();
  TextRange textRange1 = paraInserted.AppendText("向日葵的花语是——太阳、光辉、高傲、忠诚、爱慕、沉默的爱。向日葵又叫望日莲，一个很美的名字");
  textRange1.CharacterFormat.TextColor = Color.Blue;
  textRange1.CharacterFormat.FontSize = 15;
  textRange1.CharacterFormat.UnderlineStyle = UnderlineStyle.Dash;
  document.SaveToFile("result.docx", FileFormat.Docx);


  //该部分为隐藏段落的代码
  Document doc = new Document();
  doc.LoadFromFile(@"C:\Users\Administrator\Desktop\雏菊.docx", FileFormat.Docx);
  Section sec = doc.Sections[0];
  Paragraph para = sec.Paragraphs[sec.Paragraphs.Count - 1];
  for (int i = 0; i < para.ChildObjects.Count;i++)
  {
  (para.ChildObjects[i] as TextRange).CharacterFormat.Hidden = true;

  }

  doc.SaveToFile("result1.docx", FileFormat.Docx);

 }
 }
}

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