How to find and apply bold formatting to a specific word in replaced content

Syncfusion® Essential® DocIO is a .NET Word library used to create, read, edit, and convert Word documents programmatically without Microsoft Word or interop dependencies. Using this library, you can find and apply bold formatting to a specific word in replaced content using C#.

To achieve this, follow the steps below:

• Find the required text pattern using a regular expression in the Word document.
• Replace the found text with the desired text.
• Find a particular word in the replace text, retrieve it as a single text range, and apply bold formatting to that text range.

Steps to find and apply bold formatting to a specific word in replaced content:

1. Create a new .NET Core console application project.
2. Install the Syncfusion.DocIO.Net.Core NuGet package as a reference to your project from NuGet.org.
   
   
   

3. Include the following namespaces in Program.cs file
   C#

using Syncfusion.DocIO.DLS;
using Syncfusion.DocIO;
using System.Text.RegularExpressions;

4. Use the following code example to find and apply bold formatting to a specific word in replaced content.
   C#

// Open the input Word document from the specified path.
using (FileStream docStream = new FileStream(Path.GetFullPath(@"Data/Input.docx"), FileMode.Open, FileAccess.Read))
{
   // Load the Word document into the WordDocument object.
   using (WordDocument document = new WordDocument(docStream, FormatType.Docx))
   {
      // Find the text pattern using a regular expression.
      TextSelection selection = document.Find(new Regex("^<<([^>]*)>>"));
      // Get the selected text as a single text range.
      WTextRange textRange = selection.GetAsOneRange();
      // Get the text body and paragraph of selected text.
      WTextBody body = textRange.OwnerParagraph.OwnerTextBody;
      WParagraph paragraph = textRange.OwnerParagraph;
      // Get the index of the paragraph within the text body.
      int paraIndex = body.ChildEntities.IndexOf(paragraph);
      // Replace the selected text with the replace content.
      document.Replace(selection.SelectedText, "Adventure Works Cycles", true, true);
      // Search for the word within the current paragraph.
      TextSelection replacedSelection = paragraph.Find("Works", true, false);
      if (replacedSelection != null)
      {
         // Get the selected text as a single text range.
         WTextRange replacedTextRange = replacedSelection.GetAsOneRange();
         // Apply bold formatting to the text range.
         replacedTextRange.CharacterFormat.Bold = true;
      }
      // Save the modified document to the specified output path.
      using (FileStream outputStream = new FileStream(Path.GetFullPath(@"Output/Result.docx"), FileMode.Create, FileAccess.Write))
      {
         document.Save(outputStream, FormatType.Docx);
      }
   }
}

You can download a complete working sample to find and apply bold formatting to a specific word in replaced content from the GitHub.

By executing the program, you will get the Word document as follows.

Conclusion
I hope you enjoyed learning about how to find and apply bold formatting to a specific word in replaced content in Core Word.

You can refer to our ASP.NET Core DocIO feature tour page to know about its other groundbreaking feature representations and documentation, and how to quickly get started for configuration specifications. You can also explore our ASP.NET Core DocIO example to understand how to create and manipulate data.

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