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How to Replace Field with Table in ASP.NET Core Word Document?

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Syncfusion Essential DocIO is a .NET Core Word library used to create, read, edit, and convert Word documents programmatically without Microsoft Word or interop dependencies. Using this library, you can replace field with table in a Word document using C#.

Steps to replace field with table in a Word document:

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

Starting with v16.2.0.x, if you reference Syncfusion® assemblies from trial setup or from the NuGet feed, include a license key in your projects. Refer to the link to learn about generating and registering a Syncfusion® license key in your application to use the components without trail message.

  1. Include the following namespaces in Program.cs file
    C#
using Syncfusion.DocIO;
using Syncfusion.DocIO.DLS; 
  1. Use the following code example to replace field with table in a Word document.
    C#
// Open the existing Word document using a FileStream.
using (FileStream docStream = new FileStream(Path.GetFullPath(@"../../../Data/InputDocument.docx"), FileMode.Open, FileAccess.Read))
{
   // Load the existing Word document.
   using (WordDocument document = new WordDocument(docStream, FormatType.Docx))
   {
       // Find the first sequence field (SEQ field) in the document.
       WSeqField seqField = document.FindItemByProperty(EntityType.SeqField, "", "") as WSeqField;
       // Get the paragraph that contains the SEQ field.
       WParagraph paragraph = seqField.OwnerParagraph;
       // Get the index of the paragraph within the text body.
       int paraindex = paragraph.OwnerTextBody.ChildEntities.IndexOf(paragraph);
       // Get the index of the SEQ field within the paragraph.
       int seqfieldIndex = paragraph.ChildEntities.IndexOf(seqField);
       // Clone the paragraph that contains the SEQ field.
       WParagraph clonedParagraph = seqField.OwnerParagraph.Clone() as WParagraph;
       // Remove all entities before the SEQ field index in the cloned paragraph.
       for (int i = seqfieldIndex; i >= 0; i--)
       {
           clonedParagraph.ChildEntities.RemoveAt(i);
       }
       // Remove all entities from the SEQ field index onward in the original paragraph.
       for (int j = paragraph.ChildEntities.Count - 1; j >= seqfieldIndex; j--)
       {
           paragraph.ChildEntities.RemoveAt(j);
       }

       //Create a new table
       IWTable table = new WTable(document);
       table.ResetCells(3, 2);
       table.Rows[0].Cells[0].AddParagraph().AppendText("Sno");
       table.Rows[0].Cells[1].AddParagraph().AppendText("Product");
       table.Rows[0].IsHeader = true;
       table.Rows[1].Cells[0].AddParagraph().AppendText("1.");
       table.Rows[1].Cells[1].AddParagraph().AppendText("Essential DocIO");
       table.Rows[2].Cells[0].AddParagraph().AppendText("2.");
       table.Rows[2].Cells[1].AddParagraph().AppendText("Essential Pdf");

       // Clone the generated table.
       IWTable table1 = table.Clone() as IWTable;
       // Insert the cloned table after the paragraph containing the SEQ field.
       paragraph.OwnerTextBody.ChildEntities.Insert(paraindex + 1, table1);
       // Insert the modified cloned paragraph after the inserted table.
       paragraph.OwnerTextBody.ChildEntities.Insert(paraindex + 2, clonedParagraph);
       // Save the modified document to a new file.
       using (FileStream docStream1 = new FileStream(Path.GetFullPath(@"../../../Data/ResultDocument.docx"), FileMode.Create, FileAccess.Write))
       {
           document.Save(docStream1, FormatType.Docx);
       }
   }
}

You can download a complete working sample to replace field with table in Word document from GitHub

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

Output Word document

Take a moment to peruse the documentation where you can find basic Word document processing options along with the features like mail merge, merge, split, and compare Word documents, find and replace text in the Word document, protect the Word documents, and most importantly, the PDF and Image conversions with code examples.

Conclusion

I hope you enjoyed learning about how to replace field with table in ASP.NET Core Word document.

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.

For current customers, you can check out our components from the License and Downloads page. If you are new to Syncfusion®, you can try our 30-day free trial to check out our other controls.

If you have any queries or require clarifications, please let us know in the comments section below. You can also contact us through our support forums, Direct-Trac, or feedback portal. We are always happy to assist you!

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