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How to Fill a Single-Column Table with Rows in .NET Core Word

4 mins read

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 populate a single-column table with multiple rows using mail merge in Word document using C#.

You can follow the below step to dynamically populate a single-column table with multiple rows using mail merge in C#.

  1. Prepare the Word template – Add a merge field, group region with start and end merge fields in a single column table. Ensure both group start and end in same cell.
  2. Enable InsertAsNewRow – Enable the InsertAsNewRow property to insert each record as a new row during mail merge.

Refer to the template below to see how group regions and merge fields should be added inside table:

Template Word document

Steps to populate a single-column table with multiple rows using mail merge:

  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.DLS;
using Syncfusion.DocIO; 
  1. Use the following code example to populate a single-column table with multiple rows using mail merge in Word document.
    C#
using (FileStream fileStream = new FileStream(Path.GetFullPath("Template.docx"), FileMode.Open, FileAccess.ReadWrite))
{
   //Opens the template document.
   using (WordDocument document = new WordDocument(fileStream, FormatType.Docx))
   {
   	//Creates a data table.
   	DataTable table = new DataTable("CompatibleVersions");
   	table.Columns.Add("WordVersion");
   	//Creates a new data row.
   	DataRow row = table.NewRow();
   	row["WordVersion"] = "Microsoft Word 97-2003";
   	table.Rows.Add(row);
   	row = table.NewRow();

   	row["WordVersion"] = "Microsoft Word 2007";
   	table.Rows.Add(row);
   	row = table.NewRow();

   	row["WordVersion"] = "Microsoft Word 2010";
   	table.Rows.Add(row);
   	row = table.NewRow();

   	row["WordVersion"] = "Microsoft Word 2013";
   	table.Rows.Add(row);
   	row = table.NewRow();

   	row["WordVersion"] = "Microsoft Word 2019";
   	table.Rows.Add(row);

   	//Enable the flag to insert a new row for every group in a table.
   	document.MailMerge.InsertAsNewRow = true;
   	//Execute mail merge.
   	document.MailMerge.ExecuteGroup(table);
   	//Creates file stream.
   	using (FileStream outputStream = new FileStream(Path.GetFullPath("Result.docx"), FileMode.Create, FileAccess.ReadWrite))
       {
           //Saves the Word document to file stream.
           document.Save(outputStream, FormatType.Docx);
       }
   }
} 

You can download a complete working sample to populate a single-column table with multiple rows using mail merge in Word document from the GitHub.

By executing the above code with the provided template, the output will be as shown below.

Generated output

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 fill a single-column table with rows in .NET 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.

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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