Identify the first table in docx and print which are the documents in a directory contains table in it using c#

Question

I need to check all files(especially "*.docx") from a directory with size of about 10 GB and filter the names of the document with tables in it. For each file in the directory I need to iterate through Document elements of file to find out if the opened document has a table. I need to get this done in C#. I am from testing domain but they gave me development kind of task. Please help

Answer 1

You can use DocumentFormat.OpenXml nuget package to access docx files and find the table inside each file.

using DocumentFormat.OpenXml.Packaging;
using DocumentFormat.OpenXml.Wordprocessing;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;

namespace ConsoleApp2
{
    class Program
    {
        static void Main(string[] args)
        {
            var files = FindFilesWithTable("<path_to_directory>");

            foreach (var file in files)
            {
                Console.WriteLine(file);
            }
    }

    static List<string> FindFilesWithTable(string directory)
    {
        // filter all docx files
        var files = Directory.GetFiles(directory, "*.docx");
        var filesWithTable = new List<string>();
        foreach (var file in files)
        {
            try
            {
                // open file in read only mode
                using (WordprocessingDocument doc = WordprocessingDocument.Open(file, false))
                {
                    // find the first table in the document.  
                    var hasTable = doc.MainDocumentPart.Document.Body.Elements<Table>().Any();
                    if (hasTable)
                    {
                        filesWithTable.Add(file);
                    }
                }
            }
            catch(Exception ex)
            {
                Console.WriteLine("Cannot process {0}: {1}", file, ex.Message);
            }
        }
        return filesWithTable;
    }
}