To Debug String

using System;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Utility
{
    public static class DebugString
    {
        public static string ToDebugString(this DataTable dataTable)
        {
            var output = new StringBuilder();

            var columnsWidths = new int[dataTable.Columns.Count];

            // Get column widths
            foreach (DataRow row in dataTable.Rows)
            {
                for (int i = 0; i < dataTable.Columns.Count; i++)
                {
                    var length = row[i].ToString().Length;
                    if (columnsWidths[i] < length)
                        columnsWidths[i] = length;
                }
            }

            // Get Column Titles
            for (int i = 0; i < dataTable.Columns.Count; i++)
            {
                var length = dataTable.Columns[i].ColumnName.Length;
                if (columnsWidths[i] < length)
                    columnsWidths[i] = length;
            }

            // Write Column titles
            for (int i = 0; i < dataTable.Columns.Count; i++)
            {
                var text = dataTable.Columns[i].ColumnName;
                output.Append("|" + PadCenter(text, columnsWidths[i] + 2));
            }
            output.Append("|\n" + new string('=', output.Length) + "\n");

            // Write Rows
            foreach (DataRow row in dataTable.Rows)
            {
                for (int i = 0; i < dataTable.Columns.Count; i++)
                {
                    var text = row[i].ToString();
                    output.Append("|" + PadCenter(text, columnsWidths[i] + 2));
                }
                output.Append("|\n");
            }
            return output.ToString();
        }
        private static string PadCenter(string text, int maxLength)
        {
            int diff = maxLength - text.Length;
            return new string(' ', diff / 2) + text + new string(' ', (int)(diff / 2.0 + 0.5));
        }
        public static string ToDebugString(this IDictionary dictionary)
        {
            return "{" + string.Join(",", dictionary.Select(kv => kv.Key.ToString() + "=" + kv.Value.ToString()).ToArray()) + "}";
        }
        public static string ToDebugString(this IList list)
        {
            return "{" + string.Join(",", list.ToArray()) + "}";
        }
        public static string ToDebugString(this HashSet list)
        {
            return "{" + string.Join(",", list.ToArray()) + "}";
        }
        public static string ToDebugString(this DateTime dateTime)
        {
            return dateTime.ToString("yyyy-MM-dd HH:mm:ss");
        }
        public static string ToDebugString(this byte[] bytes)
        {
            var sb = new StringBuilder("new byte[] { ");
            foreach (var b in bytes)
            {
                sb.Append(b + ", ");
            }
            sb.Append("}");
            return sb.ToString();
        }
        public static string ToDebugString(this IEnumerable list)
        {
            return "{" + string.Join(",", list.ToArray()) + "}";
        }
    }
}