TitleCaseCommand.cs

using Autodesk.Revit.Attributes;
using Autodesk.Revit.DB;
using Autodesk.Revit.UI;
using Autodesk.Revit.UI.Selection;
using System;
using System.Diagnostics;
using System.Globalization;
using TextCap.Api;
using TextCap.Core;

namespace TextCap
{
    [Transaction(TransactionMode.Manual)]
    public class TitleCaseCommand : IExternalCommand
    {
        public Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements)
        {
            try
            {
                var result = TextTransaction.ProcessLowerCaseConversion(commandData, TextConvert.ToTitleCase);
                return result;
            }
            catch (Exception ex)
            {
                Debug.WriteLine(ex.Message);
                return Result.Failed;
            }
        }

        
    }
}