Program.cs

#region Copyright Syncfusion Inc. 2001-2021.
// Copyright Syncfusion Inc. 2001-2021. All rights reserved.
// Use of this code is subject to the terms of our license.
// A copy of the current license can be obtained at any time by e-mailing
// licensing@syncfusion.com. Any infringement will be prosecuted under
// applicable laws. 
#endregion
using Syncfusion.WinForms.Core;
using Syncfusion.WinForms.Themes;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using System.Windows.Forms;
using Syncfusion.WinForms.Controls;
using Syncfusion.Licensing;
using System.IO;
using Syncfusion.Windows.Forms;

namespace SfNumericTextBoxDemo
{
    static class Program
    {
        /// <summary>
        /// The main entry point for the application.
        /// </summary>
        [STAThread]
        static void Main()
        {
            SyncfusionLicenseProvider.RegisterLicense(DemoCommon.FindLicenseKey());
            SkinManager.LoadAssembly(typeof(Syncfusion.WinForms.Themes.Office2019Theme).Assembly);
            SkinManager.LoadAssembly(typeof(Syncfusion.WinForms.Themes.Office2016Theme).Assembly);
            SkinManager.LoadAssembly(typeof(Syncfusion.HighContrastTheme.WinForms.HighContrastTheme).Assembly);
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            Application.Run(new GettingStarted());
        }

        /// <summary>
        /// Represents a class that is used to find the licensing file for Syncfusion controls.
        /// </summary>
        public class DemoCommon
        {

            /// <summary>
            /// Finds the license key from the Common folder.
            /// </summary>
            /// <returns>Returns the license key.</returns>
            public static string FindLicenseKey()
            {
                string licenseKeyFile = "..\\Common\\SyncfusionLicense.txt";
                for (int n = 0; n < 20; n++)
                {
                    if (!System.IO.File.Exists(licenseKeyFile))
                    {
                        licenseKeyFile = @"..\" + licenseKeyFile;
                        continue;
                    }
                    return File.ReadAllText(licenseKeyFile);
                }
                return string.Empty;
            }
        }

    }
}