Source code for openfolderbox.cs

using System;

using System.Collections.Generic;

using System.IO;

using System.Windows.Forms;

namespace RobvanderWoude

{

	class OpenFolderBox

	{

		static string progver = "1.03";

		[STAThread]

		static int Main( string[] args )

		{

			string startfolder = Directory.GetCurrentDirectory( );

			string description = String.Format( "OpenFolderBox,  Version {0}", progver );

			bool startfolderset = false;

			bool descriptionset = false;

			bool allowmakedir = false;

			#region Command Line Parsing

			foreach ( string arg in args )

			{

				if ( arg == "/?" )

				{

					return ShowHelp( );

				}

			}

			if ( args.Length > 3 )

			{

				return ShowHelp( "Too many command line arguments" );

			}

			if ( args.Length > 0 )

			{

				foreach ( string arg in args )

				{

					switch ( arg.ToUpper( ) )

					{

						case "/?":

							return ShowHelp( );

						case "/MD":

							if ( allowmakedir )

							{

								return ShowHelp( "Duplicate command line switch /MD" );

							}

							allowmakedir = true;

							break;

						default:

							if ( startfolderset )

							{

								if ( descriptionset )

								{

									return ShowHelp( "Invalid or duplicate command line argument \"{0}\"", arg );

								}

								description = arg.Replace( "\\n", "\n" ).Replace( "\\t", "\t" );

								descriptionset = true;

							}

							else

							{

								try

								{

									startfolder = Path.GetFullPath( arg );

								}

								catch ( ArgumentException )

								{

									// Assuming the error was caused by a trailing bacslash in doublequotes

									startfolder = arg.Substring( 0, arg.IndexOf( '"' ) );

									startfolder = Path.GetFullPath( startfolder + "." );

								}

								if ( !Directory.Exists( startfolder ) )

								{

									return ShowHelp( "Invalid folder \"{0}\"", startfolder );

								}

								startfolderset = true;

							}

							break;

					}

				}

			}

			#endregion Command Line Parsing

			using ( FolderBrowserDialog dialog = new FolderBrowserDialog( ) )

			{

				dialog.SelectedPath = startfolder;

				dialog.Description = description;

				dialog.ShowNewFolderButton = allowmakedir;

				if ( dialog.ShowDialog( ) == DialogResult.OK )

				{

					Console.WriteLine( dialog.SelectedPath );

					return 0;

				}

				else

				{

					// Cancel was clicked

					return 2;

				}

			}

		}

		static int ShowHelp( params string[] errmsg )

		{

			/*

			OpenFolderBox.exe,  Version 1.02

			Batch tool to present a Browse Folders Dialog and return the selected path

			Usage:  OPENFOLDERBOX  [ "startfolder"  [ "description" ] ]  [ /MD ]

			Where:  "startfolder"  is the initial folder the dialog will show on opening

			                       (default: current directory)

			        "description"  is the text above the dialog's tree view

			                       (default: program name and version)

			        /MD            display the "Make New Folder" button

			                       (default: hide the button)

			Notes:  Though the "Make New Folder" button is hidden by default, this does

			        not inhibit manipulating folders using right-click or Shift+F10.

			        The full path of the selected folder is written to Standard Output

			        if OK was clicked, or an empty string if Cancel was clicked.

			        The return code will be 0 on success, 1 in case of (command line)

			        errors, or 2 if Cancel was clicked.

			Written by Rob van der Woude

			http://www.robvanderwoude.com

			*/

			#region Error Message

			if ( errmsg.Length > 0 )

			{

				List<string> errargs = new List<string>( errmsg );

				errargs.RemoveAt( 0 );

				Console.Error.WriteLine( );

				Console.ForegroundColor = ConsoleColor.Red;

				Console.Error.Write( "ERROR:\t" );

				Console.ForegroundColor = ConsoleColor.White;

				Console.Error.WriteLine( errmsg[0], errargs.ToArray( ) );

				Console.ResetColor( );

			}

			#endregion Error Message

			Console.Error.WriteLine( );

			Console.Error.WriteLine( "OpenFolderBox.exe,  Version {0}", progver );

			Console.Error.WriteLine( "Batch tool to present a Browse Folders Dialog and return the selected path" );

			Console.Error.WriteLine( );

			Console.Error.Write( "Usage:  " );

			Console.ForegroundColor = ConsoleColor.White;

			Console.Error.WriteLine( "OPENFOLDERBOX  [ \"startfolder\"  [ \"description\" ] ]  [ /MD ]" );

			Console.ResetColor( );

			Console.Error.WriteLine( );

			Console.Error.Write( "Where:  " );

			Console.ForegroundColor = ConsoleColor.White;

			Console.Error.Write( "\"startfolder\"" );

			Console.ResetColor( );

			Console.Error.WriteLine( "  is the initial folder the dialog will show on opening" );

			Console.Error.WriteLine( "                       (default: current directory)" );

			Console.ForegroundColor = ConsoleColor.White;

			Console.Error.Write( "        \"description\"" );

			Console.ResetColor( );

			Console.Error.WriteLine( "  is the text above the dialog's tree view" );

			Console.Error.WriteLine( "                       (default: \"OpenFolderBox,  Version {0}\")", progver );

			Console.ForegroundColor = ConsoleColor.White;

			Console.Error.Write( "        /MD" );

			Console.ResetColor( );

			Console.Error.Write( "            display the \"" );

			Console.ForegroundColor = ConsoleColor.White;

			Console.Error.Write( "M" );

			Console.ResetColor( );

			Console.Error.WriteLine( "ake New Folder\" button" );

			Console.Error.WriteLine( "                       (default: hide the button)" );

			Console.Error.WriteLine( );

			Console.Error.WriteLine( "Notes:  Though the \"Make New Folder\" button is hidden by default, this does" );

			Console.Error.WriteLine( "        not inhibit manipulating folders using right-click or Shift+F10." );

			Console.Error.WriteLine( "        The full path of the selected folder is written to Standard Output" );

			Console.Error.WriteLine( "        if OK was clicked, or an empty string if Cancel was clicked." );

			Console.Error.WriteLine( "        The return code will be 0 on success, 1 in case of (command line)" );

			Console.Error.WriteLine( "        errors, or 2 if Cancel was clicked." );

			Console.Error.WriteLine( );

			Console.Error.WriteLine( "Written by Rob van der Woude" );

			Console.Error.WriteLine( "http://www.robvanderwoude.com" );

			return 1;

		}

	}

}