creating a folder

I am just trying a create a folder where I have a text box, the user inputs the name of the folder in the text box and presses a button and a folder is created with the name in the text box. This was working at one point and now I can’t get it to work.

Can anyone help…

here is the code that I have

--  Textbox_testAppDelegate.applescript
--  Textbox_test
--  Created by Scott Freeman on 3/18/11.
--  Copyright 2011 The Worth Collection,Ltd. All rights reserved.

script Textbox_testAppDelegate
	property parent : class "NSObject"
	property textField : missing value
	on cleartheObject_(sender)
		set this_folder to (path to desktop folder)
		set textFieldValue to (textField's |StringValue|()) as text
		tell application "Finder"
			if not (exists folder textFieldValue of this_folder) then
				make new folder at this_folder with properties {name:textFieldValue}
			end if
		end tell
	end cleartheObject_
	on applicationWillFinishLaunching_(aNotification)
		-- Insert code here to initialize your application before any files are opened 
	end applicationWillFinishLaunching_
	on applicationShouldTerminate_(sender)
		-- Insert code here to do any housekeeping before your application quits 
		return current application's NSTerminateNow
	end applicationShouldTerminate_
end script


Cocoa methods are case sensitive and start always with a lowercase letter

 set textFieldValue to textField's stringValue() as text

Note: As the desktop folder is the “root” folder of application “Finder”
you can omit the specifier this_folder

 if not (exists folder textFieldValue) then

That did it. Thanks for the help.