Disallow users from entering the Control-Z into a field : Filter « TextField « Flash / Flex / ActionScript

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Flash / Flex / ActionScript » TextField » Filter

Disallow users from entering the Control-Z into a field

 



package {



  import flash.display.Sprite;

  import flash.text.TextField;

  public class Main extends Sprite {

    public function Main(  ) {

      var field:TextField = new TextField(  );

      field.type = flash.text.TextFieldType.INPUT;

      field.border = true;

      field.background = true; 

      field.restrict = "^\u001A";

      addChild(field);

    }

  }

}

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1.	Filtering Text Input
2.	Allow only upper- and lowercase letters
3.	Allow only letters and spaces
4.	Allow only numbers
5.	Allows all except lowercase a through g
6.	Disallows all lowercase letters (but allows other characters, including uppercase
7.	Allows numbers only, with the exception of 5
8.	Allow numbers and dashes
9.	Allow numbers and caret marks
10.	Escape the backslash character
11.	caret (^) marks anything after the caret as disallowed and anything before it or not listed as acceptable:
12.	maxChars sets the maximum number of characters that a TextField can contain

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