ActionScript 2.0 Language Reference - Adobe Help and Support

length (TextField.length property)
public length : Number [read-only]
Indicates the number of characters in a text field. This property returns the same value as
text.length, but is faster. A character such as tab (\t) counts as one character.
Availability: ActionScript 1.0; Flash Player 6
Example
The following example outputs the number of characters in the date_txt text field, which
displays the current date.
var today:Date = new Date();
this.createTextField("date_txt", this.getNextHighestDepth(), 10, 10, 100,
22);
date_txt.autoSize = true;
date_txt.text = today.toString();
trace(date_txt.length);
The MovieClip.getNextHighestDepth() method used in this example requires Flash Player
7 or later. If your SWF file includes a version 2 component, use the version 2 components'
DepthManager class instead of the MovieClip.getNextHighestDepth() method.
maxChars (TextField.maxChars property)
public maxChars : Number
Indicates the maximum number of characters that the text field can contain. A script may
insert more text than maxChars allows; the maxChars property indicates only how much text
a user can enter. If the value of this property is null, there is no limit on the amount of text a
user can enter.
Availability: ActionScript 1.0; Flash Player 6
Example
The following example creates a text field called age_txt that only lets users enter up to two
numbers in the field.
this.createTextField("age_txt", this.getNextHighestDepth(), 10, 10, 30,
22);
age_txt.type = "input";
age_txt.border = true;
age_txt.maxChars = 2;
age_txt.restrict = "0-9";
1208 ActionScript classes