ActionScript 2.0 Language Reference 
ActionScript 2.0 Language Reference |
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| ActionScript classes > TextField > removeListener (TextField.removeListener method) | |||
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public removeListener(listener:Object) : Boolean
Removes a listener object previously registered to a text field instance with TextField.addListener().
Availability: ActionScript 1.0; Flash Player 6
listener:Object - The object that will no longer receive notifications from TextField.onChanged or TextField.onScroller.
Boolean - If listener was successfully removed, the method returns a true value. If listener was not successfully removed (for example, if listener was not on the TextField object's listener list), the method returns a value of false.
The following example creates an input text field called my_txt. When the user types into the field, information about the number of characters in the text field is displayed in the Output panel. If the user clicks the removeListener_btn instance, then the listener is removed and information is no longer displayed.
this.createTextField("my_txt", this.getNextHighestDepth(), 10, 10, 160, 20);
my_txt.border = true;
my_txt.type = "input";
var txtListener:Object = new Object();
txtListener.onChanged = function(textfield_txt:TextField) {
trace(textfield_txt+" changed. Current length is: "+textfield_txt.length);
};
my_txt.addListener(txtListener);
removeListener_btn.onRelease = function() {
trace("Removing listener...");
if (!my_txt.removeListener(txtListener)) {
trace("Error! Unable to remove listener");
}
};
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.
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