Block invalid characters

You can prevent users from entering invalid characters in a Validation Text Field widget. For example, if you set this option for a widget set with the Integer validation type, nothing appears in the text field if the user tries to type a letter.

You must specify a validation type for this option because the specification of the third parameter depends on the second parameter. If no validation type is required, specify "none" as your validation type.

This option does not work in older browsers.

To block invalid characters, add the useCharacterMasking property to the constructor and set its value to true, as follows:

<script type="text/javascript">
	var tf1 = new Spry.Widget.ValidationTextField("textfieldwidget1", "validation_type", {useCharacterMasking:true});
</script>