Extjs TextField filter special characters

Extjs TextField filter special characters


TextBoxNoSpecial = Ext.extend(Ext.form.TextField,{
	initEvents : function(){
		var keyPress = function(e){
			var limitChar = '!@#$%^&*()-_+=|\\{[}]"\':;<,>.?/~`';
			var c = e.getCharCode();
this is still not good, for it can only filter characters defined in limitChar.
If those characters can be specified by user will be better!
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