JavaScript Extjs Form Validation before Submit extjs form validation example,extjs form validation on button click,

I have an Extjs form which it needs some validations like when I enter letters instead of numbers, it should alert me before I submit. direct before I enter one number in the field. How can I build that ?

Answer:1

Try this:

onFormSubmit: function(btn, event) {
        var me        = this,
        form      = btn.up('form').getForm();
        if(form.isValid()) {
            //submit form
        }
        else alert('Invalid form');
    }
Answer:2

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