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Hi, i am using NumberField field= new NumberField (); for numeric validation and it is woking fine for me,it is addon so i dont want to use this addons. i want achieve this numeric validation on keypress by simple TextField . TextField field= new TextField ();
So you want to use server side Vaadin validation that happens during typing? If this is the case, see MTextField in Viritin add-on. It contains method called setEagerValidation, use that to to turn the feature on. It is also on by default if you use it in AbstractForm or via MBeanFieldGroup.