Vaadin 7 Cookbook by Unknown

Author:Unknown
Language: eng
Format: epub
Publisher: Packt Publishing

Next, we can use our EmailField class in the Demo class. We use FormLayout that shows the caption on the left of the text field. @Override protected void init(VaadinRequest request) { FormLayout layout = new FormLayout(); layout.setMargin(true); setContent(layout); EmailField field = new EmailField("Email:"); layout.addComponent(field); } }

That's all. We can run the server and open our application in the web browser.

How it works...

Validators are added using the addValidator() method inherited from the AbstractField class. All validators added to a field are checked each time its value changes. Another way of validation is to use converters. They are used to convert between the UI and the data model type.

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