Validating form fields using javascript

We're going to be checking the form using a function, which will be activated by the form's Validating this form would be considerably simpler than one containing radio buttons or select boxes, but any form element can be accessed.

Below are the ways to get the value from all types of form elements.

For example, the [String Length] attribute used on the First Name property specifies the maximum length for First Name to be 50 and Minimum Length to be 3.In this example, you will validate all of the columns except Id, using various data annotation attributes. NET class (POCO) then you can directly decorate its properties with data annotation attributes.However, in this case our model class is an Entity Framework class.When you submit a form to a CGI program that resides on the server, it is usually programmed to do its own check for errors.If it finds any it sends the page back to the reader who then has to re-enter some data, before submitting again.

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