Asp net validating date field
MVC uses validation attributes in addition to type metadata from model properties to validate data and display any error messages using Java Script.When you use MVC to render form elements from a model using Tag Helpers or HTML helpers it will add HTML 5 data- attributes in the form elements that need validation, as shown below.This includes constraints such as assigning data types or required fields.Other types of validation include applying patterns to data to enforce business rules, such as a credit card, phone number, or email address.
This happens most obviously when users apply You may create client side logic for your custom attribute, and unobtrusive validation will execute it on the client for you automatically as part of validation.These attributes contain validation code, thereby reducing the amount of code you must write.Validation attributes are a way to configure model validation so it’s similar conceptually to validation on fields in database tables.Downloading large sets of data for validating one or a few fields consumes too many resources. An alternative is to make a round-trip request to validate a field.
You can implement remote validation in a two step process.For example, a user may have entered text in a field expecting an integer, or you may need to compute a value for a model’s property. To do so, call the Validation attributes work for most validation needs.