I suggest reading the documentation on the date format to see why you're making the wrong assumption.
The below suggested date validation (from another note) does NOT work for ALL formats and date inputs.function validate Date($date, $format = 'Y-m-d H:i:s')A couple of examples should suffice as a warning to test carefully and particularly not to use code that allows passing in of just any date format string:var_dump(validate Date('7/01/16', 'n/j/y')); # false but should be truevar_dump(validate Date('7/1/16', 'm/d/y')); # false but should be true Sorry, I don't have a suggested correction.
event handler displays an error message to the user.
If the value is a valid Date Time, the code verifies that the date supplied is not prior to today's date.
You apply the validators to the meta data class instead of applying the validators to the actual class.
Take advantage of the Data Annotation Model Binder to perform validation within an ASP. Learn how to use the different types of validator attributes and work with them in the Microsoft Entity Framework. Finally, the Unit Price property must match a regular expression pattern that represents a currency amount.
In this tutorial, you learn how to use the Data Annotation validators to perform validation in an ASP. The advantage of using the Data Annotation validators is that they enable you to perform validation simply by adding one or more attributes – such as the Required or String Length attribute – to a class property. Listing 1: Models\The Product class illustrates how to use one additional attribute: the Display Name attribute.
If you submit the form for creating a Product and you do not enter values for the required fields, then the validation error messages in Figure 3 are displayed.
Figure 3: Missing required fields If you enter an invalid currency amount, then the error message in Figure 4 is displayed.