Home » Documentation » Reference manual » Required validator

ValidatorEntryRequired

Full path

Declaration

Hierarchy

Click on the selected class to view any properties or methods that may be accessible through an instance of this class through inheritance.

Overview

The ValidatorEntryRequired class is used to validate a field for blankness. It tests the value of the object passed to the constructor for a value that is not equal to an empty string. If the value is empty, validation will fail for the object. You can negate the validation so that the value of the object must be blank. This is useful when creating complex validation rules using the ValidatorEntryAnd and ValidatorEntryOr classes.

The ValidatorEntryRequired class can be used with form fields of any type. The value that gets tested from a radio list or select list is the tag value of the list, not the display value. For form fields that return array types, if the array has a zero length, then the value is considered to be blank. Multiple select lists are of this variety.

Constructors

• ValidatorEntryRequired(object o, string sMessage, string sHighlightElement)
• ValidatorEntryRequired(object o, string sMessage, string sHighlightElement, bool bNegate)

---

Constructors

ValidatorEntryRequired

Creates a ValidatorEntryRequired validating the object o, with a message and a client-side highlight element signature.

ValidatorEntryRequired

Creates a ValidatorEntryRequired validating the object o, with a message, a client-side highlight element signature and a negate boolean.