A validation rule that demands that a validated field has a value.
Specifies the message that is shown for end-users if the current rule is broken.
You do not have to specify this field. If you chose not to specify it, a default message will be shown. To include the name of the validated editor into the default validation message as a subject, set the name field of the dxValidator object.
If you assign an empty string to the message field, the message will not be shown.
Indicates whether to remove the Space characters from the validated value.
To keep the Space characters within the validated value, set this field to false.
Specifies the type of the current rule.
Set this field to "required" to define a rule that will be broken if the validated value is not specified.
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