Custom Validator

You can create your own custom validator.

const TextIsNotFooBarValidator = (value:any, oldValue:any, params:any) => {
   return ({
     valid: value != "FooBar",
     message: "Value contains FooBar"
   })
}

Default Validators

You can use built-in validators included in the package.

RequiredFieldValidator

This validator is used to make an input control required.

Parameter	Description	Default Value
message	Message to display on validation message.	"Value Required!"
type	Values are string, number, datetime, boolean, list, or just leave it blank. If type is set to string, it will check for null or empty (trimmed) value. If type is number, it will check if it has a number value. If the type datetime checks for a valid date value. If type is boolean, it checks for a true/checked value. If type is list, it checks if the value is an array and has at least 1 value inside.	null

NumberInputFieldValidator

This validator is used to ensure input value is number.

Parameter	Description	Default Value
message	Message to display on validation message.	"Value must be a number!"

NumberRangeFieldValidator

This validator evaluates the value of an input control to check that the value lies between specified ranges.

Parameter	Description	Default Value
message	Message to display on validation message.	"Invalid value range!"
min	Minimum number of the range.	−9007199254740991
max	Maximum number of the range.	9007199254740991

DateTimeRangeFieldValidator

This validator evaluates the value of an input control to check that the date value lies between specified ranges.

Parameter	Description	Default Value
message	Message to display on validation message.	"Invalid date range value!"
min	Minimum datetim of the range.	"01/01/1900, 12:00:00 AM"
max	Maximum datetime of the range.	"01/31/100000, 12:00:00 AM"

EmailFieldValidator

This validator evaluates the value of input control value is a valid email address.

Parameter	Description	Default Value
message	Message to display on validation message.	"Invalid email value!"

UrlFieldValidator

This validator evaluates the value of input control value is a valid url address.

Parameter	Description	Default Value
message	Message to display on validation message.	"Invalid url value!"

StringLengthFieldValidator

This validator evaluates the value of an input control to check that the string value length lies between specified ranges.

Parameter	Description	Default Value
message	Message to display on validation message.	"Invalid character count!"
min	Minimum characters to check.	0
max	Maximum characters to check.	9007199254740991

SelectedItemCountFieldValidator

This validator evaluates the value of an input control to check that the number of selected items count lies between specified ranges.

Parameter	Description	Default Value
message	Message to display on validation message.	"Please select at least ${min} items."
min	Minimum items to check.	1
max	Maximum items to check.	9007199254740991