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 End-User Documentation

DXValidationProvider.ValidationMode Property

Gets or sets the validation mode.

Namespace:DevExpress.XtraEditors.DXErrorProvider
Assembly:DevExpress.XtraEditors.v17.2.dll

Expanded Syntax

Property value

Type: ValidationMode
A DevExpress.XtraEditors.DXErrorProvider.ValidationMode enumeration value that specifies the validation mode.
The default is ValidationMode.Default.

Expanded Remarks

By default, automatic checking is disabled. You should manualy invoke the validation mechanism when required. To do this, use the Validate method.

To enable automatic validation, set the ValidationMode property to Auto. In this case, an editor's value will be automatically checked against the associated validation rule when data must be validated (for instance, when focus moves to another control).

Expanded Example

This example demonstrates how to validate data via the DXValidationProvider component. In this example, validation rules (built-in and custom) are created in code, and associated with editors using the SetValidationRule method.

The CustomValidationRule class represents a custom validation rule that checks whether the editor's value begins with "Dr.", "Mr.", "Mrs.", "Miss" or "Ms.".

Expanded See Also

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