RuleSet.ValidateAll(IObjectSpace, IEnumerable, ContextIdentifiers, ValidationFailedDelegate) Method

Validates multiple objects against RuleSet‘s rules with the given validation contexts, returns a result and throws a ValidationException if the validation fails.

Namespace: DevExpress.Persistent.Validation

Assembly: DevExpress.Persistent.Base.v18.2.dll

Declaration

C#

public bool ValidateAll(
    IObjectSpace targetObjectSpace,
    IEnumerable targets,
    ContextIdentifiers contextIDs,
    ValidationFailedDelegate validationFailedDelegate
)

VB.NET

Public Function ValidateAll(
    targetObjectSpace As IObjectSpace,
    targets As IEnumerable,
    contextIDs As ContextIdentifiers,
    validationFailedDelegate As ValidationFailedDelegate
) As Boolean

Parameters

Name	Type	Description
targetObjectSpace	IObjectSpace	An IObjectSpace used by a validation target.
targets	IEnumerable	The list of objects to check.
contextIDs	ContextIdentifiers	The ContextIdentifiers object which is a set of validation contexts, rules for which will be collected. Default contexts are stored in the DefaultContexts enumeration.
validationFailedDelegate	DevExpress.Persistent.Validation.ValidationFailedDelegate	A method to call if the validation fails.

Returns

Type	Description
Boolean	true, if validation passes; otherwise, false.

Remarks

This method raises the RuleSet.RuleValidated event for each target and the RuleSet.ValidationCompleted event at the end of validation.