RuleSet.ValidateAllTargets(IObjectSpace, IEnumerable, ContextIdentifiers) Method

Silently (without raising the RuleSet.ValidationCompleted event and throwing the ValidationException) validates multiple targets and returns the result.

Namespace: DevExpress.Persistent.Validation

Assembly: DevExpress.Persistent.Base.v23.2.dll

NuGet Package: DevExpress.Persistent.Base

Declaration

C#

public RuleSetValidationResult ValidateAllTargets(
    IObjectSpace targetObjectSpace,
    IEnumerable targets,
    ContextIdentifiers contextIDs
)

VB.NET

Public Function ValidateAllTargets(
    targetObjectSpace As IObjectSpace,
    targets As IEnumerable,
    contextIDs As ContextIdentifiers
) As RuleSetValidationResult

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.

Returns

Type	Description
DevExpress.Persistent.Validation.RuleSetValidationResult	The result of the RuleSet validation.

Remarks

Below is the example of using the ValidateAllTargets method and handling its result.

C#

RuleSetValidationResult validationResult = Validator.RuleSet.ValidateAllTargets(
    ObjectSpace, ObjectSpace.GetObjectsToSave(false), ContextIdentifier.Save);
ValidationResults obj = new ValidationResults(validationResult, base.Application.Model);
bool flag = validationResult.State != ValidationState.Invalid;

VB.NET

Dim validationResult As RuleSetValidationResult = Validator.RuleSet.ValidateAllTargets( _
ObjectSpace, ObjectSpace.GetObjectsToSave(False), ContextIdentifier.Save)
Dim obj As New ValidationResults(validationResult, MyBase.Application.Model)
Dim flag As Boolean = validationResult.State <> ValidationState.Invalid

This method raises the RuleSet.RuleValidated event for each target.

Related GitHub Examples

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the ValidateAllTargets(IObjectSpace, IEnumerable, ContextIdentifiers) method.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

xaf-how-to-highlight-invalid-properties-when-a-view-is-activated/CS/DXSample.Module/ImmediateValidationController.cs#L55

if (resultsHighlightController != null) {
    RuleSetValidationResult result = Validator.RuleSet.ValidateAllTargets(ObjectSpace, targets, DefaultContexts.Save);
    if (result.ValidationOutcome == ValidationOutcome.Error || result.ValidationOutcome == ValidationOutcome.Warning || result.ValidationOutcome == ValidationOutcome.Information) {

VB.NET

xaf-how-to-highlight-invalid-properties-when-a-view-is-activated/VB/DXSample.Module/ImmediateValidationController.vb#L61

If resultsHighlightController IsNot Nothing Then
    Dim result As RuleSetValidationResult = Validator.RuleSet.ValidateAllTargets(ObjectSpace, targets, DefaultContexts.Save)
    If result.ValidationOutcome = ValidationOutcome.Error OrElse result.ValidationOutcome = ValidationOutcome.Warning OrElse result.ValidationOutcome = ValidationOutcome.Information Then