IRuleSet.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.v25.2.dll

NuGet Package: DevExpress.Persistent.Base

Declaration

C#

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

VB.NET

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 for which rules will be collected. Default contexts are stored in the DefaultContexts enumeration.

Returns

Type	Description
DevExpress.Persistent.Validation.RuleSetValidationResult	The validation result. If all rules are satisfied, the RuleSetValidationResult.IsValid property returns true; otherwise, it returns false

Remarks

The following code snippet demonstrates how to use this method to validate objects when an Action is executed:

C#

using DevExpress.ExpressApp;
using DevExpress.ExpressApp.Actions;
using DevExpress.Persistent.Base;
using DevExpress.Persistent.Validation;
// ...
public partial class CustomValidationController : ViewController {
    public CustomValidationController() {
        SimpleAction validationAction = new SimpleAction(this, "ValidateBeforeSave", PredefinedCategory.Edit);
        validationAction.Execute += ValidationAction_Execute;
    }
    private void ValidationAction_Execute(object sender, SimpleActionExecuteEventArgs e) {
        RuleSetValidationResult validationResult = Validator.GetService(Application.ServiceProvider)
            .ValidateAllTargets(ObjectSpace, ObjectSpace.GetObjectsToSave(false), ContextIdentifier.Save);
        ValidationResults obj = new ValidationResults(validationResult, base.Application.Model);
        bool flag = validationResult.State != ValidationState.Invalid;
    }
}

Related GitHub Examples

The following code snippets (auto-collected from DevExpress Examples) contain references 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-use-data-from-security-in-criterion/CS/EF/CustomOperatorEF/CustomOperatorEF.WebApi/API/CustomEndpointController.cs#L25

var obj = newObjectSpace.CreateObject<ValidatedObject>();
var validationResult = validator.RuleSet.ValidateAllTargets(newObjectSpace, new object[] { obj }, DefaultContexts.Save);

xaf-how-to-highlight-invalid-properties-when-a-view-is-activated/CS/EFCore/ValidateHighlightEF/ValidateHighlightEF.Module/Controllers/ImmediateValidationController.cs#L56

IRuleSet ruleSet = Validator.GetService(Application.ServiceProvider);
RuleSetValidationResult result = ruleSet.ValidateAllTargets(ObjectSpace, targets, DefaultContexts.Save);
if (result.ValidationOutcome == ValidationOutcome.Error || result.ValidationOutcome == ValidationOutcome.Warning || result.ValidationOutcome == ValidationOutcome.Information) {