IsGrantedExtensions.CanDeleteByRole(SecurityStrategy, IPermissionPolicyRole, Object) Method

Checks whether the specified role allows deleting the specified object.

Namespace: DevExpress.ExpressApp.Security

Assembly: DevExpress.ExpressApp.Security.v23.2.dll

NuGet Package: DevExpress.ExpressApp.Security

Declaration

C#

public static bool CanDeleteByRole(
    this SecurityStrategy security,
    IPermissionPolicyRole targetRole,
    object targetObject
)

VB.NET

<ExtensionAttribute>
Public Shared Function CanDeleteByRole(
    security As SecurityStrategy,
    targetRole As IPermissionPolicyRole,
    targetObject As Object
) As Boolean

Parameters

Name	Type	Description
security	SecurityStrategy	A SecurityStrategy object that specifies an application’s Security Strategy.
targetRole	IPermissionPolicyRole	An IPermissionPolicyRole object that is a role this method checks.
targetObject	Object	An Object this method checks.

Returns

Type	Description
Boolean	true, the specified role allows deleting the specified object; otherwise, false.

Remarks

Important

This overload of the CanDeleteByRole method may reduce performance and cause incorrect behavior in some usage scenarios. We recommend that you always use the CanDeleteByRole method’s overloads that accept an Object Space as a parameter to check permissions for a specific object.

The following example shows how to use this method.

C#

using DevExpress.ExpressApp;
using DevExpress.ExpressApp.Security;
using DevExpress.Persistent.Base;
using DevExpress.Persistent.BaseImpl.PermissionPolicy;
using System;
// ...
public class CheckDeletePermissionController : ViewController<ListView> {
    SecurityStrategy securityStrategy;
    protected override void OnActivated() {
        base.OnActivated();
        securityStrategy = Application.GetSecurityStrategy();
        View.CurrentObjectChanged += View_CurrentObjectChanged;
    }
    private void View_CurrentObjectChanged(object sender, EventArgs e) {
        foreach (IPermissionPolicyRole role in ObjectSpace.GetObjects<PermissionPolicyRole>()) {
            if (!securityStrategy.CanDeleteByRole(role, View.CurrentObject)) {
                // ...
            }
        }
    }
}