IsGrantedExtensions.CanDeleteByUser(SecurityStrategy, IPermissionPolicyUser, Object) Method

Checks whether the specified user can delete the specified object.

Namespace: DevExpress.ExpressApp.Security

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

NuGet Package: DevExpress.ExpressApp.Security

Declaration

C#

public static bool CanDeleteByUser(
    this SecurityStrategy security,
    IPermissionPolicyUser targetUser,
    object targetObject
)

VB.NET

<ExtensionAttribute>
Public Shared Function CanDeleteByUser(
    security As SecurityStrategy,
    targetUser As IPermissionPolicyUser,
    targetObject As Object
) As Boolean

Parameters

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

Returns

Type	Description
Boolean	true, if the specified user can delete the specified object; otherwise, false.

Remarks

Important

This overload of the CanDeleteByUser method may reduce performance and cause incorrect behavior in some usage scenarios. We recommend that you always use the CanDeleteByUser 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 : ObjectViewController<ListView, Contact> {
    SecurityStrategy securityStrategy;
    protected override void OnActivated() {
        base.OnActivated();
        securityStrategy = Application.GetSecurityStrategy();
        View.CurrentObjectChanged += View_CurrentObjectChanged;
    }
    private void View_CurrentObjectChanged(object sender, EventArgs e) {
        foreach (IPermissionPolicyUser user in ObjectSpace.GetObjects<ApplicationUser>()) {
            if (!securityStrategy.CanDeleteByUser(user, ViewCurrentObject)) {
                // ...
            }
        }
    }
}