IsGrantedExtensions.CanExecuteByUser(SecurityStrategy, IPermissionPolicyUser, String) Method

Checks whether the specified user can execute the specified Action.

Namespace: DevExpress.ExpressApp.Security

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

NuGet Package: DevExpress.ExpressApp.Security

Declaration

C#

public static bool CanExecuteByUser(
    this SecurityStrategy security,
    IPermissionPolicyUser targetUser,
    string actionId
)

VB.NET

<ExtensionAttribute>
Public Shared Function CanExecuteByUser(
    security As SecurityStrategy,
    targetUser As IPermissionPolicyUser,
    actionId As String
) 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.
actionId	String	An identifier of an Action this method checks.

Returns

Type	Description
Boolean	true, if the specified user can execute the specified Action; otherwise, false.

Remarks

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;
// ...
public class CheckActionPermissionController : ViewController<ListView> {
    protected override void OnActivated() {
        base.OnActivated();
        SecurityStrategy securityStrategy = Application.GetSecurityStrategy();
        foreach (IPermissionPolicyUser user in ObjectSpace.GetObjects<ApplicationUser>()) {
            if (securityStrategy.CanExecuteByUser(user, "CustomAction")) {
                // ...
            }
        }
    }
}

VB.NET

Imports DevExpress.ExpressApp
Imports DevExpress.ExpressApp.Security
Imports DevExpress.Persistent.Base
Imports DevExpress.Persistent.BaseImpl.PermissionPolicy
' ...
Public Class CheckActionPermissionController
    Inherits ViewController(Of ListView)
    Protected Overrides Sub OnActivated()
        MyBase.OnActivated()
        Dim securityStrategy As SecurityStrategy = Application.GetSecurityStrategy()
        For Each user As IPermissionPolicyUser In ObjectSpace.GetObjects(Of PermissionPolicyUser)()
            If securityStrategy.CanExecuteByUser(user, "CustomAction") Then
                ' ...
            End If
        Next user
    End Sub
End Class

You can find an Action’s identifier in the Model Editor: