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.NET Framework 4.5.2+

IsGrantedExtensions.CanReadByRole(SecurityStrategy, IPermissionPolicyRole, Object, String) Method

Checks whether the specified role allows reading the specified object or this object’s member.

Namespace: DevExpress.ExpressApp.Security

Assembly: DevExpress.ExpressApp.Security.v21.2.dll

Declaration

public static bool CanReadByRole(
    this SecurityStrategy security,
    IPermissionPolicyRole targetRole,
    object targetObject,
    string memberName = null
)

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.

Optional Parameters

Name Type Default Description
memberName String

null

A String that is a name of the targetObject‘s member this method checks. This parameter is optional.

Returns

Type Description
Boolean

true, if the specified role allows reading the specified object or this object’s member; otherwise, false.

Remarks

The following example shows how to use this method.

using DevExpress.ExpressApp;
using DevExpress.ExpressApp.Security;
using DevExpress.Persistent.Base;
using DevExpress.Persistent.BaseImpl.EF.PermissionPolicy;
using System;
// ...
public class CheckReadPermissionController : 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 (IPermissionPolicyRole role in ObjectSpace.GetObjects<PermissionPolicyRole>()) {
            if (!securityStrategy.CanReadByRole(role, ViewCurrentObject.Department, nameof(Department.Office))) {
                // ...
            }
        }
    }
}
See Also