SecuritySystem.Demand(IPermissionRequest) Method

Throws a SecurityException exception when the current user is allowed to execute a particular secured operation.

Namespace: DevExpress.ExpressApp

Assembly: DevExpress.ExpressApp.v18.2.dll

Declaration

C#

public static void Demand(
    IPermissionRequest permissionRequest
)

VB.NET

Public Shared Sub Demand(
    permissionRequest As IPermissionRequest
)

Parameters

Name	Type	Description
permissionRequest	IPermissionRequest	An IPermissionRequest object that specifies the secured operation.

Remarks

The passed Permission Request should have an appropriate Permission Request Processor registered within Security Strategy. To register a Permission Request, handle the SecurityStrategy.CustomizeRequestProcessors event. Refer to the How to: Implement Custom Security Objects (Users, Roles, Operation Permissions) topic to see an example.

Related GitHub Examples

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the Demand(IPermissionRequest) 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#

how-to-implement-a-custom-security-operation-that-can-be-permitted-at-the-type-level-e4483/CS/CustomSecurityOperation.Module/Controllers/SecuredExportController.cs#L23

void ExportAction_Executing(object sender, System.ComponentModel.CancelEventArgs e) {
    SecuritySystem.Demand(new ExportPermissionRequest(View.ObjectTypeInfo.Type));
}

VB.NET

how-to-implement-a-custom-security-operation-that-can-be-permitted-at-the-type-level-e4483/VB/CustomSecurityOperation.Module/Controllers/SecuredExportController.vb#L23

Private Sub ExportAction_Executing(ByVal sender As Object, ByVal e As System.ComponentModel.CancelEventArgs)
    SecuritySystem.Demand(New ExportPermissionRequest(View.ObjectTypeInfo.Type))
End Sub