IModalService Interface

Definition

Enables notification to a host application that a modal dialog is displayed.

C#
public interface IModalService

Remarks

Some applications that host designers need to be notified when a modal dialog box has been invoked. Visual Studio is an example of such a host. The IModalService interface provides an interface to communicate the current modal status.

The Windows Workflow Designer calls the SetModalState method. When the isModal parameter is set to true, the host is notified that a modal dialog is displayed.

This is an optional service. If a host application does not care about the modal status, you need not use the service.

In the current implementation, if a Windows Presentation Foundation (WPF) message box (which is a modal dialog) is invoked, the SetModalState is not called. If the host application requires this information, another workaround must be created.

Methods

SetModalState(Boolean)

Notifies the host application that a modal dialog is being displayed.

Applies to

Product Versions
.NET Framework 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1