FileAttachmentsOptions.CustomOpenFileWithDefaultProgram Event

Occurs prior to opening an attached file via its associated program.

Namespace: DevExpress.ExpressApp.FileAttachments.Win

Assembly: DevExpress.ExpressApp.FileAttachment.Win.v24.2.dll

NuGet Package: DevExpress.ExpressApp.FileAttachment.Win

Declaration

C#

public event EventHandler<CustomFileOperationEventArgs> CustomOpenFileWithDefaultProgram

VB.NET

Public Event CustomOpenFileWithDefaultProgram As EventHandler(Of CustomFileOperationEventArgs)

Event Data

The CustomOpenFileWithDefaultProgram event's data class is CustomFileOperationEventArgs. The following properties provide information specific to this event:

Property	Description
FileData	Specifies a file about to be opened via its associated program.
Handled	Gets or sets a value that indicates whether the event handler has completely handled the event or whether the system should continue its own processing. Inherited from HandledEventArgs.

Remarks

For more information, refer to the following Module event description: CustomOpenFileWithDefaultProgram.

The following example demonstrates how to handle this event:

File: MySolution.Win\Startup.cs.

C#

using DevExpress.ExpressApp.ApplicationBuilder;
using DevExpress.ExpressApp.Win.ApplicationBuilder;
// ...
public class ApplicationBuilder : IDesignTimeApplicationFactory {
    public static WinApplication BuildApplication(string connectionString) {
        var builder = WinApplication.CreateBuilder();
        builder.UseApplication<MySolutionWindowsFormsApplication>();
        builder.Modules
            // ...
            .AddFileAttachments(options => {
                options.CustomOpenFileWithDefaultProgram += (s, e) => {
                    // ...
                };
            })
        // ...
    }
    // ...
}