RichEditControl.MailMergeStarted Event

Fires before mail merge starts.

Namespace: DevExpress.XtraRichEdit

Assembly: DevExpress.XtraRichEdit.v23.2.dll

NuGet Packages: DevExpress.Win.PivotGrid, DevExpress.Win.RichEdit, DevExpress.Win.TreeMap

Declaration

C#

public event MailMergeStartedEventHandler MailMergeStarted

VB.NET

Public Event MailMergeStarted As MailMergeStartedEventHandler

Event Data

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

Property	Description
Cancel	Gets or sets a value indicating whether the event should be canceled. Inherited from CancelEventArgs.
Document	Gets a merged document.
OperationDescription	Specifies the text displayed by the progress indicator while the document is being rendered.

Remarks

You can handle this event to inform a user that a mail merge has started, since this process can be time consuming. The following code snippet shows that the MailMergeStarted event is used to register a custom service for updating progress indicator on the form.

View Example

Form1.cs

using DevExpress.XtraRichEdit;
using DevExpress.XtraRichEdit.API.Native;
using DevExpress.Services;
//...

private void richEditControl1_MailMergeStarted(object sender, MailMergeStartedEventArgs e) {
    richEditControl1.RemoveService(typeof(IProgressIndicationService));
    richEditControl1.AddService(typeof(IProgressIndicationService),
        new MyProgressIndicatorService(richEditControl1, this.progressBarControl1));
}

Form1.vb

Imports DevExpress.XtraRichEdit
Imports DevExpress.XtraRichEdit.API.Native
Imports DevExpress.Services
'...

Private Sub richEditControl1_MailMergeStarted(ByVal sender As Object, ByVal e As MailMergeStartedEventArgs) Handles richEditControl1.MailMergeStarted
    richEditControl1.RemoveService(GetType(IProgressIndicationService))
    richEditControl1.AddService(GetType(IProgressIndicationService), New MyProgressIndicatorService(richEditControl1, Me.progressBarControl1))
End Sub