SnapControl.SnapMailMergeRecordFinished Event

Occurs after data field merging has finished.

Namespace: DevExpress.Snap

Assembly: DevExpress.Snap.v18.2.dll

Declaration

C#

public event SnapMailMergeRecordFinishedEventHandler SnapMailMergeRecordFinished

VB.NET

Public Event SnapMailMergeRecordFinished As SnapMailMergeRecordFinishedEventHandler

Event Data

The SnapMailMergeRecordFinished event's data class is SnapMailMergeRecordFinishedEventArgs. 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	Returns the document that is being merged.
RecordDocument	Provides access to the document created for a single record after the fields are processed.
RecordIndex	Returns the data record index.

Remarks

Handle the SnapMailMergeRecordFinished event to perform any actions after the process of field merging has finished. For example, you can access the data source collection of a single record document using the SnapDocument.DataSources property of the SnapDocument object accessed via the SnapMailMergeRecordFinishedEventArgs.RecordDocument property. If you try to delete or modify the main data source being used for the mail-merge process (i.e., the data source assigned to the DataSource and DataSourceName properties of the SnapMailMergeVisualOptions object), an InvalidOperationException will be thrown.

Note also that when a mail merge is performed in the user interface, the SnapMailMergeRecordFinished event can be raised asynchronously, requiring use of the SnapControl‘s InvokeRequired property in the event handler to determine if it is necessary to call the SnapControl.Invoke method to execute a delegate in a thread that owns the control.

C#

void snapControl1_SnapMailMergeActiveSnapMailMergeRecordFinished(object sender, SnapMailMergeRecordFinishedEventArgs e)
{
    Action d = delegate {
        // Add a method to handle the event.
    };
    if (snapControl1.InvokeRequired)
        snapControl1.Invoke(d);
    else
        d();
}

VB.NET

Private Sub snapControl1_SnapMailMergeRecordFinished(ByVal sender As Object, ByVal e As SnapMailMergeRecordFinishedEventArgs)
    Dim d As Action = Sub()
        ' Add a method to handle the event.
    End Sub
    If snapControl1.InvokeRequired Then
        snapControl1.Invoke(d)
    Else
        d()
    End If
End Sub

Example

This code snippet illustrates how to add text to the document generated by the SnapDocumentServer.SnapMailMerge method for the particular data record with index = 3.

Note

A complete sample project is available at https://github.com/DevExpress-Examples/how-to-automatically-create-mail-merge-documents-using-the-snap-document-server-e5078

Program.cs

static void server_SnapMailMergeRecordFinished(object sender, SnapMailMergeRecordFinishedEventArgs e)
{
    if (e.RecordIndex == 3)
    e.RecordDocument.AppendText("This is the third data record.\r\n");
}