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How to: Generate Master-Detail Mail Merge Documents

Important

The Universal Subscription or an additional Document Server Subscription is required to use this example in production code. Please refer to the DevExpress Subscription page for pricing information.

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The complete sample project is available in the DevExpress Code Examples database at http://www.devexpress.com/example=E5078.

The following code uses the Snap API to generate a mail-merge report in the context of the DevExpress Document Server.

It is a console application that creates a document and then exports it to an RTF file.

To use the SnapDocumentServer, the project requires references to the following assemblies:

  • DevExpress.Data.v17.1.dll
  • DevExpress.Docs.v17.1.dll
  • DevExpress.Office.v17.1.Core.dll
  • DevExpress.RichEdit.v17.1.Core.dll
  • DevExpress.Snap.v17.1.Core.dll

To perform mail merge, the application requires a template - a file in the native .SNX format which contains the document layout, specific fields and data source information. The template file must be created beforehand using the Snap Design Surface. For an example of template creation, review the Lesson 3 - Create a Mail Merge Report.

The code handles the SnapDocumentServer.SnapMailMergeRecordStarted and SnapDocumentServer.SnapMailMergeRecordFinished events to make adjustments to the merged document created for the particular data record.

The server loads a mail merge template using the RichEditDocumentServer.LoadDocument method. Subsequently, the code assigns the data source by specifying the IDataSourceOwner.DataSource property. The mail merge operation is performed by calling the SnapDocumentServer.SnapMailMerge method.

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