## MailMergeDataType enumeration

Specifies the type of an external mail merge data source.


### Members

| Name | Description |
| --- | --- |
| NONE | No mail merge data source is specified. |
| TEXT_FILE | Specifies that a given document has been connected to a text file via the Dynamic Data Exchange (DDE) system. |
| DATABASE | Specifies that a given document has been connected to an Access database via the Dynamic Data Exchange (DDE) system. |
| SPREADSHEET | Specifies that a given document has been connected to an Excel spreadsheet via the Dynamic Data Exchange (DDE) system. |
| QUERY | Specifies that a given document has been connected to an external data source using an external query tool. |
| ODBC | Specifies that a given document has been connected to an external data source via the Open Database Connectivity interface. |
| NATIVE | Specifies that a given document has been connected to an external data source via the Office Data Source Object (ODSO) interface. |
| DEFAULT | Equals to [MailMergeDataType.NONE](./#NONE). |

### See Also

* module [aspose.words.settings](../)
* property [MailMergeSettings.data_type](../mailmergesettings/data_type/)