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Sample: Create, retrieve, update, and delete an email attachment

  • Artigo

This sample shows how to create, retrieve, update, and delete email attachments using the following methods:

You can download the sample from here.

Note

This sample applies to both Dynamics 365 Customer Engagement (on-premises) and Dataverse.

How to run this sample

To obtain a local copy of all samples and build them, follow these steps:

  1. Download or clone the Samples repo so that you have a local copy.
  2. (Optional) Edit the dataverse/App.config file to define a connection string specifying the instance/organization you want to connect to.
  3. Open the sample solution in Visual Studio and press F5 to run the sample. After you specify a connection string in dataverse/App.config, any sample you run will use that connection information.

If you don't specify a connection string in dataverse/App.config file, a dialog opens each time you run the sample, and you'll need to enter information about which instance or org you want to connect to and which credentials you want to use. This dialog caches previous connections so that you can choose a previously used connection.

What this sample does

The IOrganizationService message is intended to be used in a scenario that provides programmatic access to the metadata and data for an organization.

How this sample works

In order to simulate the scenario described in What this sample does, the sample will do the following:

Setup

  1. Checks for the current version of the org.
  2. The Email method creates email activity that is required for the sample.

Demonstrate

  1. The ActivityMimeAttachment method creates three email attachments.
  2. The Retrieve method retrieves an attachment including its ID, subject, filename, and body.
  3. The Update method updates the filename of the existing attachment.

Clean up

Display an option to delete the records created in the Setup. The deletion is optional in case you want to examine the entities and data created by the sample. You can manually delete the records to achieve the same result.