C# Example for adding file attachment does not work and creates confusion for end-user.

[Shweta-1405]

Many of our users have raised concerns for our c# example w.r.t adding file attachment <3 MB.

Example as per documentation -

var graphClient = new GraphServiceClient(requestAdapter);

var requestBody = new Attachment
{
	OdataType = "#microsoft.graph.fileAttachment",
	Name = "menu.txt",
	AdditionalData = new Dictionary<string, object>
	{
		{
			"contentBytes" , "base64bWFjIGFuZCBjaGVlc2UgdG9kYXk="
		},
	},
};
var result = await graphClient.Me.Events["{event-id}"].Attachments.PostAsync(requestBody);

Main concerns -

1. 'contentBytes' is not very clear. Is this a byte array? Our documentation needs to very clearly call what should a user be passing to contentBytes.

2. How is the encoded string passed here(in contentBytes) obtained? How can we do it programmatically from a file instead of directly pasting the string here?

We need to fix our documentation to clearly call out these minute details for our customers to use this seamlessly.

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Document Details

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• ID: 4dd65821-a482-8b49-7da5-4afdcbe6d9f0
• Version Independent ID: d964d80e-c019-aed5-a26e-489a57f0653b
• Content: Add attachment - Microsoft Graph v1.0
• Content Source: api-reference/v1.0/api/message-post-attachments.md
• Product: outlook
• Technology: microsoft-graph
• GitHub Login: @abheek-das
• Microsoft Alias: MSGraphDocsVteam