File Attachment to Notes – Dynamics CRM 4.0

In Dynamics CRM 4.0, file attachment to entities is pretty simple as compared to CRM 3.0. UploadFromBase64DataAnnotationRequest and UploadFromBase64DataAnnotationResponse object are both deprecated. Instead a new attribute has been introduces in annotation object with documentbody that accepts string in base64 encoding. Please find the below sample:
 
Reading file data into Byte array and then converting it [...]