a .net data provider is a collection of objects used to communicate between a data source and a data set in other words a data provider is used to communicate with a data source i e database execute commands against the data source and then retrieve results from the data source
By default, the work item file attachment size limit is 2,048 kilobytes (2 MB). For information on how to change the attachment size limit, see How to: Set the Maximum Attachment Size for Work Items. Consider the implications carefully before changing the default attachment size limit. Changing the attachment limit value will alter the attachment size limit for all Team Foundation Server users.
Even if your message doesnât exceed the Outlook or Exchange Server attachment size limits, there is a chance your recipientâs email provider might block messages that include large attachments. To help reduce the size of attachments that you send in Outlook, see Reduce the size of pictures and attachments. In addition to mail provider limits on total message size, sending large attachments through email is not always the best solution.