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.
In theory, thereâs no limit to the amount of data you can attach to an email. Email standards donât specify any sort of size limit. In practice, most email servers enforce their own size limits. In general, when attaching files to an email, you can be reasonably sure that up to 10MB of attachments are okay. Some email servers may have smaller limits, but 10MB is generally the standard.