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A Web Part is an individual component of content that can be placed on a SharePoint page, in either a zone in a Web Part page or in Rich Content areas of the Wiki Content page. Web Parts can be moved, added, and deleted, framed by borders and titles, and closed and reopened, depending on your need.
To put everything in simple terms, SharePoint consists of 3 major building blocks: Sites – used to organize various types of content (web parts) Pages – used to display content (web parts) on a site. Web Part – used to store particular content/information (i.e. documents, events, contacts).
What are SharePoint app parts?
Some apps for SharePoint include App Parts that you can add to a page on your SharePoint site to display data or information associated with the app. If you’ve installed a third-party app from the SharePoint Store, the details or description for that app should tell you whether or not the app includes an App Part.
What are SharePoint components?
SharePoint sites can contain many user facing SharePoint features such as Document Libraries, Lists, Wikis, Blogs, and Discussion Boards. Document Libraries: A mechanism for storing content within SharePoint.
From what I know both of web part and add-ins (SharePoint-hosted add-ins) can give a custom functionality to a SharePoint page. And the only differences I know is that web part can be added via server-side control and reusable to any pages in a site.
SharePoint Add-ins. There are two basic kinds of SharePoint Add-ins: SharePoint-hosted and provider-hosted. To make the best decision about the right kind to develop for your scenario, start by learning what both types of SharePoint Add-ins have in common.
Where do I find the add in page for SharePoint?
After you deploy the add-in in either way, it’s available for installation on the add an add-in page of SharePoint websites. If the add-in needs permissions to the host web or its parent subscription, SharePoint prompts the user who installs the add-in to grant those permissions.
Can a SharePoint component be in a hosted add in?
Any SharePoint component that can be in a SharePoint-hosted add-in can also be in a provider-hosted add-in.