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Which base class we have to inherit to develop a custom web part for SharePoint 2007?



Posted By: moss2007 Date: 10 May 2010 12:10:26 PM
 Answer:

There are two base classes that a custom WebPart can inherit from, either the SharePoint WebPart Base class or the ASP.Net 2.0 WebPart base class. When inheriting from the SharePoint WebPart Base class your custom WebPart class will inherit from Microsoft.SharePoint.WebPartPages.WebPart. When inheriting from the ASP.Net 2.0 WebPart base class your custom WebPart class will inherit from System.Web.UI.WebControls.WebParts.WebPart.

It is recommended to use the ASP.Net WebPart base class since the SharePoint WebPart base class is older one and is meant for backwards compatibility with previous version of SharePoint.

But there is an exception as the SharePoint WebPart base class provides following additional capabilities over ASP.Net WebPart base class: 1) Cross page connections
2) Connections between Web Parts that are outside of a Web Part zone
3) Client-side connections (Web Part Page Services Component)
4) Data caching infrastructure


Posted By: Kuldeep Singh

Date: 10 May 2010 12:10:26 PM
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