Unable to use DateTimeControl in SandBox solution

If you are developing a web part in SharePoint 2010 and want to deploy the web part as Sandbox solution then you will not be able to use controls from SharePoint namespace like DateTimeControl.
Also you will not able to do a Page.Redirect from a Sandbox web part. If you really need to do these things, then for now you will have to change your web part to a farm based solution rather than a Sandbox solution.

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