Sharepoint Library site detection

Question

When I go to a page in sharepoint portal. How to detect that is library page or list (not calendar or task ...)

Answer 1

Try:

SPList list = SPContext.Current.List;
if (list.BaseTemplate == SPListTemplateType.DocumentLibrary || 
    list.BaseTemplate == SPListTemplateType.GenericList)
{
    // Current Page is associated with a Document Library or Custom List
}