WEB | C# MasterPage Refresh

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Problema: Numa página ASP usando MasterPages, ao seleccionar um item no MenuBar, é feito o “Refresh” total da aplicação, e pretende-se que se faça apenas refresh da nova página a abrir, correspondente ao contentor da MasterPage.

Solução: Usar Iframes, pois o postback assíncrono impede reload apenas do container.
Ou utilizar um indicador mínimo de transição para abrir a página apenas quando estiver alocada em memória.
Ex.: <meta content="BlendTrans(Duration=0.01)" http-equiv="Page-Exit" />

Fonte: Fóruns ASP .NET
http://forums.microsoft.com/MSDN-BR/ShowPost.aspx?PostID=452379&SiteID=21

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