多謝Wizard的提醒,這真是歷史性的一刻啊... Microsoft® Silverlight™ 3 Tools for Visual Studio 2008 SP1 http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=9442b0f2-7465-417a-88f3-5e7b5409e9dd 不過, 果然不出我所料... 把先前安裝的開發人員Run Time移除之後, 就可以了... 對於很多人來說 或許3.0是一個好的起點, 過去擔心不穩定、功能不足、或安全性的疑慮逐漸淡去, 接著我們也將會看到開發工具更全面的配合...嘿嘿, Developer們, 是否開始準備大展身手了呢? 補充一下, 別忘了要安裝新版的Blend 3, 否則將無法以所視及所得的方式來編輯Xaml檔案: http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=92e1db7a-5d36-449b-8c6b-d25f078f3609 是的, SL 3 Tools for VS2008 Sp1中, 取消了在VS2008中preview Xaml檔案的功能...>_< (修正一下, 是預設隱藏了預覽功能, 感謝Jeff的提醒) , 我也發現了似乎還是被支援, 但是又看到網路上有底下這一段: Design Preview Disabled in Silverlight 3 Tools Due to performance and rendering issues, the preview window has been disabled in the Silverlight 3 Tools for Visual Studio 2008. The functionality of the XAML editor remains intact, including IntelliSense, error messages, and the ability to drag controls from the Toolbox into the editor. WYSIWYG XAML design ca