更改装入的javascript的顺序...

Change the order of the loaded javascript...

<script src="../../Scripts/jquery-1.4.1.min.js" type="text/javascript"></script>
<script src="../../Scripts/MicrosoftAjax.js" type="text/javascript"></script>
<script src="../../Scripts/MicrosoftMvcAjax.js" type="text/javascript"></script>
<script src="../../Scripts/MicrosoftMvcValidation.js" type="text/javascript"></script>

有完全相同的问题，这清除了它为我...

Had the exact same problem and this cleared it up for me...