asp.net 4.0 A potentially dangerous Request.Form value was detected

asp.net 4.0 A potentially dangerous Request.Form value was detected fr...

解决方法：

页面中设置ValidateRequest="false"，asp.net 4.0需要在web.config文件中配置如下结点

<configuration>
    <system.web>
        <httpRuntime requestValidationMode="2.0">

如果是asp.net mvc

需要在对应的Controller Action上增加[ValidateInput(false)] 特性