关于visual studio 2010 此方法显式使用的 CAS 策略已被 .NET Framework 弃用 的问题

GDY__GDY 2011-08-03 10:59:04
大家好，我在vs2010中使用了DevExpress组件，我在用Visual studio 2010从工具箱中向窗口拖动控件时显示如下提示：

创建组件“ToolTipController”失败。错误消息为:
“System.TypeInitializationException: “DevExpress.Utils.AppearanceObject”的类型初始值设定项引发异常。 ---> System.NotSupportedException: 此方法显式使用的 CAS 策略已被 .NET Framework 弃用。若要出于兼容性原因而启用 CAS 策略，请使用 NetFx40_LegacySecurityPolicy 配置开关。有关详细信息，请参见 http://go.microsoft.com/fwlink/?LinkID=155570。
在 System.Security.SecurityManager.ResolvePolicy(Evidence evidence)
在 DevExpress.Data.Helpers.SecurityHelper.IsPermissionGranted(IPermission permission)
在 DevExpress.Utils.Design.DXAssemblyResolverEx.Init()
在 DevExpress.Utils.AppearanceObject..cctor()
--- 内部异常堆栈跟踪的结尾 ---
在 DevExpress.Utils.ToolTipControllerShowEventArgs..ctor(Control control, Object obj, Object dummy)
在 DevExpress.Utils.ToolTipController..ctor()”

经上网查询，说是CAS（代码访问安全）在.net frame work 4.0中改了，不是像以前版本的framework那样了，就因为有这个限制拖动控件的时候才有这个警告，但是拖动System.Window.Form下原有的控件，比如按钮什么的是不会报错的，通过网上的意见我在程序的App.config中添加了如下的内容：
<runtime>
<NetFx40_LegacySecurityPolicy enabled="true"/>
</runtime>
不幸的是问题依旧啊，请问以前用过vs2010的，这个怎么解决啊，谢谢了，很急
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ming_qz 2013-09-22
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楼主的方法是错误的.修改CAS不是在APP.config文件. 13楼才是正确的.试了行.
chollima20080808 2013-07-11
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13楼的方法是微软官方发布的方法，但是添加这个之后会导致编译出现问题，我删掉NetFx40_LegacySecurityPolicy节点，编译ok，在添加进去，在编译也ok。但代码一旦修改，必须删掉此节点才能编译通过
程序员一枚 2013-06-17
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13楼正解
a12321321321312321 2012-06-05
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vs2012 用最新版本吧，我用的11.1.8。用老版本的控件在08里面没问题，在10里面就会有问题。
Fs_2011 2012-06-05
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看来这个问题大家都遇到过啊，那有没有解决的啊，2楼13楼的不可以啊
mypurpleing 2012-03-19
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将
<NetFx40_LegacySecurityPolicy enabled="true"/>
作为第一项添加到C:\Program Files (x86)\Microsoft Visual Studio 10.0\Common7\IDE\devenv.exe.config文件中的<runtime>标签下，保存文件。
以实验过，可行。
友情提醒：上述文件目录需根据自己安装文件的位置在相应目录下找到，不是固定的。
hezi168 2012-02-12
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在vs2010中，
根据http://stackoverflow.com/questions/2637089/netfx40-legacysecuritypolicy-in-design-time-mode
可以调试，也可以开始执行（不调试），

但是当发布到iis 后 ，不知如何配置， 报出的错误为：：：（出现此方法显式使用的 CAS 策略已被 .NET Framework 弃用。若要出于兼容性原因而启用 CAS 策略，请使用 NetFx40_LegacySecurityPolicy 配置开关。有关详细信息，请参见 http://go.microsoft.com/fwlink/?LinkID=155570。）


请问如何解决
tobypy 2012-02-08
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vs2010调试是正常的。发布后就出现这个问题了。有人解决吗？
xgcdd 2011-12-31
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http://msdn.microsoft.com/en-us/library/ee191568(VS.100).aspx
xgcdd 2011-12-31
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Copy
<configuration>
<runtime>
<NetFx40_LegacySecurityPolicy enabled="true"/>
</runtime>
</configuration>
ningxikui2 2011-11-30
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我也遇到同样的问题，还有其他解决办法吗？
zhangviv 2011-10-23
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我也遇到同样问题啊，试了上面的两种我都没有解决，有其他解决方法么？
zzl4251 2011-09-27
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二楼的好用,已解决.
fenzhijie 2011-09-20
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哪位兄弟搞定了帮忙贴一下呀，期待解决方案
zhangyf58589 2011-09-11
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2楼的大哥，有解决方案了么？
zhangyf58589 2011-09-11
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我也遇到这个问题，顶一下
GDY__GDY 2011-09-01
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这个我还真忘记了，最后解决了，你先用这个方法看看：在“解决方案”的“工程”上点击鼠标右键，选“属性”，然后选“应用程序”标签，里面有一个叫“目标框架”的选项，然后将其从“.net Framework4 client profile”改为".net Framework 4"，时间长了我忘记是不是这个方法了，如果这个方法不对，以后想起来 一定回来回帖的
tanglei932 2011-08-25
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这个问题很着急啊！有没有已经解决的？给提个解决办法
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此方法显式使用的 CAS 策略已被 .NET Framework 弃用。若要出于兼容性原因而启用 CAS 策略，请使用 NetFx40_LegacySecurityPolicy 配置开关……”的方法
“此方法显式使用的 CAS 策略已被 .NET Framework 弃用。若要出于兼容性原因而启用 CAS 策略，请使用 NetFx40_LegacySecurityPolicy 配置开关。有关详细信息，请参见http://go.microsoft.com/fwlink/?LinkID=155570。”的解决办法。 修改VS2010的配置文件即可。 32位默认路径“C:\P
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此方法显式使用的 CAS 策略已被 .NET Framework 弃用
问题描述： .NET Framework4.0中CAS策略已经被弃用。在将早期的应用程序升级到4.0版本的时候，有时候会出现这个问题。 解决办法: 这时候为了兼容以往的程序，需要我们显示的启动CAS策略，办法是在应用程序中的配置文件中添加 <runtime> <NetFx40_LegacySecurityPolicy ...
“此方法显式使用的 CAS 策略已被 .NET Framework 弃用。若要出于兼容性原因而启用 CAS 策略，请使用 NetFx40_LegacySecurityPolicy 配置开关……”的方法
“此方法显式使用的 CAS 策略已被 .NET Framework 弃用。若要出于兼容性原因而启用 CAS 策略，请使用 NetFx40_LegacySecurityPolicy 配置开关。有关详细信息，请参见 http://go.microsoft.com/fwlink/?LinkID=155570。”的解决办法。 修改VS2010的配置文件即可。 32位默认路径“C:\P
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