The current state of generics in Delphi   To avoid duplication of generated code, the compiler builders of Embarcadero have done a nice job. They introduced new instrinsics like IsManagedType, GetTypeKind and IsConstantType (see this Stackoverflow an…

将Repeater单页显示的2000条数据一次性提交的时候出现这个错误: Operation is not valid due to the current state of the object. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about…

今天碰到一个特别的异常. Operation is not valid due to the current state of the object. at System.Web.HttpValueCollection.ThrowIfMaxHttpCollectionKeysExceeded() at System.Web.HttpValueCollection.FillFromEncodedBytes(Byte[] bytes, Encoding encoding) at System.Web…

Sharepoint 部署的时候出现一个错误 Error occurred in deployment step 'Add Solution': Operation is not valid due to the current state of the object. 在Server Manager里面看到错误: The Service Control Manager tried to take a corrective action (Restart the service) after t…

今天遇到一个asp.net的草郁闷的问题,看下截图 狂晕啊,在google上狂搜了一下,好在已经有大侠也遇到过这个问题了,先看下别人的解决办法吧 Operation is not valid due to the current state of the object.这种类型的错误有很多,很多都是针对linq的,但是如果是下面的错误类型System.Web.HttpValueCollection.ThrowIfMaxHttpCollectionKeysExceeded() +2692302 不…

安装完xcode6.1后,将其改名为Xcode6.1.app,再移动个位置,启动模拟器,问题来了: Unable to boot device in current state: Creating 解决办法: You will need to delete this device from your simulator and recreate it. From inside the iOS Simulator application menu, choose Hardware > Device…

详细的错误信息如下: Cannot attach medium 'D:\program\VirtualBox\VBoxGuestAdditions.iso' {83b35b10-8fa2-4b81-8187-b2fc212ded22}: medium is already associated with the current state of machine uuid {f36ac97e-4847-4390-89e9-e3296d5ed51d}!.返回 代码: VBOX_E_OBJECT_IN…

debug时弹出提示框:内容有:an operation is not legal in the current state 解决方案: Go to Tools > Options > Debugging > General and turn off the setting for Enable JavaScript Debugging for ASP.NET (Chrome and IE).…

一.问题起因 最近项目中有一页面第一次search后正常,但是再次点击其它任何按钮都会报错,亦即postback后页面有问题,经检查是由于页面有一GridView且数据量极大,记录大概有上千条,这儿解释一下,本页面不允许分页要求所有的记录都要显示已方便使用,另你可能说为啥要用GridView啊?这也不是本文要讨论的问题. 经查,ASP.NET对postback是有限制的,确切地说是对postback后form上fields的集合大小的限制,默认大概1000,而我们这个页面仅仅Input, Sel…

最近接手了一个项目,前端后端都要做,之前一直在做服务端的语言.框架和环境,前端啥都不会啊. 突然需要前端编程,两天速成了JS和VUE框架,可惜还是个半吊子.然后遇到了一个困扰了一整天的问题.一直调试都没办法解决. 最后找到一个极好的解决思路解决了问题.https://blog.csdn.net/guzhao593/article/details/81435342 遇到的问题: 由于vue框架设计出来的APP实际上全部设置在同一个html上,跳转是通过路由实现的, 所以,有的控件并不会在跳转时刷新…