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开源项目 https://github.com/tanveery/recaptcha-net 这个的NuGet下载量最高 https://github.com/PaulMiami/reCAPTCHA asp.net core https://github.com/dotnetvn/GoogleRec 阅读全文
posted @ 2019-05-09 09:56
ChuckLu
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User control's property loses value after a postback All variables (and controls) are disposed at the end of the page's lifecycle. So you need a way t 阅读全文
posted @ 2019-05-08 18:31
ChuckLu
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Single instance of a MemoryCache across multiple application pools on the same server [duplicate] You could create a separate Web Api project and host 阅读全文
posted @ 2019-05-08 17:22
ChuckLu
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Losing session data in ASP.NET By default Response.Redirect terminates thread execution and there might be a race conditions in setting session variab 阅读全文
posted @ 2019-05-08 17:14
ChuckLu
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What is the difference between UserControl, WebControl, RenderedControl and CompositeControl? UserControl: A custom control, ending in .ascx, that is 阅读全文
posted @ 2019-05-08 16:11
ChuckLu
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how to get the next autoincrement value in sql 回答1 To get the next auto-increment value from SQLServer : This will fetch the present auto-increment va 阅读全文
posted @ 2019-05-08 14:57
ChuckLu
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安装界面，点击左上角的log open log file C:\Users\clu\AppData\Local\Temp\{69EEB6B0-A9AD-4BD4-8231-92C992F1FF05}\RedGate.Logfile.txt use verbose logging 应该是会提供更详细的 阅读全文
posted @ 2019-05-08 10:03
ChuckLu
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Which is preferred: Nullable<T>.HasValue or Nullable<T> != null? The compiler replaces null comparisons with a call to HasValue, so there is no real d 阅读全文
posted @ 2019-05-07 18:48
ChuckLu
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遇到这个问题，是因为存储过程的参数，设置默认值写错了。 错误写法 @WhiteIp NVARCHAR(MAX) NULL, Stored procedure with default parameters I wrote with parameters that are predefined The 阅读全文
posted @ 2019-05-07 11:11
ChuckLu
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What size do you use for varchar(MAX) in your parameter declaration? In this case you use -1. See also MSDN docs: msdn.microsoft.com/en-us/library/bb3 阅读全文
posted @ 2019-05-06 17:43
ChuckLu
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