ChuckLu - 博客园

2019年5月7日

摘要： 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 阅读(651) 评论(0) 推荐(0) 编辑

Procedure or function 'pu_usr_User' expects parameter '@WhiteIp', which was not supplied.

摘要：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 阅读(538) 评论(0) 推荐(0) 编辑

2019年5月6日

What size do you use for varchar(MAX) in your parameter declaration?

摘要： 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 阅读(369) 评论(0) 推荐(0) 编辑

2019年4月30日

GEEK UNINSTALLER

摘要： geek.exe https://geekuninstaller.com/download Event log message indicates that the Windows Installer reconfigured all installed applications Product: 阅读全文

posted @ 2019-04-30 19:34 ChuckLu 阅读(715) 评论(0) 推荐(0) 编辑

2019年4月28日

EvansClassification

摘要： EvansClassification In his excellent book Domain Driven Design, Eric Evans creates a classification of the different kinds of domain objects that you' 阅读全文

posted @ 2019-04-28 16:21 ChuckLu 阅读(210) 评论(0) 推荐(0) 编辑

Catalog of Patterns of Enterprise Application Architecture

摘要： Catalog of Patterns of Enterprise Application Architecture Last Significant Update: January 2003 A short summary of the patterns in Patterns of Enterp 阅读全文

posted @ 2019-04-28 15:58 ChuckLu 阅读(220) 评论(0) 推荐(0) 编辑

ValueObject

摘要： ValueObject When programming, I often find it's useful to represent things as a compound混合物. A 2D coordinate consists of an x value and y value. An am 阅读全文

posted @ 2019-04-28 15:56 ChuckLu 阅读(471) 评论(0) 推荐(0) 编辑

Data Transfer Object

摘要： What is Data Transfer Object? A Data Transfer Object is an object that is used to encapsulate data, and send it from one subsystem of an application t 阅读全文

posted @ 2019-04-28 15:49 ChuckLu 阅读(478) 评论(0) 推荐(0) 编辑

ASP.NET - Validators

摘要： ASP.NET validation controls validate the user input data to ensure that useless, unauthenticated, or contradictory data don't get stored. ASP.NET prov 阅读全文

posted @ 2019-04-28 15:13 ChuckLu 阅读(246) 评论(0) 推荐(0) 编辑

2019年4月26日

正则匹配IP

摘要： https://www.cnblogs.com/leezhxing/p/4333769.html https://devblogs.microsoft.com/oldnewthing/?p=31113 Aha, but you see, all this time diving into regul 阅读全文

posted @ 2019-04-26 18:12 ChuckLu 阅读(1213) 评论(0) 推荐(0) 编辑

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