Ivar Jacobson:任何系統在其生命週期都會變化,如果我們期望我們開發的系統不會在第1版後就被拋棄,就必須牢記這一點.Open-Closed Principle1.Open(Open for extension)模組的行為必須是開放的,支援擴充的,而不是僵化的.2.Closed(Closed for modification)對模組進行擴充時,不應該影響或大規模影響已有模組的其他部分.class Cllient{ Server server; void GetMessage()
When you write SQL Scripts or Stored Procedures. Please keep in mind that don't change the schema of table with update data for the table together. Problem repro steps:1: prepare following scripts: CodeCode highlighting produced by Actipro
We all know the WSS 3.0 fully support the webpart whether derived from WSS WebPart class or ASP.NET 2.0 WebPart class. So, the question is when we need to use the WSS WebPart class as parent class.The WSS WebPart class provide exclusively
.text includes these components and contrlsMetaBuilders.WebControls.DefaultButtons.dllMetaBuilders.WebControls.ExpandingPanel.dllMetaBuilders. .....you can find these contrls on this
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