application|asp.net|session|對象 Figure 3 CachingThe amount of data you can reach at any level is different, but the right doses are determined on a per-application basis.Also different from layer to layer is the time needed to
原始碼 The following example shows what a simple ADO.NET application that connects to the Northwind database and returns a list of Categories would look like. The example writes the output to the console, or command
asp.net Using Parentheses with Method CallsIn ASP, you could freely call methods on objects without using parentheses, as shown below: Sub WriteData() Response.Write "This is data"End SubWriteDataIn
asp.net AuthorizationOnce your users have been authenticated, you can focus on authorizing what resources you would like them to have access to. The following sample shows access being granted to "jkieley" and "
asp.net <h1>' (single quote)</h1> The single quote character (') introduces a comment line in VB.NET code. It can be used anywhere on a source line. The end of the physical line ends the comment. <h1>Rem</
asp.net ASP.NET中發送Email完整執行個體本文舉例說明在ASP.NET中發送Email的眾多可能性,內容覆蓋了諸如Email格式、優先權、附件及Email編碼等方面。 ASP.NET被賦予了一個發送Email的新對象,名為SmtpMail。使用SmtpMail對象從ASP.NET頁面中發送Email時,可以遵循以下簡單步驟:
asp.net Figure 2.8An attractive error message is displayed if the user enters an invalid directory name.A useful property of the DirectoryInfo class (and the FileInfo class, which we'll examine in the next section,
asp.net Figure 2.6Output of Listing 2.1.8 when viewed through a browser.The code in Listing 2.1.8 begins by creating three ArrayList collections: aTeam1, aTeam2, and aTeam3 (lines 5, 6, and 7, respectively). These three
asp.net Figure 2.7Output of Listing 2.2.1 when viewed through a browser.When working with the various file system classes, it is often handy to import the System.IO namespace to save unneeded typing (line 1).Listing 2.2.1
asp.net|最佳化 Do not rely on exceptions in your code: Exceptions are very expensive and should rarely occur in your code. You should never use exceptions as a way to control normal program flow. If it is possible to detect in