ASP'NET Database Connectivity 2 - PowerPoint PPT Presentation

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ASP'NET Database Connectivity 2

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The following web.config will allow error messages to be displayed. ... What is the value for d? 6. ASP.NET Advantages. Simple. Powerful. Rapid prototyping ... – PowerPoint PPT presentation

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Title: ASP'NET Database Connectivity 2


1
ASP.NET Database Connectivity 2
2
Outline
  • ASP.NET Database Connectivity
  • Examples

3
web.config file
  • Stored at your folder on the server
  • It can control error message display
  • The following web.config will allow error
    messages to be displayed.
  • lt!-- Web.Config Configuration File --gt
  • ltconfigurationgt
  • ltsystem.webgt
  • ltcustomErrors mode"Off"/gt
  • lt/system.webgt
  • lt/configurationgt

4
String
  • Concatenation linking something together
  • Example
  • Dim StrOne As String Hello
  • Dim StrTwo As String , world!
  • StrResults StrOne StrTwo
  • StrOne StrOne StrTwo

5
Compound Assignment Operator
  • Compound assignment
  • Example
  • Dim d as String he
  • d llo
  • It is equivalent to
  • d d llo
  • What is the value for d?

6
ASP.NET Advantages
  • Simple
  • Powerful
  • Rapid prototyping
  • Incremental improvement
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