【发布时间】:2010-12-23 22:51:05
【问题描述】:
谁能提供一个示例代码,展示如何将 app.config 文件与用 VB.NET 编写的应用程序集成。具体来说,我需要从 app.config 文件中提取数据库连接字符串。
【问题讨论】:
标签: vb.net app-config
谁能提供一个示例代码,展示如何将 app.config 文件与用 VB.NET 编写的应用程序集成。具体来说,我需要从 app.config 文件中提取数据库连接字符串。
【问题讨论】:
标签: vb.net app-config
见:
Public Shared Function GetConnectionString(ByVal strConnection As String) As String
'Declare a string to hold the connection string
Dim sReturn As New String("")
'Check to see if they provided a connection string name
If Not String.IsNullOrEmpty(strConnection) Then
'Retrieve the connection string fromt he app.config
sReturn = ConfigurationManager. & _
ConnectionStrings(strConnection).ConnectionString
Else
'Since they didnt provide the name of the connection string
'just grab the default on from app.config
sReturn = ConfigurationManager. & _
ConnectionStrings("YourConnectionString").ConnectionString
End If
'Return the connection string to the calling method
Return sReturn
End Function
【讨论】: