本文整理汇总了VB.NET中System.Web.Security.RoleProvider.GetAllRoles方法的典型用法代码示例。如果您正苦于以下问题：VB.NET RoleProvider.GetAllRoles方法的具体用法？VB.NET RoleProvider.GetAllRoles怎么用？VB.NET RoleProvider.GetAllRoles使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。
在下文中一共展示了RoleProvider.GetAllRoles方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的VB.NET代码示例。
示例1: GetAllRoles
Public Overrides Function GetAllRoles() As String()
Dim tmpRoleNames As String = ""
Dim conn As OdbcConnection = New OdbcConnection(connectionString)
Dim cmd As OdbcCommand = New OdbcCommand("SELECT Rolename FROM Roles " & _
" WHERE ApplicationName = ?", conn)
cmd.Parameters.Add("@ApplicationName", OdbcType.VarChar, 255).Value = ApplicationName
Dim reader As OdbcDataReader = Nothing
Try
conn.Open()
reader = cmd.ExecuteReader()
Do While reader.Read()
tmpRoleNames &= reader.GetString(0) & ","
Loop
Catch e As OdbcException
' Handle exception.
Finally
If Not reader Is Nothing Then reader.Close()
conn.Close()
End Try
If tmpRoleNames.Length > 0 Then
' Remove trailing comma.
tmpRoleNames = tmpRoleNames.Substring(0, tmpRoleNames.Length - 1)
Return tmpRoleNames.Split(CChar(","))
End If
Return New String() {}
End Function