本文整理汇总了VB.NET中System.Web.Security.RoleProvider.RemoveUsersFromRoles方法的典型用法代码示例。如果您正苦于以下问题：VB.NET RoleProvider.RemoveUsersFromRoles方法的具体用法？VB.NET RoleProvider.RemoveUsersFromRoles怎么用？VB.NET RoleProvider.RemoveUsersFromRoles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.RemoveUsersFromRoles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: RemoveUsersFromRoles
Public Overrides Sub RemoveUsersFromRoles(ByVal usernames As String(), ByVal rolenames As String())
For Each rolename As String In rolenames
If rolename Is Nothing OrElse rolename = "" Then _
Throw New ProviderException("Role name cannot be empty or null.")
If Not RoleExists(rolename) Then _
Throw New ProviderException("Role name not found.")
Next
For Each username As String In usernames
If username Is Nothing OrElse username = "" Then _
Throw New ProviderException("User name cannot be empty or null.")
For Each rolename As String In rolenames
If Not IsUserInRole(username, rolename) Then
Throw New ProviderException("User is not in role.")
End If
Next
Next
Dim conn As OdbcConnection = New OdbcConnection(connectionString)
Dim cmd As OdbcCommand = New OdbcCommand("DELETE FROM UsersInRoles " & _
" WHERE Username = ? AND Rolename = ? AND ApplicationName = ?", conn)
Dim userParm As OdbcParameter = cmd.Parameters.Add("@Username", OdbcType.VarChar, 255)
Dim roleParm As OdbcParameter = cmd.Parameters.Add("@Rolename", OdbcType.VarChar, 255)
cmd.Parameters.Add("@ApplicationName", OdbcType.VarChar, 255).Value = ApplicationName
Try
conn.Open()
For Each username As String In usernames
For Each rolename As String In rolenames
userParm.Value = username
roleParm.Value = rolename
cmd.ExecuteNonQuery()
Next
Next
Catch e As OdbcException
' Handle exception.
Finally
conn.Close()
End Try
End Sub