Question

我是一个ASP MVC 3 noobie通过音乐商店教程工作，但将所有内容翻译成VB（我在VB商店工作）。

本教程有一行：

public class Album
{
    [Required(ErrorMessage = "An Album Title is required")]
    [StringLength(160)]
    public string   Title      { get; set; }
}

如何将其翻译成VB？显而易见的选择是：

Public Class Album

    <Required(ErrorMessage = "Price is required")> //Compiler says:'ErrorMessage' is not declared. It may be inaccessible due to its protection level.
    <StringLength(160)>
    Property Title As String
    Property Price As Decimal

End Class

但编译器抛出错误（如上所示）。似乎认为错误信息是专辑的属性。

我该怎么做才能解决这个问题？

Answer 1

这应该是：

<Required(ErrorMessage := "Price is required")> _
<StringLength(160)> _

查看VB documentation on attributes了解详情。

Answer 2

Public Class Album
    <Required(ErrorMessage := "An Album Title is required")> _
    <StringLength(160)> _
    Public Property Title() As String
        Get
            Return m_Title
        End Get
        Set
            m_Title = Value
        End Set
    End Property
    Private m_Title As String
End Class

我如何将此C＃属性转换为VB

2 个答案: