VB相当于这个C＃的短手片

Question

我想知道是否有一种方法可以在VB中编写以下代码。 （现在等效的VB.NET代码看起来太冗长了）

List<DemoUsers> users = new List<DemoUsers>();
users.Add(new DemoUsers
{
    UserName = "name1",
    UserAddress = "Address1"
});

现在我正在用VB.NET编写

Dim users As New List(Of DemoUsers)

Dim usr1 As New DemoUsers()
usr1.UserName = "name1"
usr1.UserAddress = "Address1"

users.Add(usr1)

VB.NET是否具有等效的C＃简写？这也是C＃中这个简短的方法。

P.S：无法谷歌这个简短的符号可用性，因为我不知道它叫什么。有名称可以称之为吗？

Answer 1

这是object initializer，also exists in VB：

New DemoUsers With { .UserName = "name1", .UserAddress = "Address1" }

请注意，如果您还使用集合初始值，那么您的C＃可能更清晰：

var users = new List<DemoUsers>
{
    new DemoUsers { UserName = "name1", UserAddress = "Address1" }
};

是的，collection initializers exist in VB too。

Answer 2

您可以查看With keyword：

Dim usr1 As New DemoUsers()

With usr1
    .UserName = "name1"
    .UserAddress = "Address1"
End With

您也可以在object initializer：

中使用此功能

Dim usr1 As New DemoUsers With { .UserName = "name1", 
                                 .UserAddress = "Address1" }

Answer 3

Dim users As New List(Of DemoUsers)()
users.Add(New DemoUsers() With { _
    Key .UserName = "name1", _
    Key .UserAddress = "Address1" _
})

我使用了http://www.developerfusion.com/tools/convert/csharp-to-vb/

Answer 4

这是使用名为Object Initializer的功能。

请参阅以下有关object initializers in VB.Net的答案。

Answer 5

它被称为object initializer：

Dim cust1 As New Customer With {.Name = "Toni Poe", 
                                .City = "Louisville"}

Answer 6

它被称为对象初始化语法。

在VB中

Dim usr1 As New DemoUsers() With
{
    .UserName = "name1",
    .UserAddress = "Address1"
}