How to set class attributes in vb.net?

Python has a setattr to set public attributes for any class on the fly.

So, how to do t开发者_运维百科hat with VB.net ?

I mean :

Public Class abc
  ...
End Class

' Set it as :
abc.setattr("prop", 5)

' Use it as :
Dim ob As New abc
value = abc.prop

Is that possible with VB.net - If yes, Please explain how ?

---

There is no such feature in VB.NET. You have to define Properties manually.

For instance - Anonymous types.

Dim obj = New With {.No = 10, .Name = ""}
obj.Name = "Mr.X"

Or

Named types

 Public Class Abc
     Public Property No As Integer
     Public Property Name As String
 End Class 

---

You can do this by using the DLR and Dynamic objects like AVD showed.

However something like impromptu-interface will make this eassier for you. Here is a blog about it.

Dim c As Object = Builder.[New]()
Dim abc = c.abc(New With {.prop = 5})

or

Dim c As Object = Builder.[New]()
Dim abc = c.abc
abc.("prop") = 5

Which is close to what you desired.