从String转换为自定义对象 [英] Casting from String to custom object

问题描述

假设您有一个简单的类，如下所示:
公共类Person
Public Sub New(以字符串形式的名称)名称为字符串



















("Joe Schmoe"，Person)

Person类只是一个简单的示例，需要CType起作用的真正原因是我正在编写一个自定义列表框，而VS 2005尝试转换字符串

Say you have a simple class somewhat like this:
Public Class Person
    Public Sub New(Name as string)
       me.Name = Name
    End Sub

    Public Name as string
    Public Age as integer
End Class

I want to be able to CType from string to my Person class.
I want this to work: Dim person as person = CType("Joe Schmoe", Person)

The Person class is just a simple example, the real reason I need CType to work is that I'm writing a custom listbox, and VS 2005 tries to cast a string to my custom ListItem class.

推荐答案

您将需要实现类型转换器.在msdn上有一个示例，很好地解释了其工作原理:

You'll need to implement a Type Convertor. There an example on msdn which explains pretty good how it works:

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