如何在不重写初始公式的情况下强制 VB.NET 刷新变量的初始值答案

【问题标题】：How to force VB.NET to refresh the initial value for a variable without rewriting the initial formula如何在不重写初始公式的情况下强制 VB.NET 刷新变量的初始值
【发布时间】：2023-02-23 16:37:15
【问题描述】：

I want to refresh a variable for example path that I initially declared as Private path As String = My.Computer.Registry.GetValue(keyName, "path", path) but when i change the variable "keyname" the variable path doesn't change, is there a way to refresh it. for an easier example I would say we declared initially: private a as integer= b+c and then we change the value of b or c how do we get the new a value?

I tried making the variable a property but i couldn't understand how to use it well.

标签： vb.net

【解决方案1】：

一种选择是使 keyName 成为一个属性，并在设置器中为路径变量分配一个新值。

Public Property keyName() As String
        Get
            Return _keyName
        End Get
        Set(ByVal value As String)
            _keyName = value
            path = My.Computer.Registry.GetValue(value, "path", path)
        End Set
End Property

【讨论】：

抱歉，我没有提到它，我的键名是两个字符串的串联：userRoot & "" & subkey，如果我要将键名转换为一个属性，我应该把这个串联放在哪里？