如何检索给定名称的Enum成员 [英] How to retrieve an Enum member given its name

问题描述

我很容易得到下面的枚举

It's very easy I have the following Enum

Public Enum TCheckStatus
        Checked
        NotChecked
        Indeterminate 
    End Enum

我想在枚举中找到给定名称的索引，最好的方法是什么！！

I want to get the Index of the given name found in the enum, what's the best way?!!

例如:

假设我有"NotChecked"字符串，我希望输出为1

Suppose I have "NotChecked" string , I want the output to be 1

推荐答案

您正在寻找枚举GetNames .它检索指定枚举中常量名称的数组.

You are looking for Enum.GetNames. It retrieves an array of the names of the constants in a specified enumeration.

Dim notCheckedStatus  = DirectCast([Enum].Parse(GetType(TCheckStatus), "NotChecked"), TCheckStatus)
Dim allStatusNames    = [Enum].GetNames(GetType(TCheckStatus))
Dim indexOfNotChecked = Array.IndexOf(AllStatusNames, "NotChecked") '=1'

1. line:将 string 变量解析为枚举值
2. line:将给定枚举类型的所有枚举值返回为 Array
3. line:返回该 Array
中给定枚举值的索引

1. line: parses a string variable to an enum-value
2. line: returns all enum-values of a given enum-type as Array
3. line: returns the index of a given enum-value in that Array

当然要解决您的问题，您只需要这样做:

Of course to solve your question you only need this:

Array.IndexOf([Enum].GetNames(GetType(TCheckStatus)), "NotChecked") 

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