How Can I Get the Name of a C# Variable or Parameter?

Get variables and parameters in C#

In C#, access to variables or parameters names are very important for various scenarios, such as error processing and dynamic code generation. Let's discuss how to achieve this:

C# 6.0 Solution:

Before C# 6.0, the solution to obtain the name of the member is to use reflection. Considering the following category, it provides a generic method for searching the name of the member:

To use this method, you can pass a lambda expression that reference variables or parameters of this expression:

<code class="language-csharp">public static class MemberInfoGetting
{
    public static string GetMemberName<T>(Expression<Func<T>> memberExpression)
    {
        MemberExpression expressionBody = (MemberExpression)memberExpression.Body;
        return expressionBody.Member.Name;
    }
}</code>

C# 6.0 and higher version solutions:

<code class="language-csharp">string testVariable = "value";
string nameOfTestVariable = MemberInfoGetting.GetMemberName(() => testVariable);</code>

In C# 6.0 and higher versions, The operator provides a more concise and more efficient method of acquiring member names:

This operational symbol can be used for parameters, variables, and attributes: nameof

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