How Can I Get a Property's Name as a String in C#?

Get attribute name string

In C# 6.0 and above, you can use the nameof expression to conveniently get the property name as a string. This expression resolves to the name of the property at compile time.

Example:

<code class="language-csharp">string propertyName = nameof(SomeClass.SomeProperty);</code>

This expression evaluates to "SomeProperty" at compile time.

Note: nameof can only be used for attributes, not for members of other types.

Early version of C#

In versions prior to C# 6.0, you can use the following method:

<code class="language-csharp">public string GetPropertyName<T>(Expression<Func<T>> propertyLambda)
{
    var memberExpression = propertyLambda.Body as MemberExpression;

    if (memberExpression == null)
        throw new ArgumentException("表达式必须是属性lambda表达式。");

    return memberExpression.Member.Name;
}</code>

This method takes a lambda expression representing a property accessor and returns the name of the property.

Example:

<code class="language-csharp">string propertyName = GetPropertyName(() => SomeClass.SomeProperty);</code>

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