我有一个问题,一直唠叨我有一段时间了,我无法找到答案。
I have a problem that has been nagging me for some time now and I can't find the answer.
我需要获得一个在一个lambda防爆pression被引用的属性的名称。我将提供拉姆达EX pression到这将返回一个字符串的方法。举例来说,如果我有:
I need to obtain the name of the property that is being referenced in a Lambda Expression. I would provide the lambda expression to a method that would return a string. For example if I have:
x => x.WeirdPropertyName
那么该方法将返回:
then the method would return:
"WeirdPropertyName"
我已阅读,它可以与前pression树木来完成,但得到的答复一直躲避我。
I have read that it can be done with expression trees, but the answer has eluded me.
感谢您的帮助
在这里你去:
string GetPropertyName<T>(Expression<Func<T>> property)
{
var propertyInfo = (property.Body as MemberExpression).Member as PropertyInfo;
if (propertyInfo == null)
{
throw new ArgumentException("The lambda expression 'property' should point to a valid Property");
}
return propertyInfo.Name;
}