给定属性名称是动态的，如何使用linq将动态对象列表分组？

Question

I am trying to group the results from a dynamic object list. I tried the following code

    var results = ((IEnumerable)data).Cast<dynamic>().Where(x => x.dynamicProperyname));

The property name itself is also dynamic and hence i cannot use it in my query as shown above. Any suggestions on how to fix this?

Answer 1

This should do the trick -

var propertyName = "dynamicProperyname";
var results = ((IEnumerable)data).Cast<dynamic>()
              .Where(x => x.GetType().GetProperty(propertyName)?.GetValue(x, null) ?? false);

Above code use reflection to get value of property.