I have a `combobox` that contains a list of scalar properties of an `entity`. I need to do a search on the property specified by the user in the `combobox`.

How do I reference the property when I have it as a string?

Something similar to `DBSet<>` for entity.

Example:

```
if (order.Firstname != null && order.Firstname.ToLower().Contains(textBoxSearch.Text.ToLower()))

```

In the above example, I need to replace `Firstname` with `Surname` or any other property, at runtime, depending on what the user selected.