Я хочу сократить код, удалив повторяющийся код в лямбда-выражениях C#

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Hi
I have a load of similar code repeating in my application and I would like to learn how to tidy it up. I know how to do this for String, Labels & Combo boxes but struggling with this section.
I have an observable collection and I am filtering this base on column values.  The column names (CUSTOMER_NAME) and values (selection) are the only variable sections of the code.  I know how to deal with the value because this is just a string but I do not know how to deal with “Silentmachines.CUSTOMER_NAME” &  “Silentmachines.DEALER_NAME”.
Example one
Silentmachines => !string.IsNullOrWhiteSpace(Silentmachines.CUSTOMER_NAME) && Silentmachines.CUSTOMER_NAME == selection)
Example two
Silentmachines => !string.IsNullOrWhiteSpace(Silentmachines.DEALER_NAME) && Silentmachines.DEALER_NAME == selection
Possible code required
public partial class Test_SilentDevices
    {
public string DEALER_NAME { get; set; }
public string CUSTOMER_NAME { get; set; }
}
  public ObservableCollection<Test_SilentDevices> Silentmachines { get; set; }

Is it possible or do I need to leave the current code in place?

Thanks

Phil

Что я уже пробовал:

Я пытался передать его в метод как объект и строку, но они терпят неудачу.

private void filterlist(string column, string selection)
    {
        AddFilterAndRefresh(
                            "label", Silentmachines => !string.IsNullOrWhiteSpace(column) && column == selection);

    }

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            if (label == "Customer Name")
            {
                AddFilterAndRefresh(
                             label, Silentmachines => !string.IsNullOrWhiteSpace(Silentmachines.CUSTOMER_NAME) && Silentmachines.CUSTOMER_NAME == selection);
            }
            if (label == "Dealer Name")
            {
                AddFilterAndRefresh(
                               label, Silentmachines => !string.IsNullOrWhiteSpace(Silentmachines.DEALER_NAME) && Silentmachines.DEALER_NAME == selection);
            }
            if (label == "Postal code")
            {
                AddFilterAndRefresh(
                               label, Silentmachines => !string.IsNullOrWhiteSpace(Silentmachines.POSTAL_CODE) && Silentmachines.POSTAL_CODE == selection);
            }