选择随机枚举

Question

我已经创建了这样的简单模型：

CheckBoxTreeItem<Object> item = new CheckBoxTreeItem<>(new Hyperlink("abc"));
CheckBoxTreeItem<Object> item2 = new CheckBoxTreeItem<>("Hello World");
CheckBoxTreeItem<Object> item3 = new CheckBoxTreeItem<>("42");
CheckBoxTreeItem<Object> item4 = new CheckBoxTreeItem<>(new Hyperlink("def"));
item.getChildren().setAll(item2, item3, item4);

TreeView<Object> treeView = new TreeView<>(item);
treeView.setCellFactory(tv -> new CheckBoxTreeCell<Object>() {

    private final HBox graphicWrapper = new HBox();

    {
        graphicWrapper.setAlignment(Pos.BASELINE_LEFT);
    }

    @Override
    public void updateItem(Object item, boolean empty) {
        graphicWrapper.getChildren().clear();
        super.updateItem(item, empty);

        if (!empty && (item instanceof Node)) {
            // replace graphic & text
            setText(null);
            graphicWrapper.getChildren().setAll(getGraphic(),  (Node) item);
            setGraphic(graphicWrapper);
        }
    }

});

}

所以我开始在DbContext中映射我的模型。但是现在我想和Bogus和Faker一起播种。 Gendertype是一个Enum，我想在这3个中产生1个。

这是我目前为播种的代码：

using System;
using System.Collections.Generic;

namespace Resa.Models
{
public enum GenderType : byte {
    Unknown = 0,
    Male = 1,
    Female = 2,
    NotApplicable = 9
}

public class Profile
{
    public Int64 Id { get; set; }
    public string FirstName { get; set; }
    public string SurName { get; set; }
    public GenderType Gender { get; set; } // temporary
    public Nullable<DateTime> DayOfBirth { get; set; }
    public bool Verified { get; set; }
    public string Picture { get; set; }
    public DateTime CreatedAt { get; set; }
    public Nullable<DateTime> UpdatedAt { get; set; }
    public Nullable<DateTime> DeletedAt { get; set; }

    public List<Listing> Listings { get; set; }
    public List<Address> Addresses { get; set; }
}

所以问题是：如何在不违反gendertype的情况下选择随机枚举？