是否有可能不显示列表中的上一个随机项？ [英] Is it possible to don't display the previous random item from a list?

问题描述

就像问题所说的那样，是否有可能不显示列表中的上一个随机项？基本上我有一个清单：

Like the question says, is it possible to not display the previous random item from a list? basically I have a List:

List<Animal> animals = new List();

具有以下属性< br $> b $ b

That have the following properties

public string Name
{
    get { return _name; }
    set { _name = value; }
}

public string Specie
{
    get { return _specie; }
    set { _specie = value; }
}

我尝试过：



然后将这个对象名或物种随机生成到文本框：

What I have tried:

This object name or specie is then being randomly generated to text boxes:

private string RandomAnimal(Random r)
{
    if (random.Next(2) == 0)
    {
        txtSpecie.Text = randomAnimal.Specie;
        return randomAnimal.Specie;
    }
    else
    {
        txtName.Text = randomAnimal.Name;
        return randomAnimal.Name;
    }
}

假设随机动物名称已显示在文本框中。是否有可能编写一种方法，可能会确保以前在文本框中显示的名称不再显示？



提前谢谢

Lets say that random animal Name has been shown on the textbox. Is it possible to write a method perhaps that will insure that the same name that was previously displayed in textbox will not be displayed anymore?

Thanks in advance

推荐答案

如果我找到了你，那么你需要避免随机选择中的重复。看看我的随机抽取甲板上的5张卡 [ ^ ]。它是 C ++ 代码，但我想你可以很容易地得到这个想法。

If I got you, then you need to avoid replicates in random selections. Have a look at my Random extraction of 5 cards from a deck[^]. It is C++ code, but I guess you could easily get the idea.

简单的解决方案？

复制列表：

Simple solution?
Copy the List:

List<Animal> takeFromHere = new List<Animal>(animals)

并将其用于随机选择。选择项目时，将其从集合中删除。如果该集合现在为空，请重新填充它。

and use that for your random selection. When you select an item, remove it from the collection. If the collection is now empty, re-fill it.

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