C# - 创建实例

Question

我的问题很简单，但我不知道如何解决。

如果我已经确定了创建了多少无人机，我的代码就可以工作。

INICIO

  public partial class Inicio : Form
{

    private Drone d1,d2;
    private Arena arena;


    public Inicio()
    {
        InitializeComponent();         
    }

    private void btnconetar_Click(object sender, EventArgs e)
    {
        d1 = new Drone("192.168.1.10");
        d2 = new Drone("192.168.1.20");
        arena = new Arena(d1,d2);

        arena.Show();

        this.Hide(); 
    }


}

竞技场：

 public partial class Arena : Form
{
    private Drone d1, d2;

    public Arena(Drone d1,Drone d2)
    {
        InitializeComponent();
        this.d1 = d1;
        this.d2 = d2;


    }

    private void cb_drone_SelectedIndexChanged(object sender, EventArgs e)
    {
        if(cb_drone.SelectedIndex.ToString() == d1.ip_drone)
        {
            //do something
        }
    }
}

我的问题是：如何为 n 架无人机执行此操作？每次我单击一个按钮时，它都会添加一个新的无人机（d3、d4、d5 等...），在 ARENA 上我需要检查哪个组合框选择的项目是该无人机的 ip。

 private Drone d1, d2;

    public Arena(Drone d1,Drone d2)
    {
        InitializeComponent();
        this.d1 = d1;
        this.d2 = d2;


    }

在这部分代码中：例如，如果创建了 10 个 Drone 实例 public Arena(Drone d1,Drone d2,Drone d3,etc...) 我该如何简化它？

编辑：......

     List<Drone> lista_drones = new List<Drone>;
    private Arena arena;


    public Inicio()
    {
        InitializeComponent();         
    }

    private void Inicio_Load(object sender, EventArgs e)
    {

    }

    private void btnconetar_Click(object sender, EventArgs e)
    {
        lista_drones.Add(new Drone("192.168.1.10"));
        lista_drones.Add(new Drone("192.168.1.20"));
        arena = new Arena(lista_drones);

        arena.Show();

        this.Hide(); 
    }


 public partial class Arena : Form
{

    public Arena(List<Drone> lista_drones)
    {
        InitializeComponent();



    }

    private void cb_drone_SelectedIndexChanged(object sender, EventArgs e)
    {
        if(cb_drone.SelectedIndex.ToString() == )
        {
            //do something
        }
    }
}

Answer 1

如果您的无人机数量未知，那么您想使用集合类型而不是不同的字段：

public partial class Inicio : Form
{
    private List<Drone> drones;
    private Arena arena;
    ...

public partial class Arena : Form
{
    private List<Drone> drones;

    public Arena(IEnumerable<Drone> drones)
    {
        InitializeComponent();
        drones = new List<Drone>(drones);
    }
    ...

Answer 2

请在构造函数中使用'params'关键字：


public partial class Arena : Form
{
    private readonly Drone[] d;

    public Arena(params Drone[] d)
    {
        InitializeComponent();
        this.d = d;
    }

    private void cb_drone_SelectedIndexChanged(object sender, EventArgs e)
    {
        foreach (var di in this.d)
        {
            if(cb_drone.SelectedIndex.ToString() == di.ip_drone)
            {
            //do something
            }
        }
    }
}

这样你就可以像这样使用它（当你已经知道它们的数量时）


public partial class Inicio : Form
{

    private Drone d1,d2;
    private Arena arena;


    public Inicio()
    {
        InitializeComponent();         
    }

    private void btnconetar_Click(object sender, EventArgs e)
    {
        d1 = new Drone("192.168.1.10");
        d2 = new Drone("192.168.1.20");
        ....
        dn = new Drone("192.168.1.xx");
        arena = new Arena(d1,d2);

        arena.Show();

        this.Hide(); 
    }
}

或者如果你不知道其中有多少


public partial class Inicio : Form
{

    private List d;
    private Arena arena;


    public Inicio()
    {
        InitializeComponent();         
    }

    private void btnconetar_Click(object sender, EventArgs e)
    {
        d = new List(){ new Drone("192.168.1.10"), /* whatever */ };
        arena = new Arena(d.ToArray());

        arena.Show();

        this.Hide(); 
    }
}

Answer 3

您需要一份无人机列表，因此请使用 List<Drone>。然后将该列表传递给您的 Arena:

public partial class Inicio : Form {

   private List<Drone> drones;
   private Arena arena;


   public Inicio() {
      InitializeComponent();
      this.drones = new List<Drone>();
   }

   private void btnconetar_Click(object sender, EventArgs e) {
      d1 = new Drone( "192.168.1.10" );
      d2 = new Drone( "192.168.1.20" );
      drones.Add( d1 );
      drones.Add( d2 );
      // more drones

      arena = new Arena( drones );

      arena.Show();

      this.Hide();
   }
}

在您的 Arena 中，将组合框的数据源设置为 List<Drone>。更改组合框时，您可以获得 SelectedItem 并且它将选择无人机对象。如果需要，我还会展示如何在代码中获取其他值。您应该不需要循环和搜索所选项目。

public partial class Arena : Form {
   private List<Drone> drones;

   public Arena(List<Drone> drones) {
      InitializeComponent();
      this.drones = drones;

      cb_drone.DataSource = drones;

      // This should be whatever the property name is in your drone class
      cb_drones.ValueMember = "DroneIp"; 

      // THis should be whatever the property name is 
      // in your drone class that you want to display to the user
      cb_drones.DisplayMember = "DroneSomething";

   }
   private void cb_drone_SelectedIndexChanged(object sender, EventArgs e) {

       // will give you the drone object
       var selectedDrone = cb_drone.SelectedItem; 
       // var value = cb_drone.SelectedValue; will give you the Ip (whatever you specified in ValueMember)
       // var selectedDrone =  this.drones.Where(x => x.DroneIp == cb_drone.SelectedValue)

         //do something with selectedDrone or the other things
   }
}

C# - 创建实例

C# - Creating Instances

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