PROSAGA码农传奇-无人机蜂群-C＃

0# v-star*위위 | 2019-08-31 10-32

1# 雪浴冰灵 | 2019-08-31 10-32

<div class =“post-text”itemprop =“text”>
  <P>
    你需要有一个无人机列表，所以使用
     <code>
      List<Drone>
    </code>
    。然后将该列表传递给您
     <code>
      Arena
    </code>
    ：
  </p>
   <pre>
    <code>
      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();
   }
}

</code>
  </pre>
  <P>
    在你的
     <code>
      Arena
    </code>
     将组合框的数据源设置为
     <code>
      List<Drone>
    </code>
    。组合框改变后，你可以得到
     <code>
      SelectedItem
    </code>
     它将选择无人机对象。我还将展示如何在需要时获取代码中的其他值。您不应该循环并搜索所选项目。
  </p>
   <pre>
    <code>
      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
   }
}

</code>
  </pre>
</DIV>

2# 烏鴉喝酒 | 2019-08-31 10-32

<div class =“post-text”itemprop =“text”>
  <P>
    请在构造函数中使用'params'关键字：
  </p>
   <pre>
    <code>
      
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
            }
        }
    }
}

</code>
  </pre>
  <P>
    这样你可以像这样使用它（当你已经知道它们的数量时）
  </p>
   <pre>
    <code>
      
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(); 
    }
}

</code>
  </pre>
  <P>
    或者如果你不知道它们中有多少
  </p>
   <pre>
    <code>
      
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(); 
    }
}

</code>
  </pre>
</DIV>

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