using System;
using System.Windows.Forms;
using System.Drawing;
class Lohistamine:Form{
  Label silt1=new Label();
  Label silt2=new Label();
  TextBox tekst1=new TextBox();
  public Lohistamine(){
     silt1.Location=new Point(20, 30);
     silt2.Location=new Point(150, 30);
     tekst1.Location=new Point(80, 60);
     silt1.Text="Vasak";
     silt2.Text="Parem";
     this.Text="Lohista sildi tekst kasti"; //Vormi pealkiri
     Controls.Add(silt1);
     Controls.Add(silt2);
     Controls.Add(tekst1);
     silt1.MouseDown+=nupuvajutus;
     silt2.MouseDown+=nupuvajutus;
     tekst1.DragEnter+=tekst1_DragEnter;
     tekst1.DragDrop+=tekst1_DragDrop;
     tekst1.AllowDrop=true;
  }
  void nupuvajutus(object saatja, EventArgs e){
     if(saatja==silt1){
       silt1.DoDragDrop(silt1.Text, DragDropEffects.Copy);
     }
     if(saatja==silt2){
       silt2.DoDragDrop(silt2.Text, DragDropEffects.Copy);
     }
  }
  
  void tekst1_DragEnter(object saatja, DragEventArgs e){
   if (e.Data.GetDataPresent(DataFormats.Text)) {
      e.Effect = DragDropEffects.Copy;
   } else {
      e.Effect = DragDropEffects.None;
   }
  }
  
  void tekst1_DragDrop(object sender, DragEventArgs e)  {
      tekst1.Text = e.Data.GetData(DataFormats.Text).ToString();
  }

  [STAThread]
  public static void Main(string[] arg){
     Application.Run(new Lohistamine());   
  }
}