C#

this.listView1.AllowDrop = true;<br />
this.listView1.CheckBoxes = true;<br />
this.listView1.LabelWrap = false;<br />
this.listView1.LargeImageList = this.imageList1;<br />
this.listView1.Location = new System.Drawing.Point(24, 24);<br />
this.listView1.Name = "listView1";<br />
this.listView1.Size = new System.Drawing.Size(224, 224);<br />
this.listView1.SmallImageList = this.imageList1;<br />
this.listView1.TabIndex = 2;<br />
this.listView1.View = System.Windows.Forms.View.SmallIcon;<br />
this.listView1.DragDrop += new System.Windows.Forms.DragEventHandler(this.listView1_DragDrop);<br />
this.listView1.DragEnter += new System.Windows.Forms.DragEventHandler(this.listView1_DragEnter);

private void listView1_DragEnter(object sender, System.Windows.Forms.DragEventArgs e)<br />
		{<br />
			if(e.Data.GetDataPresent(DataFormats.FileDrop))<br />
				e.Effect = DragDropEffects.All;<br />
			else<br />
				e.Effect = DragDropEffects.None;<br />
		}<br />
<br />
		private void listView1_DragDrop(object sender, System.Windows.Forms.DragEventArgs e)<br />
		{<br />
			string[] s = (string[]) e.Data.GetData(DataFormats.FileDrop, false);<br />
			for(int i = 0; i < s.Length; i++)<br />
			{<br />
				/* Check that s[i] doesn't exist in listView1 before we add it, <br />
				   to prevent duplicates. */<br />
				if (!m_szFullFilePaths.Contains (s[i]))<br />
				{<br />
					/* s[i] hasn't been added to add to our array of full paths<br />
					   and also the listView1.	 */<br />
					int j = listView1.Items.Count;<br />
					m_szFullFilePaths.Capacity = j+1;<br />
					m_szFullFilePaths.Add (s[i]);<br />
					// We only want to display the file and not the full path:<br />
					Regex reg = new Regex (@"\\");<br />
					string[] p = reg.Split (s[i]);<br />
					listView1.Items.Add(p[p.Length - 1]);<br />
					<br />
					Icon ico = ExtractIcon.GetIcon (s[i],true, false);<br />
					imageList1.Images.Add (ico);<br />
					listView1.Items[j].ImageIndex = j;<br />
				}<br />
			}<br />
		}

private void btnClearLV_Click(object sender, System.EventArgs e)<br />
		{<br />
			// Clear the listView member array, and imageList1.<br />
			listView1.Items.Clear ();<br />
			m_szFullFilePaths.Clear ();<br />
			m_szFullFilePaths.Capacity = 0;<br />
			imageList1.Images.Clear ();<br />
		}

string[] strs = "a d g v g r d".Split(' ');
Array a = strs;

public interface ICustomer
{
   string Name {get;}   
}

public interface IProduct
{
   string Name {get;}
}

public interface IOrder
{
   ICustomer Customer {get;}
   IProduct Product {get;}
   int Quantity {get;}
}