Deleting dynamically added labels

Question

hello everyone..

 

i have created a windows form app using visual c#.

 in this i have added 10 labels on my form on a button click event.

now on clicking second button, i want 5 out of 10 lables deleted or disappears.

here is my code for making labels.

 

 private void button1_Click(object sender, EventArgs e)

{ 

for (int f = 0;  f < l10;  f++)

  {

Color randomcolor = Color.FromArgb(rnd.Next(256), rnd.Next(256), rnd.Next(256));

lbl1 = new Label();  // lbl1 is a object of label class declared outside

lbl1.Text = " ";

lbl1.BackColor = randomcolor;

lbl1.Location = new Point(li[f], 20);

lbl1.Size = new Size(40, 20);

this.Controls.Add(lbl1);

   }

 }

 

now how shoud i code in button2 click event..

private void button2_Click(object sender, EventArgs e) 

{

     ???????????????????????????????????

} 

 

PLEASE HELP..!!