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For Each Loops

The foreach loop works on a collection or an array.

For Each Loops

The foreach loop works on a collection or an array.

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The foreach loop works on a collection or an array.
All of the controls on a form makeup a collection.
The foreach loop can be used to loop through each object in a collection.
Start a new application and place a few controls of various types on the form.
Write the code in Form Load:

private void Form1_Load(object sender, EventArgs e)
{
   // Change the backcolor of each control on the form to red.
   foreach (Control ctrl in this.Controls)
   {
      // ctrl is assigned one control at a time
      ctrl.BackColor = Color.Red;
      //Change text of control
      if (ctrl.GetType() == typeof(Button))
          ctrl.Text = "CLICK HERE!";
      else ctrl.Text = ctrl.GetType().ToString();
   }
}