How to use ‘foreach’ in IEnumerator?

Question

Hello friend,

    

Questions are as follows: 

 

private void button1_Click(object sender, EventArgs e){

List<int> list = new List<int>();

for (int i = 1; i <= 10; i++) list.Add(i);

IEnumerable<int> enumer = list;

foreach (int item in enumer)

{

  textBox1.Text += item.ToString() + "|";

}

IEnumerator<int> enumer2 = list.GetEnumerator();

while (enumer2.MoveNext())

{

  textBox2.Text += enumer2.Current.ToString() + "|";

}

IEnumerator<int> enumer3 = list.GetEnumerator();

foreach (int item in enumer3)     // Try use foreach,but compilation errors in here.

{

  textBox3.Text += item.ToString() + "|";

}

}

 

Thanks.