private void IP1_KeyDown_1(object sender, KeyEventArgs e)
{
if (e.Key == Key.Enter)
{
IP2.Focus();
}
}
private void IP1_TextChanged(object sender, EventArgs e)
{
//Get text from textbox
string text = ((TextBox)sender).Text;
//Do what ever it is you want to do to edit the text
if (text.Length == 3)
{
IP2.Focus();
}
}