Set Focus to next TextBox on Enter KeyPress in Windows Forms Application

You need to make use of KeyPress event of TextBox.

I have added two TextBox in the form and for TextBox1 i have atteched TextChanged Event.

Please refer this code

C#

private void textBox1_KeyPress(object sender, KeyPressEventArgs e)
{
    if (e.KeyChar == '\r')
    {
        this.textBox2.Focus();
    }
}

 VB

Private Sub textBox1_KeyPress(sender As Object, e As KeyPressEventArgs)
	If e.KeyChar = ControlChars.Cr Then
		Me.textBox2.Focus()
	End If
End Sub