protected void PasswordCheckbox_Click(object sender, EventArgs e)
{
bool changePw = FieldScope_Password_CheckBox.Checked;
FieldScope_Password_1.Enabled = changePw;
FieldScope_Password_1.ReadOnly = (!changePw);
FieldScope_Password_1.BackColor = changePw ? Color.White : Color.LightGray;
FieldScope_Password_2.Enabled = changePw;
FieldScope_Password_2.ReadOnly = (!changePw);
FieldScope_Password_2.BackColor = changePw ? Color.White : Color.LightGray;
}