winfrom 用enter建来切换

#region 文本框键按事件 
private void textUserID_KeyDown(object sender, KeyEventArgs e) 
{ 
if (e.KeyCode == System.Windows.Forms.Keys.Enter) 
this.textPassword.Focus(); 
} 


private void textPassword_KeyDown(object sender, KeyEventArgs e) 
{ 
if (e.KeyCode == System.Windows.Forms.Keys.Enter) 
this.butLogin.Focus(); 


} 
#endregion