UI 界面 控件遍历访问

 foreach (Control ctl in this.groupBox1.Controls)
            {
                if (ctl is ComboBox)
                {
                    ((ComboBox)ctl).SelectedIndexChanged += new EventHandler(ComBoxSelectedIndexChanged);
                }
                if (ctl is CheckBox)
                {
                    ((CheckBox)ctl).CheckedChanged += new EventHandler(CheckChanged);
                }
            }

public void ComBoxSelectedIndexChanged(object sender, EventArgs e)
{
    ComboBox cmb = ((ComboBox)sender);
    //
}


  //组合凭证查询
        public Control FindControlName(string StrName)
        {
            foreach (Control ctl in this.groupBox1.Controls)
            {
                if (ctl.Name != null && ctl.Name.ToString() == StrName)
                {
                    return ctl;
                }
            }
            return null;
        }

    /**//// <summary>
        /// Get Control 
        /// </summary>
        /// <param name="Tag">Control Tag</param>
        /// <returns>Control</returns>
        public Control FindControl(string Tag)
        {
            foreach (Control ctl in this.groupBox1.Controls)
            {
                if (ctl.Tag != null && ctl.Tag.ToString() == Tag)
                {
                    return ctl;
                }
            }
            return null;
        }

 //收费标志
            CheckBox cbox = null;
            //授权标志
            CheckBox cbox1 = null;
            帐户类型#region 帐户类型
            //查找收费标志
            cbox = FindControl("ChargeRequired") as CheckBox;
            //查找授权标志
            cbox1 = FindControl("AuthorizationFlag") as CheckBox;