关于多控件调用同一个事件的问题

关于多控件调用同一个事件的问题，看到网上有道题：

如果按照每个控件都单独调用的话，很明显写多很多代码，有什么方法能省去多余的代码都调用同一个方法吗？

普通的单独调用的代码如下，谁看看怎么省去多余的代码

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace 设置文本框字体样式
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void rdoSimSun_CheckedChanged(object sender, EventArgs e)
        {
                txtShow.Font = new Font("宋体", txtShow.Font.Size, txtShow.Font.Style);
        }
        private void rdoLiSu_CheckedChanged(object sender, EventArgs e)
        {
            txtShow.Font = new Font("隶书", txtShow.Font.Size, txtShow.Font.Style);
        }
        private void rdoSimHei_CheckedChanged(object sender, EventArgs e)
        {
            txtShow.Font = new Font("黑体", txtShow.Font.Size, txtShow.Font.Style);
        }
        private void rdoSTCaiyun_CheckedChanged(object sender, EventArgs e)
        {
            txtShow.Font = new Font("华文彩云", txtShow.Font.Size, txtShow.Font.Style);
        }
        //粗体
        private void cbxBold_CheckedChanged(object sender, EventArgs e)
        {
            if (cbxBold.Checked == true)
            {
                txtShow.Font = new Font(txtShow.Font, txtShow.Font.Style | FontStyle.Bold);
            }
            else if (cbxBold.Checked == false)
            {
                txtShow.Font = new Font(txtShow.Font, txtShow.Font.Style ^ FontStyle.Bold);
            }

        }
        //斜体
        private void cbxItalic_CheckedChanged(object sender, EventArgs e)
        {
            if (cbxItalic.Checked == true)
            {
                txtShow.Font = new Font(txtShow.Font, txtShow.Font.Style | FontStyle.Italic);
            }
            else if (cbxItalic.Checked == false)
            {
                txtShow.Font = new Font(txtShow.Font, txtShow.Font.Style ^ FontStyle.Italic);
            }
        }
        //下划线
        private void cbxUnderline_CheckedChanged(object sender, EventArgs e)
        {
            if (cbxUnderline.Checked == true)
            {
                txtShow.Font = new Font(txtShow.Font, txtShow.Font.Style | FontStyle.Underline);
            }
            else if (cbxUnderline.Checked == false)
            {
                txtShow.Font = new Font(txtShow.Font, txtShow.Font.Style ^ FontStyle.Underline);
            }
        }
        //删除线
        private void cbxStrickout_CheckedChanged(object sender, EventArgs e)
        {
            if (cbxStrickout.Checked == true)
            {
                txtShow.Font = new Font(txtShow.Font, txtShow.Font.Style | FontStyle.Strikeout);
            }
            else if (cbxStrickout.Checked == false)
            {
                txtShow.Font = new Font(txtShow.Font, txtShow.Font.Style ^ FontStyle.Strikeout);
            }
        }


        private void rdo9_CheckedChanged(object sender, EventArgs e)
        {
            txtShow.Font = new Font(txtShow.Font.FontFamily,9,txtShow.Font.Style);
        }

        private void rdo10_CheckedChanged(object sender, EventArgs e)
        {
            txtShow.Font = new Font(txtShow.Font.FontFamily, 10, txtShow.Font.Style);
        }

        private void rdo12_CheckedChanged(object sender, EventArgs e)
        {
            txtShow.Font = new Font(txtShow.Font.FontFamily, 12, txtShow.Font.Style);
        }

        private void rdo16_CheckedChanged(object sender, EventArgs e)
        {
            txtShow.Font = new Font(txtShow.Font.FontFamily, 16, txtShow.Font.Style);
        }

        private void rdoRed_CheckedChanged(object sender, EventArgs e)
        {
            txtShow.ForeColor = System.Drawing.Color.Red;
        }

        private void rdoYellow_CheckedChanged(object sender, EventArgs e)
        {
            txtShow.ForeColor = System.Drawing.Color.Yellow;
        }

        private void rdoBlue_CheckedChanged(object sender, EventArgs e)
        {
            txtShow.ForeColor = System.Drawing.Color.Blue;
        }

        //???多选框调用同个方法不行，谁来看下
        public void cbxCheckedChanged()
        {
            //if (cbxBold.Checked == true)
            //{
            //    txtShow.Font = new Font(txtShow.Font, txtShow.Font.Style | FontStyle.Bold);
            //}
            //else if (cbxBold.Checked == false)
            //{
            //    txtShow.Font = new Font(txtShow.Font, txtShow.Font.Style ^ FontStyle.Bold);
            //}
            //if (cbxItalic.Checked == true)
            //{
            //    txtShow.Font = new Font(txtShow.Font, txtShow.Font.Style | FontStyle.Italic);
            //}
            //else if (cbxItalic.Checked == false)
            //{
            //    txtShow.Font = new Font(txtShow.Font, txtShow.Font.Style ^ FontStyle.Italic);
            //}
            //if (cbxUnderline.Checked == true)
            //{
            //    txtShow.Font = new Font(txtShow.Font, txtShow.Font.Style | FontStyle.Underline);
            //}
            //else if (cbxUnderline.Checked == false)
            //{
            //    txtShow.Font = new Font(txtShow.Font, txtShow.Font.Style ^ FontStyle.Underline);
            //}
            //if (cbxStrickout.Checked == true)
            //{
            //    txtShow.Font = new Font(txtShow.Font, txtShow.Font.Style | FontStyle.Strikeout);
            //}
            //else if (cbxStrickout.Checked == false)
            //{
            //    txtShow.Font = new Font(txtShow.Font, txtShow.Font.Style ^ FontStyle.Strikeout);
            //}
        }
    }
}

 附上源代码：

设置文本框字体样式.rar

经好心网友提供意见，写成这样

private void FontFamily_CheckedChanged(object sender, EventArgs e)
{
RadioButton radio = sender as RadioButton;
txtShow.Font = new Font(radio.Text, txtShow.Font.Size, txtShow.Font.Style);
}

然后到前端的字体那四个radiobutton 的属性--事件 里面 把checkedchanged 事件都选择这个方法。

        //字号大小
        private void FontFamily1_CheckedChanged(object sender, EventArgs e)
        {
            RadioButton radio = sender as RadioButton;
            txtShow.Font = new Font(txtShow.Font.FontFamily, Convert.ToInt32(radio.Text), txtShow.Font.Style);
        }
        //颜色
        private void FontFamily2_CheckedChanged(object sender, EventArgs e)
        {
            RadioButton radio = sender as RadioButton;
            if (radio.Text == "红")
            {
                txtShow.ForeColor = System.Drawing.Color.Red;
            }
            else if (radio.Text == "黄")
            {
                txtShow.ForeColor = System.Drawing.Color.Yellow;
            }
            else if (radio.Text == "蓝")
            {
                txtShow.ForeColor = System.Drawing.Color.Blue;
            }
        }

CheckBox的方法：

先在窗体加载的时候这样设置：

        private void Form1_Load(object sender, EventArgs e)
        {
            cbxBold.Tag = (int)FontStyle.Bold;
            //试下cbxItalic.Tag还能指向其他类型不
            //cbxItalic.Tag = Font.Style;
            cbxItalic.Tag = (int)FontStyle.Italic;
            cbxStrickout.Tag = (int)FontStyle.Strikeout;
            cbxUnderline.Tag = (int)FontStyle.Underline;
            //MessageBox.Show(cbxUnderline.Tag.ToString());
        }

然后让所有CheckBox多选框都把CheckedChanged事件指向下面这个方法

　　　　　private void Style_CheckedChanged(object sender, EventArgs e)
        {
            //CheckBox cb = new CheckBox();
            CheckBox cb = sender as CheckBox;
            FontStyle style = (FontStyle)(Convert.ToInt32(cb.Tag));
            //FontStyle style = (FontStyle)4;
            if (cb.Checked)
            {
                txtShow.Font = new Font(txtShow.Font, txtShow.Font.Style | style);
            }
            else
            {
                txtShow.Font = new Font(txtShow.Font, txtShow.Font.Style ^ style);
            }
            //MessageBox.Show(style.ToString()); 
        }

附上最新的源代码：

设置文本框字体样式（修改后）.rar