（1）
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 单选按钮和复选框的使用
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void radioButton1_CheckedChanged(object sender, EventArgs e)
{
textBox1.Font = new Font("宋体", textBox1.Font.Size, textBox1.Font.Style);
}
private void radioButton2_CheckedChanged(object sender, EventArgs e)
{
textBox1.Font = new Font("隶书", textBox1.Font.Size, textBox1.Font.Style);
}
private void radioButton3_CheckedChanged(object sender, EventArgs e)
{
textBox1.Font = new Font("楷体", textBox1.Font.Size, textBox1.Font.Style);
}
private void radioButton4_CheckedChanged(object sender, EventArgs e)
{
textBox1.Font = new Font(textBox1.Font.FontFamily,9,textBox1.Font.Style);
}
private void radioButton5_CheckedChanged(object sender, EventArgs e)
{
textBox1.Font = new Font(textBox1.Font.FontFamily, 15.75f, textBox1.Font.Style);
}
private void radioButton6_CheckedChanged(object sender, EventArgs e)
{
textBox1.Font = new Font(textBox1.Font.FontFamily, 26.25f, textBox1.Font.Style);
}
private void changeTextStyle() {
FontStyle fStyle = textBox1.Font.Style;
if (checkBox1.Checked == true && checkBox3.Checked == true && checkBox2.Checked == true)
{
fStyle = (FontStyle)(FontStyle.Bold | FontStyle.Italic | FontStyle.Underline);
}
else if (checkBox1.Checked == true && checkBox2.Checked == true)
{
fStyle = (FontStyle)(FontStyle.Bold | FontStyle.Italic);
}
else if (checkBox1.Checked == true && checkBox3.Checked == true)
{
fStyle = (FontStyle)(FontStyle.Bold | FontStyle.Underline);
}
else if (checkBox2.Checked == true && checkBox3.Checked == true)
{
fStyle = (FontStyle)(FontStyle.Italic | FontStyle.Underline);
}
else if (checkBox1.Checked == true)
{
fStyle = (FontStyle)(FontStyle.Bold);
}
else if (checkBox2.Checked == true)
{
fStyle = (FontStyle)(FontStyle.Italic);
}
else if (checkBox3.Checked == true)
{
fStyle = (FontStyle)(FontStyle.Underline);
}
else
fStyle = FontStyle.Regular;//普通文本
textBox1.Font = new Font(textBox1.Font.FontFamily, textBox1.Font.Size, fStyle);
}
private void checkBox1_CheckedChanged(object sender, EventArgs e)
{
changeTextStyle();
}
private void checkBox2_CheckedChanged(object sender, EventArgs e)
{
changeTextStyle();
}
private void checkBox3_CheckedChanged(object sender, EventArgs e)
{
changeTextStyle();
}
}
}