程式視窗1

這是期末考的題目之一(使用Visual Studio):

messagebox.show("有變化嗎");

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string fontName = comboBox1.SelectedItem.ToString();

textBox1.Font = new Font(fontName, 20);

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1.GroupBox + RadioButton + CheckBox

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private void Style_CheckedChanged(object sender, EventArgs e){ }

CheckedChanged 指到 Style_CheckedChanged

三個checkbox的CheckedChanged事件 都填上Style_CheckedChanged)

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FontStyle something = FontStyle.Regular;

something |= FontStyle.Bold;

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textBox1.Font = new Font(

textBox1.Font.FontFamily,

textBox1.Font.Size,

textBox1.Font.Style

);

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改顏色 textBox1.ForeColor = Color.Red;

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改畫面背景this.BackColor = Color.Yellow;

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成品:

namespace WinFormsApp4
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        private void Form1_Load(object sender, EventArgs e)
        {
            textBox1.Text = "早安";
            textBox1.Font = new Font(
    textBox1.Font.FontFamily,
    20,
    textBox1.Font.Style
);
        }

        private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
        {
            MessageBox.Show("有變化嗎");
            string something = comboBox1.SelectedItem.ToString();
            textBox1.Font = new Font(something, 20);

        }

        private void Style_CheckedChanged(object sender, EventArgs e)
        {
            MessageBox.Show("有反應嗎");

            FontStyle something = FontStyle.Regular;

            if (checkBox1Bold.Checked)
                something |= FontStyle.Bold;

            if (checkBox2Italic.Checked)
                something |= FontStyle.Italic;

            if (checkBox3Underline.Checked)
                something |= FontStyle.Underline;

            textBox1.Font = new Font(textBox1.Font.FontFamily, textBox1.Font.Size, something);
        }

        private void colorCheckedChange(object sender, EventArgs e)
        {
            if (radioButton1Red.Checked)
                textBox1.ForeColor = Color.Red;
            else if (radioButton2Yellow.Checked)
                textBox1.ForeColor = Color.Yellow;
            else if (radioButton3Green.Checked)
                textBox1.ForeColor = Color.Green;
        }

        private void backCheckedChange(object sender, EventArgs e)
        {
            

            if (radioButton4Red.Checked)
                this.BackColor=Color.Black;
            else if (radioButton5White.Checked)
                this.BackColor = Color.White;
            else if (radioButton6Blue.Checked)
                this.BackColor = Color.Blue;
        }
    }
}

*我是最前*

*我是最後*