Question

在C#中怎么同时使富文本框中的字体加粗、倾斜并带下划线

Answer 1

private void button1_Click(object sender, EventArgs e)
{
Font newFont;
newFont = new Font(this.richTextBox1.SelectionFont, this.richTextBox1.SelectionFont.Style | FontStyle.Bold | FontStyle.Underline | FontStyle.Italic );
this.richTextBox1.SelectionFont = newFont;
}