C#简单文本编辑器（利用ToolStrip、enu、一个事件多个监听等）

private void SetStyle(object sender,EventArgs e)
{
ToolStripButton btn = sender as ToolStripButton;
FontStyle fontStyleContent = this.rchTxtContent.SelectionFont.Style;
FontStyle BtnFont = ( FontStyle)(Enum.Parse(typeof(FontStyle),btn.Tag.ToString()));
if ((fontStyleContent | BtnFont) == fontStyleContent)
{
fontStyleContent = ~BtnFont & fontStyleContent;
}
else
{
fontStyleContent = fontStyleContent | BtnFont;
}

this.rchTxtContent.SelectionFont = new Font(
this.rchTxtContent.SelectionFont.FontFamily,
this.rchTxtContent.SelectionFont.Size,
fontStyleContent,
this.rchTxtContent.SelectionFont.Unit
);

}
源代码下载地址：http://files.cnblogs.com/beniao/enumExample.rar