richTextBoxFontClass

使用

private void button1_Click(object sender, EventArgs e)
{RichTextBoxCtrl.richTextBoxFontClass r = new RichTextBoxCtrl.richTextBoxFontClass();r.richTextBox = richTextBox1;r.ToggleBold();
}

 

 

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Drawing;////使用
//RichTextBoxCtrl.richTextBoxFontClass r = new RichTextBoxCtrl.richTextBoxFontClass();
//r.richTextBox = richTextBox1;
//r.ToggleBold();namespace RichTextBoxCtrl
{class richTextBoxFontClass{public richTextBoxFontClass(){richTextBox = new RichTextBox();}public RichTextBox richTextBox;//粗体public void ToggleBold(){if (richTextBox.SelectionFont == null)richTextBox.SelectionFont = richTextBox.Font;FontStyle style = richTextBox.SelectionFont.Style;if (richTextBox.SelectionFont.Bold)style &= ~FontStyle.Bold;//恢复正常elsestyle |= FontStyle.Bold;richTextBox.SelectionFont = new Font(richTextBox.SelectionFont, style);}//斜体public void ToggleItalic(){if (richTextBox.SelectionFont == null)richTextBox.SelectionFont = richTextBox.Font;FontStyle style = richTextBox.SelectionFont.Style;if (richTextBox.SelectionFont.Italic)style &= ~FontStyle.Italic;//恢复正常elsestyle |= FontStyle.Italic;richTextBox.SelectionFont = new Font(richTextBox.SelectionFont, style);}//下划线public void ToggleUnderLine(){if (richTextBox.SelectionFont == null)richTextBox.SelectionFont = richTextBox.Font;FontStyle style = richTextBox.SelectionFont.Style;if (richTextBox.SelectionFont.Underline)style &= ~FontStyle.Underline;//恢复正常elsestyle |= FontStyle.Underline;richTextBox.SelectionFont = new Font(richTextBox.SelectionFont, style);}//删除线public void ToggleStrikeout(){if (richTextBox.SelectionFont == null)richTextBox.SelectionFont = richTextBox.Font;FontStyle style = richTextBox.SelectionFont.Style;if (richTextBox.SelectionFont.Strikeout)style &= ~FontStyle.Strikeout;//恢复正常elsestyle |= FontStyle.Strikeout;richTextBox.SelectionFont = new Font(richTextBox.SelectionFont, style);}}
}