C#基础之RichTextBox

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原创最新推荐文章于 2026-08-27 16:53:14 发布 608 阅读 AI 写同款· GEO 优化 ›

C# RichTextBox：从入门到炫技的10个必杀技！本文介绍了C#中RichTextBox控件的实用操作技巧，分为8个核心模块：1)基础文本操作与文件加载/保存；2)关键词查找与选中控制；3)字体/颜色设置与图文混排；4)撤销/重做等高级功能；5)解决自动选词等特殊需求；6)批量操作与异步加载等性能优化；7)实战案例：Markdown编辑器开发；8)MVVM数据绑定进阶应用。重点展示了RTF格式处理、动态格式化、快捷键绑定、性能优化等关键技术，并提供了可复用的代码片段，帮助开发者构建功能丰富的富文本编辑器。阅读详情

效果：

代码：

private void button1_Click(object sender, EventArgs e)
        {
            richTextBox1.SelectionColor = Color.Blue;
        }

        private void button2_Click(object sender, EventArgs e)
        {
            richTextBox1.SelectionColor = Color.Red;
        }

        private void button3_Click(object sender, EventArgs e)
        {
            richTextBox1.SelectionFont = new Font("雅黑", 18);
        }

        private void button4_Click(object sender, EventArgs e)
        {
            richTextBox1.SelectionFont = new Font("隶书", 20);
        }

        private void button5_Click(object sender, EventArgs e)
        {
            richTextBox1.SelectionFont = new Font("楷体", 23);
        }

        private void button6_Click(object sender, EventArgs e)
        {
            richTextBox1.SelectionFont = new Font("黑体", 22);
        }

        private void button7_Click(object sender, EventArgs e)
        {
            richTextBox1.SelectionBullet = true;
        }

        private void button8_Click(object sender, EventArgs e)
        {
            richTextBox1.SelectionBackColor = Color.Gray;
        }

        private void button9_Click(object sender, EventArgs e)
        {
            richTextBox1.SelectionFont = new Font("宋体", richTextBox1.Font.Size);
            richTextBox1.SelectionColor = Color.Black;
            richTextBox1.SelectionBullet = false;
            richTextBox1.SelectionBackColor = Color.White;
        }

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