public Form1(){InitializeComponent();}private void 剪切TToolStripMenuItem_Click(object sender, EventArgs e){richTextBox1.Cut();}private void 復(fù)制CToolStripMenuItem_Click(object sender, EventArgs e){richTextBox1.Copy();}private void 粘貼PToolStripMenuItem_Click(object sender, EventArgs e){richTextBox1.Paste();}private void 撤消UToolStripMenuItem_Click(object sender, EventArgs e){richTextBox1.Undo();}private void 重復(fù)RToolStripMenuItem_Click(object sender, EventArgs e){richTextBox1.Redo();}private void 全選AToolStripMenuItem_Click(object sender, EventArgs e){richTextBox1.SelectAll();}private void toolStripStatusLabel2_Click(object sender, EventArgs e){}private void 自動換行ToolStripMenuItem_Click(object sender, EventArgs e){if (richTextBox1.WordWrap){自動換行ToolStripMenuItem.Checked = false;richTextBox1.WordWrap = false;toolStripStatusLabel4.Text = "1";toolStripStatusLabel6.Text = richTextBox1.TextLength.ToString();}else{自動換行ToolStripMenuItem.Checked = true;richTextBox1.WordWrap = true;}}private void richTextBox1_TextChanged(object sender, EventArgs e){toolStripStatusLabel2.Text = richTextBox1.TextLength.ToString();//字符數(shù) toolStripStatusLabel4.Text = richTextBox1.Lines.Length.ToString();//行號 toolStripStatusLabel6.Text = (richTextBox1.SelectionStart - richTextBox1.GetFirstCharIndexOfCurrentLine()).ToString();//焦點所在列數(shù) }private void richTextBox1_Click(object sender, EventArgs e){toolStripStatusLabel6.Text = (richTextBox1.SelectionStart - richTextBox1.GetFirstCharIndexOfCurrentLine()).ToString();//焦點所在列數(shù)int index = richTextBox1.GetFirstCharIndexOfCurrentLine();//GetFirstCharIndexOfCurrentLine()當前行第一個字符的索引//GetLineFromCharIndex(index)指定位置的索引行號toolStripStatusLabel4.Text = (richTextBox1.GetLineFromCharIndex(index) + 1).ToString();//焦點所在行號}

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轉(zhuǎn)載于:https://www.cnblogs.com/maxin991025-/p/6158158.html

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