winform记事本初步实现
public Form1()
{
InitializeComponent();
}
private void 剪切TToolStripMenuItem_Click(object sender, EventArgs e)
{
richTextBox1.Cut();
}
private void 复制CToolStripMenuItem_Click(object sender, EventArgs e)
{
richTextBox1.Copy();
}
private void 粘贴PToolStripMenuItem_Click(object sender, EventArgs e)
{
richTextBox1.Paste();
}
private void 撤消UToolStripMenuItem_Click(object sender, EventArgs e)
{
richTextBox1.Undo();
}
private void 重复RToolStripMenuItem_Click(object sender, EventArgs e)
{
richTextBox1.Redo();
}
private void 全选AToolStripMenuItem_Click(object sender, EventArgs e)
{
richTextBox1.SelectAll();
}
private void toolStripStatusLabel2_Click(object sender, EventArgs e)
{
}
private void 自动换行ToolStripMenuItem_Click(object sender, EventArgs e)
{
if (richTextBox1.WordWrap)
{
自动换行ToolStripMenuItem.Checked = false;
richTextBox1.WordWrap = false;
toolStripStatusLabel4.Text = "1";
toolStripStatusLabel6.Text = richTextBox1.TextLength.ToString();
}
else
{
自动换行ToolStripMenuItem.Checked = true;
richTextBox1.WordWrap = true;
}
}
private void richTextBox1_TextChanged(object sender, EventArgs e)
{
toolStripStatusLabel2.Text = richTextBox1.TextLength.ToString();//字符数
toolStripStatusLabel4.Text = richTextBox1.Lines.Length.ToString();//行号
toolStripStatusLabel6.Text = (richTextBox1.SelectionStart - richTextBox1.GetFirstCharIndexOfCurrentLine()).ToString();//焦点所在列数
}
private void richTextBox1_Click(object sender, EventArgs e)
{
toolStripStatusLabel6.Text = (richTextBox1.SelectionStart - richTextBox1.GetFirstCharIndexOfCurrentLine()).ToString();//焦点所在列数
int index = richTextBox1.GetFirstCharIndexOfCurrentLine();//GetFirstCharIndexOfCurrentLine()当前行第一个字符的索引
//GetLineFromCharIndex(index)指定位置的索引行号
toolStripStatusLabel4.Text = (richTextBox1.GetLineFromCharIndex(index) + 1).ToString();//焦点所在行号
}
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