菜鸟求指导 richtextbox自动填值

Question

本帖最后由 gzm998128gzm 于 2013-02-18 17:24:36 编辑

Answer 1

        private void richTextBox1_KeyDown(object sender, KeyEventArgs e)
        {            if (e.KeyCode == Keys.Enter)
            { 
                richTextBox1.Text += "qwer";
                richTextBox1.Select(richTextBox1.TextLength, 0);            }
        }

Answer 2

\r\n是换行        private void richTextBox1_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.KeyCode == Keys.Return)
            {
                richTextBox1.AppendText("\r\naaa");
                e.Handled = true;
            }
        }

Answer 3

我是在第一行末尾打回车的 应该aaa出现在最中间啊  出现在最下面

Answer 4

        private void richTextBox1_KeyUp(object sender, KeyEventArgs e)
        {
            if (e.KeyCode == Keys.Return)
            {
                int index = richTextBox1.GetFirstCharIndexOfCurrentLine();
                int line = richTextBox1.GetLineFromCharIndex(index);
                String[] lines = richTextBox1.Lines;
                lines[line] = "24324234234234";
                richTextBox1.Lines = lines;
            }
        }

Answer 5

光标你可以Set的啊
        private void richTextBoxCh_KeyUp(object sender, KeyEventArgs e)
        {
            if (e.KeyCode == Keys.Return)
            {
                int pos = richTextBoxCh.SelectionStart;
                string str = richTextBoxCh.Text;                string str2 = str.Substring(0, pos) + "test" + str.Substring(pos);                richTextBoxCh.Text = str2;
                richTextBoxCh.SelectionStart = pos ;                e.Handled = true;
            }
        }