TextBox问题
如何实现删除TextBox中指定行数的文本?
程序代码:
int start = textBox1.SelectionStart; int end = textBox1.SelectionLength; string txt = textBox1.Text; textBox1.Text = txt.Substring(0, start) + txt.Substring(start + end, txt.Length - start - end); textBox1.Focus();
删除选中的文本