对于一些典型的WinForms控件：

For some typical winforms controls:

的http://jquiz.wordpress.com/2007/05/29/c-winforms-readonly-controls /

这也是一个很好的提示保存的外观：

This is also a good tip to preserve the appearance:

    Color clr = textBox1.BackColor;
    textBox1.ReadOnly = true;
    textBox1.BackColor = clr;