How to make text in a WinForms TextBox unselectable without disabling it?

问题

Is it possible to make the text in a TextBox unselectable without disabling the TextBox? It's a RichTextBox and I need it's formatting and selection features. I can't disable it because I want to handle MouseMove and MouseDown events.

So far I've thought about disabling the Text box and putting a panel on top of it which will delegate it's events to the textbox handlers, but I can't make the panel transparent so it hides the textbox.

Thanks.

回答1:

What about dealing with the .Enter or .GotFocus events to clear any selection made?
You can see the opposite of what you wanted in Automatically select all text on focus in WinForms TextBox.

回答2:

How about handling selection change event like this:

    private void richTextBox1_SelectionChanged(object sender, EventArgs e)
    {
        this.richTextBox1.SelectionStart = this.richTextBox1.Text.Length;
    }

回答3:

I'm not quite sure what you're getting at (wanting something unselectable but wanting its selection features), but does setting ReadOnly to true accomplish what you're looking for?

来源：https://stackoverflow.com/questions/411143/how-to-make-text-in-a-winforms-textbox-unselectable-without-disabling-it