William Stein <wst...@gmail.com> writes:

> On Mon, Oct 18, 2010 at 2:57 AM, Dr. David Kirkby <david.kir...@onetel.net> 
> wrote:
>
>     On 10/18/10 07:31 AM, Nikos Apostolakis wrote:
>    
>         Dear group,
>        
>         we are creating some worksheets to be used in teaching precalculus, 
> and
>         we wonder if it's possible to have parts of a worksheet "locked", so
>         that the're not easily (read accidentally) editable.  The fear is that
>         students may accidentally, double click on the text and inadvertently
>         delete or corrupt the text while they work through the worksheet.  
> Also
>         is it possible to have some cells "locked?" that is the code should 
> not
>         be easily editable, but stil able to be evaluated?
>
>     I'm not aware of one, but there might be.
>
> Yes, you can do this as follows.
>
> (1) Enter the following in an input cell:
>
> %hideall
> html(r"""
> This is a test.
>
> $$\alpha + \beta$$
>
> """)
>
> (2) Complete refresh the page. 
>
> You should see just the output text, no input box, and the output text cannot 
> be edited
> via double click.  To edit it, one must click the Edit button in the upper 
> right.
>

Thanks this does what I need in terms of "locked" text.  It seems that
there is no way to lock the cells though, right?  I think such a feature
would be useful.  

Thanks again,
Nikos

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