Hi Laurens,

You could experiment with something like this

ClearAll[check, val]
check[n_] := Between[n, {5, 10}]

val = 6;
{InputField[Dynamic[val, (If[check[#], val = #, val] &)], Number], Dynamic[val]}

If the input value is between 5 and 10 it will be accepted, if not the old value is retained. This works in a notebook, I have not tested it in a CDF.

Hi Laurens,

My mistake, sorry about that. The code to replace larger entries with the max should be

ClearAll[check, val, max]
check[n_] := n <= max
val = 5;
max = 10;
{InputField[Dynamic[val, (If[check[#], val = #, val = max] &)], Number], Dynamic[val]}

Thank you very much, Rohit. I tried your code also in a CDF. It worked nicely. The code returns the previous entry if the next one falls outside the limits. I rebuilt your code for an upper limit as follows:

`ClearAll[check, val, max]
check[n_] := n <= max
val = 5;
max = 10;
{InputField[Dynamic[val, (If[check[#], val = #, val] &)], Number], 
Dynamic[val]}`

Then I tried if it would be possible to get val back to the value of max if this limit is exceeded by replacing the second "val" in the If-statement by "max". So as follows:

ClearAll[check, val, max]
  check[n_] := n <= max
  val = 5;
  max = 10;
  {InputField[Dynamic[val, (If[check[#], val = #, max] &)], Number], 
   Dynamic[val]}`

But this gives the same result as above. So not the value of max. Do you understand why? A further problem in this context concerns the use of Button to change a value in an inputfield. In its most simple way I like to use the following code for this:

ClearAll[val]
val = 5;
{InputField[Dynamic[val], Number], Button[ "-", val--], 
 Button["+", val++], Dynamic[val]}

I tried to use this with an If-statement to stay below a given limit in the following way:

ClearAll[check, val, max]
check[n_] := n <= max
val = 5;
max = 10;
{InputField[Dynamic[val], Number], Button[ "-", val--], 
 Dynamic[Button["+", If[check[#], val = val + 1, val] &]], 
 Dynamic[val]}

But here the + button no longer works.at all. Do you have any suggestion? Thanks in advance, Laurens