I have a user form in which the user is supposed to insert numbers into two text boxes. It's important that the numbers will follow the following conditions:
1. It must be a number (obviously).
2. The number must be natural (positive and whole).
3. It mustn't be larger than a certain value (in my case, it can't be above 1500. I would like that the code given to me will have that number as an example)
4. One of the lines needs to be a matrix. The maximum limit is 250x250. Maybe there is a special way to insert a matrix that I'm not aware of.
If the conditions are not met, then a message box must appear as a response.
Thanks so much for the help!