Data validation issue - typing text in an integer column

[romicolman]

Problem description

When I type text on a numeric cell (integer) content typed disappears, and ODE shows NaN within the cell.

If you then click SAVE, content in the cell is removed:

Steps to reproduce it

• Open the ODE.
• Upload a tabular file.
• Add text in a numeric column

This issue is related to #340

Suggested solution

• Allow the user to type data against rules but re-run validation process to inform new errors to users.

• Remove the NaN acronym.

csv used to detect this issue