Hiding a column is not working

Suite and Optimus Suite 5
#1

Hiding a column is not working …i used mygrid.setColumnHidden(0,true);… but not working

#2

Do you own a professional version of dhtlmx ? it is available only in “PRO” version.
If you are using a free version try to set the column width to zero and if you want to show the column set it to a positive value, which makes that column to appear again.
Hope this helps!