In extjs I have a GridPanel.
I want to hide some of the columns of this gridpanel, I am using  Hidden="true" for this and it is working fine.
The problem is, when I click on the Grid menu, there is an option called 'Columns'. When you mouseover 'Columns' you can check/uncheck the columns you want to show/hide.
I want to display the hidden columns in this list(unchecked) so that user can check them and manually display it on the grid.
I tried setting  Hideable="true" but still these columns are not displying in the 'Columns' list.
Please suggest a solution
 
                        
The configuration option is
hidden:true(lowercase), for example:In this case, column
Last Updatedis initially hidden, but still appears in the column menu. If you still have troubles, make a showcase at https://fiddle.sencha.com