Retain the already present value of the cell for edit on click

Question

I've a grid cloumn with xtype:datecolumn as below, Now what happens is when i want to alter the value of the cell , i.e change the time on click the cell becomes blank for editing and on clicking way the previous value comes back, I want the value to be present to edit on click

this is my gridcolumn

{
   text: ' Time',
   dataIndex: 'time',
   xtype: 'datecolumn',
   format: 'Y-m-d H:i:s',
   editor: {
            xtype: 'datefield',
            format: 'Y-m-d H:i:s',
            allowBlank: false,
            maskRe: /[0-9,:,-]/
           }
  },

How will I be achieve this?

To edit the same old value rather than going blank and choosing the new date Thanks

Answer 1

It was the format issue, I fixed it.. I was getting the data from the db with the format m/d/Y H:m:s and the the format in the grid was Y-m-d H:m:s changing the format in the backend fixed the issue.

Thanks @UDID for pointing me to debugging.