Patrick,

I have added a line to your code. Want to try it ?

>Hi all
>
>Whenever i adding a checkbox to the grid using addobject,
>Why the value in the checkbox cannot be change or i missed out something ?
>
>

>thisform.mygrid1.columncount = -1
>thisform.mygrid1.recordsource = ''
>select fromyr
>With Thisform.mygrid1
>  .RecordSource = 'fromyr'
>  .ColumnCount = 2
>  .column1.controlsource = 'fromyr.chk'
>  .column1.header1.Caption = ''
>  .column1.removeobject('text1')
>  .column1.addobject('check1','checkbox')
>  .column1.check1.caption = ''
   .column1.check1.Visible = .T.
>  .column1.sparse = .F.
>  .column1.readonly = .F.
>  .column2.ControlSource = 'fromyr.kodid'
>  .column2.header1.Caption = 'Course ID'
>  .column2.Width = 120
>  .column2.alignment = 2
>  .column2.readonly = .T.
>endwith
>

>
>Thanks