1. Grid Control: how disable checkbox(s)?
Phil,
How could I cause checkbox(s) in a grid to become disabled?
Dan Moyer
2. Re: Grid Control: how disable checkbox(s)?
Phil,
Not too clunky, albeit a "disable" would be cleaner. Thanks.
Since I'm trying to let the state of one checkbox in a row determine whether
another checkbox in that row is intended to be able to be checked by the
user, I'll just always replace the "lastchecked" with a "0" in the secondary
checkbox if the "primary" checkbox is itself unchecked (both when the user
checks off the primary, and if the secondary is attempted to be checked).
Only minor problem I see is a graphic one: the simulated disabled checkbox
doesn't indicate that it's disabled by being grayed out, but that's ok for
now.
Dan
----- Original Message -----
From: "Phil Russell" <pg_russell at lineone.net>
To: "EUforum" <EUforum at topica.com>
Sent: Monday, February 17, 2003 2:25 AM
Subject: RE: Grid Control: how disable checkbox(s)?
>
> Dan,
>
> You can set an entire column of checkboxes to be disabled by setting the
> column property of EGW_COL_EDITABLE to False. Disabling individual
> cells is a bit harder as this property is not (yet!) supported for
> individual cells - eventually I intend that you will be able to set most
> column properties for an individual cell but I this is dependent on some
> other changes first.
>
> I have come up with a workaround which is a little clunky but seems to
> work. See below...
>
> Regards,
>
> Phil
>
> Dan Moyer wrote:
> > Phil,
> >
> > How could I cause checkbox(s) in a grid to become disabled?
> >
> > Dan Moyer
> >
>
> Code follows:
>
> -- code generated by Win32Lib IDE v0.14.2
>
> include Win32lib.ew
> without warning
>
>
> ----
> -- Window Window1
> constant Window1 = createEx( Window, "Grid Control with CheckBoxes", 0,
> Default, Default, 600, 300, 0, 0 )
> constant PushButton2 = createEx( PushButton, "Select File", Window1,
> 484,
> 20, 88, 28, 0, 0 )
> constant PushButton3 = createEx( PushButton, "Process Data", Window1,
> 484,
> 72, 88, 28, 0, 0 )
>
>
> ----
> include eugrid.ew
> atom void
>
> integer aGrid, colFileName, colCB1, colCB2, colFileDir
>
> -- Save state of last checkbox clicked
> object last_checkbox_state
>
> -- Create grid, create parms=(parent, x, y, width, height, show_window)
> aGrid = EGW_CreateGrid( Window1, 10, 15, 450, 200, True )
>
> -- no row header
> void = EGW_SetGridProperty( aGrid, EGW_ROW_HEADER_WIDTH, 0)
>
> --***Phil: Make grid look a bit more like a list view
> void = EGW_SetGridProperty( aGrid, EGW_NULL_GRID_COLOR, BrightWhite)
> void = EGW_SetGridProperty( aGrid, EGW_LINE_COLOR, BrightWhite)
> void = EGW_SetGridProperty( aGrid, EGW_CELL_BORDER, False)
>
> -- Filename column
> -- ***Phil: Make this a protected edit field to get highlighting
> --colFileName = EGW_AddColumn( aGrid, "FileName", 200,
> EGW_LAST,EGW_STATIC,1 )
> colFileName = EGW_AddColumn( aGrid, "FileName", 100, EGW_LAST,
> EGW_EDIT,1 )
> --void = EGW_SetColumnProperty(aGrid, colFileName,
> EGW_COL_ALIGN,EGW_CENTER)
> void = EGW_SetColumnProperty(aGrid, colFileName, EGW_COL_EDITABLE,
> False)
> --void = EGW_SetColumnProperty( aGrid, colFileName, EGW_COL_WIDTH, 75 )
>
> -- checkbox columns:
> colCB1 = EGW_AddColumn(aGrid, "Action1 - row 1 disabled", 120, EGW_LAST,
> EGW_CHECKBOX, 2 )
> void = EGW_SetColumnProperty(aGrid, colCB1, EGW_COL_ALIGN, EGW_CENTER)
> colCB2 = EGW_AddColumn(aGrid, "Action2 - all disabled", 120, EGW_LAST,
> EGW_CHECKBOX, 3 )
> void = EGW_SetColumnProperty(aGrid, colCB2, EGW_COL_ALIGN, EGW_CENTER)
> void = EGW_SetColumnProperty(aGrid, colCB2, EGW_COL_EDITABLE, False)
>
> -- file directory column:
> colFileDir = EGW_AddColumn( aGrid, "FileDirectory", 226, EGW_LAST,
> EGW_STATIC, 4 )
> --void = EGW_SetColumnProperty(aGrid, colFileDir,
> EGW_COL_ALIGN,EGW_CENTER)
>
>
> ----
> procedure PushButton2_onClick (integer self, integer event, sequence
> params)--params is ()
> seq fName, dirName, fullPathName, temp
> seq newRow
> int row, posBS -- posBS is position of back-slash in file name
>
<snip>
>
>
