Why we don't have access to the columnIndex, for example, baffles
me. I've messed around with the whole process of over-riding
headerRelease and all, but it also would swap out two "rows" when I
tried it, so I gave up and started digging deeper into this simpler
method.
let me know if you figure this thing out.
--- In [email protected], "Scott Romer" <[EMAIL PROTECTED]> wrote:
>
> I'm working on a very similar problem. When I specify the
> sortCompareFunction on a DataGridColumn, it looks like it tries to
> actually execute that function from the SortField. Try tracing
> through and see for yourself...
>
> It looks like it takes the column's datafield and creates a
sortField
> for it. Then sets the sortCompareFunction from the column as the
> compareFunction on the sortField. In which case the SortField's
> compare function should have a signature like this: (per doc)
> <code>
> function myCompare(a:Object, b:Object):int
> </code>
>
> Hence the third parameter (fields) that we both seem to try to use
is
> always null?
>
> There must be a simpler way that we are just not seeing. On a flip
> side, I'm going to try to move towards the example in their
documentation:
>
http://livedocs.macromedia.com/labs/1/flex20beta3/wwhelp/wwhimpl/comm
on/html/wwhelp.htm?context=LiveDocs_Parts&file=00000608.html
>
>
> --- In [email protected], "djbrown_rotonews"
> <djbrown_rotonews@> wrote:
> >
> > It's default is null (obviously). Any idea how I can modify
> > the "call" to sortCompareFunction in the dataGridColumn line to
add
> > this argument to the function call?
> >
> > --- In [email protected], "Doug Lowder" <douglowder@>
> > wrote:
> > >
> > >
> > > The DataGridColumn docs
> > >
> >
<http://livedocs.macromedia.com/labs/1/flex20beta2/langref/mx/control
> > s/d\
> > > ataGridClasses/DataGridColumn.html#sortCompareFunction> say
the
> > > sortCompareFunction gets passed a fields parameter in addition
to
> > the
> > > item objects being compared. Have you checked the fields
> > parameter to
> > > see what's in it?
> > >
> > > Doug
> > >
> > >
> > > --- In [email protected], "djbrown_rotonews"
> > > <djbrown_rotonews@> wrote:
> > > >
> > > > bump. any help?
> > > >
> > > > --- In [email protected], "djbrown_rotonews"
> > > > djbrown_rotonews@ wrote:
> > > > >
> > > > > anyone? I've seen similir questions asked before, and
never
> > saw an
> > > > > answer that directly pertains to the DataGrdColumn issue.
> > > > >
> > > > > --- In [email protected], "djbrown_rotonews"
> > > > > <djbrown_rotonews@> wrote:
> > > > > >
> > > > > > I'm using Flex Beta 2 and wanting to implement a generic
sort
> > > > that
> > > > > > will handle the approximate 20 columns I'm displaying.
> > > > > >
> > > > > > I've got it set up as follows:
> > > > > > <mx:DataGridColumn id="col1" resizable="false"
> > > > > > textAlign="center" fontWeight="bold" headerText="STA"
> > > > > > width="{dgDelays.width/22}" headerWordWrap="on"
> > > > > dataField="acfrmsta"
> > > > > > labelFunction="labelFunction"
> > sortCompareFunction="sortAlpha"/>
> > > > > >
> > > > > > and my sortAlpha takes the form of:
> > > > > > public function sortAlpha(a:Object,b:Object):int {
> > > > > >
> > > > > > var field:String="acfrmsta";
> > > > > > var string1:String = a[field].attribute("dataValue");
> > > > > > var string2:String = b[field].attribute("dataValue");
> > > > > >
> > > > > > if (string1==string2)
> > > > > > return 0;
> > > > > > else if (string1 < string2)
> > > > > > return -1;
> > > > > > else
> > > > > > return 1;
> > > > > > }
> > > > > >
> > > > > > as you can see, I have to hard-code in the value of
arfrmsta
> > in
> > > > > the
> > > > > > sortalpha() method. How can I drill down and get this
value
> > > > > > programatically if I don't have access to something like
> > > > > columnIndex
> > > > > > (which DOES exist apparently in DataGridListData)?
Either
> > that,
> > > > or
> > > > > I
> > > > > > can iterate over the column headers if something like
> > > > > isItemSelected
> > > > > > () existed.
> > > > > >
> > > > >
> > > >
> > >
> >
>
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