I would just create a custom item renderer who examines its own data and if it
finds something it doesn't like it draws a red bordering using the drawing API
in updateDisplayList.
--- In flexcoders@yahoogroups.com, nhid <nhi...@...> wrote:
>
> Hi,
>
> I am also working on this problem, does anyone has an idea how to draw the
> red border when validation failed on a field in the datagrid?
>
> Thanks for any help.
> Nhi
>
> On Fri, May 8, 2009 at 2:50 PM, Ravi Suda <sudaraviku...@...> wrote:
>
> >
> >
> > John,
> > I am working on a similar requirement. I want to show the mandatory fields
> > in datagrid as a validation error(red border). Could you provide your custom
> > item renderer that you created.
> >
> > Thanks in Advance
> > Ravi
> >
> >
> > --- In flexcoders@yahoogroups.com <flexcoders%40yahoogroups.com>,
> > "j_lentzz" <jelentz@> wrote:
> > >
> > > True. Good idea. I've already coded the method to increment a
> > > counter to display number of failed items. I'll modify the item
> > > renderer too and see what appears.
> > >
> > > Thanks,
> > >
> > > John
> > > --- In flexcoders@yahoogroups.com <flexcoders%40yahoogroups.com>, "Roman
> > Protsiuk"
> > > <roman.protsiuk@> wrote:
> > > >
> > > > Then all you need is dataProvider. Validate items held in there. And
> > > change
> > > > some property of the item that indicates whether it's valid or not.
> > Then
> > > > item renderer easily can draw something bad basing on that info.
> > > >
> > > > R.
> > > >
> > > > On 9/19/07, j_lentzz <jelentz@> wrote:
> > > > >
> > > > > I'm doing something like that right now for the individual cells.
> > > > > I've integrated a validator into the cell object. However, I need to
> > > > > be able to validate the complete datagrid when the save button is
> > > > > pressed. If the user never moves to a cell, I can't use the
> > > > > itemEditEnd to validate, I need to move through the data and check.
> > > > > Using the itemEditor.newInstance() and calling my validation routine,
> > > > > I can detect that a validation fails. Now I'm going to try to use the
> > > > > itemRenderer property to indicate the nice red boxes.
> > > > >
> > > > > John
> > > > > --- In flexcoders@yahoogroups.com
> > > > > <flexcoders%40yahoogroups.com><flexcoders%
> > 40yahoogroups.com>,
> > > "Roman
> > > > > Protsiuk"
> > > > > <roman.protsiuk@> wrote:
> > > > > >
> > > > > > I remember I did it like this:
> > > > > >
> > > > > > public class FilesDataGridColumnEditor extends TextInput {
> > > > > >
> > > > > > public function SomeDataGridEditor() {
> > > > > > _validator.source = this;
> > > > > > _validator.triggerEvent = "change";
> > > > > > _validator.required = true;
> > > > > > _validator.property = "text";
> > > > > > }
> > > > > >
> > > > > > private var _validator : Validator = new SomeValidator();
> > > > > > }
> > > > > >
> > > > > > It's not "the best practices", but as far as I remember it
> > > worked. :)
> > > > > >
> > > > > > R.
> > > > > >
> > > > > > On 9/18/07, merelypixels <merelypixels@> wrote:
> > > > > > >
> > > > > > > seems to me that no mucking about with itemEditors is
> > necessary...
> > > > > > > extract the data you need from your dataProvider and then
> > validate
> > > > > > > that data directly before sending it on. If you want the
> > > little red
> > > > > > > validation things, you should probably validate on a field by
> > > field
> > > > > > > basis using the dataGrids itemEditEnd event, validating using
> > > > > > > dg.itemEditorInstance and doing e.preventDefault() if the field
> > is
> > > > > > > invalid.
> > > > > > >
> > > > > > > Hope that helps!
> > > > > > > -Pixels
> > > > > > >
> > > > > > > --- In flexcoders@yahoogroups.com <flexcoders%40yahoogroups.com>
> > > <flexcoders%40yahoogroups.com><flexcoders%40yahoogroups.com>,
> > > > >
> > > > > > > "j_lentzz" <jelentz@> wrote:
> > > > > > > >
> > > > > > > > Hi,
> > > > > > > >
> > > > > > > > I'm now trying to validating the contents of a datagrid and
> > > I was
> > > > > > > > wondering if there is an established way to do this. It
> > > seems like I
> > > > > > > > would need to get an instance of the itemEditor and somehow
> > > pass it
> > > > > > > > the value on that row. Then I would either call a validator
> > > against
> > > > > > > > that editor, or call a method contained in the itemEditor to
> > > do the
> > > > > > > > validation. I can get the itemEditor to do validation when
> > > the user
> > > > > > > > is entering data, but I need to be able to do validation on
> > > all the
> > > > > > > > entries in the datagrid when the save button is pressed - to
> > > handle
> > > > > > > > the cases of missing data in required datagrid fields. I've
> > > found
> > > > > > > > some examples of how to validate when the user is entering
> > > data for
> > > > > > > > that field, but not for validating the complete datagrid. Any
> > > > > help or
> > > > > > > > ideas would be greatly appreciated.
> > > > > > > >
> > > > > > > > John
> > > > > > > >
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > >
> > > > >
> > > > >
> > > > >
> > > >
> > >
> >
> >
> >
>
