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Date: Thu, 12 Jul 2007 13:40:39 -0600
From: "Eddie O'Neil" <ekoneil@gmail.com>
To: "Beehive Users" <user@beehive.apache.org>
Subject: Re: Data Grid with null rows
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 <CD9EB5274F79424B93A8B29F0B951F9307108D09@CHAPDMSXMB03.ad.tiaa-cref.org>
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References: <1BA9B44399604F4C983B85483E1F92E54B058C@repbex02.amer.bea.com>
	 <CD9EB5274F79424B93A8B29F0B951F9307108D09@CHAPDMSXMB03.ad.tiaa-cref.org>

Ben--

  Today, there's not a way to suppress null items in a data set as
there is with the Repeater.  This is definitely an oversight;
ignoreNulls should be part of the data grid.

  Obviously, I don't know the structure of your application, but it
might be possible to wrap the ArrayList in a List facade that just
ignores null items.

  Please add an enhancement request to support some kind of null
supression.  Thanks.

Cheers,
Eddie


On 7/12/07, Burgess, Benjamin <BBurgess@tiaa-cref.org> wrote:
> Thanks for the link.  This will help make the null looks prettier when
> printed, but it wont prevent their iteration.
>
> What I am really looking for is an "ignoreNulls=true" like there is on
> the netui-data:repeater tag.  Unfortunately, it does not exist for the
> datagrid tag.
>
> I looked at the code, and it would take a little bit of refactoring of
> some of the classes which use code like the following:
>
>                     int index = dataGridModel.getCurrentIndex();
>                     if(index % 2 == 0)
>                         trState.styleClass = styleModel.getRowClass();
>                     else trState.styleClass =
> styleModel.getAltRowClass();
>
> This is because, if a NULL element is ignored, the index would still be
> incremented, but the odd/even row rendering should keep track of which
> style to use next.  Basically, the logic of keeping track of odd/even
> style class needs to be separated from the actual index into the
> datasource.
>
> Ben
>
> -----Original Message-----
> From: Scott Hammer [mailto:shammer@bea.com]
> Sent: Wednesday, July 11, 2007 2:30 PM
> To: Burgess, Benjamin; Beehive Users
> Subject: RE: Data Grid with null rows
>
> Ben,
>
> If you are using BEA WebLogic, the weblogic.xml deployment descriptor
> has a setting to print null as the empty string.  Look for "print-nulls"
> under the following URL:
>
> http://e-docs.bea.com/wls/docs100/webapp/weblogic_xml.html#wp1038491
>
> If not using WebLogic, you will likely need add logic to check for null.
>
> HTH,
> Scott
>
> -----Original Message-----
> From: Burgess, Benjamin [mailto:BBurgess@tiaa-cref.org]
> Sent: Wednesday, July 11, 2007 11:47 AM
> To: user@beehive.apache.org
> Subject: Data Grid with null rows
>
> I am using a netui-data:dataGrid tag to iterate over an ArrayList object
> which has some null elements in it.  This results in some of the rows
> printing "null" to the screen in its columns.  Is there a way to tell
> the dataGrid to ignore null elements when iterating?  I could use the
> renderRows="false" on the "rows" tag, and then put an if around a "row"
> tag inside, but this makes the odd even row counter get messed up.  Is
> there some other way?  Maybe filters?
>
>
>
> Ben
>
>
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