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Posted to users@myfaces.apache.org by John Mani <jm...@comverge.com> on 2006/06/08 00:48:56 UTC
Weird problem with dataTable, commandButtons, inputText
Hi
I am seeing a weird problem:
I have a page that has a toplevel panelGrid with 2 columns.
In the left column, I have a panelGroup containing a bunch of textfields for text entry and
then a commandButton with an associated action
In the right column, I have a dataTable and a bunch of inputTexts below the dataTable.
The action for the commandButton in the left panel is called "backer.search" and
invokes the search method in the backer bean. I'm logging a message in that
search() method, plus this method does a search and sets up the entries to be displayed
in the dataTable in the right column.
Now, the inputTexts in the right column have values that go like "backer.selection.firstName"
and so on ... where backer.getSelection() returns a Customer object that has a getFirstName()
method.
The weird behaviour is that: if the above inputTexts have values like above : i.e., "backer.selection.firstName"
etc. the commandButton doesn't seem to fire the search() method - the log message doesn't get
printed and the dataTable is not filled up. However, if the inputTexts have values like
"backer.firstName" (where backer.getFirstName() is a method that returns a simple string), the
commandButton does fire the search() method.
I'm at a loss - as these two seem completely independent.
Sorry for the long and rambling mail, but any clues?
-john
Re: Weird problem with dataTable, commandButtons, inputText
Posted by Jeff Bischoff <jb...@klkurz.com>.
Okay, so I'm not the only one experiencing this. Perhaps it is worth a
look at the myfaces source, to see why there is no error message logged
when this happens.
John Mani wrote:
> Yup, that was it. The lack of any sort of error message didn't help either.
> -john
>
> ________________________________
>
> From: Jeff Bischoff [mailto:jbischoff@klkurz.com]
> Sent: Fri 6/9/2006 2:09 PM
> To: MyFaces Discussion
> Subject: Re: Weird problem with dataTable, commandButtons, inputText
>
>
>
> John,
>
> I might have a clue for you...
>
> When the page is initially displayed, is "selection" equal to null? i.e.
> #{backer.selection} would return null. If so then,
> #{backer.selection.firstName} will result in a null pointer exception,
> which in my experience with myfaces, does not display any kind of error
> message but simply causes "weird" behaviour - like buttons not working.
>
> We discussed this a few days ago on [1]
>
> [1] http://www.mail-archive.com/users@myfaces.apache.org/msg22905.html
>
> Regards,
>
> Jeff Bischoff
> Kenneth L Kurz & Assoc, Inc.
>
> John Mani wrote:
>
>>Hi
>>
>>I am seeing a weird problem:
>>I have a page that has a toplevel panelGrid with 2 columns.
>> In the left column, I have a panelGroup containing a bunch of
>>textfields for text entry and
>>then a commandButton with an associated action
>> In the right column, I have a dataTable and a bunch of inputTexts
>>below the dataTable.
>>
>>The action for the commandButton in the left panel is called
>>"backer.search" and
>>invokes the search method in the backer bean. I'm logging a message in that
>>search() method, plus this method does a search and sets up the entries
>>to be displayed
>>in the dataTable in the right column.
>>
>>Now, the inputTexts in the right column have values that go like
>>"backer.selection.firstName"
>>and so on ... where backer.getSelection() returns a Customer object that
>>has a getFirstName()
>>method.
>>
>>The weird behaviour is that: if the above inputTexts have values like
>>above : i.e., "backer.selection.firstName"
>>etc. the commandButton doesn't seem to fire the search() method - the
>>log message doesn't get
>>printed and the dataTable is not filled up. However, if the inputTexts
>>have values like
>>"backer.firstName" (where backer.getFirstName() is a method that returns
>>a simple string), the
>>commandButton does fire the search() method.
>>
>>I'm at a loss - as these two seem completely independent.
>>
>>Sorry for the long and rambling mail, but any clues?
>>
>>-john
>>
>
>
>
>
>
RE: Weird problem with dataTable, commandButtons, inputText
Posted by John Mani <jm...@comverge.com>.
Yup, that was it. The lack of any sort of error message didn't help either.
-john
________________________________
From: Jeff Bischoff [mailto:jbischoff@klkurz.com]
Sent: Fri 6/9/2006 2:09 PM
To: MyFaces Discussion
Subject: Re: Weird problem with dataTable, commandButtons, inputText
John,
I might have a clue for you...
When the page is initially displayed, is "selection" equal to null? i.e.
#{backer.selection} would return null. If so then,
#{backer.selection.firstName} will result in a null pointer exception,
which in my experience with myfaces, does not display any kind of error
message but simply causes "weird" behaviour - like buttons not working.
We discussed this a few days ago on [1]
[1] http://www.mail-archive.com/users@myfaces.apache.org/msg22905.html
Regards,
Jeff Bischoff
Kenneth L Kurz & Assoc, Inc.
John Mani wrote:
> Hi
>
> I am seeing a weird problem:
> I have a page that has a toplevel panelGrid with 2 columns.
> In the left column, I have a panelGroup containing a bunch of
> textfields for text entry and
> then a commandButton with an associated action
> In the right column, I have a dataTable and a bunch of inputTexts
> below the dataTable.
>
> The action for the commandButton in the left panel is called
> "backer.search" and
> invokes the search method in the backer bean. I'm logging a message in that
> search() method, plus this method does a search and sets up the entries
> to be displayed
> in the dataTable in the right column.
>
> Now, the inputTexts in the right column have values that go like
> "backer.selection.firstName"
> and so on ... where backer.getSelection() returns a Customer object that
> has a getFirstName()
> method.
>
> The weird behaviour is that: if the above inputTexts have values like
> above : i.e., "backer.selection.firstName"
> etc. the commandButton doesn't seem to fire the search() method - the
> log message doesn't get
> printed and the dataTable is not filled up. However, if the inputTexts
> have values like
> "backer.firstName" (where backer.getFirstName() is a method that returns
> a simple string), the
> commandButton does fire the search() method.
>
> I'm at a loss - as these two seem completely independent.
>
> Sorry for the long and rambling mail, but any clues?
>
> -john
>
Re: Weird problem with dataTable, commandButtons, inputText
Posted by Jeff Bischoff <jb...@klkurz.com>.
John,
I might have a clue for you...
When the page is initially displayed, is "selection" equal to null? i.e.
#{backer.selection} would return null. If so then,
#{backer.selection.firstName} will result in a null pointer exception,
which in my experience with myfaces, does not display any kind of error
message but simply causes "weird" behaviour - like buttons not working.
We discussed this a few days ago on [1]
[1] http://www.mail-archive.com/users@myfaces.apache.org/msg22905.html
Regards,
Jeff Bischoff
Kenneth L Kurz & Assoc, Inc.
John Mani wrote:
> Hi
>
> I am seeing a weird problem:
> I have a page that has a toplevel panelGrid with 2 columns.
> In the left column, I have a panelGroup containing a bunch of
> textfields for text entry and
> then a commandButton with an associated action
> In the right column, I have a dataTable and a bunch of inputTexts
> below the dataTable.
>
> The action for the commandButton in the left panel is called
> "backer.search" and
> invokes the search method in the backer bean. I'm logging a message in that
> search() method, plus this method does a search and sets up the entries
> to be displayed
> in the dataTable in the right column.
>
> Now, the inputTexts in the right column have values that go like
> "backer.selection.firstName"
> and so on ... where backer.getSelection() returns a Customer object that
> has a getFirstName()
> method.
>
> The weird behaviour is that: if the above inputTexts have values like
> above : i.e., "backer.selection.firstName"
> etc. the commandButton doesn't seem to fire the search() method - the
> log message doesn't get
> printed and the dataTable is not filled up. However, if the inputTexts
> have values like
> "backer.firstName" (where backer.getFirstName() is a method that returns
> a simple string), the
> commandButton does fire the search() method.
>
> I'm at a loss - as these two seem completely independent.
>
> Sorry for the long and rambling mail, but any clues?
>
> -john
>