Re: Drop Down Choice default value

[Ernesto Reinaldo Barreiro]

Hi,

On Mon, May 18, 2015 at 12:03 AM, Chris  wrote:

> Hi,
>
> when using a drop down as follows, always the whole page is reloaded on
> drop down change.
>
> How is it possible to update only a specific component via ajax?
>
> Thanks,
> Chris
>
>
>
> DropDownChoice tag = new DropDownChoice("tags", new
> PropertyModel(this, "selectedCategory"), displayCategories) {
>
> @Override
> protected boolean wantOnSelectionChangedNotifications() {
> return true;
> }
>

This is what is triggering page reload... Do not override it and everything
should work. Use the source Luke

/**
 * Whether this component's onSelectionChanged event handler should be
called using javascript
 * window.location if the selection changes. If true, a roundtrip
will be generated
 * with each selection change, resulting in the model being updated (of
just this component) and
 * onSelectionChanged being called. This method returns false by default.
If you wish to use
 * Ajax instead, let {@link #wantOnSelectionChangedNotifications()} return
false and add an
 * {@link AjaxFormComponentUpdatingBehavior} to the component using the
onchange event.
 *
 * @return True if this component's onSelectionChanged event handler should
called using
 * javascript if the selection changes
 */
protected boolean wantOnSelectionChangedNotifications()
{
return false;
}



>
> @Override
> protected void onSelectionChanged(String newSelection) {
> super.onSelectionChanged(newSelection);
> selectedCategory = newSelection;
>
> }
>
>
> @Override
> protected String getNullValidDisplayValue() {
> return "All";
> }
>
> };
>
>
> tag.add(new AjaxFormComponentUpdatingBehavior("onchange") {
>private static final long serialVersionUID = 1L;
>   @Override
>   protected void onUpdate(AjaxRequestTarget target) {
>target.add(...);
>}
> });
>
>
>
> > Am 12.05.2015 um 23:49 schrieb Chris :
> >
> > Marcel, Sven,
> >
> > thanks a lot for your answers!
> > Chris
> >
> >
> >> Am 12.05.2015 um 15:24 schrieb Marcel Barbosa Pinto <
> marcel.po...@gmail.com>:
> >>
> >> Another way is to provide a value on your .properties file.
> >>
> >> For instance:
> >>
> >> nullValid=Please choose
> >> myFieldId.nullValid=Please choose a value for ${label}
> >>
> >> On Tue, May 12, 2015 at 8:26 AM, Sven Meier  wrote:
> >>
> >>> Hi,
> >>>
> >>> you have to override #getNullValidDisplayValue(),
> >>> #getNullKeyDisplayValue() is for cases where null is *not* valid.
> >>>
> >>> Regards
> >>> Sven
> >>>
> >>>
> >>>
> >>> On 12.05.2015 12:44, Chris wrote:
> >>>
>  Hi all,
> 
>  I have a Drop down choice field and would like to override the default
>  select value.
> 
>  I have made following settings but the default value is empty. Is
> there
>  sth missing?
> 
>  setNullValid(true);
>  @Override
>  protected String getNullKeyDisplayValue() {
> return "Please choose";
>  }
>  Thanks, Chris
> 
> >>>
> >>>
> >>> -
> >>> To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
> >>> For additional commands, e-mail: users-h...@wicket.apache.org
> >>>
> >>>
> >>
> >>
> >> --
> >>
> >> Marcel Barbosa Pinto
> >> 55 11 98255 8288
> >
> >
> > -
> > To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
> > For additional commands, e-mail: users-h...@wicket.apache.org
> >
>
>
> -
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>
>


-- 
Regards - Ernesto Reinaldo Barreiro

Re: Drop Down Choice default value

[Tobias Soloschenko]

Hi,

see

http://ci.apache.org/projects/wicket/apidocs/6.0.x/org/apache/wicket/ajax/AjaxEventBehavior.html

use change event.

kind regards

Tobias

> Am 18.05.2015 um 00:03 schrieb Chris :
> 
> Hi,
> 
> when using a drop down as follows, always the whole page is reloaded on drop 
> down change.
> 
> How is it possible to update only a specific component via ajax?
> 
> Thanks,
> Chris
> 
> 
> 
> DropDownChoice tag = new DropDownChoice("tags", new 
> PropertyModel(this, "selectedCategory"), displayCategories) {
> 
>@Override
>protected boolean wantOnSelectionChangedNotifications() {
>return true;
>}
> 
>@Override
>protected void onSelectionChanged(String newSelection) {
>super.onSelectionChanged(newSelection);
>selectedCategory = newSelection;
> 
>}
> 
> 
>@Override
>protected String getNullValidDisplayValue() {
>return "All";
>}
> 
>};
> 
> 
> tag.add(new AjaxFormComponentUpdatingBehavior("onchange") {
>   private static final long serialVersionUID = 1L;
>  @Override
>  protected void onUpdate(AjaxRequestTarget target) {
>   target.add(...);
>   }
> });
> 
> 
> 
>> Am 12.05.2015 um 23:49 schrieb Chris :
>> 
>> Marcel, Sven,
>> 
>> thanks a lot for your answers!
>> Chris
>> 
>> 
>>> Am 12.05.2015 um 15:24 schrieb Marcel Barbosa Pinto 
>>> :
>>> 
>>> Another way is to provide a value on your .properties file.
>>> 
>>> For instance:
>>> 
>>> nullValid=Please choose
>>> myFieldId.nullValid=Please choose a value for ${label}
>>> 
 On Tue, May 12, 2015 at 8:26 AM, Sven Meier  wrote:
 
 Hi,
 
 you have to override #getNullValidDisplayValue(),
 #getNullKeyDisplayValue() is for cases where null is *not* valid.
 
 Regards
 Sven
 
 
 
> On 12.05.2015 12:44, Chris wrote:
> 
> Hi all,
> 
> I have a Drop down choice field and would like to override the default
> select value.
> 
> I have made following settings but the default value is empty. Is there
> sth missing?
> 
> setNullValid(true);
> @Override
> protected String getNullKeyDisplayValue() {
>   return "Please choose";
> }
> Thanks, Chris
 
 
 -
 To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
 For additional commands, e-mail: users-h...@wicket.apache.org
>>> 
>>> 
>>> -- 
>>> 
>>> Marcel Barbosa Pinto
>>> 55 11 98255 8288
>> 
>> 
>> -
>> To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
>> For additional commands, e-mail: users-h...@wicket.apache.org
> 
> 
> -
> To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
> For additional commands, e-mail: users-h...@wicket.apache.org
> 

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Re: Drop Down Choice default value

[Chris]

Hi,

when using a drop down as follows, always the whole page is reloaded on drop 
down change.

How is it possible to update only a specific component via ajax?

Thanks,
Chris



DropDownChoice tag = new DropDownChoice("tags", new 
PropertyModel(this, "selectedCategory"), displayCategories) {

@Override
protected boolean wantOnSelectionChangedNotifications() {
return true;
}

@Override
protected void onSelectionChanged(String newSelection) {
super.onSelectionChanged(newSelection);
selectedCategory = newSelection;

}


@Override
protected String getNullValidDisplayValue() {
return "All";
}

};


tag.add(new AjaxFormComponentUpdatingBehavior("onchange") {
   private static final long serialVersionUID = 1L;
  @Override
  protected void onUpdate(AjaxRequestTarget target) {
   target.add(...);
   }
});



> Am 12.05.2015 um 23:49 schrieb Chris :
> 
> Marcel, Sven,
> 
> thanks a lot for your answers!
> Chris
> 
> 
>> Am 12.05.2015 um 15:24 schrieb Marcel Barbosa Pinto :
>> 
>> Another way is to provide a value on your .properties file.
>> 
>> For instance:
>> 
>> nullValid=Please choose
>> myFieldId.nullValid=Please choose a value for ${label}
>> 
>> On Tue, May 12, 2015 at 8:26 AM, Sven Meier  wrote:
>> 
>>> Hi,
>>> 
>>> you have to override #getNullValidDisplayValue(),
>>> #getNullKeyDisplayValue() is for cases where null is *not* valid.
>>> 
>>> Regards
>>> Sven
>>> 
>>> 
>>> 
>>> On 12.05.2015 12:44, Chris wrote:
>>> 
 Hi all,
 
 I have a Drop down choice field and would like to override the default
 select value.
 
 I have made following settings but the default value is empty. Is there
 sth missing?
 
 setNullValid(true);
 @Override
 protected String getNullKeyDisplayValue() {
return "Please choose";
 }
 Thanks, Chris
 
>>> 
>>> 
>>> -
>>> To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
>>> For additional commands, e-mail: users-h...@wicket.apache.org
>>> 
>>> 
>> 
>> 
>> -- 
>> 
>> Marcel Barbosa Pinto
>> 55 11 98255 8288
> 
> 
> -
> To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
> For additional commands, e-mail: users-h...@wicket.apache.org
> 


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Re: Drop Down Choice default value

[Chris]

Marcel, Sven,

thanks a lot for your answers!
Chris


> Am 12.05.2015 um 15:24 schrieb Marcel Barbosa Pinto :
> 
> Another way is to provide a value on your .properties file.
> 
> For instance:
> 
> nullValid=Please choose
> myFieldId.nullValid=Please choose a value for ${label}
> 
> On Tue, May 12, 2015 at 8:26 AM, Sven Meier  wrote:
> 
>> Hi,
>> 
>> you have to override #getNullValidDisplayValue(),
>> #getNullKeyDisplayValue() is for cases where null is *not* valid.
>> 
>> Regards
>> Sven
>> 
>> 
>> 
>> On 12.05.2015 12:44, Chris wrote:
>> 
>>> Hi all,
>>> 
>>> I have a Drop down choice field and would like to override the default
>>> select value.
>>> 
>>> I have made following settings but the default value is empty. Is there
>>> sth missing?
>>> 
>>> setNullValid(true);
>>> @Override
>>> protected String getNullKeyDisplayValue() {
>>> return "Please choose";
>>> }
>>> Thanks, Chris
>>> 
>> 
>> 
>> -
>> To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
>> For additional commands, e-mail: users-h...@wicket.apache.org
>> 
>> 
> 
> 
> -- 
> 
> Marcel Barbosa Pinto
> 55 11 98255 8288


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Re: Drop Down Choice default value

[Marcel Barbosa Pinto]

Another way is to provide a value on your .properties file.

For instance:

nullValid=Please choose
myFieldId.nullValid=Please choose a value for ${label}

On Tue, May 12, 2015 at 8:26 AM, Sven Meier  wrote:

> Hi,
>
> you have to override #getNullValidDisplayValue(),
> #getNullKeyDisplayValue() is for cases where null is *not* valid.
>
> Regards
> Sven
>
>
>
> On 12.05.2015 12:44, Chris wrote:
>
>> Hi all,
>>
>> I have a Drop down choice field and would like to override the default
>> select value.
>>
>> I have made following settings but the default value is empty. Is there
>> sth missing?
>>
>> setNullValid(true);
>> @Override
>> protected String getNullKeyDisplayValue() {
>>  return "Please choose";
>> }
>> Thanks, Chris
>>
>
>
> -
> To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
> For additional commands, e-mail: users-h...@wicket.apache.org
>
>


-- 

Marcel Barbosa Pinto
55 11 98255 8288

Re: Drop Down Choice default value

[Sven Meier]

Hi,

you have to override #getNullValidDisplayValue(), 
#getNullKeyDisplayValue() is for cases where null is *not* valid.


Regards
Sven


On 12.05.2015 12:44, Chris wrote:

Hi all,

I have a Drop down choice field and would like to override the default select 
value.

I have made following settings but the default value is empty. Is there sth 
missing?

setNullValid(true);
@Override
protected String getNullKeyDisplayValue() {
 return "Please choose";
}
Thanks, Chris



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Re: Drop Down Choice

[Marcel Barbosa Pinto]

Hi.. If you want only the selected value, you could create a hidden field
to mirror the dropdown's value.
Em 10/05/2015 14:48, "Sebastien"  escreveu:

> Hi Chris,
>
> AFAIK no. I don't know if such request feature has already been
> discussed...
>
> Otherwise, I think this could be integrated in wicket-kendo-ui
> http://demos.telerik.com/kendo-ui/dropdownlist/index
>
> If you are interested with, please open a ticket here:
> https://github.com/sebfz1/wicket-jquery-ui/issues
>
> Thanks & best regards,
> Sebastien.
>
>
> On Sun, May 10, 2015 at 7:10 PM, Chris  wrote:
>
> > Hi all,
> >
> > is it possible to have a drop-down box without a list of choices (the
> list
> > is directly coded in html as  and only the selected value should
> be
> > read)?
> >
> > Thanks, Chris
> > -
> > To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
> > For additional commands, e-mail: users-h...@wicket.apache.org
> >
> >
>

Re: Drop Down Choice

[Sebastien]

Hi Chris,

AFAIK no. I don't know if such request feature has already been discussed...

Otherwise, I think this could be integrated in wicket-kendo-ui
http://demos.telerik.com/kendo-ui/dropdownlist/index

If you are interested with, please open a ticket here:
https://github.com/sebfz1/wicket-jquery-ui/issues

Thanks & best regards,
Sebastien.


On Sun, May 10, 2015 at 7:10 PM, Chris  wrote:

> Hi all,
>
> is it possible to have a drop-down box without a list of choices (the list
> is directly coded in html as  and only the selected value should be
> read)?
>
> Thanks, Chris
> -
> To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
> For additional commands, e-mail: users-h...@wicket.apache.org
>
>

RE: Drop Down Choice

[Wilhelmsen Tor Iver]

> typing "T" would select "Two", but typing "Th" would select "Three".  Is
> this possible in Wicket?

This is the way well-behaved modern browsers already work :)

- Tor I.

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RE: Drop Down Choice

[Shelli Orton]

Hi,

The wicket.visural.net first example looks like exactly what I need.

Thanks!

Shelli

-Original Message-
From: nino martinez wael [mailto:nino.martinez.w...@gmail.com] 
Sent: 18 March 2011 11:05 AM
To: users@wicket.apache.org
Subject: Re: Drop Down Choice

theres this one (though not dropdown)

http://www.wicket-library.com/wicket-examples/ajax/autocomplete

Or this one if you want a drop down:
http://wicket.visural.net/examples/app/dropdown

-Nino

<http://www.wicket-library.com/wicket-examples/ajax/autocomplete;jsessio
nid=FE414790D6B5E7ACECC809CB9E9C9CEB?0>

2011/3/18 Shelli Orton 

> Hi,
>
> I've been looking for a Wicket drop down widget where one can choose
an
> item from the list by typing more than the first character.  For
> example, if my list contains the following values:
>
> One
> Two
> Three
> Four
> Five
>
> typing "T" would select "Two", but typing "Th" would select "Three".
Is
> this possible in Wicket?
>
> Thanks!
>
> Shelli
>
> -
> To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
> For additional commands, e-mail: users-h...@wicket.apache.org
>
>

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Re: Drop Down Choice

[Martin Makundi]

Hi!

1. Invisible mode is always possible.

2. Maybe autocompletetextfield will be ok?

3. You can integrate pretty easily a jquery skin.

**
Martin

2011/3/18 Shelli Orton :
> Hi,
>
> I've been looking for a Wicket drop down widget where one can choose an
> item from the list by typing more than the first character.  For
> example, if my list contains the following values:
>
> One
> Two
> Three
> Four
> Five
>
> typing "T" would select "Two", but typing "Th" would select "Three".  Is
> this possible in Wicket?
>
> Thanks!
>
> Shelli
>
> -
> To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
> For additional commands, e-mail: users-h...@wicket.apache.org
>
>

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Re: Drop Down Choice

[nino martinez wael]

theres this one (though not dropdown)

http://www.wicket-library.com/wicket-examples/ajax/autocomplete

Or this one if you want a drop down:
http://wicket.visural.net/examples/app/dropdown

-Nino



2011/3/18 Shelli Orton 

> Hi,
>
> I've been looking for a Wicket drop down widget where one can choose an
> item from the list by typing more than the first character.  For
> example, if my list contains the following values:
>
> One
> Two
> Three
> Four
> Five
>
> typing "T" would select "Two", but typing "Th" would select "Three".  Is
> this possible in Wicket?
>
> Thanks!
>
> Shelli
>
> -
> To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
> For additional commands, e-mail: users-h...@wicket.apache.org
>
>