Re: Wicket MarkupContainer error, the component failed to render
I'm not fluent in Scala but it seems you're adding additional components
without reason:
private class TextDesc(id: String, workSheet: WorkSheet)
extends TextField[String](id) {
add(new TextField(textField, new Model[String]() {
TextDesc *is* a textfield, why are you adding another textfield to it?
private class DropDownChoiceCustomer(id: String, listCustomer: List[Customer],
workSheet: WorkSheet)
extends DropDownChoice[String](id) {
add(new DropDownChoice(customerSelection, listCustomer,
new ChoiceRenderer[Customer](name)) {
DropDownChoiceCustomer *is* a dropdownchoice already, why are you adding
another one to it?
Regards
Sven
On 05/05/2013 02:26 AM, Bruno Moura wrote:
I need to add components in a listView and associate all of them with a
model,for allow keep the state of each object saved in this listView. I'm
using wicket 1.4 with scala.
The code is showed bellow, isn't a short piece of code but I tried to keep
it simple as possible
add(new ListView[WorkSheet](listWorkSheet, listData) {
override protected def onBeforeRender() {
super.onBeforeRender()
}
def populateItem(item: ListItem[WorkSheet]) = {
var workSheet = item.getModelObject()
// Render normally
item.add(new LinkDate(initDate, workSheet, 1))
// render normally
item.add(new TextField(description))
// error on Render Page
item.add(new TextDesc(description, workSheet))
val listCustomer: java.util.List[Customer] = customerDAO.listCustomers
// render normally
item.add(new DropDownChoice(customerSelection, listCustomer, new
ChoiceRenderer[Customer](name)))
// error on Render Page
item.add(new DropDownChoiceCustomer(customerSelection,
listCustomer, workSheet))
}
// Render normally, works
private class LinkDate(id: String, workSheet: WorkSheet, type: Int) extends
Link[String](id) {
setEnabled(false)
add(new Label(label, new Model[String]() {
override def getObject(): String = {
var result =
if (type == 1) {
result = workSheet.initDate.toString(dd/MM/ HH:mm:ss)
}
return result
}
}))
def onClick() {}
}
// doesn't work
private class TextDesc(id: String, workSheet: WorkSheet) extends
TextField[String](id) {
add(new TextField(textField, new Model[String]() {
override def getObject(): String = {
var result =
if (result.length != 0) {
result = workSheet.description
}
return result
}
}))
}
// doesn't work
private class DropDownChoiceCustomer(id: String, listCustomer:
java.util.List[Customer], workSheet: WorkSheet) extends
DropDownChoice[String](id) {
add(new DropDownChoice(customerSelection, listCustomer, new
ChoiceRenderer[Customer](name)) {
protected override def wantOnSelectionChangedNotifications: Boolean =
{
true
}
protected override def onSelectionChanged(customerSelection:
Customer) {
System.out.println(selected: + customerSelection.id)
}
})
}
// I got the error messages bellow
WicketMessage: The component(s) below failed to render. A common problem is
that you have added a component in code but forgot to reference it in the
markup (thus the component will never be rendered).
1. [MarkupContainer [Component id = textField]]
2. [MarkupContainer [Component id = textField]]
Root cause:
org.apache.wicket.WicketRuntimeException: The component(s) below failed to
render. A common problem is that you have added a component in code but
forgot to reference it in the markup (thus the component will never be
rendered).
1. [MarkupContainer [Component id = textField]]
2. [MarkupContainer [Component id = textField]]
at org.apache.wicket.Page.checkRendering(Page.java:1201)
at org.apache.wicket.Page.renderPage(Page.java:941)
at
org.apache.wicket.protocol.http.WebRequestCycle.redirectTo(WebRequestCycle.java:201)
WicketMessage: The component(s) below failed to render. A common problem is
that you have added a component in code but forgot to reference it in the
markup (thus the component will never be rendered).
1. [MarkupContainer [Component id = customerSelection]]
2. [MarkupContainer [Component id = customerSelection]]
Root cause:
org.apache.wicket.WicketRuntimeException: The component(s) below failed to
render. A common problem is that you have added a component in code but
forgot to reference it in the markup (thus the component will never be
rendered).
1. [MarkupContainer [Component id = customerSelection]]
2. [MarkupContainer [Component id = customerSelection]]
// the markup
TD
SELECT wicket:id=customerSelection name=id/SELECT
/TD
TDINPUT wicket:id=description type=text name=obs value=_//TD
If someone could help me I'll appreciate, thanks.
Bera
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Get the selected item in the DropDownChoice using Scala
How can I get the selected item form a DropDownChoice inside an ListView? I implemented the chunky code bellow: val listCustomer: java.util.List[Customer] = customerDAO.listCustomers item.add(new DropDownChoice(customerSelection, listCustomer, new ChoiceRenderer[Customer](name))) In this case I want to get the name property displayed of the model Customer. Thanks Bera
Wicket - get the value of a textbox using scala
I'm trying to retrieve a value of a TextField as is showed bellow:
item.add(new TextField(description, new Model[String]() {
override def getObject(): String = {
customer.description = ??? // I don't know how I can get the
value here
return ...
}
}))
I have this TextField inserted in a ListView and I need to use the
TextField value to set it in a property model.
Thanks
Bera
Keep the state or value of a DropDownChoice and TextField both inside a ListView
I have implemented a listView and every time that a new item is added in
this ListView the values inserted in the textField and selected in a
DropDownChoice are lost.
The following pictures show what's happen before and after add a new
ListView item:
[image: Imagem inline 1]
And after Add a new item:
[image: Imagem inline 1]
I'm implemented the code bellow:
var listData = workSheetDAO.listWorkSheetUser(selectedUser,
beginDate, endDate)
var lbPeriodTotal = new Label(periodTotal)
lbPeriodTotal.setOutputMarkupId(true)
add(lbPeriodTotal)
add(new ListView[WorkSheet](listWorkSheet, listData) {
override protected def onBeforeRender() {
super.onBeforeRender()
}
def populateItem(item: ListItem[WorkSheet]) = {
var workSheet = item.getModelObject()
item.add(new LinkDate(initDate, workSheet, 1))
item.add(new LinkDate(endDate, workSheet, 1))
item.add(new TextField(description))
val listCustomer: java.util.List[Customer] =
customerDAO.listCustomers
item.add(new DropDownChoice(customerSelection, listCustomer,
new ChoiceRenderer[Customer](id)))
if (workSheet.endDate == None) {
item.add(new Label(total, ))
} else {
var period = new Period(workSheet.initDate,
workSheet.endDate.get)
periodTotal = periodTotal.plus(period)
lbPeriodTotal.setDefaultModel(new
Model(periodTotal.toPeriod().normalizedStandard().toString(getFormatter(
period = period.normalizedStandard()
item.add(new Label(total, period.toString(getFormatter(
}
}
}
private class LinkDate(id: String, workSheet: WorkSheet, type: Int)
extends Link[String](id) {
setEnabled(false)
add(new Label(label, new Model[String]() {
override def getObject(): String = {
var result =
if (type == 1) {
result = workSheet.initDate.toString(dd/MM/ HH:mm:ss)
} else
result = workSheet.endDate.toString(dd/MM/ HH:mm:ss)
return result
}
}))
def onClick() {}
}
The only values preserved are the values of the labels.
Please, someone could help me, thanks
Bera
Re: Keep the state or value of a DropDownChoice and TextField both inside a ListView
From javadoc of ListView
* p
* strongWARNING:/strong though you can nest ListViews within Forms,
you HAVE to set the
* setReuseItems property to true in order to have validation work
properly. By default,
* setReuseItems is false, which has the effect that ListView replaces all
child components by new
* instances. The idea behind this is that you always render the fresh
data, and as people usually
* use ListViews for displaying read-only lists (at least, that's what we
think), this is good
* default behavior. br /
* However, as the components are replaced before the rendering starts, the
search for specific
* messages for these components fails as they are replaced with other
instances. Another problem is
* that 'wrong' user input is kept as (temporary) instance data of the
components. As these
* components are replaced by new ones, your user will never see the wrong
data when setReuseItems
* is false.
* /p
On Mon, May 6, 2013 at 5:32 AM, Bruno Moura brunormo...@gmail.com wrote:
I have implemented a listView and every time that a new item is added in
this ListView the values inserted in the textField and selected in a
DropDownChoice are lost.
The following pictures show what's happen before and after add a new
ListView item:
[image: Imagem inline 1]
And after Add a new item:
[image: Imagem inline 1]
I'm implemented the code bellow:
var listData = workSheetDAO.listWorkSheetUser(selectedUser,
beginDate, endDate)
var lbPeriodTotal = new Label(periodTotal)
lbPeriodTotal.setOutputMarkupId(true)
add(lbPeriodTotal)
add(new ListView[WorkSheet](listWorkSheet, listData) {
override protected def onBeforeRender() {
super.onBeforeRender()
}
def populateItem(item: ListItem[WorkSheet]) = {
var workSheet = item.getModelObject()
item.add(new LinkDate(initDate, workSheet, 1))
item.add(new LinkDate(endDate, workSheet, 1))
item.add(new TextField(description))
val listCustomer: java.util.List[Customer] =
customerDAO.listCustomers
item.add(new DropDownChoice(customerSelection, listCustomer,
new ChoiceRenderer[Customer](id)))
if (workSheet.endDate == None) {
item.add(new Label(total, ))
} else {
var period = new Period(workSheet.initDate,
workSheet.endDate.get)
periodTotal = periodTotal.plus(period)
lbPeriodTotal.setDefaultModel(new
Model(periodTotal.toPeriod().normalizedStandard().toString(getFormatter(
period = period.normalizedStandard()
item.add(new Label(total, period.toString(getFormatter(
}
}
}
private class LinkDate(id: String, workSheet: WorkSheet, type: Int)
extends Link[String](id) {
setEnabled(false)
add(new Label(label, new Model[String]() {
override def getObject(): String = {
var result =
if (type == 1) {
result = workSheet.initDate.toString(dd/MM/ HH:mm:ss)
} else
result = workSheet.endDate.toString(dd/MM/ HH:mm:ss)
return result
}
}))
def onClick() {}
}
The only values preserved are the values of the labels.
Please, someone could help me, thanks
Bera
--
Regards - Ernesto Reinaldo Barreiro
