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/YYYY 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>
<TD><INPUT wicket:id="description" type="text" name="obs" value="_"/></TD>
If someone could help me I'll appreciate, thanks.
Bera
