since you are using a compound property model, and create your ddc with id
"categories" you are trying to access bean.getCategories() property, but i
see no such property defined. so why is your form model compound? once again
i urge you to read the models wiki page.
-igor
On 5/18/07, Florian Hehlen <[EMAIL PROTECTED]> wrote:
Here is the bean... sorry I should have thought to include it:
package com.sag.ids.web.data.dto;
import com.sag.ids.api.datamodel.java.*;
import java.io.*;
public class SymbolDto implements Serializable
{
public String
getIdsDocoId()
{
return theIdsDocoId;
}
public void
setIdsDocoId(String aIdsDocoId)
{
theIdsDocoId = aIdsDocoId;
}
public long
getIdsSymbolId()
{
return theIdsSymbolId;
}
public void
setIdsSymbolId(long aIdsSymbolId)
{
theIdsSymbolId = aIdsSymbolId;
}
public String
getName()
{
return theName;
}
public void
setName(String aName)
{
theName = aName;
}
public String
getCategoryName()
{
return theCategoryName;
}
public void
setCategoryName(String aCategoryName)
{
theCategoryName = aCategoryName;
}
public String
getCategoryId()
{
return theCategoryId;
}
public void
setCategoryId(String aCategoryId)
{
theCategoryId = aCategoryId;
}
public String
getProductTypeName()
{
return theProductTypeName;
}
public void
setProductTypeName(String aProductTypeName)
{
theProductTypeName = aProductTypeName;
}
public String
getProductTypeId()
{
return theProductTypeId;
}
public void
setProductTypeId(String aProductTypeId)
{
theProductTypeId = aProductTypeId;
}
public String
getUnderlyingTypeName()
{
return theUnderlyingTypeName;
}
public void
setUnderlyingTypeName(String aUnderlyingTypeName)
{
theUnderlyingTypeName = aUnderlyingTypeName;
}
public String
getUnderlyingTypeId()
{
return theUnderlyingTypeId;
}
public void
setUnderlyingTypeId(String aUnderlyingTypeId)
{
theUnderlyingTypeId = aUnderlyingTypeId;
}
public String
getCurrencyName()
{
return theCurrencyName;
}
public void
setCurrencyName(String aCurrencyName)
{
theCurrencyName = aCurrencyName;
}
public String
getCurrencyId()
{
return theCurrencyId;
}
public void
setCurrencyId(String aCurrencyId)
{
theCurrencyId = aCurrencyId;
}
public String
getExchangeName()
{
return theExchangeName;
}
public void
setExchangeName(String aExchangeName)
{
theExchangeName = aExchangeName;
}
public String
getExchangeId()
{
return theExchangeId;
}
public void
setExchangeId(String aExchangeId)
{
theExchangeId = aExchangeId;
}
public String
getDescription()
{
return theDescription;
}
public void
setDescription(String aDescription)
{
theDescription = aDescription;
}
public String
getTradingHours()
{
return theTradingHours;
}
public void
setTradingHours(String aTradingHours)
{
theTradingHours = aTradingHours;
}
public String
getUrl()
{
return theUrl;
}
public void setUrl(String aUrl)
{
theUrl = aUrl;
}
public double
getMultiplier()
{
return theMultiplier;
}
public void
setMultiplier(double aMultiplier)
{
theMultiplier = aMultiplier;
}
public void setDaoActionError(String aResult) {
theDaoActionErrorState = true;
theDaoActionError = aResult;
}
public boolean isDaoActionErrorState()
{
return theDaoActionErrorState;
}
public String getDaoActionError()
{
return theDaoActionError;
}
private long theIdsSymbolId = -1;
private String theIdsDocoId;
private String theName = "NEW SYMBOL";
private String theCategoryName = "";
private String theCategoryId = "";
private String theProductTypeName = "";
private String theProductTypeId = "";
private String theUnderlyingTypeName = "";
private String theUnderlyingTypeId = "";
private String theCurrencyName = "";
private String theCurrencyId = "";
private String theExchangeName = "";
private String theExchangeId = "";
private String theDescription = "";
private String theTradingHours = "";
private String theUrl = "";
private double theMultiplier = -1;
private String theDaoActionError ="";
private boolean theDaoActionErrorState;
}
Igor Vaynberg wrote:
no, it doesnt really help since we cant see the bean that is inside
mySymbol.
as far as the example below:
see the use of loadabledetachablemodel below.
also you are specifying the same model for selection and list of choices,
that makes no sense. if whatever bean inside mySymbol model has a
"categories" property, then see my correction below.
-igor
On 5/18/07, Florian Hehlen <[EMAIL PROTECTED]> wrote:
>
>
> public class SymbolAddUpdate extends WebPage
> {
> public SymbolAddUpdate(PageParameters aParams)
> {
> addFeedback();
> addPageTitle("Add/Update Symbol");
>
> CompoundPropertyModel mySymbol = checkNewOrUpdate(aParams,
> aParams.getString("theSymbolId"));
>
> final Form myForm = new AddUpdateForm("form.symbol", mySymbol);
> add(myForm);
>
> TextField myName = new TextField("name");
>
> final ChoiceOptions myOptions = new LoadableDetachableModel() (
> load(){ return theDao.findAllCategoriesAsDto()); }}
>
> final ChoiceRenderer myRenderer = new ChoiceRenderer("name",
> "id");
>
> final CategoryChoices myCategories = new CategoryChoices();
> DropDownChoice myCat
> = new DropDownChoice("categories", myCategories,myRenderer);
> [...]
>
> }
>
> I hope this helps.
>
> thanks,
> florian
>
> Igor Vaynberg wrote:
>
> if you show me the exact code snippet that doesnt work that will give me
> the necessary context.
>
> -igor
>
>
> On 5/17/07, Florian Hehlen < [EMAIL PROTECTED]> wrote:
> >
> > Hi,
> >
> > Thanks for the help... It's starting to make more sense to me although
> > still not working. The issue is definitely with the form model. because all
> > my sandbox experiments show me that it all goes to hell when i introduce the
> > model in the form. My form is a a bean wrapped in a CompoundPropertyModel.
> >
> > Maybe you can clarify below your explanation in that context.
> >
> > florian
> >
> > Igor Vaynberg wrote:
> >
> > if you type it it looks like this
> >
> > DDC<T>(String,IModel<T>,IModel<List<T>>,IChoiceRenderer<T>)
> >
> > the first model is the one that holds the selection, the second is the
> > one that holds a list of available choices.
> >
> > the constructor with a single model:
> >
> > DDC<T>(String,IModel<List<T>>,IChoiceRenderer<T>)
> >
> > is used when you use DDC in combination with a compound property model
> > on the form, in which case the ddc's id is used as a property expression
> > into form's model to determine the selection. there is a great wiki page on
> > models.
> >
> > so try this
> >
> > myForm.add(new DropDownChoice("select",new Model(),new
> > MyChoices(),myRenderer));
> >
> > this will create a ddc with a null selection. its not practical,
> > because to get the selection you have to call ddc.getmodelobject(),
> > but it will at least get you going before you decide on what model to use.
> >
> >
> > -igor
> >
> >
> > On 5/16/07, Florian Hehlen < [EMAIL PROTECTED]> wrote:
> > >
> > > hi,
> > >
> > > I am new to wicket so I am not sure how simple this issue is.
> > >
> > > I am creating DropDownChoice components. I want to a) build the the
> > > Options from a list of Objects (not primitives) and b) want to
> > > render
> > > the option id and value as an attribute of the object in the list.
> > > this
> > > definitly works in the following sample code:
> > >
> > > public class WicketSandbox extends WebPage
> > > {
> > > public WicketSandbox()
> > > {
> > > addPageTitle("Development Sandbox");
> > > final Form myForm = new Form("form");
> > > add(myForm);
> > >
> > > final ChoiceRenderer myRenderer = new ChoiceRenderer("name",
> > > "id");
> > > myForm.add(new DropDownChoice("select",new
> > > MyChoices(),myRenderer));
> > >
> > > }
> > > }
> > >
> > > But as soon as I add an IModel to the form it seems that the
> > > DropDownChoice looks up the choices in the form's IModel. I have
> > > tried
> > > to use the other constructors for the DropDownChoice which require
> > > an
> > > (String id, IModel model, IModel choices, IChoicerenderer renderer)
> > > but
> > > I can't figure out what is the difference between the 2 IModel
> > > objects
> > > that have to be provided. If I provide twice a ref to the same
> > > object I
> > > get a different error:
> > >
> > > The expression 'id' is neither an index nor is it a method for the
> > > list class java.util.ArrayList
> > >
> > > this is an improvement because it is accessing the right object and
> > > retrieving the list of choices but not extracting the the objects
> > > from
> > > the list as it does when I use (String id, IModel choices,
> > > IChoicerenderer renderer).
> > >
> > > In all cases if I remove the ChoiceRenderer my web page builds and
> > > displays but I see object.toString() values in my drop-downs.
> > >
> > > Any tips or pointers would be greatly appreciated.
> > >
> > > Florian Hehlen
> > >
> > >
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