jsf dynamic inputtext fields

Question

I'm making a datatable where you can add exrta rows. In this extra rows, there's a inputtext. After putting something in the inputtext, this value should be saved to a list. But it's not. I tried in the method below using Sting as a parameter, but then to a list was saved : "javax.faces.component.html.HtmlInputText@23sdf" and thing like that. When I changed method to javax.faces.component.html.HtmlInputText method below returns null.

here's code of table:

    <h:dataTable value="#{correct.newPowody}" var="z" binding="#{table}" >
    <h:inputText binding="#{custom}" value="#{z}">
        <f:ajax event="blur" listener="#{correct.newPowodyAdder(table.rowIndex, custom)}"
                                    execute="@this" render="@form"/>
    </h:inputText>
    </h:dataTable>

here is my correct bean code:

    public void newPowodyAdder(int rowIndex, javax.faces.component.html.HtmlInputText powod) {
        String value = powod.getValue().toString();
        this.newPowody.set(rowIndex, value);
    }
}

this method just should add data from inputtext into a list. Thank you for help

Make sure your bean is `@SessionScoped`. If you're using JSF 2.2, then you can use `@ViewScoped`. — Luiggi Mendoza, Oct 17 '13 at 16:16

score 2 · Answer 1 · edited Jun 20 '20 at 09:12

2

This code really isn't making any sense. It's an overcomplicated attempt to fix the simple problem of String class being immutable. Don't use <h:inputText value="#{string}". Just use brace notation [] in EL to reference a list item by index like so value="#{bean.strings[index]}":

<h:dataTable binding="#{table}" value="#{correct.newPowody}">
    <h:column>
        <h:inputText value="#{correct.newPowody[table.rowIndex]}" />
    </h:column> 
</h:dataTable>

That's all. No ajax listener method mess necessary.

jsf dynamic inputtext fields

1 Answers1

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