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POCreate inputtext dynamically
 

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    <p>I have the next question!</p> <p>I want to create inputtext dynamically from my backing bean, they would be inside of the a tabs also dynamic created which will be constructed in execution time.</p> <p>I manage to add the components dynamically using the <code>input</code> classes corresponding.</p> <p>But I have not manage to add the value tag to the component, a <code>valueExpresion</code> language which binds the value to the <code>managedBean</code> itself.</p> <p>I have found some code which I can summerize like this.</p> <pre><code> @ManagedBean @ViewScoped public MyManagedBean(){ private TabView tabsi; HtmlOutputLabel hol = new HtmlOutputLabel(); InputText txt2 = new InputText(); private String value; /* getter and setters */ public void MyManagedBean{ tabsi = new TabView(); Tab tab1 = new Tab(); tab1.setTitle("Tab1"); Tab tab2 = new Tab(); tab2.setTitle("Tab2"); tabsi.getChildren().add(tab1); tabsi.getChildren().add(tab2); hol.setValue("label"); hol.setStyleClass("label"); txt2.setValueExpression("value", TestController.getExpression("#{myManagedBean.value}")); txt2.setValue(value); tab1.getChildren().add(hol); tab1.getChildren().add(txt2); } public static ValueExpression getExpression(String expression) { FacesContext fc = FacesContext.getCurrentInstance(); ELContext ctx = fc.getELContext(); ExpressionFactory factory = fc.getApplication().getExpressionFactory(); return factory.createValueExpression(ctx, expression, Object.class); } public void test1() { System.out.println(value); } } </code></pre> <p>I successfully manage to build the components but I can not bind it to set the <code>ValueExpression</code>. When I call the test1 function from a button it print <code>null</code></p> <p>How can I bind the value to the <code>ManagedBean</code>???</p>
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    1. USRob
    1. USDavid Agustin Almanza Gaitan
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    1. COyou call the TestController.getExpression("#{myManagedBean.value}")); in the constructor of MyManagedBean. you can't get any thing from something that is under construction. it will always return null.
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      1. USfaissal
    2. COIn the constructor I stablish the value that would be bind! So really it is not called until I fire the actionListener, in my case a button which I press.
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      1. USDavid Agustin Almanza Gaitan
 

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