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If
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you
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want
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to
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have
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a
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more
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"web
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2.0"
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validation
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on
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your
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forms
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here
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is
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a
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quick
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way
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to
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do
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it:
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Using
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the
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Wicket
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Example:
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Ajax
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Builtin:
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FormPage
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as
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a
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base,
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the
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onError
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method
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is
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called
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if
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any
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of
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your
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validators
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fail,
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in
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there
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you
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need
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to
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view
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the
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children
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components
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attached
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to
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your
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form
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and
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check
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the
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isValid()
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method
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on
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each
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one
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to
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determine
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if
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that
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component
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passed
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validation.
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A
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really
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easy
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to
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do
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this
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is
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the
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following:
| Code Block |
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} protected void onError(final AjaxRequestTarget target, Form form) { log.debug("onError called"); form.visitFormComponents(new FormComponent.IVisitor() { public void formComponent(FormComponent formComponent) { log.debug("Checking: " + formComponent.getMarkupId() + " " + formComponent.isValid()); if (!formComponent.isValid()){ // If this component failed validation, do something // fancy to display it to the user... target.addComponent(formComponent); target.appendJavascript( "new Effect.Shake($('" + formComponent.getMarkupId() + "'));"); } } }); } {code} |
The
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above
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example
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also
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adds
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in
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JavaScript
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effects
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borrowed
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from
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the
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Effects
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example
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using
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the
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script.aculo.us
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library.
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| HTML Comment | ||
|---|---|---|
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Everything below here was added by aakoch, a novice, so please, if there is something wrong, fix it! Thanks! |
| Note |
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The above code won't compile under 1.3.0-BETA. |
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Here's
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some
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code
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that
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will
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work
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with
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version
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1.3.0-BETA.
| Code Block |
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} protected void onError(final AjaxRequestTarget target, final Form form) { form.visitFormComponents(new IVisitor() { public Object formComponent(IFormVisitorParticipant formVisitor) { if (formVisitor instanceof FormComponent) { FormComponent formComponent = (FormComponent) formVisitor; if (!formComponent.isValid()){ // If this component failed validation, do something // fancy to display it to the user... target.addComponent(formComponent); // do a little dance target.appendJavascript( "new Effect.Shake($('" + formComponent.getMarkupId() + "'));"); // or update the feedback panel } } target.addComponent(form.getPage().get("feedback"))return formVisitor; } }} }); } |
To update the feedback panel:
| Code Block |
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protected void onError(final AjaxRequestTarget target, final Form form) { // or update the return formVisitor;feedback panel } }target.addComponent(form.getPage().get("feedback")); } {code} |