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  1. ZK
  2. ZK-4221

load binding order/cleanup problem

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    • Icon: Bug Bug
    • Resolution: Fixed
    • Icon: Major Major
    • 8.6.2
    • Freshly, 8.0.5, 8.6.1, 8.6.0.1
    • Databind 2
    • Security Level: Jimmy
    • ZK 8.6.2 S1, ZK 8.6.2 S2
    • None

      Steps to Reproduce

      load-binding-sequence-error.zul

      toggle the checkbox to switch the template from floating point to text input.

      Current Result

      when checking an error occurs:

      Feb 26, 2019 5:24:32 PM org.zkoss.zk.ui.impl.UiEngineImpl handleError
SEVERE: 
java.lang.NumberFormatException: For input string: "Test"
	at java.base/jdk.internal.math.FloatingDecimal.readJavaFormatString(FloatingDecimal.java:2054)
	at java.base/jdk.internal.math.FloatingDecimal.parseDouble(FloatingDecimal.java:110)
	at java.base/java.lang.Double.parseDouble(Double.java:543)
	at java.base/java.lang.Double.<init>(Double.java:625)
	at org.zkoss.lang.Classes.coerce(Classes.java:1373)
	at org.zkoss.bind.impl.LoadPropertyBindingImpl.load(LoadPropertyBindingImpl.java:87)
	at org.zkoss.bind.impl.BinderImpl.doPropertyChange0(BinderImpl.java:480)
	at org.zkoss.bind.impl.BinderImpl.doPropertyChange(BinderImpl.java:455)
	at org.zkoss.bind.impl.BinderImpl.access$300(BinderImpl.java:136)
	at org.zkoss.bind.impl.BinderImpl$QueueListener.onEvent(BinderImpl.java:414)
	at org.zkoss.zk.ui.event.impl.DesktopEventQueue$QueueListener.onEvent(DesktopEventQueue.java:168)
	at org.zkoss.zk.ui.AbstractComponent.onEvent(AbstractComponent.java:3179)
	at org.zkoss.zk.ui.AbstractComponent.service(AbstractComponent.java:3149)
	at org.zkoss.zk.ui.AbstractComponent.service(AbstractComponent.java:3091)
	at org.zkoss.zk.ui.impl.EventProcessor.process(EventProcessor.java:138)
	at org.zkoss.zk.ui.impl.UiEngineImpl.processEvent(UiEngineImpl.java:1845)
	at org.zkoss.zk.ui.impl.UiEngineImpl.process(UiEngineImpl.java:1617)
	at org.zkoss.zk.ui.impl.UiEngineImpl.execUpdate(UiEngineImpl.java:1320)
	at org.zkoss.zk.au.http.DHtmlUpdateServlet.process(DHtmlUpdateServlet.java:611)
...

      Expected Result

      no error
      template should render first and then trigger the load bindings of the newly rendered children

      Debug Info

      when setting a breakpoint it becomes obvious that the @load binding for vm.value still fires on the doublebox, even though the template should have switched to textbox already

      Root Cause

      either the @load bindings trigger too early or they are not cleaned up for detached components at this point

      Workaround

        1. load-binding-sequence-error.zul
          1.0 kB

            DevChu DevChu
            cor3000 cor3000
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              Created:
              Updated:
              Resolved: