Exception JavaFX:无法设置绑定值异常

在我的javafx应用程序中，我创建了一个表视图，其中有一些项目。如果项目在表视图中，则应启用“删除”按钮，否则应禁用“删除”按钮

现在的问题是，当我选择项目并单击delete按钮时，它会抛出以下异常

我怎样才能解决这个问题

这是我的tableview代码

tableViewProject.setOnMouseClicked（新建EventHandler（））{
@凌驾
公共无效句柄（MouseeEvent事件）{
Project selectedProject=tableViewProject.getSelectionModel（）.getSelectedItem（）；
如果（selectedProject！=null）{
currentProject=selectedProject；
propertyChangeSupport.firePropertyChange（“projectManagerController.ProjectsSelected”，null，selectedProject）；
btn_remove_project.setDisable（false）；
}否则{
btn_remove_project.setDisable（true）；
}
}
});

---

您可能正在将其绑定到某个属性。这是单向绑定。为了从控件发回信息，您需要将其更改为BindBidirective

当JavaFX ImageView绑定到属性时，我遇到了以下问题：

imageViewProfile.imageProperty（）.bind（imageProperty）；

要解除绑定并修复此错误，“JavaFX:Bound值不能设置为异常” “，我必须解除与以下内容的绑定：

imageViewProfile.imageProperty（）.unbind（）；

错误是不言自明的-

无法设置绑定值

。这意味着，如果对某个属性使用了绑定，则不应手动设置该值。您是否将

btn\u remove\u项目的
disableProperty（）
绑定到某个地方？
Exception in thread "JavaFX Application Thread" java.lang.RuntimeException: Button.disable : A bound value cannot be set.
at javafx.beans.property.BooleanPropertyBase.set(BooleanPropertyBase.java:140)
at javafx.scene.Node.setDisable(Node.java:1543)
at com.virtusa.tempo.server.ui.controllers.ProjectManagerController$3.handle(ProjectManagerController.java:131)
at com.virtusa.tempo.server.ui.controllers.ProjectManagerController$3.handle(ProjectManagerController.java:124)
at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:86)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:54)
at javafx.event.Event.fireEvent(Event.java:198)
at javafx.scene.Scene$ClickGenerator.postProcess(Scene.java:3471)
at javafx.scene.Scene$ClickGenerator.access$8100(Scene.java:3399)
at javafx.scene.Scene$MouseHandler.process(Scene.java:3767)
at javafx.scene.Scene$MouseHandler.access$1500(Scene.java:3486)
at javafx.scene.Scene.impl_processMouseEvent(Scene.java:1762)
at javafx.scene.Scene$ScenePeerListener.mouseEvent(Scene.java:2495)
at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:350)
at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:275)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.tk.quantum.GlassViewEventHandler.lambda$handleMouseEvent$350(GlassViewEventHandler.java:385)
at com.sun.javafx.tk.quantum.GlassViewEventHandler$$Lambda$355/919089086.get(Unknown Source)
at com.sun.javafx.tk.quantum.QuantumToolkit.runWithoutRenderLock(QuantumToolkit.java:404)
at com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(GlassViewEventHandler.java:384)
at com.sun.glass.ui.View.handleMouseEvent(View.java:555)
at com.sun.glass.ui.View.notifyMouse(View.java:927)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.lambda$null$145(WinApplication.java:101)
at com.sun.glass.ui.win.WinApplication$$Lambda$39/1633781598.run(Unknown Source)
at java.lang.Thread.run(Thread.java:745)