更改下拉值变化的禁用选项卡的类别

Question

我有1个下拉菜单并基于下拉选项卡将启用或禁用。默认情况下，我为所有选项卡使用getTabContainerCssClass（），它会将所有选项卡显示为启用视图，但是我想更改选项卡css类，因为它在更改下拉值后看起来被禁用。

DropDownChoice ProductDropDown = new DropDownChoice("ProductList", new PropertyModel(this, "SupplierProduct"),ProductList, new choiceRenderer("name","id")); 
add(supplierProductDropDown); 

supplierProductDropDown.add(new AjaxFormComponentUpdatingIndicatingBehavior("onchange"){ 
      @Override 
      protected void onUpdate(AjaxRequestTarget target) { 
       /* do some code for changing dropdown */ 
      } 
     }); 

tabs = new ArrayList<AbstractTab>(); 

/* provide some tab details */ 

tab = new AjaxTabbedPanel("tabs", tabs){ 

     private static final long serialVersionUID = 1L; 

     @Override 
     protected String getTabContainerCssClass() { 
      return "producttab-row"; 
     } 
     @Override 
     protected WebMarkupContainer newLink(String linkId, final int index) { 

      return new Link(linkId) 
      { 
        private static final long serialVersionUID = 1L; 

        public void onClick() { 
          setSelectedTab(index); 
        } 

        @Override 
        public boolean isEnabled() { 
         if(index == 1 && /*drop down condition that will be disable the tab*/){ 
          /*I want to change css of this tab*/ 
          return false; 
         } 
         else{ 
          return true; 
         } 
        } 
      } 
     } 
} 

这个任何想法......

更新：更新代码

@Override 
        protected void onComponentTag(final ComponentTag tag) { 
        // TODO Auto-generated method stub 
         super.onComponentTag(tag); 
         if(/*Dropdown condition*/){ 

          tag.append("class", "disabletab", " "); 
         } 
} 

后，但它并没有为此工作。请帮助

SOLUTION：我在AjaxTabbedPanel.see覆盖onComponentTag下面的代码

tabs = new ArrayList<AbstractTab>(); 

/* provide some tab details */ 

tab = new AjaxTabbedPanel("tabs", tabs){ 

    private static final long serialVersionUID = 1L; 

    @Override 
    protected String getTabContainerCssClass() { 
     return "producttab-row"; 
    } 
@Override 
      protected void onComponentTag(final ComponentTag tag) 
      { 
      super.onComponentTag(tag); 

      String cssClass = tag.getAttribute("class"); 
      if (cssClass == null) 
      { 
       cssClass = " "; 
      } 
      /*check condition and change css classname*/ 
      tag.put("class", cssClass.trim()); 
     } 
} 

Answer 1

，你应该重写Link#onComponentTag(ComponentTag)方法，使用设置的CSS类：tag.append("class", "dynamicValueDependingOnDropDownsModel", " ")。