下面是我的代码片段，当我使用dojo StackContainer时，只要Stack container.startup被触发，除了内容窗格的标题之外，所有内容都会被隐藏。请告诉我哪里出错了：

var linkOamTp = new TitlePane({
            id:"linkOamTp",
            preventCache : false,
            open :true
        });
        registry.byId(containerWdg).addChild(linkOamTp);

        domConstruct.create("div",{id:"linkOamStackControllerDiv"},linkOamTp.containerNode);
        domConstruct.create("div",{id:"linkOamStackContainerDiv"},linkOamTp.containerNode);
        var linkOamSc = new StackContainer({
            style: "width: 100% !important; height: 98% !important",
            id: "linkOamStackContainer"
        },"linkOamStackContainerDiv");

        var cp1 = new ContentPane({
            title: "A-END",
            style : " width:100%; height: 100%; ",
            content : "content a"
        }); 
        linkOamSc.addChild(cp1);

        var cp2 = new ContentPane({
            title: "Z-END",
            style : " width:100%; height:100%; ",
            content : "content-b"
            });
        linkOamSc.addChild(cp2);

        var controller = new StackController({containerId: linkOamSc.id},"linkOamStackControllerDiv");
        linkOamSc.startup();
        controller.startup();