＆LT; A4J：commandLink＆GT;不重新渲染 [英] <a4j:commandLink> Not Rerendering
问题描述
我想在我的应用程序（SEAM / RichFaces的）显示购物车，并收录了从购物车中删除＆LT; A4J：commandLink /＆GT; 旁边的每个项目从购物车中删除项目。当我点击链接它应该重新呈现在车的内容显示，该项目已被删除。然而，当我点击链接，没有任何反应。该购物车是由我的行动一个ArrayList包含的项目支持。我可以看到在我的行动电话，所以我知道该项目已被删除 - 而且，如果我刷新我看到它已被删除的页面。我做错了什么在下面，我的code导致这部分页面无法重新呈现正确？
更新：这好像它会重新解析正常，但不是在所有情况下。如果我有我的车超过1项，并删除任何项目，但最近添加的项目也重新呈现正常。如果我只有一个项目在购物车，或者我尝试删除最近添加的项目，它无法重新呈现任何内容。什么任何想法是怎么回事？
＆LT; S：DIV的styleClass =cart_bag呈现=＃{identity.loggedIn}＆GT;
＆LT; H6类=头＆GT;＆LT; H：的outputText值=你的购物车/＆GT;＆LT; A：状态
forceId =真正的ID =shoppingCartStatus＆GT;
＆LT; F：面NAME =开始＆GT;
＆LT; H：graphicImage的价值=/图片/ AJAX-loader.gif的styleClass =右/＆GT;
＆LT; / F：面＆GT;
＆LT; / A：状态＆gt;＆LT; / H6＆GT;
＆所述氏：格的id =shoppingCartItems＆GT;
＆LT; S：片段
渲染=＃{shoppingCart.shoppingCartContents.size（）乐0}＆GT;
＆LT; P＆GT;＆LT; S：跨度的styleClass =黑体＆GT;
＆LT; H：的outputText风格=颜色：#FFF;
值=您的购物车是空的/＆GT;
＆LT; BR /＆GT;
＆LT; BR /＆GT;
＆LT; BR /＆GT;
＆LT; / S：跨度＆GT;＆LT; / P＆GT;
＆所述; /秒：片断＆gt;
＆LT; S：片段
渲染=＃{shoppingCart.shoppingCartContents.size（）GT 0}＆GT;
＆LT; H：形式GT;
＆LT; UL＆GT;
＆LT; UI：重复值=＃{shoppingCart.shoppingCartContents}
VAR =cartItem＆GT;
＆LT;李＆GT;＆LT; S：DIV的styleClass =拇指＆GT;
＆LT; A HREF =detail.html＆GT;＆LT; IMG SRC =../图像/ cart_thumb.gif
中高音=/＆GT;＆所述; / a取代;
＆LT; / S：DIV＆GT; ＆LT; S：DIV的styleClass =降序＆GT;
＆LT; S：链接查看=/的index.xhtml的styleClass =黑体
值=＃{cartItem.name}＆GT;
＆LT; F：参数名称=ctxid值=＃{cartItem.uniqueIdentifier}/＆GT;
＆LT; / S：链接＆GT;
＆LT; P＆GT;＆LT;跨度类=黑体＆GT;单价：LT; / SPAN＆GT; $ 629 LT; / P＆GT;
＆LT; / S：DIV＆GT;＆LT; A：commandLink ID =removeItemFromCartBtn
行动=＃{shoppingCart.removeFromShoppingCart（）}
的styleClass =CRO公司重新呈现=shoppingCartItems
状态=shoppingCartStatus＆GT;
＆LT; F：参数名称=ctxid值=＃{cartItem.uniqueIdentifier}/＆GT;
＆LT; H：graphicImage的价值=/图片/ remove.png/＆GT;
＆LT; / A：commandLink＆GT;＆LT; /李＆GT;
＆LT; / UI：重复＆GT;
＆LT; / UL＆GT;
＆LT; /小时：形式GT;
＆所述; /秒：片断＆gt;
＆LT; / S：DIV＆GT;
＆LT; S：DIV的styleClass =清除＆GT;＆LT; / S：DIV＆GT;
＆LT; S：片段
渲染=＃{shoppingCart.shoppingCartContents.size（）GT 0}＆GT;
＆其中，P类=左边总额大胆＆GT;＆LT; H：的outputText
值=总计：＃{shoppingCart.shoppingCartTotal}/＆GT;＆LT; / P＆GT;
＆所述; A HREF =cart.html类=crtbtn右＆GT;＆其中;跨度＆GT;结帐＆所述; /跨度＆GT;＆所述; / a取代;
＆所述; /秒：片断＆gt;
＆LT; / S：DIV＆GT;
解决。我裹有问题的JSF code在＆LT; A4J：outputPanel ajaxRendered =真/＆GT; ，一切都开始按预期工作
I'm trying to display a shopping cart in my application (Seam/RichFaces), and have included a "remove from cart" <a4j:commandLink /> next to each item to remove the item from the cart. When I click the link it is supposed to rerender the cart contents to show that the item has been removed. However, when I click the link, nothing happens. The cart is backed by an ArrayList in my action that contains the items. I can see the call in my action, so I know the item has been removed -- and, if I refresh the page I see it has been removed. Am I doing something wrong in my code below that is causing this section of the page not to rerender properly?
UPDATE: It seems as though it will rerender properly, but not in all circumstances. If I've got more than 1 item in my cart and remove any item but the most recently added item it rerenders properly. If I only have one item in the cart, or I try and remove the most recently added item, it fails to rerender anything. Any thoughts on what's going on here??
<s:div styleClass="cart_bag" rendered="#{identity.loggedIn}">
<h6 class="head"><h:outputText value="Your Shopping Cart" /><a:status
forceId="true" id="shoppingCartStatus">
<f:facet name="start">
<h:graphicImage value="/images/ajax-loader.gif" styleClass="right" />
</f:facet>
</a:status></h6>
<s:div id="shoppingCartItems">
<s:fragment
rendered="#{shoppingCart.shoppingCartContents.size() le 0}">
<p><s:span styleClass="bold">
<h:outputText style="color: #FFF;"
value="Your shopping cart is empty" />
<br />
<br />
<br />
</s:span></p>
</s:fragment>
<s:fragment
rendered="#{shoppingCart.shoppingCartContents.size() gt 0}">
<h:form>
<ul>
<ui:repeat value="#{shoppingCart.shoppingCartContents}"
var="cartItem">
<li><s:div styleClass="thumb">
<a href="detail.html"><img src="../images/cart_thumb.gif"
alt="" /></a>
</s:div> <s:div styleClass="desc">
<s:link view="/index.xhtml" styleClass="bold"
value="#{cartItem.name}">
<f:param name="ctxid" value="#{cartItem.uniqueIdentifier}" />
</s:link>
<p><span class="bold">Unit Price:</span> $629</p>
</s:div><a:commandLink id="removeItemFromCartBtn"
action="#{shoppingCart.removeFromShoppingCart()}"
styleClass="cros" reRender="shoppingCartItems"
status="shoppingCartStatus">
<f:param name="ctxid" value="#{cartItem.uniqueIdentifier}" />
<h:graphicImage value="/images/remove.png" />
</a:commandLink></li>
</ui:repeat>
</ul>
</h:form>
</s:fragment>
</s:div>
<s:div styleClass="clear"></s:div>
<s:fragment
rendered="#{shoppingCart.shoppingCartContents.size() gt 0}">
<p class="total left bold"><h:outputText
value="Total: #{shoppingCart.shoppingCartTotal}" /></p>
<a href="cart.html" class="crtbtn right"><span>Checkout</span></a>
</s:fragment>
</s:div>
Solved. I wrapped the offending JSF code in a <a4j:outputPanel ajaxRendered="true" /> and everything began working as expected.
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