通过local.xml文件在产品视图页面内的magento unsetChild面包屑

Question

我不想删除全局级别的所有面包屑，而只想unsetChild产品视图页面中的面包屑。

以下是我的代码但不起作用

<catalog_product_view>
    <reference name="root">
        <action method="unsetChild">
            <child>breadcrumbs</child>
        </action>   
    </reference>
</catalog_product_view> 

我也试过以下但没有运气

<name>breadcrumbs</name> 

还有一件事我注意到，在我的catalog.xml文件中，产品视图的布局根本不会调用面包屑的块。以下是代码。如果有其他句柄调用breadcrumb块，它可能在哪里？

<catalog_product_view translate="label">
    <label>Catalog Product View (Any)</label>
    <!-- Mage_Catalog -->
    <reference name="root">
        <action method="setTemplate"><template>page/1column.phtml</template></action>
    </reference>
    <reference name="head">
        <action method="addJs"><script>varien/product.js</script></action>
        <action method="addJs"><script>varien/configurable.js</script></action>

        <action method="addItem"><type>js_css</type><name>calendar/calendar-win2k-1.css</name><params/><!--<if/><condition>can_load_calendar_js</condition>--></action>
        <action method="addItem"><type>js</type><name>calendar/calendar.js</name><!--<params/><if/><condition>can_load_calendar_js</condition>--></action>
        <action method="addItem"><type>js</type><name>calendar/calendar-setup.js</name><!--<params/><if/><condition>can_load_calendar_js</condition>--></action>
    </reference>
    <reference name="content">
        <block type="catalog/product_view" name="product.info" template="catalog/product/view.phtml">
            <!--
            <action method="addReviewSummaryTemplate"><type>default</type><template>review/helper/summary.phtml</template></action>
            <action method="addReviewSummaryTemplate"><type>short</type><template>review/helper/summary_short.phtml</template></action>
            <action method="addReviewSummaryTemplate"><type>...</type><template>...</template></action>
            -->
            <block type="catalog/product_view_media" name="product.info.media" as="media" template="catalog/product/view/media.phtml"/>
            <block type="core/text_list" name="alert.urls" as="alert_urls" translate="label">
                <label>Alert Urls</label>
            </block>

            <action method="setTierPriceTemplate"><template>catalog/product/view/tierprices.phtml</template></action>

            <block type="catalog/product_view_tabs" name="product.info.tabs" as="info_tabs" template="catalog/product/view/tabs.phtml" >
                <action method="addTab" translate="title" module="catalog"><alias>description</alias><title>Product Description</title><block>catalog/product_view_description</block><template>catalog/product/view/description.phtml</template></action>
                <!--<action method="addTab" translate="title" module="catalog"><alias>upsell_products</alias><title>We Also Recommend</title><block>catalog/product_list_upsell</block><template>catalog/product/list/upsell.phtml</template></action>-->
                <action method="addTab" translate="title" module="catalog"><alias>additional</alias><title>Additional Information</title><block>catalog/product_view_attributes</block><template>catalog/product/view/attributes.phtml</template></action>
                <!--<action method="addTab" translate="title" module="catalog"><alias>related_products</alias><title>Related Products</title><block>catalog/product_list_related</block><template>catalog/product/list/related.phtml</template></action>-->
                <block type="review/form" name="product.review.form" as="review_form"/>                                        
                <action method="addTab" translate="title" module="review">
                     <alias>product_additional_data</alias>
                     <title>Reviews</title>
                     <block>review/product_view_list</block>
                     <template>review/product/view/list_tab.phtml</template>
                </action>
            </block>

            <block type="catalog/product_list_upsell" name="product.info.upsell" as="upsell_products" template="catalog/product/list/upsell.phtml">
                <action method="setColumnCount"><columns>4</columns></action>
                <action method="setItemLimit"><type>upsell</type><limit>4</limit></action>
            </block>
            <block type="catalog/product_list_related" name="magentothem.relatedslider" as="related_slider" template="magentothem/relatedslider/relatedslider.phtml"/>
            <block type="catalog/product_view_additional" name="product.info.additional" as="product_additional_data" />
            <block type="catalog/product_view_description" name="product.description" as="description" template="catalog/product/view/description.phtml">
                <action method="addToParentGroup"><group>detailed_info</group></action>
            </block>
            <block type="catalog/product_view_attributes" name="product.attributes" as="additional" template="catalog/product/view/attributes.phtml">
                <action method="addToParentGroup"><group>detailed_info</group></action>
            </block>

            <block type="catalog/product_view" name="product.info.addto" as="addto" template="catalog/product/view/addto.phtml"/>
            <block type="catalog/product_view" name="product.info.addtocart" as="addtocart" template="catalog/product/view/addtocart.phtml"/>

            <block type="core/text_list" name="product.info.extrahint" as="extrahint" translate="label">
                <label>Product View Extra Hint</label>
            </block>

            <block type="catalog/product_view" name="product.info.options.wrapper" as="product_options_wrapper" template="catalog/product/view/options/wrapper.phtml" translate="label">
                <label>Info Column Options Wrapper</label>
                <block type="core/template" name="options_js" template="catalog/product/view/options/js.phtml"/>
                <block type="catalog/product_view_options" name="product.info.options" as="product_options" template="catalog/product/view/options.phtml">
                    <action method="addOptionRenderer"><type>text</type><block>catalog/product_view_options_type_text</block><template>catalog/product/view/options/type/text.phtml</template></action>
                    <action method="addOptionRenderer"><type>file</type><block>catalog/product_view_options_type_file</block><template>catalog/product/view/options/type/file.phtml</template></action>
                    <action method="addOptionRenderer"><type>select</type><block>catalog/product_view_options_type_select</block><template>catalog/product/view/options/type/select.phtml</template></action>
                    <action method="addOptionRenderer"><type>date</type><block>catalog/product_view_options_type_date</block><template>catalog/product/view/options/type/date.phtml</template></action>
            </block>

                    <block type="core/html_calendar" name="html_calendar" as="html_calendar" template="page/js/calendar.phtml"/>
                </block>

            <block type="catalog/product_view" name="product.info.options.wrapper.bottom" as="product_options_wrapper_bottom" template="catalog/product/view/options/wrapper/bottom.phtml" translate="label">
                <label>Bottom Block Options Wrapper</label>
                <action method="append"><block>product.info.addtocart</block></action>
                <action method="append"><block>product.info.addto</block></action>
            </block>

            <block type="core/template_facade" name="product.info.container1" as="container1">
                <action method="setDataByKey"><key>alias_in_layout</key><value>container1</value></action>
                <action method="setDataByKeyFromRegistry"><key>options_container</key><key_in_registry>product</key_in_registry></action>
                <action method="append"><block>product.info.options.wrapper</block></action>
                <action method="append"><block>product.info.options.wrapper.bottom</block></action>
            </block>
            <block type="core/template_facade" name="product.info.container2" as="container2">
                <action method="setDataByKey"><key>alias_in_layout</key><value>container2</value></action>
                <action method="setDataByKeyFromRegistry"><key>options_container</key><key_in_registry>product</key_in_registry></action>
                <action method="append"><block>product.info.options.wrapper</block></action>
                <action method="append"><block>product.info.options.wrapper.bottom</block></action>
            </block>
            <action method="unsetCallChild"><child>container1</child><call>ifEquals</call><if>0</if><key>alias_in_layout</key><key>options_container</key></action>
            <action method="unsetCallChild"><child>container2</child><call>ifEquals</call><if>0</if><key>alias_in_layout</key><key>options_container</key></action>
        </block>
    </reference>
   <!--  <reference name="right">
        <block type="catalog/product_list_related" name="catalog.product.related" before="-" template="catalog/product/list/related.phtml"/>
    </reference> -->

    <!-- <reference name="right">
        <block type="catalog/product_list_related" name="magentothem.relatedslider" before="-" template="magentothem/relatedslider/relatedslider.phtml"/>
        <block type="catalog/product_compare_sidebar"  name="catalog.compare.sidebar" template="catalog/product/compare/sidebar.phtml"/>
        <block type="tag/popular" name="tags_popular" after="magentothem.relatedslider" template="tag/popular.phtml"/>
        <block type="cms/block" name="banner_right" after="-">
            <action method="setBlockId"><block_id>banner_right</block_id></action>
        </block>
        <remove name="sale.reorder.sidebar"/> 
    </reference> -->

    <remove name="right.poll"/>
    <remove name="cart_sidebar"/>
</catalog_product_view>

Answer 1

下面的代码正在使用magento 1.9.2。将此代码放入pop

local.xml

Answer 2

在布局ProcessRequest(HttpContext)

中使用以下代码

public partial class SamplePage : System.Web.UI.Page
{
    public override void ProcessRequest(System.Web.HttpContext context)
    {
        if (conditionTrue)
        {
            context.Response.StatusCode = 404;
            context.ApplicationInstance.CompleteRequest();
        }
        else
        {
            base.ProcessRequest(context);
        }
    }

    protected void Page_Load(object sender, EventArgs e) // This is not called also :P
    {
    }

    protected void Page_PreRender(object sender, EventArgs e) // Not called now :)
    {
        throw new NotImplementedException();
    }
}

local.xml用于所有类别页面。