获取占位符中的组件数量，Sitecore [英] Get number of components in placeholder, Sitecore

问题描述

我有一个组件需要知道当前添加到同一个占位符的组件数量，这是因为它需要根据占位符中的索引更新 html 属性的值.

I have a component that needs to know how many components thats currently added to the very same placeholder, this since it needs to update a value of an html-attribute based on its index within the placeholder.

是否可以获取已添加到占位符的组件数量，或获取当前渲染器索引?

Is there anyway to get either the number of components thats already added to a placeholder, or to get the current-renderers index?

通常我只会使用一个简单的 for 循环并设置属性，但因为它是一个带有组件的占位符，所以不是一个选项.

Usually I would just use a simple for-loop and set the attribute, but since its a placeholder with components thats not an option.

提前致谢！

推荐答案

试试这个:

var placeholder = "my-placeholder";
var renderingReferences = Sitecore.Context.Item.Visualization.GetRenderings(Sitecore.Context.Device, true);
var renderingsInPlaceholder = renderingReferences.Where(r => r.Placeholder.EndsWith('/' + placeholder, StringComparison.OrdinalIgnoreCase));
var numberOfRenderingsInPlaceholder = renderingsInPlaceholder.Count();

更新:将占位符键的搜索从 IndexOf 更改为 EndsWith.

Update: Changed search for placeholder key from IndexOf to EndsWith.

这篇关于获取占位符中的组件数量，Sitecore的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！