获取占位符Sitecore中的组件数 [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.

无论如何要获得已添加到占位符的组件数量，还是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?

通常我会使用一个简单的for循环并设置属性，但因为它的占位符的组件不是一个选项。

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：从 IndexOf 到 EndsWith 。

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