c# - Sitecore 以编程方式访问布局定义

Question

我想访问一个项目的布局定义，以便我可以访问添加到该项目的渲染，然后访问附加到所述渲染的数据源。我似乎找不到办法做到这一点。我能做的最好的事情就是访问 __renderings 字段，但我随后发现这将访问原始渲染定义项，而不是存储在设计布局中的特定数据源实例。

这是在 Sitecore 7.5 MVC 上

如果有帮助，这就是我尝试做的:

// Get the default device
DeviceRecords devices = item.Database.Resources.Devices;
DeviceItem defaultDevice = devices.GetAll().Where(d => d.Name.ToLower() == "default").First();

// Get the rendering references for the default device
Sitecore.Data.Fields.LayoutField layoutField = item.Fields["__renderings"];
Sitecore.Layouts.RenderingReference[] renderings = layoutField.GetReferences(defaultDevice);

// Get the required renderings
RenderingItem headerRenderingItem = null;
RenderingItem aboutRenderingItem = null;

foreach (var rendering in renderings)
{
    if (rendering.Placeholder == "headerPlaceholder")
        headerRenderingItem = rendering.RenderingItem;
    else if (rendering.Placeholder == "/aboutSectionPlaceholder/textPlaceholder")
        aboutRenderingItem = rendering.RenderingItem;
}
Assert.IsNotNull(headerRenderingItem, "no header rendering item found");
        Assert.IsNotNull(aboutRenderingItem, "no about rendering item found");

// Get their datasources
ID headerDatasourceId = ID.Parse(headerRenderingItem.DataSource); // The datasource string is null as it is accessing the datasource definition item itself
ID aboutDatasourceId  = ID.Parse(aboutRenderingItem.DataSource);  // Same as above

Answer 1

RenderingReference.RenderingItem 引用/layout 部分中的呈现项。您可以做的是使用 RenderingReference.Settings.Datasource。

所以你的代码看起来像这样:

foreach (var rendering in renderings)
{
    if (rendering.Placeholder == "headerPlaceholder")
        headerRenderingDatasourceId = rendering.Settings.Datasource;
    else if (rendering.Placeholder == "/aboutSectionPlaceholder/textPlaceholder")
        aboutRenderingDatasourceId = rendering.Settings.Datasource;
}

Item headerRenderingDatasourceItem;
if (!string.IsNullOrEmpty(headerRenderingDatasourceId)
    headerRenderingDatasourceItem = item.Database.GetItem(headerRenderingDatasourceId);