events - 获取我的文档父共享点文件夹

Question

我有一个包含文档和文件夹的共享点文档库（作为新的内容类型引入），并且我在文档上添加了一个事件接收器，仅添加到我的文件夹中，以便检索我新添加的文档的父文件夹，我尝试以这种方式编写但它似乎效果不佳：

public override void ItemAdded(SPItemEventProperties properties)
{
    base.ItemAdded(properties);

    //getting the item (document) newly added to my content type folder
    SPListItem myItem = properties.ListItem;
    //getting the folder containing my doc
    SPFolder myFolder = myItem.File.ParentFolder;
    //other code on my SPFolder
}

Answer 1

我使用自定义扩展方法：

SPFolder myFolder = myItem.GetParentFolder();
// TODO Test myFolder for null, because it could happen in edge cases

实施如下：

public static SPFolder GetParentFolder(this SPListItem spListItem) 
{
    SPFolder parentFolder = null;
    // Try to get it from folder
    if (spListItem.Folder != null)
    {
        parentFolder = spListItem.Folder.ParentFolder;
    }
    // Try to get it from file
    else if (spListItem.File != null)
    {
        parentFolder = spListItem.File.ParentFolder;
    }
    // At last get file - it is more time/resource consuming
    else
    {
        SPFile spFile = spListItem.Web.GetFile(spListItem.Url);
        if (spFile != null)
            parentFolder = spFile.ParentFolder;
    }
    // Can be null
    return parentFolder;
}

Answer 2

sharepoint.stackexchange 的这个片段帮助了我：

SPFile file = properties.ListItem.Web.GetFile(properties.ListItem.Url);
SPFolder fileFolder = file.ParentFolder;

https://sharepoint.stackexchange.com/questions/7090/get- contains-folder-list-for-spfile-item