SPListItem.File 属性

从文档库中获取由该项表示的文件。

命名空间：  Microsoft.SharePoint
程序集：  Microsoft.SharePoint（位于 Microsoft.SharePoint.dll 中）

语法

声明
Public ReadOnly Property File As SPFile
    Get
用法
Dim instance As SPListItem
Dim value As SPFile

value = instance.File

public SPFile File { get; }

属性值

类型：Microsoft.SharePoint.SPFile
一个表示的文件的对象。返回空引用（无 在 Visual Basic 中）文档库中，如果不存在该项目。File属性也会返回空引用（无 在 Visual Basic 中）如果项是一个文件夹，或如果项目没有位于文档库中，虽然不建议您在这些情况下调用此属性。

示例

下面的代码示例使用File属性来显示的文件名和签出状态共享的文档，其中项Title字段包含指定的值中的每个.xml 文件。

备注

For information about how to use Language-Integrated Query (LINQ) queries to retrieve list items in SharePoint Foundation, see Managing Data with LINQ to SharePoint.

using (SPWeb oWebsite = SPContext.Current.Site.OpenWeb("Website_Name"))
{
    SPList oList = oWebsite.Lists["Shared Documents"];

    string strSearch = "My Value";
    string strQuery = " <Where><And><Contains>" + 
        "<FieldRef Name='Title'/><Value Type='Text'>" + 
        strSearch + "</Value></Contains>" +
        "<Eq><FieldRef Name='File_x0020_Type'/>" +
        "<Value Type='Text'>xml</Value></Eq></And></Where>";

    SPQuery oQuery = new SPQuery();
    oQuery.Query = strQuery;

    SPListItemCollection collItemsRoot = oList.GetItems(oQuery);

    foreach (SPListItem oItemRoot in collItemsRoot)
    {
        if (oItemRoot.FileSystemObjectType == SPFileSystemObjectType.File)
        {
            Response.Write(SPEncode.HtmlEncode(oItemRoot.File.Name) + 
            " == " + oItemRoot.File.CheckOutStatus + "<BR>");
        }
    }

    SPListItemCollection collItemFolders = oList.Folders;

    foreach (SPListItem oItemFolder in collItemFolders)
    {
        oQuery.Folder = oItemFolder.Folder;

        SPListItemCollection collListItems = oList.GetItems(oQuery);

        foreach (SPListItem oListItem in collListItems)
        {
            if (oListItem.FileSystemObjectType == SPFileSystemObjectType.File)
            {
               Response.Write(SPEncode.HtmlEncode(oListItem.File.Name)+ 
                   " == " + oListItem.File.CheckOutStatus + "<BR>");
            }
        }
   }
}

Using oWebsite As SPWeb = SPContext.Current.Site.OpenWeb("Website_Name")
   Dim oList As SPList = oWebsite.Lists("Shared Documents")

   Dim strSearch As String = "My Value"
   Dim strQuery As String = " <Where><And><Contains>" & "<FieldRef Name='Title'/><Value Type='Text'>" & strSearch & "</Value></Contains>" & "<Eq><FieldRef Name='File_x0020_Type'/>" & "<Value Type='Text'>xml</Value></Eq></And></Where>"

   Dim oQuery As New SPQuery()
   oQuery.Query = strQuery

   Dim collItemsRoot As SPListItemCollection = oList.GetItems(oQuery)

   For Each oItemRoot As SPListItem In collItemsRoot
      If oItemRoot.FileSystemObjectType = SPFileSystemObjectType.File Then
         Response.Write(SPEncode.HtmlEncode(oItemRoot.File.Name) & " == " & oItemRoot.File.CheckOutStatus & "<BR>")
      End If
   Next oItemRoot

   Dim collItemFolders As SPListItemCollection = oList.Folders

   For Each oItemFolder As SPListItem In collItemFolders
      oQuery.Folder = oItemFolder.Folder

      Dim collListItems As SPListItemCollection = oList.GetItems(oQuery)

      For Each oListItem As SPListItem In collListItems
         If oListItem.FileSystemObjectType = SPFileSystemObjectType.File Then
            Response.Write(SPEncode.HtmlEncode(oListItem.File.Name) & " == " & oListItem.File.CheckOutStatus & "<BR>")
         End If
      Next oListItem
   Next oItemFolder
End Using

备注

Certain objects implement the IDisposable interface, and you must avoid retaining these objects in memory after they are no longer needed. For information about good coding practices, see Disposing Objects.

另请参阅

引用

SPListItem 类

SPListItem 成员

Microsoft.SharePoint 命名空间