HttpRequest.Files 属性

定义

命名空间:

System.Web

程序集:

System.Web.dll

获取采用多部分 MIME 格式的由客户端上载的文件的集合。

public:
 property System::Web::HttpFileCollection ^ Files { System::Web::HttpFileCollection ^ get(); };

public System.Web.HttpFileCollection Files { get; }

member this.Files : System.Web.HttpFileCollection

Public ReadOnly Property Files As HttpFileCollection

属性值

HttpFileCollection

表示客户端上载的文件集合的 HttpFileCollection 对象。 HttpFileCollection 对象的项属于 HttpPostedFile 类型。

示例

下面的代码示例显示集合中 Files 所有文件的名称。

int loop1;
HttpFileCollection Files;

Files = Request.Files; // Load File collection into HttpFileCollection variable.
arr1 = Files.AllKeys;  // This will get names of all files into a string array.
for (loop1 = 0; loop1 < arr1.Length; loop1++)
{
    Response.Write("File: " + Server.HtmlEncode(arr1[loop1]) + "<br />");
    Response.Write("  size = " + Files[loop1].ContentLength + "<br />");
    Response.Write("  content type = " + Files[loop1].ContentType + "<br />");
}

Dim loop1 As Integer
 Dim arr1() As String
 Dim Files As HttpFileCollection
 
 Files = Request.Files ' Load File collection into HttpFileCollection variable.
 arr1 = Files.AllKeys ' This will get names of all files into a string array.
        For loop1 = 0 To arr1.GetUpperBound(0)
            Response.Write("File: " & Server.HtmlEncode(arr1(loop1)) & "<br>")
            Response.Write("  size = " + Files(loop1).ContentLength + "<br />")
            Response.Write("  content type = " + Files(loop1).ContentType + "<br />")
        Next loop1

注解

仅当 HTTP 请求 Content-Type 值为“multipart/form-data”时，才会填充文件集合。