HttpPostedFile.InputStream 屬性

定義

命名空間:

System.Web

組件:

System.Web.dll

取得 Stream 物件，該物件指向所上傳的檔案，以準備讀取該檔案的內容。

public:
 property System::IO::Stream ^ InputStream { System::IO::Stream ^ get(); };

public System.IO.Stream InputStream { get; }

member this.InputStream : System.IO.Stream

Public ReadOnly Property InputStream As Stream

屬性值

Stream

指向檔案的 Stream。

範例

下列程式碼範例示範如何將用戶端檔案集合中第一個檔案的內容讀取到位元組陣列，然後將位元組陣列複製到字串。

using System;
using System.Web;
using System.Web.UI;

public class Page1: Page
{
 protected string MyString;
 private void Page_Load(Object sender, EventArgs e)
 {
   HttpFileCollection MyFileCollection;
   HttpPostedFile MyFile;
   int FileLen;
   System.IO.Stream MyStream;

   MyFileCollection = Request.Files;
   MyFile = MyFileCollection[0];

   FileLen = MyFile.ContentLength;
   byte[] input = new byte[FileLen];

   // Initialize the stream.
   MyStream = MyFile.InputStream;

   // Read the file into the byte array.
   MyStream.Read(input, 0, FileLen);

   // Copy the byte array into a string.
   for (int Loop1 = 0; Loop1 < FileLen; Loop1++)
     MyString = MyString + input[Loop1].ToString();
 }
}

Imports System.Web
Imports System.Web.UI

Public Class Page1: Inherits Page

 Protected Loop1 As Integer
 Protected MyString As String

  Protected Sub Page_Load(sender As Object, e As EventArgs)

    Dim MyFileCollection As HttpFileCollection
    Dim MyFile As HttpPostedFile
    Dim FileLen As Integer
    Dim MyString As String
    Dim MyStream As System.IO.Stream
 
    MyFileCollection = Request.Files
    MyFile = MyFileCollection(0)
 
    FileLen = MyFile.ContentLength
    Dim Input(FileLen) As Byte
 
    ' Initialize the stream.
    MyStream = MyFile.InputStream
 
    ' Read the file into the byte array.
    MyStream.Read(input, 0, FileLen)
 
    ' Copy the byte array into a string.
    For Loop1 = 0 To FileLen-1
      MyString = MyString & Input(Loop1).ToString()
    Next Loop1
    
 End Sub

End Class