HttpPostedFile.InputStream プロパティ

アップロードされたファイルを示す Stream オブジェクトを取得し、そのファイルの内容を読み取る準備をします。

Public ReadOnly Property InputStream As Stream
[C#]
public Stream InputStream {get;}
[C++]
public: __property Stream* get_InputStream();
[JScript]
public function get InputStream() : Stream;

プロパティ値

ファイルを示す Stream 。

使用例

クライアントのファイル コレクションの最初のファイルの内容をバイト配列に読み込んで、そのバイト配列を文字列にコピーする例を次に示します。

 
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
    

[C#] 
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();
    

[C++] 
HttpFileCollection* MyFileCollection;
 HttpPostedFile* MyFile;
 int FileLen;
 System::IO::Stream* MyStream;
 
 MyFileCollection = Request->Files;
 MyFile = MyFileCollection->Item[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 = String::Concat( MyString, __box(input[Loop1]));
    

[JScript] 
var myFileCollection : HttpFileCollection
var myFile : HttpPostedFile
var fileLen : int
var myString : String = ""
var myStream : System.IO.Stream

myFileCollection = Request.Files
myFile = myFileCollection[0]

fileLen = myFile.ContentLength
var input : Byte[] = 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(var i=0; i < fileLen; i++){
  myString = myString + input[i].ToString()
}

必要条件

プラットフォーム: Windows 2000, Windows XP Professional, Windows Server 2003 ファミリ

参照

HttpPostedFile クラス | HttpPostedFile メンバ | System.Web 名前空間