C # File Upload class, file stream, byte array, etc,

C # File Upload class, file stream, byte array, etc,

Using System;
Using System. IO;
Using System. Web;
Using System. Web. UI. WebControls;

Namespace DotNet. Utilities
{
/// <Summary>
/// File Upload class
/// </Summary>
Public class FileUp
{
Public FileUp ()
{}

/// <Summary>
/// Convert to a byte array
/// </Summary>
/// <Param name = "filename"> file name </param>
/// <Returns> byte array </returns>
Public byte [] GetBinaryFile (string filename)
{
If (File. Exists (filename ))
{
FileStream Fsm = null;
Try
{
Fsm = File. OpenRead (filename );
Return this. ConvertStreamToByteBuffer (Fsm );
}
Catch
{
Return new byte [0];
}
Finally
{
Fsm. Close ();
}
}
Else
{
Return new byte [0];
}
}

/// <Summary>
/// Convert to a byte array
/// </Summary>
/// <Param name = "theStream"> stream </param>
/// <Returns> byte array </returns>
Public byte [] ConvertStreamToByteBuffer (System. IO. Stream theStream)
{
Int bi;
MemoryStream tempStream = new System. IO. MemoryStream ();
Try
{
While (bi = theStream. ReadByte ())! =-1)
{
TempStream. WriteByte (byte) bi ));
}
Return tempStream. ToArray ();
}
Catch
{
Return new byte [0];
}
Finally
{
TempStream. Close ();
}
}

/// <Summary>
/// Upload a file
/// </Summary>
/// <Param name = "PosPhotoUpload"> Control </param>
/// <Param name = "saveFileName"> saved file name </param>
/// <Param name = "imagePath"> path of the saved file </param>
Public string FileSc (FileUpload PosPhotoUpload, string saveFileName, string imagePath)
{
String state = "";
If (PosPhotoUpload. HasFile)
{
If (PosPhotoUpload. PostedFile. ContentLength/1024 <10240)
{
String MimeType = PosPhotoUpload. PostedFile. ContentType;
If (String. Equals (MimeType, "image/gif") | String. Equals (MimeType, "image/pjpeg "))
{
String extFileString = System. IO. Path. GetExtension (PosPhotoUpload. PostedFile. FileName );
PosPhotoUpload. PostedFile. SaveAs (HttpContext. Current. Server. MapPath (imagePath ));
}
Else
{
State = "incorrect file type ";
}
}
Else
{
State = "the size of the uploaded file cannot exceed 10 MB ";
}
}
Else
{
State = "No File Uploaded ";
}
Return state;
}

/// <Summary>
/// Upload a file
/// </Summary>
/// <Param name = "binData"> byte array </param>
/// <Param name = "fileName"> file name </param>
/// <Param name = "fileType"> file type </param>
// ------------------- Call ----------------------
// Byte [] by = GetBinaryFile ("E: \ Hello.txt ");
// This. SaveFile (by, "Hello", ". txt ");
//---------------------------------------------
Public void SaveFile (byte [] binData, string fileName, string fileType)
{
FileStream fileStream = null;
MemoryStream m = new MemoryStream (binData );
Try
{
String savePath = HttpContext. Current. Server. MapPath ("~ /File /");
If (! Directory. Exists (savePath ))
{
Directory. CreateDirectory (savePath );
}
String File = savePath + fileName + fileType;
FileStream = new FileStream (File, FileMode. Create );
M. WriteTo (fileStream );
}
Finally
{
M. Close ();
FileStream. Close ();
}
}
}
}