復制代碼 代碼如下:

byte[] fileData = this.FileUpload1.FileBytes;

復制代碼 代碼如下:

代碼
public byte[] returnbyte(string strpath)
{
 // 以二進制方式讀文件
    FileStream fsMyfile = new FileStream(strpath, FileMode.OpenOrCreate, FileAccess.ReadWrite);
// 創建一個二進制數據流讀入器，和打開的文件關聯
    BinaryReader brMyfile = new BinaryReader(fsMyfile);
// 把文件指針重新定位到文件的開始
    brMyfile.BaseStream.Seek(0, SeekOrigin.Begin);
   byte[] bytes = brMyfile.ReadBytes(Convert.ToInt32(fsMyfile.Length.ToString()));
// 關閉以上new的各個對象
    brMyfile.Close();
   return bytes;
}

復制代碼 代碼如下:

public static byte[] Getbyte(Image img)
{
    MemoryStream stream = new MemoryStream();
    img.Save(stream, ImageFormat.Jpeg);
    byte[] mydata = new byte[stream.Length];
    mydata = stream.ToArray();
    stream.Close();
    return mydata;
 }

復制代碼 代碼如下:

private System.Drawing.Image getImageDataFromOracle()
{
string sql = "select IMGDATA from t_img where imgID=100";
string strconn = System.Configuration.ConfigurationManager.ConnectionStrings["ConnectionStringForOracle"].ToString();
OracleConnection oraConn = new OracleConnection(strconn);
OracleCommand oraComm = new OracleCommand(sql, oraConn);
oraConn.Open();
byte[] fileData = (byte[])oraComm.ExecuteScalar();
oraConn.Close();
System.IO.MemoryStream ms = new System.IO.MemoryStream(fileData);
System.Drawing.Image img = System.Drawing.Image.FromStream(ms);
return img;
}

復制代碼 代碼如下:

 protected void Page_Load(object sender, EventArgs e)
{
　　byte[] b_logoImg = (byte[])dt_channelImg.Rows[0]["LogoImage"]; //得到byte[] 數組，這里只是舉個例子
 　　if (b_logoImg.Length > 0)
　　 {
　　　　System.Drawing.Image logoImg;
　　　　MemoryStream ms = new MemoryStream(b_logoImg);
　　　　Response.Clear();
　　　　Response.ContentType = "image/gif";
　　　　Response.OutputStream.Write(b_logoImg, 0, b_logoImg.Length);
　　　　Response.End();
　　}
}