从C＃将MySQl数据库中的Blob导入到PBX中

Question

我想从MySQl数据库导入图片，但是我不知道如何将Blob导入图片框。 我的图片是元素阅读器[3] ，但我不知道为什么我的参数无效。我尝试了许多不同的方法，但是我的Stream始终为空或参数无效。

long CurrentIndex = 0;
int Buffersize = 100;
long BytesReturned;
int positiontop = 80;
int positionl = 100;
byte[] bts = new byte[Buffersize];

while (reader.Read())
            {

FileStream fs = new FileStream(reader["Bild"].ToString(),FileMode.OpenOrCreate, FileAccess.Write);
                BinaryWriter writer = new BinaryWriter(fs);
                CurrentIndex = 0;
                BytesReturned = reader.GetBytes(3, CurrentIndex, bts, 0, Buffersize);

                while (BytesReturned == Buffersize)
                {
                    writer.Write(bts);
                    writer.Flush();
                    CurrentIndex += Buffersize;
                    BytesReturned = reader.GetBytes(3, CurrentIndex, bts, 0, Buffersize);
                }
                writer.Write(bts, 0, (int)BytesReturned);
                writer.Flush();
                writer.Close();
                fs.Close();

                PictureBox pbx = new PictureBox() { Size = new Size(40, 20), BackgroundImageLayout = ImageLayout.Stretch };
                pbx.Image = (Bitmap)((new ImageConverter()).ConvertFrom(bts)); //Exeption occurs here
    }