Implement a picture in C #. Byte[] and base64string The conversion method of the detailed

The following small series for everyone to bring a picture in C #. Byte[] and base64string conversion methods. Small series feel very good, now share to everyone, also for everyone to make a reference. Let's take a look at it with a little knitting.

In C #

Picture to byte[] and then to base64string conversion:

Bitmap bmp = new Bitmap (filepath);  MemoryStream ms = new MemoryStream ();  Bmp. Save (MS, System.Drawing.Imaging.ImageFormat.Gif);  byte[] arr = new Byte[ms. Length];  Ms. Position = 0;  Ms. Read (arr, 0, (int) Ms. Length);  Ms. Close (); string   pic = convert.tobase64string (arr);

Base64string to byte[] again to the conversion of the picture:

byte[] imagebytes = convert.frombase64string (pic);//Read in MemoryStream object MemoryStream MemoryStream = new MemoryStream ( Imagebytes, 0, imagebytes.length); Memorystream.write (imagebytes, 0, imagebytes.length);//turn to image image = Image.fromstream (MemoryStream);

Now in the database development: The picture is generally stored in a CLOB: storage base64string

BLOB: Storage byte[]

Generally recommended for use with byte[]. Because pictures can be converted directly to byte[] stored in the database

If you use base64string you also need to convert from byte[] to base64string. More wasted performance.