Binary data saves the picture to the database and reads the database binary data display picture

I. Browse pictures

OpenFileDialog ofd = new OpenFileDialog ();
Ofd. InitialDirectory = @ "E:\";
Ofd. Filter = "Image Files (*. bmp;*. jpg;*. GIF) |*. bmp;*. jpg;*. Gif| All Files (*. *) |*.* ";
Ofd. Restoredirectory = true;

if (OFD. ShowDialog () = = DialogResult.OK)
{
Picaddress = ofd. FileName;
Image imge = Image.FromFile (picaddress);
Bitmap BM = new Bitmap (Imge, Picbox.width, picbox.height);
Picbox.image = BM;
}

Two. Save the image to the database

Read the database and get the field where you want to save the picture, convert the picture to binary data and save it to the database

byte[] pic = getcontent (the path to the picture);
Comyindfo.logo = field Saved by pic;//database

<summary>
Convert a picture's file into binary data saved to a database
</summary>
<param name= "filepath" ></param>
<returns></returns>

public static byte[] GetContent (string filepath)//Convert files under the specified path to binary code for transfer to database
{
FileStream fs = new FileStream (filepath, FileMode.Open, FileAccess.Read);
byte[] Bydata = new Byte[fs. length];//creating a new byte array to hold the file stream
Fs. Read (bydata, 0, bydata.length);//Reading file stream
Fs. Close ();
return bydata;
}

Three. Reading binary data from a database and displaying pictures

byte[] Imagebytes = Item. logo;//read a field from a database
MemoryStream ms = new MemoryStream (imagebytes);
Bitmap bmpt = new Bitmap (MS);
pictureBox1.Image = bmpt;

Binary data saves the picture to the database and reads the database binary data display picture