View picture from Access database

Posted on 2000-03-28
Last Modified: 2010-05-02
I use the following to view Access database text items:

MySQL = "SELECT * FROM tAddress "
Set dbtemp = OpenDatabase(dbname)
Set rst = dbtemp.OpenRecordset(MySQL)
     ID = rst("ID")
     Last = rst("Last")
     First = rst("First")
 List1.AddItem Last & First

My database has a picture in a picture field.  What code do I use to display that picture in an image box?
Question by:donb1

Expert Comment

ID: 2665292
Can pictureboxes be data bound? IF so, just set the datasource to the field in your database. Otherwise, hmm. I don't know. I've never tried that.

Expert Comment

ID: 2665300
You've stored picture as OLE object in MSAccess in LongBinaryFormat. This can be read using a DATAControl + ImageBox linked to that database-table-field and not by using DAO.
LVL 32

Expert Comment

ID: 2665323
Take a look at the AppendChunk / GetChunk example in VB Help. (at least in VB5 Help).  It shows an example using of displaying an image from a DB.

Note that loading a picture requires it to either be in a file, or in the Clipboard.  I can't find a way to put the data straight from a variable onto the clipboard, so you need to write a file out to do this.
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LVL 12

Accepted Solution

mark2150 earned 50 total points
ID: 2665626
As bhess1 said, you can't load direct from the database into the control. Thus you'll find it 2x faster to keep the image on disk and simply keep a pointer to the image file.

This Q comes up all the time and keeping images *in* a database is a bad idea. It bloats the database, slows retreival times, doesn't scale, and generally makes things cumbersome and fragile.

If you leave the images out on disk and just keep a pointer to the file you can have more images online than any single drive or server can hold and your total image store can greatly exceed what any database can hold.


Author Comment

ID: 2665700
  Sounds good, but How do I make a pointer?

Author Comment

ID: 2669067
mark2150's comment is more relevant, but I need to know how to make a pointer.
LVL 12

Expert Comment

ID: 2669117
Pointer is simply path to file; N:\IMAGES\ABC123.JPG or in UNC notation (preferred) \\Server\Drive\Dir\File.ext

Field is straight ASCII.

Control.LoadPicture trim("" & rs!pointer)


Author Comment

ID: 2669130
LVL 12

Expert Comment

ID: 2669200
No problem. This Q comes up all the time. I've designed image processing systems for Sheriff's Departments and Jails and they have hundreds of thousands of images being updated continuously. Keeping images IN the database simply isn't practical.


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