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Fero45 asked on

Collection of picture boxes; how to store image information?

Hi experts

I have a collection of picture boxes and to catch MouseHover event, I use this:

 Private Sub Generic_MouseHover(ByVal sender As System.Object, ByVal e As System.EventArgs) _
      Handles pic1.MouseHover, pic2.MouseHover, pic3.MouseHover, .....etc ...  pic120.MouseHover

        Dim control As PictureBox
        control = CType(sender, PictureBox)

        x = control.Location.X
        y = control.Location.Y

End Sub

I use ListBox to select a collection of dresses, so a particular PictureBox holds a different image every time. I store x and y as shown above, but how do I store the image information, namely its file name (xxxx.jpg) or the whole path?

Thanks

Fero
Visual Basic.NET

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Last Comment
SStory

8/22/2022 - Mon
ASKER CERTIFIED SOLUTION
Mike Tomlinson

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ASKER
Fero45

to Idle_Mind

if I use pic1.Tag = 'xxx"

this would mean I have to attach a tag to every picture before it is loaded. However when I move new images to the folder and them show them in PictureBoxes, it would be too much time. We have more than  a 1000 images.

I thought there could be something like, e.g.
??? string = control.image(ImageLocation(Path) ???

Fero
SStory

I'm not sure you question, but it sounds like you may not know that you can store anything in the Listbox items. They are objects.

That being said, create a class
class MyListBoxItem
    'put any member variables here

    'property accessors here

    'constructor here

    override function Tostring as string
         return 'whatever string you want to return from here, will be displayed in the list box
                    'but you can get the selected items in the listbox use
                     Ctype(lstDresses.SelectedItem,MyListBoxItem)
                   
                    'use the above ctype and then access any of your objects properties to get access to the  filename which you would have stored when you popuplated it

    end function

end Class


IS this what you were looking to do?
SStory

Well, there is no way that anyone can view the 1000 images at a time.
Perhaps if you are determined to do it in pictureboxes  you need to set up a limited number of them and a vertical scrollbar and based on positioning, display the correct 50 at a time or whatever...you'd still need tags.

what I suggested above would work for a listbox.

However you might want to use a ListView control.  You can show the pictures, or choose to use Ownerdrawn to draw them however you want to in the ListView.  It was built to show things--like Explorer does on the right side.

In that case, create your own ListViewItemClass

class MyListViewItem
       inherits ListViewItem 'I'm not sure the entire path... system.forms.ListViewItem perhaps
end class

The above gives you default listview item stuff.
then you add a constructor
sub New(filepath as string)
      'this sub can the store the filepath in the object,
      'open it and do whatever you want to with it
      'it could even store the image inside of itself--however memory may or may not permit that
      'if it doesn't i.e. too many images... then your drawing method might need to see which ones are  
      'visible and load those..and then next N items pictures into memory and free ones from the others or  
      'something of this effect
end sub
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William Peck
ASKER
Fero45

to SStory

List Box  contains collections of Flower Girl, Prom, Bridal gowns, Mothers, etc. List Box Selection populates PictureBoxes; every time a different image. Mouse Hover should store the image file name (usually a four digit number, eg. 2378.jpg) , go to the database and show a complete info about the dress (colors available, fabric, price, season)
ASKER
Fero45

.....
images of a certain collection are shown as thumbnails for people in customer service area. Mouse Hover should give them quick info when they are on the phone.

Probably the idea of attaching a TAG to every image when the collection is populated is the best solution

ASKER
Fero45

Yes, TAG is is best way. Thanks for a good solution
Frank
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SStory

Well... a listbox for category and a listview for displaying the images would probably work well too...with your own listviewitem...

since the question is closed... I will say no more.