Show An Access Attachment In A Picture Box?
May 16, 2011
I am trying to get a access picture attachment to show in an vb.net picture box. at start up, i add an attachment field to the database, and add pictures to the database in jpg form. then connect the database to vb project using the general vb settings. The connection is sucessful, I then add a picture box control to the form along with changing the attachment field to a picture box setting at this point every thing should be good. However, when i go to run the program the picture box remains
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Dec 2, 2011
I am trying to get a access picture attachment to show in an vb.net picture box. At start up, I add an attachment field to the database, and add pictures to the database in jpg form. I then connect the database to vb project using the general vb settings. The connection is successful, I then add a picture box control to the form along with changing the attachment field to a picture box setting at this point every thing should be good. However, when I go to run the program the picture box remains empty.
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Jan 29, 2012
I'm trying to create a database of all the Magic The Gathering cards I have in inventory and I'd like to have a picture preview of the card in my program. In access I've created a table and for each row I've attached an image of the card. Now I can't get the image to display in Visual Studio. The picture type is the correct format and databindings are all correct. I just can't seem to get the picture to preview as I go down the list in my datagrid.So far I haven't written any code. I've built the application in design view just dragging items from my data sources window.
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Dec 3, 2010
i use Ms Access 2010 DB as Backend and Programing using VB.NET COdeNarmada
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Oct 6, 2011
I am working on an asp.net project in VS2010 using vb.NET (not VBA) designing an interface to allow a user to upload a file to an access 2007 table attachment field. My understanding is that in order to interface with a table with an attachment field you
must use DAO to connect to the database so that you can expose the attachment field properties. When I try to open the DAO recordset I am getting "COM exception was unhandled by user code" with a message stating "Too few parameters. Expected 3". The error code is -2146825227 and the stacktrace message is "at dao.Database.OpenRecordset(String Name, Object Type, Object Options, Object LockEdit)"
[Code]...
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Dec 16, 2011
I'm opening this discussion up primarily because I felt that it was inappropriate that Samir Ibrahim and I had hijacked another thread by turning it into a collaborative development thread. This thread will also hopefully serve as a searchable reference for those few who actually make an attempt to search the forum for information before posting a question. For reference the original thread I mentioned is [URL]
This thread is meant to be a repository for our continued collaboration on trying to find a way to update the attachment field using the OLEDB class. Samir believes that he is close to cracking the secret code.:)
Attachment retrieval and updating is a fairly trivial task using the Microsoft Access Database Engine. It is also fairly trival to retrieve the attached files using OLEDb as well. The difficulty comes when trying to add or delete an attachment with OLEDB.
The attachment field is actually a record set where each record consists of six fields. One of these fields is the data field that contains the binary file data. According to the documentation, Access will compress certain file. It appears that compression/decompression is handled behind the scenes so to say and what you are present with is sequence of bytes. The data field consists of sequence of header bytes followed by the actual data. The first four bytes define an offset to the start of the data. One thing that we are trying to determine is the meaning of other bytes in the header.
I have uploaded a sample project at: [URL]
This project is by no means a finished product. It is hard code to retrieve the first record from the included Access database.
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Jan 31, 2012
I'm having a problem that I've spent all day researching to try and figure out. It seems that the 'Attachment' type in an Access 2007 DB file is stored as three seperate pieces of data in the one field. If you open up the Relationships view, you can see it in the table itself.
I'm trying to do a simple DVD movie database to keep track of everything I have, and who I've loaned things out to. I'm doing this in part to further my education in VB.NET and to figure out some of the things involved with interacting with databases. I haven't actually written any code yet, read on and you'll understand what's going on.
I've got an Attachment field setup in the database to hold a picture of the movie poster or DVD cover art or something like that to help identify the film, and I named it 'Art' of type 'Attachment' since that will hold an image. Looking at the table in Access I see that 'Art' is broken down into three entries: Art.FileData, Art.FileName, Art.FileType. I'd like to be able to pull the filename and file type and display those on the form, but we'll get to that later.
When I use a drag-n-drop gridview of the database into my blank VB form, the Art field just shows the filename, in my case it's 'screenshot.png' since I just dumped a screen shot in as a test. So, the gridview on the form will see the field and display the filename, which is fine. If I do another Windows form and drag-n-drop a Details View (instead of the grid view), and have the Art field in the table set to a PictureBox (in the Data Sources view, you can highlight a field and then designate it as text or picture
or date or whatever), I end up with a blank box instead of my image.
I haven't typed any code into any of the forms at this point. I'm still in the Designer trying to get the layout and stuff the way I want it, afterwhich I'll start adding buttons and methods and such to search for things, print out a nice list of the films in the database (with and without pictures) and be able to sort out a list of who I've loaned things to (like an overdue book list). But so far, by just dragging and dropping from the Data Sources into the form, Studio automatically creates the dataset and bindings and such to read from the database file, and I can see all of my test data *except* for the image in the PictureBox (it's just blank/empty).
So, if you want to see what's happening and sort this out, then you need to do the following:
1. Create an access database with a table, that table having at least one field of type 'Attachment'
2. put a picture/image into that field as a first entry
3. in Studio (or in my case Express), create a new project, which'll have a blank form in it by default
4. create your database connection by using the 'Add new data source...' wizard for your Access DB file
5. from the Data Sources, expand the table views and change the attachemnt field from the default of TextBox to a PictureBox (you may have to Customize the types to get PictureBox to show up)
6. drag and drop that whole table onto your form, which will automatically create form elements to display the data and stuff
7. Run it, you'll see the problem.
I have no idea what I need to look at or edit or change to get this PictureBox to display the image from the database. Like I said before, if I leave the type set to the default of TextBox in the Data Sources view, then the field will display the filename of the file stored in that field of the database. Having not typed any code yet, I have nothing that I've done that I can edit other than the automatically created stuff that Studio did when I dragged the table into the form.
Being completely unfamiliar with how VB.NET wants to talk to a database (SQL server, Access or otherwise) I decided to create this little program to learn how to do it. But I ran into this problem and need a little help. What I'm looking for is what I need to change in the bindingSource or TableAdapter or TableAdapterManager or BindingsNavigator or whatever resource is binding the fields on the form to the entries in the database so that the PictureBox will get the part of my 'Art' field that actually
holds the image, not the filename or the type. I don't know how to do that, and that's what I'm trying to learn. What I would like to know is how to both get the image to display in the PicutreBox and pull the filename for that image as well to display beneath it or something in the form.
And before someone starts complaining about writing the whole program for me, I must say this is one element of a large personal project and if you read my entire post here you'll see that there are many other elements that will eventually go with it. I just need some help getting this one thing to work. Multiple web searches and such point to a variety of different approaches, many of
which I've tried to implement but nothing has worked. I'd like to do this entirely in .NET with no other dependencies if at all possible, but some of what I've seen so far today suggests using Interop and other things to make this work, but those haven't panned out for me either as of yet. My ultimate goal with this whole program is to have one (albeit probably large) executable file that will encompass the entire program, and to have it all work. After that, then I'll look into things like creating my own modules
and DLL's and such to thin it out, but I'm not even close to that point yet.
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Aug 1, 2011
I have multiple documents stored in Attachment data type in Access database. UsingDataReader, I need to read multiple attachments along with their file name and store them on the file system
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Mar 16, 2010
Just playing around with VB and have made a program for playing "pairs". The program displays lots of face down cards, then the user can click on them to reveal their face and try to find pairs. This is done by hiding or showing the "card reverse" picture
If the user finds a pair, the cards should stay face up, however if they do not match, they should be returned to facing down.
The pictures need to be loaded dynamically through an array...
The code I have so far is as follows...
Form1...
Code:
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[Code].....
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Mar 16, 2010
Just playing around with VB and have made a program for playing "pairs". The program displays lots of face down cards, then the user can click on them to reveal their face and try to find pairs.If the user finds a pair, the cards should stay face up, however if they do not match, they should be returned to facing down. This needs to be done by hiding or showing the "reverse of card" picture..[code]
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Jan 9, 2009
I'm trying to make a game, pretty much a game like memory where you flip over a card and find the match. But because of how many buttons I need I was wondering if it was possible to show the picture in a message, all the pictures are funny motivational posters from photobucket so I want the player to be able to read the dialog. I've already tried doing
Dim picture as string = "1.jpg"
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
MessageBox.Show(picture)
End Sub
but when I click the button nothing happens and yes the name of the picture in my bin folder is "1". I am using Microsoft Visual Basic 2008 Express Edition.
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May 16, 2009
Save And show picture in vb from database?
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Nov 2, 2009
I am making a picture viewer in vb.net. When I click a button to show images from a listview it does not work without the msgbox! I included code
Sub shows()
Dim k, s As String
Dim i, j, m As Integer
''' When I use this, it doesnt work!!!
'Dim cbz As New Thread(AddressOf shows)
'cbz.Start()
[Code] .....
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May 31, 2012
I would like to show Picture on Picturebox from (DataGridView_CellMouseUp)???
[Code]...
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Jul 12, 2010
I'm having some problem. I try to create a 16bpp grayscale bitmap image and show in a picture box.
I used the following code
bmp = New Bitmap(xpixels, ypixels, Imaging.PixelFormat.Format16bppGrayScale)
dim bmp = New Bitmap(xpixels, ypixels, Imaging.PixelFormat.Format16bppGrayScale)
PictureBox1.Image = bmp
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Dec 11, 2011
How do you make the image in a picturebox vanish when you change an option? I have tried a few different ways that i have seen but none have worked. I have it set so when i change an option in a listbox it will change the picture and data in other controls, however one option in the listbox has no data to fill in those controls and so gets left blank. However when i click on that option right now the images that were in the picturebox before get left behind until i click on another option that has a picture. So how do i remove the picture from the box?
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Mar 19, 2011
i have a dataset that return 3 column ID as integer Picture as Image and Name as string.i have a combobox that i need to databind it and i need this combobox show Picture and than Name as DisplayMember and ID as ValueMember.i find something in internet that show how add image in combobox but i don't know how can i databind the combobox with image.
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Jan 19, 2010
I have a access database connected to a project in Visual Basic Express 2008.This is a database for items I have.I my database, when I change reccord from one item to another, I try to have a picturebox to display acutal picture for the item.
Dim NKnr As ????
If NKnr = txtNKnr Then
picFrimerke.Image = System.Drawing.Image.FromFile("C:Program FilesFrimBas
knrpic"txtNKnr".jpg")
the value in "txtNKnr" referer to a picture with the same name in given folder.
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Nov 30, 2010
I have a form with two group boxes. The first one has two radio buttons and the second has four. The user chooses one button from the first group box and one button from the second which gives me eight selections and I would like a different picture for each selection.
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Mar 6, 2012
i have an input signal that can be time variant.i need a chart that can show sin ,cos , other signal shape such as this picture?
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Dec 6, 2011
I have a list view box that shows a few image files and when i click them i want the image to show in the picture box but i am unable to figure out how to do so i have tried the following code with no success,pbImage.Image = Image.FromFile(ListView1.Text)when i try this code i get an error saying,
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Aug 30, 2009
I can't tell why when my picture box is to show an image the picture box moves altogether, I feel like it might be moving toward the checkbox which I have controlling the visibility of my picture box. That check box doesn't work as it is supposed to either. Everything else works just fine.
[Code]...
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Dec 6, 2009
I'm working on a program that allows a person to click on some text and it will read the text (play a wav file) using My.Computer.Audio.Play. The program calls a procedure called PlayAudioClip which uses AudioPlayMode.WaitToComplete because in some cases two wav files will be played one after the other(two languages). During the playing of the wav files I want to show a visible indicator that there is audio. I've got a picturebox called "AudioPic" who's image property points to a picture in my.resources. THe visible property of AudioPic is set to false when the form loads When the user clicks on the text my program should display the image (Visible=true), play the clip (or two) and then hide it again.
It seems that the picture is not completely loaded before the wav file plays and since I have it set to WaitToComplete it stops the loading until the wav file has played, at which time the program hides it.
How can I force it to finish showing the picture before playing the clip?[code]...
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Oct 17, 2009
I have this Slide show on a weppage the picture goes from right to left, but now i want to make the same slide show in a windows form, i have look at some other Topigs and can see that i maybe can
use a timer, can someone help me here, The picture shall come in one Row and from right to left
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Feb 4, 2012
When i create a windows form in VB, i want to have a picture box on my form, but in design view it shows the box, but when you run the program it doesn't show it. I want it to show the box so when you run the program it will show the box and you can click on the box and you can add the photo you want on your form and then print the form or save it.
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Sep 3, 2010
I want to show (display) a form or even maybe a panel while the user is hovering over a PictureBox.How would these events work?
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Mar 26, 2010
I have a form with a web browser on it.
The web browser has a captcha on it.
I want the captcha to be shown on the form iteself.
Maybe in a picturebox or something. But it needs to be the current picture on the web browser.
I have looked around and I couldn't find anything that could achieve this.
[URL]
Or if this is possible, could I add the image "captchaSF_Image" to the clipboard and then paste it in the picturebox1.image? If so how could this be done?
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Aug 25, 2009
I've got Button and Listbox.. Now i want to know how can i code the button to show picture exactly for selected item from the listbox.. i tried:
Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
PictureBox1.Show = ListBox1.SelectedItem
End Sub
And it doesn't works.. i want.. picturebox to show special picture for each selected item from the list box...
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Aug 29, 2010
I Want A Picture Viewer With this Features : Editor, Zoom, Slide Show
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Dec 24, 2008
i have a form where a user can upload images into access data base..but when i insert this images into my access data base it works fine..but now the problem occurs when i want to retrieve the stored images from my database to my picture box in doing so..i noticed that the images are stored in long binary file format in the access data base to as to how to convert this binary image file into jpeg file so that i can display images stored into my data base in to my picturebox...when i used ctype method it gave me an error saying cannot convert byte() into system.image...so now my question is as to how can we convery this binary file back to its original jpeg format..
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