i am working a "image processing system" project in vb.net using the ms access2007.i have to browse by clicking a button and open a image to display its name to a text box and that image to picturebox.and after that i want to add,del and extract those images to the access database.i want to use datagridview control also.
View 1 RepliesI have following code retrieving image from access database (OLE object)and assigning it to pic ctrl.
Dim bite() As Byte = CType(dg1.SelectedRows(0).DataGridView("subdivisionimage", dg.SelectedRows (0).Index).Value, Byte())
[Code].....
how to retrieve image from access database?.. I've just finish retrieving data to the datagrid view. I want to retrieve also the image (also stored in the database as path inside the table where the data stored) in the picturebox. When i clicked the specific data in datagrid view, it will show preferred image to picturebox.
View 1 Repliesneed help in displaying image in picturebox in form load..im using vb 2008 and adodb
View 1 RepliesI am using a PictureBox to display images. I have SizeMode set to StretchImage. While this does indeed show the whole image, it is of coure stretched. Is there a way to prepare the image to be displayed so it will fit correctly in the PictureBox? I just want it displayed without distortion and within the box.
View 6 RepliesI have the following code below. I am reading a BLOB image from database, but when I try to display it in the picture box I am getting the 'Parameter is
Code:
Imports System.Drawing
Imports System.Drawing.Imaging
[code].....
I'm trying to do this :[URL]But using VB.Net instead of VB6.I run into a problem with WebBrowser1.Document.Body.createcontrolrange()
View 14 RepliesThe new issue is that the knife item gets added to the listbox, but when I click on it...the picture isn't displayed in the picture box, and the description isn't displayed in the rich text box. I have the image path and name correct. I have no idea why the description isn't going in the text box.
Code:
Public Class FormInventory
Private Sub FormInventory_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
'' this is all the code for the inventory knife.
If KnifeTaken = True Then
[Code] .....
Is there a way to convert an Image to Black and white before displaying it in a PictureBox? Or is there a way to make a PictureBox display color images in black and white?
View 1 RepliesIn my project I am using a camera to capture images. The images will be stored in a byte array. Now I want to display my images in byte array to picture box on my form. I am pasting the code bit below.
HTML
Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory"
(ByRef Destination As Byte, ByRef Source As Byte, ByVal Length As Integer)
Delegate Sub MyFrameHookerDelegate(ByVal FrameType As Integer,
ByVal row As Integer, ByVal Column As Integer,
ByRef lpImageAttribute As TIMAGEATTACHDATA, ByRef Buffer As Byte)
Public ImageBuf() As Byte
[Code] ....
I want to display the image from ImageBuf() to a picture box on my form.
How do i get this code to display my image using a database this is my code.
code
Private Sub Details()
Dim oleDBC As New OleDbCommand
Dim OLEDBDR As OleDbDataReader
con.Open()
[Code]...
Unable to cast object of type 'System.String' to type 'System.Drawing.Image'.
but if i use lblName.Text = (OLEDBDR.Item(1)) it will display the path to the image.?
I'm trying to retrieve an image from my access database and insert it into a picturebox using the following code.
PictureBox.Image = rs.Fields().Item(8).Value
but it throws the following error
Quote: Unable to cast object of type 'System.Byte[]' to type 'System.Drawing.Image'
I'm new in the vb.net world. The question I have is how to display an image which is in a access data base in a picturebox in visual basic(2010).
View 7 RepliesI tried to show the rows of the table I created. First I added a bindingsource object and selected my database and table. Then I added a textbox and set databinding>text to the item i wanted in the table. In the begining it worked but then it suddenly stopped working and even though I built the program again from scratch it no longer works.
View 1 RepliesI am programming with Access 2007 VB.net in Visual Studio 2010.I am trying to have my VB program read the database, extract the .bmp image, and assign it to a PictureBox on the fly (I am actually creating a Group on the fly and filling it with data from the database that are selected by my query. One of the fields is "image". All of my other fields are successfully transferring from the DB to the group box.) My problem is converting the OLE Object to a picture/image that I can assign to the PictureBox.I am using TableAdapters and queries set up in an .xsd.I have a database with an OLE Object field.Here is a code snipit of my database set up:
Dim ta AsNew dsWhiteboardTableAdapters.MonstersTableAdapter
Dim monsterList AsNewdsWhiteboard.MonstersDataTable
Dim monster AsdsWhiteboard.MonstersRow
[code]....
I have tried several ways of getting the image into my picturebox, all lead to errors.
I am using this to get image bytes from the database[code]...
Now how can I add this to PictureBox.image. I am having a lot of trouble retrieving the image and displaying it in the PictureBox.
The datatype is Image in sql database and i use this code to save image to db[code]...
Dim cmdstring As String = "SELECT A.ID, ProfileCategory, YearLevel, LastName,FirstName,MiddleName, Section,SchoolYear,StartTime,EndTime,Days,Laboratory, B.Image FROM ProfileInformation A JOIN Photo B ON (B.ID = A.ID) WHERE A.ID=" & lEmployeeID
[code].....
i'm trying to retrieve image from database to my picturebox. but ive got this error -onversion from type 'Byte()' to type 'Byte' is not valid.
I have successfully saved the image to an oracle database(11g) as BLOB datatype and I need to retrieve it to the picturebox but I keep getting "Operation is not valid due to the current state of the object" error.[code]...
View 5 RepliesI have inherited a database from somebody who has passed away & I have been asked to look after it.The data is in an mde file which i can use vb to display records i need to report on.In the database is a field for dob which is date/time structureThe date in the database is 23/jan/1874If I display Rs("BirthDate").value i get 23/01/74If I say Dim Bdate as date="#" & Rs("BirthDate"),value & "#" & display Bdate, I get the same
View 4 RepliesI have a picturebox on a form and I am trying to upload a image to database. My question is how to fit a image into a picturebox even though the size of image is bigger or smaller than that. If It is bigger than the picturebox, then how to get a scrollbar.
Below is my code.
Private Sub Button_Browse_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button_Browse.Click
With OpenFileDialog
.Title = "Choose a image"
.InitialDirectory = My.Computer.FileSystem.SpecialDirectories.MyDocuments
[Code] .....
i have created a table named students with photo as varbinary(max)
i have designed a form with two buttons(insert and retrieve) and a picture box on it
Under insert button:
Try
Dim st As
New FileStream(OpenFileDialog1.FileName, FileMode.Open, FileAccess.Read)
[Code]....
inserting image is no problem but when i retrive image in picturebox it gives i message as "invalid object name students"
1) Add a new record - I can currently add records text to access database, but not images.
2) Get the ID [URL]I'm not sure how to integrate this code into my code. I am stuck here.
3) Save the image in the filesystem using the ID as a filename - I can save the upload an image and save the image to a directory on my computer, but I am unable to name the image that of the ID of the access database.
4) Update the database to put the filename in the record you just created. - I am unable to do this as well (obviously).
Protected Sub SUBMIT_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles SUBMIT.Click
Dim custDb As Data.OleDb.OleDbConnection
Dim cmdInsertCustomers As Data.OleDb.OleDbCommand
[code]....
I have a form containing a listbox showing a list of image names. It's bound to the database table. When an image name is clicked it shows the image and imagename in a picturebox and textbox respectively. When no image is selected in the listbox, a new record can be inserted by browsing a new image in the picturebox by an openfiledialog, writing the imagename in the textbox and pressing the OK button. When an image is already selected, the record can be updated by pressing the same OK button. The data is saved into MSSQL Server 2005. Corresponding table fields are Keycode int autono, logoname nvarchar(50), logo image.Now the problem, when I insert a new data with an image everything goes fine but whenever I try to update an existing data with an image it throws an exception- 'A generic error occurred in GDI+.' at the following line- 'pic.Image.Save(ms, pic.Image.RawFormat)'. Surprisingly when I update an existing data without any image in the picturebox no exception is generated. I have crossed checked it and seems that the problem is just at one point- 'Updating the image from the picturebox'. My code to insert/update the data by OK button and to populate it by listbox doubleclick follows:
Code:
Private ms As MemoryStream
Private arrImage() As Byte
Private conn As SqlConnection
[code]....
I have a form containing a listbox showing a list of image names. It's bound to the database table. When an image name is clicked it shows the image and imagename in a picturebox and textbox respectively. When no image is selected in the listbox, a new record can be inserted by browsing a new image in the picturebox by an openfiledialog, writing the imagename in the textbox and pressing the OK button. When an image is already selected, the record can be updated by pressing the same OK button. The data is saved into MSSQL Server 2005. Corresponding table fields are Keycode int autono, logoname nvarchar(50), logo image.Now the problem, when I insert a new data with an image everything goes fine but whenever I try to update an existing data with an image it throws an exception- 'A generic error occurred in GDI+.' at the following line- 'pic.Image.Save(ms, pic.Image.RawFormat)'. Surprisingly when I update an existing data without any image in the picturebox no exception is generated. I have crossed checked it and seems that the problem is just at one point-
[Code]...
I have a form containing a listbox showing a list of image names. It's bound to the database table. When an image name is clicked it shows the image and imagename in a picturebox and textbox respectively. When no image is selected in the listbox, a new record can be inserted by browsing a new image in the picturebox by an openfiledialog, writing the imagename in the textbox and pressing the OK button. When an image is already selected, the record can be updated by pressing the same OK button. The data is saved into MSSQL Server 2005. Corresponding table fields are Keycode int autono, logoname nvarchar(50), logo image.Now the problem, when I insert a new data with an image everything goes fine but whenever I try to update an existing data with an image it throws an exception- 'A generic error occurred in GDI+.' at the following line- 'pic.Image.Save(ms, pic.Image.RawFormat)'. Surprisingly when I update an existing data without any image in the picturebox no exception is generated. I have crossed checked it and seems that the problem is just at one point- 'Updating the image from the picturebox'.My code to insert/update the data by OK button and to populate it by listbox doubleclick follows:
[code]...
I am having trouble in browse & then save an image to SQL Server.ALso I want to retrieve that image.This is the code to browse image & show it in PictureBox1 Control
Public Sub SelectImage()
With OpenFileDialog1
'.InitialDirectory = "C:"
[code]....
But don't know how to pass it to image parameter .Also is there any way that I can save image on Local drive & just save the url /location/name in database?
I am trying to convert my DB field OLE Object as Bitmap into a Picture Box. In my DataBase there are 2 fields
1) Text
2) OLE Object (bitmap)
I am having problems trying to get the MS Access Database to equal the picture box. What I have so far is
Private Sub FindChemical()
Dim intDataBaseIndex As Integer
Dim rowIndex As Integer
Dim FieldRow As DataRow
[Code]....
I am trying to 1) write code in VB2010 that will get a JPG image from a Access Database field and write the image to a PictureBox 2) write code which will write a JPG file to an Access Database field. I have already sucessfully coded this in VB6, without fully understanding what I was doing.
Browsing the various forum's I have come across a few discussions on this subject, but due to my complete amerture status I don't seem to be able to follow the logic.
Below is the VB6 code
Writing JPG file to DataBase:
Dim bytBlob() As Byte
Dim intNum As Integer
[Code]....
I have a form in vb.net 2005 with a datagrid and picturebox, when I click an item in the datagrid dgProducts I want to display the Picture which is stored in an access database in binary format inside the picturebox pbProduct. This is the code I have inside the datagrid click:
pbProduct.Image = Nothing
Dim x As Integer = dgProducts.CurrentRowIndex
Dim dt As DataTable
Dim drow As DataRow
[code]...
I have imported the system.io and system.data.oledb at class level and I hav generated this code from what I can find in forums online, but I get "Parameter is not valid" and no more help than that...
I drew an image in a picturebox with the image height as picturebox height and image width as picturebox width. The image is placed somewhere on the center of the picturebox. My intention is to scale the image to fit to the picturebox.
View 2 Replies