Here is the code I used to store an image in my database (SQL Server 2008 R2) using VB 2010. The images get stored but the problem is the clarity of the image is lost when retrieved and seen in a picture box.
Public Function InsertUpdateImage(ByRef _SqlConnection As System.Data.SqlClient.SqlConnection, ByVal _Image As System.Drawing.Image, ByVal _ImageFormat As System.Drawing.Imaging.ImageFormat) As Integer
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I'm trying to store three images from a form (PictureBox's) into a SQL Database (MSSQL2008) The below does what I want but is clearly inefficient. Any pointers on what to change to improve this?
Private Sub SaveImages()
Dim ConStr As String = "Data Source=SERVERSQL2008;Initial Catalog=NorthPole;Integrated Security=True"
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I basically need to hold a lot of data - the structure is that of a five dimensional array holding integers.What would be the most efficient way of storing this in a file (I was thinking of XML - your opinion?) that would also be quick to extract.
View 3 Repliesis there a way in storing image and retrieving images using ms access and display in picture box randomly or just like a slideshow?which slides form left to right?or vice versa..i have some codes here but i does not display.
str = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:Program FileschuloaderChu'sLoadComputeChu'sLoadComputeinReleaseImagebank.accdb;User Id=admin;Password=;"
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I have an application which saves contacts from Outlook/Csv onto a disk, from a Treeview. Now I want to provide security for this file. I want to provide encryption using AES algorithm to the file before it is saved on the disk. My problem here is how I encrypt it before saving the contents from the treeview into the file on the disk. Also I want to decrypt the file contents and load treeview if i find the file is encrypted.
View 3 RepliesI have a question, i need to store the value of richtextbox to MySQL and retrive the value from MYSQL to richtextbox. can you give me a code in vb.net? and will the formating be affected like the font and alignment?
View 6 RepliesIs there a way to set session variables during login that are then available to reports? We have a reporting services server where we move and denormalize data from our transaction system for reporting purposes. In order to allow our users to login with the same user name and password from the transactional system we have set up custom forms authentication and after much trial and error it is finally working. In addition we have the authorization accessing our transactional system so that any changes in user authority is immediately reflected in Reporting Services.
Our problem now is that we would like to add some additional features such as locking down parameters depending on user authority/groups in our transactional system. We have found a way to do it but it's inefficient, basically we have stored procedures that will query our transactional system to check for access. The problem is that these queries will often be run for every report request even though the answer is unlikely to change. It would be nice to have access to session level data that can be set once during log in and then accessed from the reports.
code that stores the images in a local folder n not in database.also i want to rename the image with autonumber.
View 3 RepliesI want to use the image.source property to reference or retrieve .jpg images from the Resource file at runtime so I can dispay them in an image control, but seem to be failing. The images are now in the Resources file. I use vb.net in WPF. I know how to reference them in a folder but this proves to be inconvenient.
View 2 Repliesi need help in "retrieving/update" images using stored procedures in vb.net
View 5 Repliesnow the remaining things are done-able but im stuck in new requirement posted by Client which he needs to upload all images from Sql Server to Oracle Database now since old application stores images Path it is kind of new story now ?(:
i tried to build sample application since am not familiar with kind of above requested modification here is my code so far to upload images
'' Sql connection is over
Dim fs as new fileStream (imgPath , io.fileMod.Open , Io.FileAccess.Read)
Dim imgByte (fs.length -1 ) as byte
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I have developed a drawing tool that allows the user to add graphically referenced database records to a picturbox.While for testing purposes i was simply loading any picture into the picture box what i want is on selecting a building name from a combobox that it automatically populates the related floor levels (that apply to that building)to appear as a selection in a 2nd combobox. On selection of say 1st floor i want to load the relevant floor plan (JPEG)image into the picturebox.The tool i have developed has an estate builder function where you ccan build your estate profile i.e specify the buildings and floors etc and these are added to a database file. What i would like to do is at the same time specify the floor plan JPEG file location and for this to be stored in the database in a way which would enable me to load the image automaticaly when i select the floor level
View 3 RepliesWhat type of connector do i need to actually save the Map data like point of the images (x,y coordinate) into the database . and then retrieve it to show on the page in asp.net and how do i go about doing it.
View 3 Repliescan anyone teach me how to save data in microsoft access database and retrieving it back from database?[code]so, how do i save it in that and how do i load their data by typing their ic no only..
View 5 RepliesI have a vb .net ArrayList that I would like to store in one field on my Ms SQL 2008 database. Is it possible to put it in and get it back out as an ArrayList? I'm guessing i need to break down the Array some how and store it as a string, then rebuild it when reading back as i dont see any datatypes for sql that are for arrays. Which is a bummer for me! edit - The ArrayList stores a set of quote ID's. There is no limit to how big it is so it could hold 1 or 1001 different ID's
View 3 Repliesi am making a project and in that getting storing and loop problems there are two fields serial no and quantity when quantity is entered serial number must be asked then only and the number of times quantity is entered that many times serial number must be asked also serial number is from to too like 1 to 6 or 1 to 5 so i have to taken 2 textboxes serialfrm and serialto to store but now the problem is that i am not able to write proper code for it either it doesn't get saved to the particular name to which both fields belong or it keeps saving without stopping.
View 2 Repliesi am generating a barimage and storing in a database i am able to create a barimage and store in a local drive but while transferring i am facing difficulties my code is
con.Open()
barcode = New BarcodeLib.Barcode.Linear.Linear()
barcode.Type = BarcodeLib.Barcode.Linear.BarcodeType.CODE39
barcode.Data = TextBox1.Text
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how to store images in database using VB.Net?
View 2 RepliesHello All,
Can anybody help me, i am having challenges getting collections value into the database
Here is my sample code. but is not working at all rather is crashing the applications
Dim collections As New System.Enrolment.CustomerBiometricsCollection()
collections = Me.PrintCaptureWizard1.ShowDialog()
Dim dbs As New DBClass
Dim mee As String
mee = dbs.ConnectionString
Dim conn As New SqlClient.SqlConnection(mee)
conn.Open()
Dim ds As New SqlCommand("Custoon", conn)
ds.CommandType = CommandType.StoredProcedure
ds.CommandText = "CustBiometrics"
For k As Integer = 0 To collections.Count - 1
ds.Parameters.Add("@TemplateID", SqlDbType.UniqueIdentifier).Value = New Guid(TextBox1.Text)
ds.Parameters.Add("@TemplateIdentifierID", SqlDbType.UniqueIdentifier).Value = (collections(0).TemplateId)
ds.Parameters.Add("@CustomerID", SqlDbType.UniqueIdentifier).Value = New Guid(id)
ds.Parameters.Add("@Template", SqlDbType.Image).Value = collections(0).PrintTemplate
ds.Parameters.Add("@TemplateSize", SqlDbType.Int).Value = collections(0).Size
Dim dr As SqlDataReader = ds.ExecuteReader()
dr.Close()
Next k
conn.Close()
MessageBox.Show("Record Inserted")
I am using an Access database and vb.net 2010. I have created a table in the database with columns for title, datein, dateout and roomnymber. In vb.net 2010 I made a distinguished title = combobox, datein and dateout = DateTimePicker. When I click on F5, an error occurs: INSERT INTO Syntax Error in statement. [Code]
View 1 RepliesI am in front of a great dilemma whether to store files in Database or doing it the standard way. I would choose the second option, but my application will be used by multiple users, so I am doing it by Web Services.
On the one hand, storing in database will be very useful as every user would have access to everything very fast, not caring about file paths, locations and so on.
On the other hand, if this table consists of 1000 files, wouldn't it be a bad idea as there should be some performance loss?
At the present moment, I am using mysql as database, but I am thinking of moving to SQL Server, but I suppose this is not DB Issue.
i simple want to store the textbox data into the dataset .after that i want to fill using adapter into the sql server table
View 11 RepliesI am using vb.net (visual studio 2010) and have made a form application that uses a login screen. All that works but I am having trouble any firm way to encrypt the passwords in the database. The encryption doesn't have to be very high standard as its just for a college project. Whats the best way to encrypt the password into the database? Or just encrypt the password string, I can then sort out the database end myself.
View 2 Repliesi had a go at the jmc's codebank submissionon this particular topic: [URL]
And the basic concept of doing is that converting the image to a binary before it will be save in a database.
I am using the .mdb database(access 2003)....so what will be the datatype of the field where i will be saving the binary format of the image?
Dim NewOutwarsDeliveryNoteNumber As Integer
Dim iSql As String = "SELECT MAX(OutwardsRefNumber) FROM NewOutwards"
Dim da As OleDbDataAdapter = New OleDbDataAdapter(iSql, LoginForm1.Conn)
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when I try and run this code it gives me the error that says "Column 'OutwardsRefNumber' does not belong to table ."BUt I am 100% sure this column is in my table. what can I do to correct it?
I have encountered a problem where in my database I have a column that is a bit either 0 or 1 specifying if a user is an admin or is account suspended or not. And in my VB code I am trying to retrieve that bit. Example code:
Dim dtRequests As DataTable
dtRequests = New DataTable("Users")
dtRequests.Columns.Add("SESLoginID", System.Type.GetType("System.Int32"))
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I tried getting rdr.GetByte(3), this tells me cast not valid, but there is no function of which will say GetBit, and if such exists I could not find it.
I am coding a banking and ATM application, which is split into two parts. In one part the employees of the bank can open new accounts for customers, edit accounts, etc. It includes assigning a unique PIN code for the customer. This is all saving to a database. The customer then uses the ATM part of the application to withdraw money. They use a unique PIN code to access their account. The problem that I'm having is retrieving the PIN from the database. I want to write a simple If statement, to match the PIN entered with the corresponding PIN in the database, so that it will retrieve all the relevant customer's details, eg. bank balance. The PIN is successfully saving to the database through the following....
Private Sub btnCommit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCommit.Click
If inc <> -1 Then
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So how do I retrieve the PIN from the database that matches with the PIN entered and hence, retrieves bank balance, etc?
I am using two textboxes, one for roll number and the other for the corresponding roll number.
And I am using 4 command Buttons
Move First
Move Previous
Move Next
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im having trouble retrieving pdf files from a database and displaying them on a web form i am able to upload it from a dialog but cant retrieve from a access database. below is code that i have written to retrieve and display the pdf . it runs but doesnt display the pdf in the windows form nor does it give any errors .
Dim picture As Byte()
Dim count As Integer
Try
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i can save the picture in the database, now i have to retrieve it. this is my code for the saving of the picture,
Dim ms As New MemoryStream()
studentpic.Image.Save(ms, studentpic.Image.RawFormat)
Dim arrImage() As Byte = ms.GetBuffer
ms.Close()
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i saw on the net that i have to the reverse of the pic, i have to convert byte into image.