.net - Binary Read Jpeg And Store It In SQL Server Db?
Jan 11, 2010I have a jpeg file in my C drive from my vb.net application I want to binary read it and store it in SQL server.
View 1 RepliesI have a jpeg file in my C drive from my vb.net application I want to binary read it and store it in SQL server.
View 1 RepliesI'm currently working on a program that would take the binary data from my access database and convert it back into jpeg format so I can store the images in a folder. I'm really new to VB so right now I'm pretty much stumped.
Code:
Option Explicit On
Public Class Form1
Private cn As ADODB.Connection
[Code]....
I want to make a program that you can load a jpeg image and convert the image to binary data so that I can put it in a file along with a lot of other data. But I don't know how to change it to binary and back, I was told I would need to do this in order to merge multiple files.
View 1 RepliesI have created a form in Visual Basic with two buttons, a PictureBox and a TextBox. I made the first button to load an image from my hard disk and show it in the PictureBox.What i want to do now is to make the second button to convert this image to binary and show the string in the TextBoxHere's the code for the first button:
View 27 Replieswhere can i find a jpeg image with adaptive binary arithmetic coding?if you have a image of that, please sent it to me.
View 5 Repliessome link or could that could explain the way it could be done.
View 1 RepliesI have an image stored in the database as varbinary(max) When it's read out into a datatable, it's only being displayed as System.Byte[]. I've tried every trick in the book to get the binary in string format so I can write it back to the varbinary column in another database.
View 6 RepliesI Need to Store bunch of Jpeg files from local file system to a column with image datatype in databse.Can any one please provide me some code to do it?
View 6 RepliesI'm reading a folder to assess the width x height of jpeg's, to classify them in various ways. Opening each as a bitmap and reading the bitmap width and height works but of course is laborious and very slow .... I've read various JPEG file format papers but retrieving the image pixel width and height seems none too obvious. Is there a logical way in VB to get this info quickly? My jpeg's are bog-standard ones made using VB's "Bmap.Save(Fname, ImageFormat.Jpeg)".
View 9 Repliesi have a jpeg file which contains table of 10-15 rows...i want to read it through vb6 and save it in database table..
View 1 RepliesHow to Update JPEG into a SQL Server 2000 database field of image type using Transact SQL
View 2 RepliesI want to store data in binary format in VB. Are there any disadvantages to use the functions fileopen, fileput, and fileclose instead of serialization using binaryformatter object. Using these functions seems to be easier and more compact.
View 1 RepliesI need to store/retrieve a bit from a data table of 3.268.760 bits long.
Using w As New BinaryWriter(File.Open("test.bin", FileMode.Create))
for x = 1 to 3268760
For i = 1 To 3268760[code]....
the w.write(?) stores a boolean value meaning 0/1 for false/true values, but Vb.net seems to use an whole byte to store this data which is too expensive for my table (3.268.760^2).Is there a pratical way to store/retrive single bits from a file using vb.net? (meaning as little as possible conversion to other types).
I have a client and server: I cant get the server to extract the byte sent to it.
Server:
Imports System.Net.Sockets
Imports System.Threading
Imports System.IO
Imports System.Net
[Code]...
i tried out this [code]i can create and write in the .bin file but how to read it then?
View 20 RepliesI have existent binary files with this structure[code]...
View 13 RepliesI have a binary file with lines like that
2011021007001 �00000009177855400213156412300210000000000010000EC
I don't know how I can read the first 13 characters in a variable like in C ( with char[13] ). My idea is to read the first 13 characters, skip the next 5 characters for change with 5 '-', and next read the rest of the line. I need to read as Binary because it have some special characters.
I have a problem to read the binary from HttpWebResponse. The problem occur when the data is less than the buffer i predifine. It will hang in a long time when stream.Read(buffer, 0, buffer.Length) in ReadFully function.
Here is the sample code
Public Sub GetData()
Dim Buffer(1024) As Byte
Dim sHttpData As String
[Code].....
I need make an application that gets binary code from a file, such as a .exe, (in 8-bit form) and display the charectors in a RichTextBox .BUT! The catch is I need it to do the process REALLY fast, like in a 5th 0.5 of a second. I have a method but it takes way to like, sometimes 5 seconds for 1 file, which isn't what I want This is the code I have:[CODE]......
View 9 RepliesWay to Read Binary Data.I have the following [code]...
View 4 Repliesreading a 16bit binary file (tiff image). Since the file is in 16bit, pixels of the file stores values ranging from 1200 to 4500. I want to retrieve those values. I used ReadUInt16 since the file has a 2byte data type but keep getting EnfofStreamException Unhandled error.
Dim f1 As New System.IO.FileInfo(TextBox2.Text)
fLen1 = f1.Length
Dim snglRead As Single
Dim i As Integer
[code]....
To read a record in a binary file in VB^ I would define a type with all the fields specifying strings as STRING * whatever the length of the field was.
For example:
Type Record
Field1 as string *15
Field2 to as string * 20
Field3 as String * 10
field4 as byte(10)
End Type
Dim filerecord as record
I would the open my binary fiel and do a Get#1,, filerecord
The record would be read and all the fielsd would be in place.
Now with the new Structure we cant dimension an array in the Structure And wjhen declaring strings we can't specify the length.
I tried to create structire and use a stream binary reader. and just read afixed number of bytes into the type, The program says it canvert bytes to my fiels.
So how do I do this. Or has Microsoft in their infinite wisdom left no way to do this.
How do I read a raw byte array from any file...
Dim bytes() as Byte
..and then write that byte array back into a new file?
I need it as a byte array to do some processing in between.
I'm currently using:
To read
Dim fInfo As New FileInfo(dataPath)
Dim numBytes As Long = fInfo.Length
Dim fsAs New FileStream(dataPath, FileMode.Open, FileAccess.Read)
[Code]....
How can I read arrays from Binary Files?
View 9 RepliesI have a serious problem reading that stuff, it seems I can't get it right.The registry key I want to retrieve looks like this:
And this is the code i used:
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim readValue = My.Computer.Registry.GetValue _[code].....
The problems is that it returns something like: "V???????=dQ???!u?1?" What the ____ is that anyway? So in reality it should be like "c3gm322dvf" or something like that.
I'm a beginner programmer, but this may not be a beginner program question. I would like to write a program in small basic or visual basic that reads data from a binary file. The data are formatted in hex and look like this:
[Code]...
I have this code which works well:
Public Function LoadBinaryFile(strFilename As String) As Byte()
Using fsSource As FileStream = New FileStream(strFilename, FileMode.Open, FileAccess.Read)
' Read the source file into a byte array.
[code].....
Im trying to read and write to a file in binary.to give an example of what im trying to do i have posted a picture below.the string is 12 bytes long and each four bytes has a float.the one in red is set at 1 and green and blue are 0 giving the read as the overall color. i have been trying to get this well i tried once and gave up but its been awhile.i have this so far but it doesnt work. this is kinda what i got to read the bytes out but its messed for i have been trying everything i could think of
Code:
Dim s1 As FileStream Dim br As BinaryReader s1 = New FileStream(Application.StartupPath & "/files/test1.bin", FileMode.Open, FileAccess.Read) br = New BinaryReader(s1) Dim bytes(12)
[CODE]...
I have this to write the color back from a color dialog
Code:If dlgColor.ShowDialog() = DialogResult.OK Then
PictureBox1.BackColor = dlgColor.Color()
[CODE]...
We have a SQL server database that had ID fields that used to be defined as integer.The new version of the database has the ID fields defined as BINARY(16).The VB project I am ugrading reads these tables and spits out Crystal Reports. The problem I am having is this portion of
[Code]...
Some binary files have application variables at the end if you open it with a text editor you can see these variables. Now when I read these files into the processor memory the program does not work properly, however if I read a file without this it works fine. So how can I read a byte[] array to EOF so that when I pass that byte array into win32 api create-process it will create the process without corrupting the program?
View 3 Replies