Store Data In Binary Format In VB?

May 22, 2012

I 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 Replies


ADVERTISEMENT

Binary -store/retrieve Bit Data From File Using BinaryWriter?

Apr 11, 2012

I 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).

View 1 Replies

Insert A Data Which Is In Binary Format Into Sql Server Database Table

Dec 11, 2010

I have insert a data which is in binary format into sql server database table Column type of table is Image Type. I have to read this column from a XML file,I am able to read but

[Code]...

View 3 Replies

Convert Jpg Format Into Binary Format Using Code?

Feb 28, 2008

How to convert jpg format into binary format using VB code ?

View 3 Replies

C# - Write Binary Data "as Is" To Registry (visible Binary Data As String From Regedit Only)

Feb 23, 2011

I have been googling this and have not come along a working solution for an entire day. I don't know anything about binary data types (as I've never knowingly used them) and I'm trying to write a binary value that I see in the registry, to the registry. Now, all I see is the following [shown below]... and if I try to pass that as a string to the RegSetValueEx in the WinAPI and of course it errors out...

I do not know what 'numbers' I need to pass into the lpData As Any, argument of RegSetValueEx (i tried a bit array) in order for it to come out as the following [shown below] in the regedit. I really have no idea, and my tests to place random numbers in the bit array just produce corresponding random "figures" as visible in regedit that I do not understand how to 'tie' them together logically. here is the culprit!

[Code]...

View 2 Replies

.net - Binary Read Jpeg And Store It In SQL Server Db?

Jan 11, 2010

I 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 Replies

Save Image In Binary Format In Program?

Mar 11, 2010

How to save image in binary format in vb.net

View 1 Replies

DateTime Binary Coded Decimal Byte() Equivalent Of String Format?

Sep 30, 2010

I realize the code listed below, whose serial port using string formatting which I inherited is complicated. It formats a Date obtained from a DatePicker control into a "yyyy-MM-dd HH:mm:ss" string format to send to a hardware device to be stored via Serial Port retrieves the date from the device and displays to user What I'm trying to do is port the code for use in a Socket rather than Serial Port which wants a Byte Arrray of the same Date Time string variable. I can't figure out how to encode and convert to Bytes the string value used in the Serial Port version. The evolution of the process is listed from top to bottom.

[Code]...

View 2 Replies

Iphone - Correct Format For Reading And Writing Binary Strings Using Ifstream

Feb 1, 2011

I'm trying to read back a string that I wrote into a binary file, but it's giving me problems and I don't know what's going on. I open and read my file using the code below:

ifstream input([filePath UTF8String], ios::in | ios::binary);
int numStringBytes;
input.read((char*)&numStringBytes, 4);

[Code]....

View 1 Replies

Iphone - Correct Format For Reading And Writing Binary Strings Using Ifstream?

Sep 24, 2010

I'm trying to read back a string that I wrote into a binary file, but it's giving me problems and I don't know what's going on. I open and read my file using the code below:

ifstream input([filePath UTF8String], ios::in | ios::binary);
int numStringBytes;
input.read((char*)&numStringBytes, 4);

[code]....

There is a lot more to the file reading code, but it's proprietary and this is the part that keeps crashing. It runs fine loading the first two files, but when I try to open a third file, it crashes with EXC_BAD_ACCESS at the input.read((char*)names, numStringBytes); line. I don't see any reason that this should crash. I'm writing the binary files in VB.NET using the below code:

Dim myFS As New FileStream(savePath, FileMode.Create)
Dim encoding As New System.Text.UTF8Encoding()
Dim stringBytes() As Byte = encoding.GetBytes("++string")

[code]....

View 5 Replies

Converting A Value To The US Format To Store In A Database

Feb 21, 2011

I'm working on an application that is used by English and French users. French users have their computer's regional settings that make the decimal "," instead of "." and the number spacing " " instead of "," So, a French user will input a value "9,78" in a text box. I need to make this value "9.78" so I can safely store it in a database. How can I convert this to the US number format?

View 8 Replies

Display The Picture Which Is Stored In An Access Database In Binary Format Inside The Picturebox PbProduct?

Jan 26, 2009

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...

View 10 Replies

Store A Stream In Compression Level 4 Jpeg Format?

Jan 10, 2012

some link or could that could explain the way it could be done.

View 1 Replies

Read Text File With Tab And Carriage Return Format To Store Them In Array

Jul 1, 2009

I have to text file in the following format :

Word[tab][tab]Word[Carriage Return]
Word[tab][tab]Word[Carriage Return]
Word[tab][tab]Word[Carriage Return]

I want to get all the words before the tab into one array or to create a new text file and the all the words after the tab into another array or create a new text file too.

Here my function to get the words before tab into an array :

Protected Sub MakeWordListBeforeTab()
Dim filename As String = "D:lao�0001.txt"
'read from file'

[Code].....

I wrote the above function to get all words before tab but I got all the words into array. I've been trying to use the Split method above. What is another method to split those words ?

I know this can be done with regular expression but I don't know regex yet. If you can show me how to get this done with regex it'll be awesome.

View 2 Replies

How To Format A Date Column In A Datgridview Where Data Is Double Format

Aug 3, 2009

I have a DGV that is getting data from a sql db. The dates in this db are stored as doubles ie 40025.708681

How do I format this column as Date/Time?

I tried but this doesn't seem to work.

how to do this? DGV1.Columns("HostDate").DefaultCellStyle.Format = "d"

View 5 Replies

File I/O And Registry :: Check If A Certain File Is In Text Or Binary Format?

Mar 13, 2010

how I could check if a certain file is in text or binary format?I'm using VB.Net 2008 Express.

View 2 Replies

String Or Binary Data Would Be Truncated Inserting Data

Jan 27, 2012

I have problem when i inserted data. the error show String or binary data would be truncated. What is meaning of that??

This my code:

Try
SQLCONNECTIONS.connect()
Dim sqlcmd As New SqlCommand

[Code].....

View 4 Replies

Byte() (System.Byte[]) Versus Binary (System.Data.Linq.Binary)?

May 1, 2009

i have a table in sql server with some fields set as Byte() (System.Byte[]) when i import them in my application to be used with linq they are converted in Binary (System.Data.Linq.Binary)why is that?is there a way to prevent this wrong translaton???if i update the database how can i update the classes that has been craeted in visual studio2008?

View 2 Replies

InputBox Function - Program - Allow User To Input 5 Payrolls For Store 1, Store 2, And Store 3

Mar 22, 2012

I am coding a program that will allow the user to input 5 payrolls for Store 1, Store 2, and Store 3. The total of the 5 payrolls are then added together and shown in the respective Store's labels. A total label is also there to add up all the totals into one number. The numbers in the label must be in currency form. My problem is the numbers don't add correctly when I hit calculate. The first two numbers add together, but then after that the number just seems to subtract a random amount.

So far I have this --

Public Class Form1

Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Me.Close()
End Sub

[CODE[...

View 14 Replies

Code That Reads An Input File And Store Data In SQL Server Data?

Sep 11, 2009

I am new to VB.net. I want to read and input file and store that data to an SQL Server database. Do you have an sample code that do such?

View 1 Replies

Continously Reading Data From A Modbus TCP Device And Store Data In A Textfile?

Mar 2, 2012

I have a modbus TCP device that I have managed to connected to through my VB source code.

I want to poll (continueously read) data from certain registers of the device, and store the polled data in a file (text,csv, excel).

View 1 Replies

XML 6.0 SP2 - Create A Small Backup Before Data Is Syncronized To A Data Store?

Feb 14, 2011

I have an application that uses Dataset.WriteXML to create a small backup before data is syncronized to a data store (less than a meg).This application has worked well for 5 years now, and all of a sudden with the installation of XML 6.0 SP2 the XML document is not working correctly.I have multiple tables within a Dataset (Company, Contact, Notes, etc...)When WriteXML is called, the first table should be Company, however, the first table is being named Contact with the Company Data in it. The Notes table is being called Contact and so forth. In other words it's not giving the correct names to the tables in the XML File.This appears to be a bug, which is causing great distress on all the companies who have been using this program.

View 3 Replies

Display The Binary Data?

Jul 23, 2009

I've made a Access database of my CD collection I have lots of movies and I copy the picture of the original DVD from www.imdb.com into my database in a OLE field I can see the picture that's connected to the desired record just fine in access but now I'm working with Visual Basic express 2008 and I want to connect this Access database to my project. I can see the data just fine but not de OLE pictures
I changed the properties of that picture into a picturebox in de datasource screen bu I don't see a picture (blank)

View 9 Replies

Handling Binary Data In .net?

Aug 13, 2009

Iam having major difficulties handling a binary stream which I am trying to read and process in vb.net. The stream is coming in from an FTDI chip and should contain 64 8-bit values.An example of the stream is here

����������������������������������������� ����������ٶ��������

I need to get this into something that I can read (decimal or hex or 1s and 0s) in vb and I just don't know what to do - I tried using Asc() but it wasn't working and I know now that it can't work with characters higher than 127.

View 13 Replies

Way To Read Binary Data

May 16, 2009

Way to Read Binary Data.I have the following [code]...

View 4 Replies

What Is The Raw Binary Data Stored In The Cd

Oct 23, 2009

I want to know wot is the binary data stored while writing on the cd.I jus want the exact binary sequence present on the cd/DVD..

View 4 Replies

VS 2010 How To Get A Template And Store It In Data Base Without Using Data Set

Dec 12, 2011

i just want to know how to get a template and store it in a data base without using data set

View 1 Replies

Binary Data -inputstream Error?

Jun 4, 2010

I am only pasting what I feel is relevant to this error but if you deem necessary I will paste the w hole code,software used- sqlserver 2005 express, VS 2008 express - language vb.netlittle extra info is added at the end of this code

View 14 Replies

Encrypting Data Using A Binary Formatter

Aug 20, 2009

I am currently using a binary formatter to serialize/deserialize some data objects. Some of the properties in the classes are Strings. When the data is written you can open the file with a text editor and can see the raw String data. Is there any way to encrypt the Strings or the entire object before it is serialized? I have looked at this thread here [URL] but the code is in C# and the free converters I tried for some reason did not like the code. This is the code I am using currently.

[Code]...

View 1 Replies

How To Write Binary Data To Registry

Feb 9, 2010

How can i convert hex data to binary data and write it to registry anyone ?

View 5 Replies







Copyrights 2005-15 www.BigResource.com, All rights reserved