Conversion From Binary?

Jun 29, 2009

I am writing lots of numbers to a binary file, using the "My.Computer.FileSystem.WriteAllBytes" method. I'm struggling with reading the numbers back in....

Private Sub trial()
Dim vals1() As Byte
Dim vals2() As Byte


How do I know where one ends and the next begins? This is especially important because the length of vals could be something other than 8....


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I 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.

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Mar 6, 2010

I write a program to convert Decimal numbers to Binary numbers. It is working well. But I want to control the bits. i.e - We can write 31 as a) 11111 or b) 011111. When I run my program it displays 11111. I want to take input bit from a text box and display it like 0011111 or 011111 or what ever bit I input. How can I do that ?

Private Sub DecToBin()
Dim i As Integer = txtDec.Text
Dim binary As String = Convert.ToString(i, 2)
txtBin.Text = binary
End Sub

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I have this code for a decimal to binary conversion in a calculator. It is working, but when I entered numbers with decimal, the conversion didn't work.[code...]

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Mar 7, 2010

I want to take more than one number separated by one space from txtDec textbox and display their binary form again separated by one space in txtBin textbox.

My code below ---
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Dim i As Integer = txtDec.Text
Dim binary As String = Convert.ToString(i, 2).PadLeft(8, "0"c)
txtBin.Text = binary
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I'm creating a program in that does the following:At a high level I receive a file in email, put the attachment in a monitored folder, import the text file to excel, format the excel, and then email the excel file to a list of recipients.

Here is my plan:

Completed: Outlook VBA to monitor all incoming email for specific message. Once message is received drop attached .txt file in a specific network folder.

Completed: ( Monitor folder, when text file is added begin processing

Not Complete: ( Import text file to Excel

Not Complete: ( Format Excel Text file.(add in a row of data,format column headers with color/size, add some blank columns, add data validation to some of the blank columns that allow drop down selections)

Completed: ( Save file.

Completed: ( Send file to list of recipients.

Obviously the items above that are not complete are the bulk of the work, but I wanted to get some advice on what some of you think would be the best way to approach something like this. The import and formatting of the file are causing me some problems because I just can't decide what would be the most efficient way to do this.

The way stated above. Import to excel -> format Having a template excel that contains all of the formatting already done for me and attempting to transition the data to this document (no clue if/how I can do this). Is it even feasible? Have the template already created and then import the text file to a new excel file, then transition that data to the excel template?

Something I thought about, in terms of formatting the document, was to record a macro of me doing all of the formatting that I'm going to need and then attempt to convert that macro into my code, but I'm not sure if that will work. I will need to verify that the text file comes in the EXACT format every time correct?

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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!


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Dim regKey As RegistryKey
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when it receive "Segment", it should append to that file, but the problem is ... backgroundworker no more recognize the file (which its identifier saved in global variable F) and telling "Bad File"?!

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I am trying to write a program which performs a binary search. The user will input the name of a state in a textbox.I have a listbox which is populated with the 50 states in ABC order.The middle of the list must be determined and then determine which half of the list the state may be located. If the middle item is less than the state name the state should be in the second half of the list. If it's greater than the state name is should be in the first half of the list. The calculation for looking at the middle itemi the list is:

middle = CInt(first + last)/2)

There is a variable 'flag' which is initially set to false and then will be set to true if the state name is found. The variable first is initially set to 0 and last needs to be set to one less than the number of items in the list.Below is a very rough program fragment.

Private Sub btnSearch_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSearch.Click
Dim i As Integer
Dim flag As Boolean = False
Dim first As Double = 0


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I want to make a program that can make:

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Here is my code:

' s is my txt.file
' in this code i want to check if char "g" is the in the txt.file
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sender As


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Okay here is the code I'm using to convert text to binary and then back to text for display.

Module convertbinary
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Dim BinChar As String


What I'm trying to do is store a query string in a table cell. So I figured the best way would be to convert the query string to some binary format for storing and then when I pull it out of the database I would convert it back to a string of text.

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Dim a as Double = 2.2

How can I convert this to Binary,

If we use Convert.toString(a,2), It'll return "10",

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set db1 = Server.CreateObject("ADODB.CONNECTION")
db1.CursorLocation = 3
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dim remainder as int16
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this is only for the decimal to binary part though. it keeps not wanting to work.

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