Return Byte Array (start / Length)
Sep 20, 2010Given a byte array of length 100..I would like to find a function that returns a byte array starting at index 15 and containing the next 20 bytes.
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Initialize Byte Array To Zeros Given A Specified Array Length?
Aug 2, 2011given the following Sub, how would I initialize byte array 'temp'to zeros and give it the length of the incoming byte array passed into the subroutine?
Sub ReceivePacket(ByVal buffer As Byte())
Dim temp() As Byte 'initialize to zeros and length of buffer
temp = buffer.Skip(17).ToArray()
End Sub
Returning Byte Array - Getting The Error On 'Return ImageData'?
May 11, 2011I have the following function (in a WCF)
[code]...
Problem is, I'm getting the following error on 'Return ImageData':Value of type '1-dimensional array of Byte' cannot be converted to 'Byte'.I've been playing with it, but can't seem to figure out what I need to do to ImageData.
VS 2010 - Properties To Return Either Integer Or Byte Array
Feb 24, 2011I am creating a class that will represent a file and I am going to have lots of properties. Now I want the properties to return either a integer or a byte array. Is this possible or do I need to create 2 different properties one for the integer and one for the byte array? When I try I get. 'Public Property something As Integer' and 'Public Property something As Byte()' cannot overload each other because they differ only by return types.
View 2 RepliesConvert Java Byte Array To .NEt Byte Array
Mar 24, 2010I am trying to Convert a data field stored as IMAGE ( SQL Server 2000) using Java to a byte array using VB.NET Java uses signed numbers for a Byte array where as VB dosent. Can somone point me to how I can covert java byte array to VB byte array?
View 2 RepliesCombine Byte Arrays, Read Specific Sections, And Then Cut Byte Array At Specified Point?
Apr 6, 2011Objective: Combine byte arrays, read specific sections, and then cut byte array at specified point.
Private Sub DataArrival(ByRef aBot As xyzSocket, ByRef theData As Byte())
Dim RDLength As Int32
If aBot.ReceivedData Is Nothing Then[code]....
I'm not sure if I have this right to begin with because I can't test it without having it completed.
Error: Value Of Type Ƈ-dimensional Array Of Byte' Cannot Be Converted To 'Byte'
Jul 13, 2012how to upload file using fileupload control into sql database. I have class where i created insert function and getting info frm the .aspx.vb file
Class File
========
Imports System
Imports System.Data
Imports System.Data.SqlClient
[coe]....
Convert The Arry.length To Byte?
Jun 3, 2009i need to know how much space an array of bytes will use on an hard disk
View 9 RepliesMost Efficient Way To Merge 2 Byte Arrays Into 1 Byte Array?
Sep 20, 2011I have 2 byte arrays. I want to merge these two byte array into 1 byte array.Usually, I just create a new byte array with length = byte array #1 + byte array #2. Then copy byte array #1 and #2 to the new byte array.do I have more efficient way to merge 2 byte array using VB.NET and .Net 4?
View 2 RepliesValue Of Type Ƈ-dimensional Array Of Byte' Cannot Be Converted To 'Byte'
Mar 30, 2009I would like to create a function so that I can pass a string and it will return me the binary value, I will use this later in other parts of the script but I am getting an error that I don't understand.
Private Function ConvertToMD5(ByVal OldPassword As String) As Byte
Dim NewPassword As String = ""
'The string we wish to encrypt
[code]....
On the "Return hashedDataBytes I get "Value of type '1-dimensional array of Byte' cannot be converted to 'Byte'"
Operator '&' Is Not Defined For Types '1-dimensional Array Of Byte' And '1-dimensional Array Of Byte'.
Feb 26, 2012I have 9 1-dimensional arrays of bytes and 1 of them is empty, I want to make the empty one equal to the others put together like you would a string:
Dim bla As String = "bla" & "bla" & "bla"
'now bla = "blablabla"
but instead:
[Code]......
Read A Raw Byte Array From Any File, And Write That Byte Array Back Into A New File?
Sep 20, 2009How do I read a raw byte array from any file, and write that byte array back into a new file?
View 3 RepliesVS 2008 - File Length Being Converted To Byte
Jun 11, 2009Seen this in
Dim file as FileStream = New FileStream("myfile.text", 0, FileMode.Open, FileAccess.Read)
Dim reader as BinaryReader = New BinaryReader(file)
Dim data as Byte() = reader.ReadBytes(CType(file.length, Integer))
Why is the file.length being converted to Byte, when Integer range is greater, and the code not failing to do so? I don't understand.
Convert A IntPrt To Byte Array (Byte())?
Nov 18, 2010How could you convert a IntPrt to a Byte Array (Byte()) ?
View 19 RepliesConvert Byte Array Into A String Like So Dim Byt As Byte()?
Jan 25, 2011I have a byte array that I convert into a string like so Dim byt As Byte() = New Byte(255) {} s = New String(Encoding.ASCII.GetChars(byte))My question is when I look at the string in a debuger its clearly a normal string but when I compare it to what I know its supposed to be it doesnt equal. So i did a quick check and for some reason its return a string thats the length of 256 characters. So i did a s.trim and it still is 256 characters long.
View 1 RepliesStuff 8 Bits Into One Byte Of An Array Of Byte
Oct 2, 2010given my code below, I'm trying to figure out how to create an array of 1 byte containing 7 bits. So the byte in the array would contain 0111111 to correspond to mData_Out's boolean values. How would I change the following code? [Code]
View 8 RepliesC# - Count Occurences In Byte List/array Using Another Byte List/array?
Jun 20, 2011I am trying to get a count of all the times a byte sequences occurs in another byte sequences. It cannot however re-use a bytes if it already counted them. For example given the string let's assume the byte sequence was k.k it would then find only 3 occurrences rather than 5 because they would be broke down like: [k.k].[k.k].[k.k]. and not like [k.[k].[k].[k].[k].k] where they over lap and essentially just shift 2 to the right.
Ideally the idea is to get an idea how a compression dictionary or run time encoding might look. so the goal would be to get down to just 2 parts, as (k.k.k.) is the biggest and best symbol you can have.
Here is source so far:
[Code]...
Initialize An Indefinite (eg. Decimal) Array Without Setting Boundaries On The Array Length?
Nov 10, 2009initialize an indefinite (eg. Decimal) array without setting boundaries on the array length?
View 2 RepliesSort An Array Of Doubles Into A Lowest To Highest Array Of The Same Length?
Nov 29, 2011best way to sort an array of doubles into a lowest to highest array of the same length.
View 10 RepliesEncoding.GetString Doesn't Return Proper Length
Jun 28, 2010My system has Japanese regional settings. I have used this as default encoding in my code. But Encoding.GetString() method doesn't return proper length because of DBCS.[code]
View 2 RepliesMSDN If GetModuleFileNameEx Succeeds It Should Return The Length Of The Path Name
Jun 25, 2009I am new to the Window's API and have been trying to just poke around with it. It was suggested to me to try making a time tracker program that will track how long a window is actively being used and keep windows from the same .exe file grouped together. Things have been going good so far, but I am having trouble with the GetModuleFileNameEx command.
According to MSDN if GetModuleFileNameEx succeeds it should return the length of the path name; however, when I output the return value of GetModuleFileNameEx, it is just a random long number that changes with every tick of the timer. Also when i try to output the path of the open window just to see what is being stored there, it is blank. I have googled and surfed the net for but to no avail. I was curious if someone here might have an answer for me Here is the code I am having trouble with:
[Code]....
Return Enum String By Byte / Integer
Oct 6, 2011I have worked with enums for some time, but i ran in to a little problem.. So i have the Enum:
[Code]...
for example: Dim the_text_value As String = MyStuff(some_func()) ' this returns not "1", but "omg_this_is_one" how can i do this ?
Object Array To Byte Array - Marshal.AllocHGlobal Fragmentation Query?
Jun 14, 2011I didn't think it fair to post a comment on Fredrik Mörk's answer in this 2 year old post, so I thought I'd just ask it as a new question instead..NB: This is not a critiscm of the answer in any way, I'm simply trying to understand this all before delving into memory management / the marshal class.
In that answer, the function GetByteArray allocates memory to each object within the given array, within a loop.Would the GetByteArray function on the aforementioned post have benefited at all from allocating memory for the total size of the provided array:
Dim arrayBufferPtr = Marshal.AllocHGlobal(Marshal.SizeOf(<arrayElement>) * <array>.Count)
I just wonder if allocating the memory, as shown in the answer, causes any kind of fragmentation? Assuming there may be fragmentation, would there be much of an impact to be concerned with? Would allocating the memory in the way I've shown force you to call IntPtr.ToInt## to obtain pointer offsets from the overall allocation pointer, and therefore force you to check the underlying architecture to ensure the correct method is used*1 or is there a better way? (ToInt32/ToInt64 depending on x86/64?)
*1 I read elsewhere that calling the wrong IntPtr.ToInt## will cause overflow exceptions. What I mean by that statement is would I use:
Dim anOffsetPtr As New IntPtr(arrayBufferPtr.ToInt## + (loopIndex * <arrayElementSize>))
I've read through a few articles on the VB.Net Marshal class and memory allocation; listed below, but if you know fo any other good articles I'm all ears![URL]..
Convert C# Class's Byte Array Values Into Integer Array?
Jun 22, 2010A c# class's single dimension byte array contains socket level instrument sensor data as per:
public static byte[] frameData
VS 2008 : Checking Existence Of Byte Array Inside Another Array?
Jun 2, 2010is there is any direct method or function in array class that can check if any given byte array is a subarray of other array?or should i loop through the each byte of main array to see if smaller array exists in that or not?
View 2 RepliesUpdating Array Length While Looping Array
Oct 9, 2009I am working on a code that should capture the color of a pixel in a bitmap and then check if the 8 surrounding pixels have the same color. If the checked surrounding pixel HAS NOT the same color it will be ignored, otherwise if it HAS the same color, it should check for its own 8 surrounding pixels and so on.
To do that, I have created an array that starts with a single entry (the x,y coordinates of the initial pixel). So, when a pixel with the same color is found it is pushed to the end of the array. I used a for each loop supposing that VB would keep looping until the end of my array - and since it is growing, the last position of the array would be always pushed until I have not more pixels to be checked.
The problem is that VB is not respecting it, and is considering my array as if it had just 1 entry. Seems that it catch the size of the array when it enters the loop, and regardless the fact I have pushed new items to the array it doesnt keep looping it.
How can I force VB to update the end of array position while looping it? Although I think it wouldnt be necessary, here it goes the code I have so far...
Code:
Why Does The First Element In The 2d Array Determines The Length Of An Array
Jul 4, 2010[Code]...
This adds 1 and 2 to list. My question is why does the first element in the 2d array determines the length of an array and if we want to get the length 2nd index then what will be the method for that?
VS 2005 - MaskedTextBox - If The Length Of The Text = 14 Characters, Enable The Reset And Start Button
Jan 2, 2011I am using the MaskedTextBox and I am wanting to check for the following:
1. If the length of the text = 14 characters, enable the reset and start button
2. If the length of the text < 14 characters, enable the reset button, disable the start button
3. If the length of the text = 0 characters, disable both buttons
I am able to get most of it to work but when the length = 0, the start button is disabling like it's supposed to but the reset button is staying enabled. Any ideas? I have been looking at this code for hours and can't figure out why this is.
Here is the code.
vb Private Sub mtbClientPhoneNumber_TextChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles mtbClientPhoneNumber.TextChanged 'Make sure that there is a phone number entered into mtbClientPhoneNumber. ValidateUserInput
[CODE]...
To see the form in action, you can see it here. The reset button isnt disabling when length = 0
Convert Array In String To Array In Byte?
Oct 7, 2009I have an array defined As string and the value stored in site is like "7E", "A1" and so on. But in order to send out this array through serial port. I need to change the the array to As Byte instead of using As String. How can I convert it?
View 8 RepliesConvert Byte Array To Boolean Array?
Nov 4, 2010The following image or RTF file illustrates how I'm trying to transform an input Byte array into an output array of Booleans. This is basically what I have listed below. figure out how to get from one array to the next while shifting values of bytes within 8 byte groupings to shift low order to high order or vica versa. What I mean by that is best seen by looking at the illustration of actual input an required output. The reason for this is that the hardware devices have registers and the display which can be seen in the links above needs to convey the disabled sensor cable cell locations.
[Code]...