[2008] Reading Singles From A File?

Feb 19, 2009

I have a file - (called 38.dat) it contains a 3600 numbers (single) which are undelimited. This file cannot be read by notepad so is not in text format but saved a floating point numbers. how could i get VB.net to read the file and save the values to an array the size of 120 x 30?

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.net - .Net And Multiplication Of Singles?

Nov 12, 2009

Dim result as single = 0
result = CType("8.01", Single) * 100 ' result=801.0 as expected
result = CType("8.02", Single) * 100 ' result=802.000061 --- not expected
Further to the above
result = 8.02 * 100 ' result = 802.0 as expected

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Converting Singles/Doubles To 8 Bytes?

Jun 13, 2010

I am tasked with the job of reading the X and Y coordinate of a Text label from a "save file" of a 2D CAD drawing. I found the exact position of the coordinates in the file, but I still don't understand how to read them 100%. They aren't simple ASCII characters.First, I read the file byte by byte, and load them into a textbox seperated by spaces as numbers from 0 to 255. Here is an example X and Y coordinate

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Strings - Singles Out Each Of These Words And Makes It Into An Array?

Jan 8, 2012

i have a text document that is a list of words. How do i code using substring so that it singles out each of these words and makes it into an array?

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File I/O And Registry :: Reading File 2008 Express

Nov 19, 2008

I'm new to Visual Basic. I'm trying to get this code to read a .txt file line by line. If the only thing that the line says is "B" it should add one to the intTotalBoys integer and so on with G for Girls, F for Fathers, and M for Mothers. I'm not sure why it won't work. [code]

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VS 2008 Reading A CSV File?

Oct 19, 2011

I need to read in each line of a file that is comma delimited and I know how to do this.ut for this file, some of the values have quotes around them that contain commas and others do not. For example, the name field has "Doe, John and Lisa" and the other fields do not. How will this be handled? Will it read that whole field in as one or will it still seperate it as seperate fields?

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VS 2008 Reading A XML File?

Aug 26, 2009

i have my .xml files written like:

vb.net
<?xml version="1.0" encoding="utf-8"?>
<hiddenFields>

[code]....

I'm trying to read the values but i'm not having much luck, i have this:

vb.net
Function functionLoadHiddenFields(ByVal fileLocation As String)
Try

[code]....

i'm not to sure how to get the individual values?

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VS 2008 Reading An Xml File

Nov 12, 2010

I have a program where I'm writing an xml file and later the same program is to read it. I'm writing the file just fine and get this output:

[Code]...

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VS 2008 Reading From A File?

Aug 13, 2010

I'm trying to read lines from a file using:Dim FileLine As String = ""Dim File As Integer = FreeFile()

Open "C:ext.txt" for Line Input # File But I get this error: 'Open' is not declared. File I/O functionality is available in the 'Microsoft.VisualBasic' namespace.

I tried to add Microsoft.VisualBasic as a reference, but it didn't work.

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[2008] VB Reading From File ?

Jan 24, 2009

here is my current code.

[code]...

Now that aint workin. What i want it to do is read and compare usernames and passwords of text box 1 and 2 with 2 text files on my website. I am not caring about encryption at this piont so plz dont reply about the security of this method i know the risks. What i need is some source code i can look at witch has a simular method to mine

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VS 2008 : Reading A Structure From A File?

Apr 12, 2010

I have several quesions about reading/writing structures from/to files.In a scenario when I open a data file having its own header and variable data fields I create a structure that represents a header consisting of 9 bytes:

Public Structure HeaderInfo
Public DataField1 As Integer
Public DataField2 As Byte
Public DateField3 As Integer
End Structure

I'm using this code for the time being:

vb.net
Public Function ReadHeader(ByVal FileName As String) As HeaderInfo Dim ReturnInfo As HeaderInfo Try Using br As New IO.BinaryReader(New IO.FileStream(FileName, IO.FileMode.Open, IO.FileAccess.Read, IO.FileShare.Read)) With ReturnInfo

[code]....

The first question is - can I fill the structure directly somehow? Some structures are very long and filling them this way will be tedious. For example, if I know the length of the structure I could read the needed number of bytes in a byte array and somehow marshal these bytes into the structure.I can use Marshal.PtrToStructure, but then I would need to get an IntPtr of my byte array. I use <Serializable()> attribute for my structure.

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VS 2008 Reading 32 Bits From A File?

Apr 9, 2010

Here's what I have that Doesn't work (I have one button, one OpenFileDialog, and a label named Status):

Public Sub ProcessBytes(ByVal Bytes() As Byte)
Status.Text = "Status: Processing . . ."
Try

[code].....

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VS 2008 Reading A Text File?

Jan 30, 2010

I've got a program which reads a text file, in this file there are 2 or 3 lines between paragraphs. However when displaying in my textbox on my form i have 14-18 lines. Why? and how can I remove them?

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VS 2008 Reading And Writing To XML File

Jun 30, 2010

Ok so there is an XML file for a program that already exists that stores a list of files along with other information.I need to open this file and read the file names and then potentially add files to it if they DO NOT already exist in the file.It is very important that I not wipe the XML file and have to write it from scratch every time.

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VS 2008 Reading File Error

Oct 26, 2009

I made this

vb TextBox1.Text = GetWebSiteSource("my url")
Dim lines As New List(Of String)(IO.File.ReadAllLines(TextBox1.Text))
Tsteamid1.Text = lines(1)
IO.File.WriteAllLines(TextBox1.Text, lines.ToArray)
vb

[Code]...

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VS 2008 Reading File Offsets?

Jan 23, 2010

I have some files that contain strings and an image.I have an offset 0x068 (&H68) this is constant between all the files theoffset contains the offset of the info in the file example would be 0xE9400question being how to seek to 0x068 then seek to the new offset of say 0xE9400?then starting from 0xE9400 get Int from offset 0 size 2 bytesimage from offset 32 size 512 bytesThe icon is a 32x32 picture formed out of 4x4 16 color tiles and a single 16 color palette. Pallet offset is 544 size 32string offset 832 size 128 chars 256 bytes (unicode)I can read the first part of the header and return the string there

Dim header1(11) As Byte
Dim fileOpen As IO.FileStream = IO.File.Open(TextBox1.Text, IO.FileMode.Open, FileAccess.Read)

[code]....

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Reading XML File From Visual Studio 2008

Feb 11, 2012

I have XML which has following content. I am providing only small portion of code below. I need to read this XML file from Visual studio 2008 and display the contents on windows and web.

<Loop
Name="AT"
Count="INF"

[Code].....

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VS 2008 Access Denied When Reading File From CD

Jun 27, 2011

I'm having trouble reading a file into a filestream from a CD. I get 'Access to the path denied'. Works fine when reading a text file from a local drive, but getting error from CD. Dim fs As New IO.FileStream(filename, IO.FileMode.Open)

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VS 2008 Deserialize : Error Reading XML File

Mar 29, 2010

I get "Implicit conversion from "Object" to "Missed_Calls.MySettingClass" error message.

Dim objStreamReader As New StreamReader("program filesmissed_callsSettings.xml")
Dim p As New MySettingsClass()
Dim x As New XmlSerializer(p.GetType)
p = x.Deserialize(objStreamReader)
objStreamReader.Close()

How can I transform "P" to and object ?

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VS 2008 HEX Editor - Reading Binary File?

Dec 1, 2010

Here is my code for reading a Binary file:
Dim fs As New FileStream(filepath, FileMode.Open)
Dim str As String = ""
For d As Integer = 0 To l - 1
Dim byt As String = Hex(fs.ReadByte()).ToUpper
fs.Position = d
str+= byt
Next

str becomes:
20202CB962AC5975B964B7152D234B
But when I open the file in a HEX editor, it's:
202CB962AC59075B964B07152D234B70
Why are the 2 different?

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VS 2008 Read File Not Reading Fully?

Nov 6, 2010

I have several files that I am reading in and 'scrubbing'. The scrubbing is simply taking certain HTML tags and changing them - no big deal.When I read in the files (one at a time), they read and then I scrub them.The files stop reading mid-way *no matter what* the encoding type There is no stop character or anything, it is simple HTML and I do not see any reason why the file isn't being read I have attached one of files that is having a problem and the code is quite simple:

Dim oRead As New System.IO.StreamReader(Dir & "" & FN, Encoding.ASCII)
EntireFile = oRead.ReadToEnd()

[code].....

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VS 2008 Reading A Custom File Format?

Oct 20, 2009

The file format has already been explained to me, and I can easily view it in notepad to understand it. It's basically a text file with a fancy extension and what not. The only problem is that I need to read it and pull a certain span of data from it.Here's the basic format:

8200
3251
1

[code].....

This is the first 10 lines, which is useless data for me. However, right after the first 10 lines, is a span of an unknown quantity of lines that I do need that are formatted like so:grassC:Program FilesMicrosoft GamesHalo Custom itiondatalevelsestlood_creekitmapslood_creek groundThe first line is the name of a bitmap assigned to the ID, while the second line is the path to the bitmap.Finally, after the unknown span of lines, there are two lines that go in this order:01Which I can safely assume at this point that the list no longer needs to be read.What I need to do is be able to open this file, skip over the first 10 lines which are completely useless, and then pull out the unknown gap of lines, and then stop reading when the line is '0', or at the end of the list.

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VS 2008 Reading And Editing Text File?

Jul 23, 2010

I have a text file called: list.txt This is a list with all kind of lines like this:

14II_ARM_S_CLO_CLO_CLOVERIDS_PROPITEM_TXT_01194611IK1_ARMORIK2_CLOTHIK3_CLOAK=TRUE==200050000====PARTS_CLOAK=1==11=1===11_NONE Ofcourse every line has different numbers and letters.

The complicated bit is this:

I want to let Button1 check whats in TextBox1.Text and search "list.txt" for it. When it has got a match (there is only ONE of these numbers in list.txt).For example TextBox1.Text = "IDS_PROPITEM_TXT_011946". And I search for that so I find the line above. Now I want 3 other textboxes which show the 21st, 22nd, 23rd column/number after "IDS_PROPITEM_TXT_011946". And they should be editable by changing those 3 textboxes and clicking the apply button.How can I best do this, and please give a little example.

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VS 2008 Reading BigEndian Data From A File?

Jul 28, 2009

Is there a way to set BitConverter to produce Int32 values from BigEndian-encoded bytes?I feel like there might be a way to temporarily "set" the encoding to BigEndian before calling BitConverter, but I haven't figured it out.Right now I'm just reversing the 4 bytes before calling BitConverter, I guess I could create my own function that adds the bytes with the appropriate multiplier, but it seems a little inelegant if it can be done simply with BitConverter.

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VS 2008 Reading XML File That Is Posted Online?

Oct 27, 2010

I am trying to read a xml file that is posted online through my windows app. What I am trying to do is get a value of one of the elements and then set that value to a string in my windows app.

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VS 2008 Writing And Reading Text From File?

Nov 11, 2011

This is what i wanna do and dont really know how:

When i click button "StoreX":
if X.ini does not exist it will be created at the same folder as application
NumericUpDown1 value stored at X.ini line 1

[code]....

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[2008] Reading A Very Large Text File

Feb 1, 2009

The following code suppose to:

1. Read line-by-line a txt file with more than 500,000 lines, (each line 521 characters long)

2. extract an ID No from the line

3. query from a database for LCCIStatus

4. concatenate the value of LCCIStatus to the line

5. write the line to sample.txt

My problem is, this code works perfectly with the test file of 8000 lines but fail with the actual files which have over 500,000 lines. FYI, the test file contains data which I cut and paste from the actual file.

[Code]...

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Searching Then Reading A Line In A Text File, VB 2008?

Mar 7, 2012

I need to be able to know how to search a text file in VB for a particular line and then display it. the files I'm trying to use are set up as: ID, Name, Address, Birthday, Pay-Roll TypeSo I need to know how to search the file for the ID number and then display the rest of that lin

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VB Express 2008 - Reading File And Use Data And Average Them Out

Nov 29, 2009

I have a text file that the first part of my program writes data to, but for this second section, I need to read that file and use pieces of that data and average them out. The text file is setup up with 90 lines of data starting with the first 9 lines containing data and the 10th is a blank space. I need to read line 6, 8, and 9. I need to Loop through the file so I am using the Do While Loop. Where I am confused is when using the For...Next Loop to tell the program to read a specific line. If you have any info that can lead me to the answer that would be great. I would prefer you just point me in the right direction because I would very much like to somewhat figure it out in the process.

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VS 2008 - Connection String Bug - Reading A Tab Delimited File

Aug 2, 2009

I want to read a tab delimited file so i set up a data reader with the following connection string: [Code] However when I do this it doesn't seem to delimiter at the tab characters (I cannot work out why it is breaking up the data where it is). the first few lines of the csv are in the attached "dbamstr.txt" - the select statement I am running is: "SELECT * FROM dbamstr.txt".

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