How To Generate XML File From Array Of Structs
Apr 30, 2012
I need assistance generating a xml file by reading values from an array of structs.
my struct looks like this:
public structure myStruct
dim ID as int
dim myArray1 as boolean
dim myArray2 as boolean
dim myArray3 as boolean
dim x as int
dim y as int
I have several instances of these structs. I also have universal variables that are declared outside of the structs. I am looking to generate a xml file like this:
[Code]...
But how would I assign the values of each element by reading them in from the struct? Or do I need to use the XmlSerializer Class instead?
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Mar 22, 2009
I have an assignment where I must read the information from a text file into an array of structs, so that when a part number is input, the correct price will be displayed.
the file is a text file named shoeinfo.txt
it looks like this: BZB34,40.99
BZJ25,54.50
JMM97,14.99
[Code].....
unfortunately I am unable to figure out how the code is to be read into the array. i.e. item(0).partnum = BZB34 item(0).price = 4099D
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Aug 2, 2011
i'm lost on how to do this inline.It's easy to say
Dim X as Integer = new Integer(4) {1,2,3,4}
but i'm lost on:
Structure ThisType
[code]....
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Apr 1, 2009
I have been searching for a while now, but I still can't seem to figure this out. I wrote a rather large program, and to make things more efficient I started to create structs to store more info in a variable.All was well replacing my old code with new code, till I reached a certain point and found that blindly using a loop of integers to access the indexes of the array wouldn't work anymore... I need to access a specific struct by the information contained in a single variable within the struct (like a hashtable key), but can't seem to figure out how.
Is it possible for me to go through my array indexes in a fashion like this?:
Dim myArray(TableCount) As myStruct
Dim TableName As String = "SomeTable"
[code].....
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Apr 14, 2010
I am making an application that randomly generates numbers. I then have to find out if those numbers are even or odd. Then place them in the corresponding array ( EvenNumbers() or OddNumbers() ). Then display the random numbers array then the even and odd numbers array. I am up to the point where I have the generated numbers and can tell if they are even or odd, but can't get them into an array. I am trying to do it like this....
[Code]...
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Feb 3, 2011
Generating random numbers in an array HELP
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May 3, 2011
I'm really struggling with the following pinvoke call. I've tried numerous different ways of doing this but still no joy. The call runs through, but I get a 'Bad parameter' message back with suggests there is something wrong with the struct, since I've ran through a c++ example of this code and the parameters are all correct.
[Code]...
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Aug 25, 2009
i am using vb.net and i would to send some structs to a C++ tcp server.The problem is the structs i am sending might contain other structs.[code]Lets say i want to send FirstStruct over to the C++ Server.
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Dec 2, 2009
I'm working on some interpo between VB6 and VB.NET and I've hit (another?) brick wall.I need to pass an array of "stuff" between VB6 and VB.NET. This contains an ADO recordset and 4 string values. There could be any number of these 5 items passed, so they will have to be an array of whatever.Seemed to me that in VB I should create a Type and in .NET a Struct, then it should be easy. However...
On running the VB app it fails to start with an error "Function or interface marked as restricted, or the function uses automation type not supported in Visual Basic"
[Code]...
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Mar 10, 2010
I try to generate 10 random integers and store it in an array(9). Then I split the array into half by converting it into string. My code can compile but it sometimes work and most time cannot work. I don't know what is the problem....
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[Code]......
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Dec 12, 2009
I'm trying to make a Bulls and Cows type game, I was able to do it fairly easily with javaScript, but VB is killing me. I can get the array 5 slots long with random numbers, unfortunately they're all repeats. when I try getting no repeats I run into infinite loops, exponentially increasing array lengths, and just plain old arrays with 5 numbers randomly generated, but with repeats.
I'm trying to do this with loops, in JS I did it using regular expressions
Here's an example of my code.
Public Class Form1
Dim intRand(0) As Integer
Dim RandomClass As New Random
[Code]....
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Apr 2, 2012
I need to generate all combinations (not permutations) in VB .NET, I've been search and all I found is for permutations (some says combinations but when I was try it, all are permutations).
What I need is to generate combinations from string array:
Dim data_array As String() = {"one", "two", "three", "four", "five", "six"}
I need that: If I say just 1 length, it must returns:
one
two
three
four
five
six
If I say 2 length, it must returns:
oneone
onetwo
onethree
onefour
... etc ...
twoone
twotwo
twothree
... etc ...
And continues til end with all combinations. If I say more length do it as well.
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Mar 8, 2010
I wanted to generate random integer and put into array(9). My code is as follow:-
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Randomize()
Dim rand As New Random
[code]....
I wanted the results to be ans = 3412657846 But instead I get ten ans results. So that means the rand.Next generate ten integer to array(0) and so on.I just want one random integer in array(0) and so on....
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May 7, 2010
i want to generate a code with 2d-dynamic array to make a matrix?
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Jul 28, 2011
i want to generate random numbers which will be put in an array and displated in a grid. the user has to provide a lower and upper bound. method overloading also has to be used in order to generate the numbers
[Code]...
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Jul 22, 2009
That is the question. Is there anything you can do with c++ unions that you can't with c# Explicit structs?
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Oct 28, 2011
I would like to store references to a bunch of structs in a collection. The general scaffolding looks like this:
Structure myStructType
Dim prop1 as String
Dim prop2 as int
End Structure
[Code]....
now this doesn't work, because it's referencing the same memory. What I would really want is the 'pass reference by value' behaviour that is also used for reference types, so that I can easily keep producing more of them.
Is there any way to fix this other than to make the structs into classes? Is this actually a proper way to use structs, or do I have it all wrong?
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Aug 24, 2009
i would like to generate a very simple report with some images and text and i am wondering if there is a way to generate a pdf file with vb.net?
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Feb 24, 2012
I have created a program that merges files and I have decided to output the results as an HTML document so that it is legible. I have achieved this output using System.IO.StreamWriter and creating a textfile with all the html formatting and in-line CSS and saving it with the .html extension like so:
[Code]...
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Mar 19, 2011
how do I generate a .txt file containing such string?
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Nov 16, 2011
I would like to generate a .jpg file by using vb.net desktop application. Example: the program will paint a simple rectangle with grey color, and produce as a physical image file (.jpg).
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Dec 8, 2009
I just converted the following code from c# to vb.net. It is functional and works correctly with my company's firmware/devices. My next challenge. Previous serialport code used much more readable structs which where then converted (after building a packet) into byte() automatically as part of the serialport encoding. (this is my understanding)How could I
1. morph byte arrays 'ToSocket' and 'ToMTP' below into structs and
2. convert into byte array for Socket.BeginSend(byte(),.....) to stream out to remote devices?
Imports System.ComponentModel
Imports System.Text
Imports System.Net.Sockets
[Code]....
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Mar 23, 2011
The problem is that it only adds to the text file it's suppose to read from, but instead of adding 4 strings into my listbox. Can someone figure out what's wrong with my code, and provide me the correct syntax for it. This is in a sub after click of a button in vb.2008.
[code]...
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Dec 10, 2011
Example :
If a got word "don" then file will contain
ddd
ddo
[code].....
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Jan 7, 2010
I would like to generate a static URL based on a few parameters.The page serve the file for downloading is called CertificateDownload.aspx ,I am generating the download link in Report.aspx.These 2 files reside on the same physical folder.I do not like the replace method ,but I could not think of another way of doing it.How can I improve my code or what is a better way of doing it.
I need the absolute url to be displayed as text in the web browser.[code]...
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May 26, 2011
I'm trying to generate an MD5 and SHA1 hash value for a given file with the following:
Imports System
Imports System.IO
Imports System.Security.Cryptography
Imports System.Text
[Code]...
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Oct 13, 2011
I am in search of a way to access a files thumbnail preview and push it to a picturebox on my form. I have the code below that works for jpg files, however it does not work for say a word document's thubnail. displaying the word documents thumbnail in a picturebox would be great!
Dim myBitmap As New Bitmap("C:Doc1.doc", True)
Dim myThumbnail As Image = myBitmap.GetThumbnailImage(40, 40, myCallback, IntPtr.Zero)
PictureBox1.Image = myThumbnail
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Jan 18, 2010
I am writing a windows desktop application in visual basic and I need it to connect to a SQL database, take a rows unique id, and using that number generate a file from the binary data that is stored in the SQL database and save it to a file directory. The part that is hanging me up is the creating the file from the binary SQL data.
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Jan 29, 2009
Do anyone know how to create a .exe file from my vb.net project? I do not want the one in the /bin folder. This is because i want it to be able to run my application from a single EXE file.
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Apr 12, 2010
I am programming a service for a company that will log valuable performance data on machines that they lease out to other companies. It is critical for them that this information is as safe as possible and that it can only be read by us (a program created by us that is). I already made a trippledes encryptor that works fine but i still have the issue that a person can delete or move or corrupt the file if he somehow manages to get out of the operation software and gain acces to it.So my question is: Can i lockdown a file and make it as good as impossible to change the file or delete it other then by being the admin or the program that is generating them?
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