Convert C Strut {TCHAR Sz[256]} To Structure
Mar 17, 2010A DLL export a function where a (input) parameter is
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VS 2008 Convert The XML Structure Into A Class Structure?
Apr 25, 2010I'm having a problem that's driving me crazy; I can't understand how to convert the XML structure into a class structure (that I want to use to hydrate a XML document).
The XML document looks like this:
xml
<?xml version="1.0" encoding="utf-8"?>
<artists xmlns:opensearch="http://a9.com/-/spec/opensearch/1.1/" xmlns="http://www.spotify.com/ns/music/1">
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File I/O And Registry :: How To Get Str TChar
Dec 20, 2010I am trying to convert a VB6 App to VB.Net and I am stuck on this VB6 part. [code] The str_TChar looks like this.In the VB6 version it looks like the str_TChar is the length of the file in bytes, which is the sIMG variable and the string is in ASCII code?Can anyone tell me how to get the str_TChar in the VB.Net version to look like the VB6 version please?
View 4 RepliesHow To Get TCHAR Data Variable In Application?
Aug 17, 2010I got this strange behavior when I try to access the TCHAR data variable in VB.Net code.There's a C++ native dll function which returns the data value in TCHAR*. Now When this function is called from VB.Net application I get only the first character of the returned value.
Suppose the return value from dll function is "Hello World", I get only "H" in the VB.Net application. I tried to store the return value in String variable also in StringBuilder, but I get the same result.
Convert Structure From VB6 To .Net?
Dec 8, 2009I need to convert structure from VB6 to VB.Net. This struct is used to pass to a c++ dll. The problem is that the following struct size in VB is 113, but for some reason in VB.Net is 116.
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Convert Structure To XML File?
Aug 17, 2010is there any way to convert a structure to a XML file? I searched in this forum and in Internet but only found conversions from classes to XML files. I also found a working conversion (or better serialization) from structure to binary file but this is not what I want. My structure looks like this:
Public Structure MyStruct
Dim bFraming As Boolean
Dim CtrlBus As Integer
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Convert C++ Structure _DATE_TIME To Date Value
Sep 30, 2009Does anyone have some code that will easily convert this C++ _DATE_TIME date/time structure to a VB.NET date value ?
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Convert Structure To Byte Array In .NET?
Aug 17, 2009I wish to write a structure made up of fixed length strings to a file using y.Computer.FileSystem.WriteAllBytes or the like.I am using a VB6 project with fixed length strings that I have converted in to VB.Net.
Structure Record
<VBFixedString(22),System.Runtime.InteropServices.MarshalAs(System.Runtime.InteropServices.UnmanagedType.ByValArray,SizeConst:=22)> Public tim() As Char
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VS 2008 - Convert String To Structure Point?
Oct 4, 2009I want to know how I can convert string to a point ( {X=150, Y=150} ) I'm having a little trouble figuring this one out.
View 2 RepliesConvert And Print Structure Contents To A Form In Visual Basic?
Oct 27, 2010I am trying to print the contents of a structure onto a print page in Visual Basic(visual studio 2008). However my for each loop generates a conversion error?
Public Class Form1
Structure IncomeRecord
Dim IDVal As Integer
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Convert Forum Date And Time Strings To DateTime Structure?
Jun 7, 2011Is there a framework class that converts the partial day strings on these forums to a DateTime? Examples are "a few seconds ago", "19 minutes ago" and 3" hours 26 minutes ago",
View 4 Replies.net - Convert A Datatable To A Data Structure To Be Read By MS Stacked Chart Control?
Aug 18, 2010I have a chart control (stacked chart to be more precise) and a datatable that contains 3 columns. I want to bind them into a stacked bar chart. below is what the datatable looks like:
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I would have the Resource column as the x-axis, and the value (hours worked) of each Queue as the y-axis (stacked)I've tried just binding normally and I'm getting an error saying that it's the wrong data type.
Convert A VB6 "User Defined Type" To A .Net Structure?
Jan 22, 2012how to convert a VB6 "User Defined Type" to a VB.Net Structure. I'm lost on the internal array declaration and fixed length strings.Here are my VB6 Type Declarations.
In BTSegment how do I declare fixed length strings in Structure?
in BTStatus how do I declare Seg(MAXSEGMENTS) As BTSegment
'Index Segment Structure
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Structure Inside Another Structure Receives Null Reference Error?
Jan 5, 2012Module Module1
Public Structure structure1
Public TRANS() As structure2
End Structure
Public Structure structure2
Public X() As Integer
End Structure
End Module
Class Structure - Large Structure That Has Lots Of Properties ?
Jan 5, 2010I'm new to VB 2008 after having spent a long time with VB6, so I apologize if this is a stupid question. But I'd really like to have this straightened out.
Let's say I have a pretty large structure that has lots of properties.
Code:
Now say that I want an internal database with about 10 instances of this structure total, describing, say, 10 different products that a store sells. When these values are loaded from a database, they remain totally static. (However, they can be different each time a program loads)
Now say that I have a class. Each instance of this class is a type of that BaseProduct structure. Meaning, each instance of the class pertains to one of the 10 types of products that the store sells. However, this class has additional properties that pertain specifically to each instance, which are not static.
Code:
Now, the problem here is... If I have 200 different transactions, each one contains an instance of BaseProduct. BaseProduct is HUGE, and is largely redundant (only 10 types possible), so I think it's a little silly to include a whole copy of it with EVERY transaction. However, the Transaction class really needs information regarding the base product it pertains to. Is there a way to, instead of declaring a New BaseProduct in the Transaction class, to simply make one of the properties of the Transaction class a pointer to a BaseProduct variable?
In VB6, I would accomplish this by making a BaseProduct(10) array, and then giving each Transaction an ID number referring to an entry in that array. But in VB 2008, using class structure, this is impossible. I can't define the BaseProduct(10) array outside of a class in a namespace, and if I define it in the actual application's form, then the class loses modularity since it relies on the application that's using it.
Converting Structure Within Structure To Byte Array For Socket
Aug 29, 2009I am trying to communicate with an external device and i am trying to send a byte array to the external device via sockets but i am always getting a response the message size is too small so i am not sure what i have done wrong. Between the data type there should be no alignment present and all numbers are represented in little endian format. The char array is not null terminated as mentioned in the protocol specifications.
I have to send data based on a struct that embeds 2 other struct. So here's my vb.net code for the struct used to convert to byte array and the sending part.
Public Structure MESSAGETYPE_OIP_Login
Dim Header() As COMMANDHEADER
Dim UserName() As PSTRING
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Invalid Structure Size When Marshalling C Structure To .NET
Apr 14, 2012I'm experiencing a problem with the following c-structure:
typedef struct tagTEXTUREPROP
{
DWORD dwSize;
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The Marshal.SizeOf obviously calculates a size of 76 and it works with the DLL function, but it leaves me with some bad feelings.
Arraylist Of Structure Within Array Of Structure?
May 23, 2010I want to make a structure within a structure. Basically it will appear like this:
Structure ID
dim CardType as string
im CardCode as string
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Assign Array Of Structure To Another Of Same Structure?
Oct 12, 2010In Vb.net I am trying to assign an array of structure to another array of same structure[code]...
View 2 RepliesStructure With A Structure Array?
Sep 12, 2011I have two structrures
Public Structure PhoneScheduleEntries
Dim Count As UInteger
Dim PhoneSchedule() As PhoneScheduleEntry
End Structure
Convert - Bytes[i / 2] = Convert.ToByte(hex.Substring(i, 2), 16)
Feb 22, 2010See where my vb.net equivalent of a working c# assignment statement is not working?
bytes(i / 2) = Convert.ToByte(hex.Substring(i, 1), 16)
Here's the c# followed by the vb.net function.
private byte[] StringToByteArray(String hex)
{
int NumberChars = hex.Length;
byte[] bytes = new byte[NumberChars / 2];
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And the vb.net that is throwing the error within the for loop
Private Function StringToByteArray(ByVal hex As String) As Byte()
Dim NumberChars As Int16 = CShort(hex.Length)
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How To Add To A Structure
Jun 11, 2010I have created a public structure:
Public Structure LogicalEdge
Dim sTypeEdge As String
Dim dTotalLengthOfLines As Double
Dim lstLinesInEdge As List(Of Line)
End Structure
In my code, I create a new list of this LogicalEdge:
Dim myListOfEdges As List(Of LogicalEdge) = New List(Of LogicalEdge)
After, I create a new LogicalEdgecontainer:
LogicalEdge = New LogicalEdge
I set one of it's properties:
LogicalEdge.sTypeEdge = "endcap"
Now, I add it to the list
myListOfEdges.Add(LogicalEdge)
After looping a few times, i want to set one of the other propterties for the same item in my LogicalEdge, but when i do this:
LogicalEdge.dTotalLengthOfLines = 80.77
To look at the values in the collection, I loop through myListOfEdges collection; and I see that dTotalLengthOfLines doesn't pick up the value i have assigned to it. i thought I might need to identify which item in myListOfEdges to add it to... so i tried this:
LogicalEdge = myListOfEdges.Item(i)
LogicalEdge.dTotalLengthOfLines = 80.77
But that didn't work either.
.net - Opposite To A Structure?
Jun 29, 2011I'm sure there is an answer to this somewhere but I'm clearly using the wrong terminology in my searches, so I apologise in advance for this inevitably being a duplicate.Take the function CType. Clearly I can cast (or at least try) a given object to a given reference type. The function will not work if trying to cast to a structure, i.e.CType(myObject, Integer)
will generate a compiler error. This I'm sure most often crops up when working with generics:
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What is the opposite? I want only reference types so that CType doesn't fail. I can't overload the T As Structure with a plain T because it considers them identical signatures, so surely there's a keyword I'm missing somewhere?
Add A Structure To A Collection?
Sep 18, 2011Recently I found that I'm not able to instantiate a structure for an array:
Dim mObjectLists() As New objectLayout
Ok, fair but It's an easy way to store a bunch of data in an array instead define a class. And after that I tried to define this:
Dim mObjectLists() As Collection
And add structures to the collection. But it says you should instantiate the reference object first. I searched about creating own Collection based on the base collection class but I think It's wasting time to write a code with class inheritance instead the first sample.
Add A Structure To A List
Sep 27, 2011add a structure to a list
View 2 RepliesC# - Use A Structure Rather Than A Class?
Apr 10, 2009In a recent project I was working I created a structure in my class to solve a problem I was having, as a colleague was looking over my shoulder he looked derisively at the structure and said "move it into a class". I didn't have any argument for not moving it into a class other than I only need it in this class but this kind of falls down because couldn't I make it a nested class?
View 5 RepliesDllImport Using A Structure?
Jan 14, 2009I have an unmanaged C++ dll that I am using in my program. I have successfully used several functions using DllImport. I have run into a problem with one function that takes a structure as input. I originally tried building a structure to pass to the function, but this was unsucessful. So i created a class to define the needed structure. When I pass this, I get no error message, but also no data is passed back to this variable. I have a C++ example of how to use this function, but I don't know how this translates to VB 2005. Here is how they call it in C++ .
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Get Name Of All Variables Within Structure?
Jun 28, 2012I have a structure type, as below
Code:
Public Structure StrFolder
Public isActive As Boolean
Public NameFolder As String[code]....
I would like to retrieve and print each variable name within a given structure (not its value). For example:
StrFolder(0).Name should print "isActive"
StrFolder(1).Name should print "NameFolder"
StrFolder(2).Name should print "URLIDNumber"
StrFolder(3).Name should print "DateOfFolder"
etc..
I would also like to know each type of an item within a structure. For example:
StrFolder(0).Type should print "Boolean"
StrFolder(1).Type should print "String"
StrFolder(2).Type should print "Integer"
StrFolder(3).Type should print "String"
etc..
Getting A Structure From Memory?
May 15, 2009What is the best way to get a structure from memory, I know the format:
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The structure is 53 bytes until the chat text, the message length is determined by one of the structure variables LineLength, so what is the best way to get that and put into into a structure?
Iterate Through The Structure?
Mar 26, 2009I have a structure with types ranging from thread's to control.what im looking for is a easy way to iterate through those item like For eachbut i couldn't get for each to workis there a way to do it
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