Pass Structure Variable Array To Function?
Feb 2, 2012
I have a structure to hold a student name, an array to hold 5 test scores, and an average score. I have created an a array of structures for 6 students. User input is setup through text boxes. I want to calculate the average for each student. I have made a function to do this. What I am having trouble with is how to pass the array of test scores to the function.
Here is what I have so far:
CODE********
Public Const intMAX_STUDENTS As Integer = 6
Public Const intMAX_NUMTESTS As Integer = 5
Public student(intMAX_STUDENTS - 1) As StudentData
[Code].....
View 3 Replies
ADVERTISEMENT
Mar 3, 2012
Im having a very difficult time trying to pass an vba array ive built from ms- access vba to a .net function.I don't have a com problem I can reference the library just fine from vba but and i can call a simple function from vba. however my problem exist when i attempt to try to pass an array to the vb.net function. vb.net code
View 3 Replies
Mar 1, 2012
Im having a very difficult time trying to pass an vba array ive built from access vba to a .net function. I dont have a com problem I can reference the library just fine from vba but and i can call a simple function from vba. however my problem exist when i attempt to try to pass an array to the vb.net function. vb.net code
<ComClass(ComClass1.ClassId, ComClass1.InterfaceId, ComClass1.EventsId)> _
Public Class ComClass1
Public otag As String()
[code].....
View 1 Replies
Jul 8, 2009
I have a variable that I am trying to get to iterate up by one, i.e. X starts at 0 x+1 on first pass thererfore its at 1 then x+1 on second function call therefore x=2 and so on. I've tried the different loop and for commands but I cant get one to stay until the next function call, does it need to be a global variable? I'm sorry if this is in poor form or improperly formatted, definently trial by fire going into the object oriented world.
View 9 Replies
Dec 18, 2009
I don't think I fully understand passing values from a sub to a module. Here is what I'm trying to do (problem is at the '****):
[Code]...
I think I've seen something like this before - where the actual function returns a value. Is this possible? Or would I have to pass an integer variable from the sub to the function, and then return it back to the sub?
View 3 Replies
Dec 12, 2009
I have been trying to correctly pass the value of a textbox as a variable to a function that reside in my App_Code folder when triggered by a click event. I can't seem to get it right.Here is the code behind for the aspx page with the textbox and the click event:(Error is on 4th line)
Public Sub btnCouponCode_Click1(ByVal sender As Object, ByVal e As System.EventArgs, Optional ByVal CouponCode As Char) Handles btnCouponCode.Click
lblSubtotal.Text = Calculations.CalcSubTotalPrice().ToString("C")
[code]......
View 4 Replies
Apr 24, 2012
I've this code, but there is a problem with setting values. I get "null object" error. how to work properly with functions.
Public Structure Results
Dim Nickname As String
Dim Result As Integer
[Code].....
View 5 Replies
Feb 6, 2012
I have a structure named StudentData, it consists of a studentname, an array of testscoresand the student average. There is also an array of structure objects for a total of 6 students. I have the header, column heads, the student names and the averages printing when I click the print page event. I have tried multiple ways of setting this up to get the test scores to print, these are the structure array variables. When I put in the code to process the arrays testscores, I receive a run time error that I don't understand
View 2 Replies
Jun 5, 2012
I am using XML literals to parse files that contain data. I was wondering if there is a way to take a section of the xml file and pass it as a variable to another function...
<XML>
<DATA>
<STUFF>
<blahblah>sdfsdf</blahblah>
[code].....
I know with XML literals I can use ...<STUFF> and get the info out of that section, but how can I take an entire section of the xml, like MORESTUFF and set it as a variable to pass to another function that can parse that xml?
View 3 Replies
Nov 7, 2011
I'm a beginner when it comes to Visual Basic coding and I need some help with an error I'm getting. I'm trying to pass a structure array to a function to figure out a student's grade. I'm getting the error that 'QuizOne' is not a member of System.Array. Here is my code:
[Code]...
View 3 Replies
Dec 22, 2009
I have a function that returns a date. I want to use a modal window to get the datte value from the user and pass it into the function.
View 1 Replies
May 23, 2012
I have created 2 forms (Parent & Child), i want to store the unique textbox value to a variable into the parent form.
[Code]...
View 2 Replies
Nov 20, 2009
I want to pass the entire array to the next function[code]...
View 3 Replies
Jun 12, 2009
i need to pass array value to a function , here are the details
function MyTest(byval a as integer, byval b() as string)
if b is nothing
msgbox("no array")
[Code]......
View 3 Replies
Sep 29, 2010
What I am trying to do is automate a telnet session. I have working code that uses Sendkeys but I dont see a way to pass my array variable of IpAddresses to sendkeys. Whats the best way to accomplish automating a telnet session and reading in an array of Ipaddresses. Have I overlooked something in what seems like it should be simple? Or will I have to use sockets?
View 3 Replies
Oct 29, 2010
I have a multidimensional array (not jagged array) that saves data from rows and columns of an excel spreadsheet. After it completes recording the data from Excel, I need to pass the array to another function.I understand how to pass a jagged array, but not a true multidimensional array.
Can someone point me in the right direction? I've done some searching on this site, and others, but most of the info only includes single dimension arrays or jagged arrays.
View 1 Replies
Dec 7, 2010
I would like to pass array to function as parameter. Here is an example for variable that is not array:
[Code]...
View 5 Replies
Jun 25, 2010
I have a simple VB.Net Form that acts as an interface to a control library with a public API.
One of the API calls takes an Array of UIntegers ByRef:
Public Function Get_Values(source_id As Byte, first_value_address As Byte, number_of_values As Byte, ByRef valuesOut As UInteger()) As Integer
After the call, valuesOut will hold a list of values number_of_values long from source_id starting at first_value_address.
There is a hardware driven limitation that the max number of values returned is 15 regardless of requested length. I need to get 28 values into an array from my VB.Net code.
Is it possible to send only part of an array variable to the function similar to this C code?
uint[28] values;
Get_Values(0, 0, 15, values);//get first part
Get_Values(0, 15, 13, &values[15]); //get second part of data
View 3 Replies
Jun 10, 2011
How can i pass and access the array variable in Stored Procedures
View 3 Replies
Nov 11, 2010
I have several parameters consisting of separate System.Byte() arrays. What I need is the syntax for a function declaration where the parameter is an array of arrays - I do not want to delve into System.Collections, and it's my preference not to CType each array into an Object and then back into a Byte().
Problem I'm having here is that:
Public Function MyFunc(arrayparam() As System.Byte) As System.Byte()
accepts a single-dimensional Array of individual Bytes.
Then Public Function MyFunc(arrayparam() As System.Byte()) As System.Byte()
View 12 Replies
Jan 31, 2010
I should be able to pass an array of numbers, calculate average, lowest number, highest number, and standard deviation.the function returns an array containing the results. I dim public data
Public dataArray() As Double
Public DataIndex As Integer = 4
Private Function CalculateData(ByRef dtArray() As Double) As Double()
[code]....
I get an "error Number of indices is less than the number of dimensions of the indexed array" stats()If I add a dimension there like stats(Dataindex) I get an error "Value of type '1-dimensional array of Double' cannot be converted to 1-dimensional array of double".
View 2 Replies
Aug 29, 2009
I 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
[Code]....
View 2 Replies
Jan 3, 2012
I am trying to code for is as follows: Construct a two dimensional array and enter into it a sales id number followed by twelve variables which represent sales totals made by the sales agent. this must provide space for five agents. I can declare the proper array and have done so as follows
Dim Sales (4,12) As Double. I also crafted a click event which will count from 1-12 (which excludes the sales id number) and disables the sales id number so it cannot get used. [Code]
What I am trying to do is setup a function within the same click event procedure which stores the current SalesAmount as a variable in the array and moves to the next slot to get ready to store the next SalesAmount. However I have no idea where to go from here. I have tried a ton of different pieces of code which are either all littered with errors or do not return a value when I call it. Calling the total of each row and the total for all rows is something I need to do for display and I am not one hundred percent sure I know how to do that either.
View 1 Replies
Oct 12, 2011
I want to make an numerical integration method with takes in an analytic function and integrate it over a specific interval. For the numerical integration procedure I want to use some procedures in nr.com. The problem is that these are programmed in C++ and they uses functors to pass a function to the integration method. How can I do this in VB 2010?
I want to initialize the function (i.e. set a=1,b=0 for function y(x)=a*x+b) and then pass the function to the integration method. Then when the integration method call the function it only calls the function with one parameter (i.e. x since a,b is already set)
What is the best way to do this in VB2010?I want to make a general integration method where I can pass any single valued function and integration limits.
I have just started using VB, and from what I have found so far it seems like the tools you have is
- to us a delegate for the function
- to use a lambda expression for the function
- send a pointer/adressOf
- to create a function class/structure and submit this to the function
As for now I am most inclined to create a function-class. But I am not really sure how.F.ex. I make different classes for each "uniqe function" I want to integrate, but how can I pass them to the integration function when I need to specify the argument type in the integration-function-call?This seems like a basic problem which applies to many Math operations, so I think it would be very useful to clarify this.
View 2 Replies
May 23, 2010
I want to make a structure within a structure. Basically it will appear like this:
Structure ID
dim CardType as string
im CardCode as string
[code]......
View 13 Replies
Oct 12, 2010
In Vb.net I am trying to assign an array of structure to another array of same structure[code]...
View 2 Replies
Sep 5, 2010
Using Visual Basic 2008 Express. I need to pass a variable to another form. Or else make the variable visible to both forms.
View 4 Replies
Feb 29, 2012
I'm trying to implement a grid based RPG style inventory (teaching myself by making a game keeps me focused ) and I have an array of "item" objects. Part of this array is a picture box, which I then lay out in code to display the inventory. how to detect when one of these picture boxes is clicked. However, I'm having a little trouble getting my head around the Directcast command.
When a box is clicked, I would like the function 'boardclicked' to pass over not only the picture box, but the whole object it is associated with it, so I can print these values out the screen (detailing the objects name, value etc) [Code]. As you can see, this passes the picture box element of the object, but I'd like to be able to pass the whole structure, so I can retrieve the other associated values.
View 3 Replies
Feb 19, 2011
I'm creating a Data Layer for a Web Application and in one of my functions, I need to pass in a Structure full of Customer info. This Data Layer is essentially a DLL. My problem is that I'm not sure how to do this.Below is my code and what I want to do.
[Code]...
View 5 Replies
May 16, 2012
am trying to pass a structure that contains 2D arrays as Byte from VB.net to a C++ dll. The dll returns the structure with the 1D arrays filled. I am using UnmanagedType.ByValArray to pass the arrays from VB.net to C++.
Sample :
----------------------------------------- Structure -------------------------------------------------------
<Serializable(), StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Ansi, Pack:=1)> _
[Code].....
View 2 Replies
