Arrays Passed To Functions?
Jan 27, 2009Arrays Passed to Functions
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How Are Parameters Passed To Functions By Default
May 22, 2012[code]Is j passed as value ByVal or by reference ByRef?Or does it depends of the data type? What if I have a complex object passed as the value?
View 2 RepliesPassing Arrays To Functions?
Apr 18, 2010I'm trying to pass an array from a 2D Array to a function that takes a 1D array, but each time I do I get the error Number of indices is less than the number of dimensions of the indexed array.. I know using a structure would solve the problem, but unfortunately the assignment is to use a 2D Array instead of a structure. I've declared the 2D array as such:
Const MAX_ARR_SIZE = 63
Public HouseholdCollection(MAX_ARR_SIZE, 2) As UInteger
Const IDENTIFICATION_CODE = 0
Const MEMBER_COUNT = 1
VB, Passing And Returning Arrays From Functions?
Nov 27, 2009I ran into an error when trying to do this:
Code: ChartBuffer = GetCurrentChart(ChartBuffer) The error says Conversion from type 'Integer()' to type 'Integer' is not valid.
Apparently I have some type casting issues, the problem is I'm not trying to cast any types at all. I'm trying to set one array chartbuffer equal to the array returned from GetCurrentChart.
[Code]...
In the constructor of this class I am trying to set the buffer equal to the loaded chart because if I try to write information to a buffer that isn't already initialized, and then save it, it will overwrite stuff that might already be saved in the file as 0's or something, and I don't want it to do that. To prevent this from happening I'm simply going to initialize the buffer in the constructor by setting it equal to the loaded chart. Finally after that is all done I can write new information to the buffer and save it to the file without writing a mostly empty buffer (full of zero's) to the chart that is saved with information in it already.
Program Using Arrays And Functions - Highest / Lowest Number
Jun 14, 2012I am new to using VB2010 (and coding in general). Also brand new to these forums . Okay so I am making a program that: allows the user enter the number of customers served for each of 12 months into an array. The application should calculate and display the following statistics: total number of customers for the year, the average monthly number of customers, and the months with the highest and lowest numbers of customers. Use inputBox to get user input. Do not accept non-numeric or negative numbers.
The problem that I am having is that I do not know how to display which was the best and worst month. I imagine I need something that targets the highest/lowest number and finds the text in the corresponding index but I'm not sure how to do this.
Define Initialized Arrays In Functions And Return Values Based On User Input Visual Basic?
Apr 4, 2011In this application I need to allow users to enter a month as integer (1-12) then use integer tryparse to validate that input, that seems to be the easy part. I need two create two functions, one that returns the name of the month and the other returns the number of days in that month. The arrays are supposed to be defined and initialized within the function so that the main program can take the user input and call the two functions, then return the appropriate values as output to labels. I am not sure how to declare the arrays in their appropriate functions and then how to call those functions to retrieve the right value from the function.
View 1 RepliesCan A Generic List Of T Be Passed To Function Similar To Way An Array Is Passed?
Mar 23, 2012I want to pass a List of T where T is an object I've created that has about ten properties (strings, dates and integers).The lst passes to the function successfully. I am also passing an New T of the Object (itm as T).I can see all the values (see image below), but because it's generic I cannot seem to retrieve the property values and I cannot figure out how to iterate through the properties of each itm as they are retrieved in the For Each.[code]
View 10 RepliesVS 2008 : Have A Class Where The Functions Of The Same Name Are Both Instance Functions And Shared Functions?
Dec 6, 2010What I am trying to do is have a class where the functions of the same name are both instance functions and shared functions.
Public Shared Function Get...(byval xx as xx)
and
Public Function Get...
The Public Function uses a Property xx created in the constructor, whereas the Shared Function has the parameters (byval xx as xx).
Excel Maths Functions And Calls To All DLL Functions Documentation?
Jan 29, 20071) Is it possible to access the Excel mathematical functions without actually opening Excel?
I was thinking of through a DLL WinAPI call or maybe a delegate function or smaller program?
2) Does anyone know of a MS link or area that gives instruction on "how to" use every function of every Windows DLL at all?
Or for all those that Microsoft have chosen to document online at least.
VB6 Used Recordsetsor Arrays - .Net Framework In VB2010. Datasets, Dataviews. Tableadapters, Arrays. Enums ?
May 9, 2010In VB6 I load a recordset containg all of the records (6 fields per record)in a table into an XArray and then manipulate the records in the array and then write them back to the original table. The array issorted by the first field (1 to maybe 8000 or more) I need to find records in the array by an ID field and then move them (because of some external criteria that happens many times) from say number 400 to number 375. Then all of the other records between 375 and 399 were renumbered up 1 to fill the gaps left by the move.
The XArray worked well as it could find and also move to a next record easily to facilitate the revisions to each record quickly. Everything is done in VB6 in code and nothing visual needs to be shown to the user until say 2000 of these external changes are complete. What is the best, most efficient way to do this in the .Net framework in VB2010. Datasets, Dataviews. tableadapters, arrays. enums ?
Integer Arrays - User Enter In Big Integers Using - Two Parallel Arrays
Dec 10, 2009My assignment is to have a user enter in big integers using what i think is two parallel arrays. I got this far but now im stuck. I think i need to actually convert the text box input into an array but i do not know how to do that. I am all over the place in this project.
'Created/ Revised by: Jessica Falcetta
'Cap 204 Final Project: Big Integer Project
'Project Purpose: To calculate large integers through parallel arrays
[CODE]...
Passing Arrays Through Fortran Dll From App Turning To Single Element Arrays?
Feb 2, 2010I have a VB.net console app and I am opening a function in a dll written in fortran. I am passing 3 arrays through the function by reference. When they come back out the otherside they ahve all tunred to arrays of only one element And that element is 0.I read on the internet somewhere that when doing this kind of thing it is a good idea to only pass the first element of the array into the function.I tried changing my function declaration to accepting single elements rather than single dimensional arrays, and now the arrays are the same length before and after the function call, but they don't seem to be changing at all, so i'm not sure that this is working
View 1 RepliesVS 2008 Arrays Displaying States/searching Arrays?
Oct 30, 2010the statement Dim state(49) As String and maintain a list of certain states. The list of states should always be in alphabetical order and occupy consecutive elements of the array. The buttons in the program should give the user the following options: (a) Take the state specified by the user in a text box and insert it into its proper position in the array. If the state is already in the array, so report. (b) Take the state specified by the user in a text box and delete it from the array. If the state is not in the array, so report. (c) Display the states in the array. "
Private Sub states_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
state(0) = "Alabama"
[code]....
Differences Between VB Functions And Convert.To* Functions?
Feb 19, 2009While converting types, I have found myself using both VB functions and BCL Convert.To* methods.
E.g.)
Cstr() vs. Convert.ToString()
CInt() vs. Convert.ToInt32()
CDbl() vs. Convert.ToInt64()
etc...
Are there any subtle differences that should be noted?
[2005] MembershipUser Functions - See Exactly What The Functions Are Doing?
Mar 4, 2009Is there a way to see exactly what the functions are doing. What i mean is there a way to see the class? I know what it does, i just want to know the code.
For example the function: Membership.FindUsersByName()
Comparing Arrays :: Possible Without Iterating The Arrays?
May 3, 2010I was wondering if anyone knows a built in method ( LINQ say or a LAMBDA expression or other way ) that you can compare2 arrays - collections that would be valid for an equivalent 3rd array - collection which is a combination of the 1st two.
As an example consider;
* * *
A L E
[code].....
Sort Three Arrays (the Other Two Arrays Are In Sync With The First)?
Oct 13, 2009How can I sort three arrays so they are sorted together (the other two arrays are in sync with the first)?unsorted unsorted unsortedarray1]CODE]....
View 9 RepliesCreate Functions In Functions
Jul 1, 2011I'm redoing a program for my company and my boss wanted me to created the entire thing through functions...
For the task I wanted to know is it possible to have functions within functions?
Sort of like in C where we would have nested structures?
Its a FILE I/O, with robot commands, moves and verifications....
So I would find the line in an excel spreadsheet where it moves, the coordinate, put it into an array.
Take the actual results store them into a two dimensional array...etc, etc....
Another function would eventually compare the results with the moves, and within a tolerance.
ENV Not Passed To Cmd File From VBS?
Jun 7, 2011I'm very new to vbs scripting and am trying to set a System envinonment variable which will be used by a subsequent cmd file which is called by the VBS script which created the ENV varible.The vbs script creates the varibale correctly but the called CMD file does not find it. I thought a child process inherited its parent env settings. I understand the child can not change the parents env. why the cmd file does not see the variable, am I using the wrong shell command in vbs to call the cmd file or something?Here is the VBS script that simply sets a System varibale and the CMD file below which attempts to log it.on error resume next
Dim objShell
Dim objEnv
Dim usbDrive
Set objShell = WScript.CreateObject("WScript.Shell")
[code]....
Check If 24hours Has Passed?
Feb 1, 2012Ok so I tried to make an application that will open a URL ONLY if 24hours has passed since it had previously opened. My idea is that it will save the time/date to a .txt (unless there another way which im completely missing?) when it is opened (only open if the current time is the saved time/date + 24hours) and rewrite it after every time.
When I say I tried, I mean I opened a project, realised I had no idea what to do and stared at the Form for 10minutes.
Format Changes When Passed To The Database?
Jun 7, 2011I have kind of a problem in a database well its suppose to save a date but like a string, well more like a char type, and i need it that way to do reports.So there to tables Ventas and VentasDD so they have the same information what ever is introduced in the form both those tables have the information, the information is introduced simultaneously.So this is how its supposed to be save like VENTAS image the VENTAS date is saved correctly But the when its saved on VENTASDD table the format for some reason changes even if its the same type and text and everything, like the image shows, the first record i modified it manually but it is displayed like the other 3 records
View 1 RepliesGet The Instance Of The Object Passed To It?
Jan 18, 2011I am working on a ASP.NET MVC2 website. For learning. I am working with the Visual Basic language.
In a view I would like to do this:
<%: Html.EditorForEnumeracion(Function(v) v.combustible%>
So, I created an HtmlHelper extension method:
Imports System.Runtime.CompilerServices
Imports System.Linq.Expressions
Imports System.Reflection
[Code]....
Get Value Of A String That Is Passed As Parameter?
Oct 19, 2011I need to pass in parameters to my sub/function. When the parameter is passed, the value in the string, I would like to get the value evaluated and sent as:
Dim strParams As String = drRow(0)
' drRow is a row from DB Table. the value in drRow(0) =
' "@FromDate=""" & Now.AddDays(-10).ToShortDateString & """&@ToDate=""" &
[code].....
Highlighting Passed Text Of RTB
Apr 15, 2012I'm trying to make a sub that will highlight the text of a RTB that is passed.
Here is the code:
Private Sub SearchAll(ByVal selectedRichTextBox As RichTextBox)
Dim startPos As Int16 = 0
Dim matchPos As Integer = selectedRichTextBox.Find(TextBoxSearchFor.Text, startPos, selectedRichTextBox.Text.Length, RichTextBoxFinds.None)
selectedRichTextBox.SelectionBackColor = Color.Yellow
[Code] .....
Keep ASP.NET ViewState Without Being Passed Via QueryString?
Jul 19, 2011I have a form with its method being "get" that passes the variables and their values to the query string, respectively. However, it also passes the viewstate variable in the query string. Now, I have a very long viewstate value on the given page, and if passed in the query string, the viewstate variable will cause the page to error out, due to "too long of a query string" which happens to also be too long of a url.
I cannot merely remove the viewstate variable - I need it. But I need to pass the viewstate variable along via some method other than get when the form is submitted, while the other inputs of the form (the non-hidden inputs) are appended to the query string.
ListView DataKeys Not Being Set / Passed
Aug 12, 2011I am in the process of switching over a control from a GridView to a ListView, but am stuck on accessing the new ListViews DataKeys. My ListView is setup as follows[code]...
View 1 RepliesLooping Through Several Passed Parameters With Same Name?
Sep 25, 2011i am passing paramters from one page to another all witht he same name...how do i look through them?
dim sHtmlBody
sHtmlBody = ""
for i=0 to Request.QueryString("name").Count
[Code]....
this is what i am doing and it works. But how do i access the individual name
Dim Name = Request.QueryString("Name")(i)
Passed To Constructor Of A Delegate?
Aug 31, 2011While creating instance of a Delegetae there comes a intellicence AddressOf , Sub and Function .
AddressOf signifies the address of the function or Sub , what does Sub or Function signifies ?
See If A Passed Uielement Has A Particular Property?
Apr 2, 2009I need to see if a passed uielement (control) has a particular property like borderthickness, itemsdources, backgroundcolor and so on
View 2 RepliesSub Parameter Is Being Passed An Incorrect Value?
Nov 27, 2009The parameter to a sub is being passed a value like 501/500, of coarse this value should be converted to 1.002. Unfortunately, the actual value being passed to the parameter is 1.0.
[Code]...