Create Functions In Functions
Jul 1, 2011
I'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.
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Dec 6, 2010
What 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).
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Jan 29, 2007
1) 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.
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Feb 19, 2009
While 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?
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Mar 4, 2009
Is 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()
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Jun 19, 2009
I have had no experience with the VB .Net framework. I'm quite comfortable with VB. I wish to create a DLL out of some code which performs some calculations. Is it possible to create DLLs which can export functions using VB .Net? (I read somewhere that we can only create 'ActiveX' DLLs and cannot export functions out of it)
This link [URL] does give a method of creating DLLs by replacing the Linker of VB with a new Linker which can add the '/DEF' field while creating the DLL. Is this doable for VB .Net as well?
Also, the DLLs I want o create will be used by VBA codes in Excel Workbooks. Another way I think it could be done is to put the code in a Module inside a workbook and use it as an add-in. I need to create approx. 150 such DLLs, so I'll have to create 150 separate Add-ins. (Thoguh each add-in will only be loaded when it's required.)
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Nov 26, 2009
is there a way to dynamically create functions at runtime?
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Aug 21, 2008
The exact error that was thrown was a MissingMethodException,and was caught like
thisExceptions.Domain.GeneralException was caught Message="UpdateVendorFileProcessingWeek, Method not found: 'Int64 DataAccess.Manager.VendorFileHistoryManager.GetVendorFileHistoryID( Int64, System.DateTime, Boolean)'."
Source="Domain"
[code]....
there's a series of shared functions being used;everything compiles and builds ok - it's only during runtime that the error is thrown;the code itself DOES NOT use reflection to find any methods (but obviously the frameworkis doing some reflection)?
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Apr 15, 2010
I'm trying to create a .dll in VB Express with multiple functions and subs.
For the .dll program, I create a class module with:
Public Class Class1
Public Function ReturnOne(ByRef MyVar As Integer) As Integer
[Code]....
Upon execution, it tells me that it cannot find the entry point in the .dll.
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Sep 11, 2009
I am currently in the proccess of making a calculator, i have added all the functions i want, (+, x, / and - plus = obviously), but the problem is, i cannot do something like, "4+5x2", I can do "4+5" but i cant make 1 function mix with the others.
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Mar 6, 2010
I'm wondering how I can go about creating something like a header file to contain some verbose functions I don't want to have to look at after I get them created. Something like in c++ like..
#include "classfunctions.h" to hide all the nasty stuff you don't want anyone to see.
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Oct 22, 2010
how to implement UI, BL and DAL in a project the way that I see it as a requirement for some projects. The way I am able to do a project now is from a form create an object of a class in which there are properties and functions that do database selects, updates and deletes. Looks to me that doing a project like that is separating the UI from the DAL. In an update button click event I may call Obj. Delete (txtCustID.txt) for example. I don't understand the part of further breaking it down to include a Business layer; in which a vb solution is made up of three solutions.What goes in the BL?Does the BL call the DAL?
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Feb 9, 2011
I am attempting to have my program select a file, create DataTables and then perform some other functions. I want to be able to open another file and re-do the same steps.The problem I am having is that I add columns to my Datatables and when I try and to open another file while one is already open I get a message that a column of xyz is already added how do I properly "clear my datatable" or perhaps that isnt even the correct approach? Here is the code I have that Opens a File
HTML
Private Sub OpenToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles OpenToolStripMenuItem.Click
[code]....
This was working at one time but after adding to my project I must have placed something in the wrong place inadvertantly or it has soemthing to do with adding columns,?
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Oct 26, 2009
When you refrence a Function like this one:[code]You may want to be able to get more out of that, like this.[code]So how would I be able to add subs or functions onto a sub or function like that?
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Sep 20, 2009
How to create a Paint program with all the functions of Microsoft Paint?
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Feb 1, 2011
I have made quite a good library for calculating Math problems like Quadratic Equations and many other. Now I met a friend, and hes programming a little in VB, and we were thinking if it is possible to import my functions from C++ to his code, so he can call them, when they are needed, so we can make a calculator? How can we do that?
Edit: My friend is using VB.net
Edit: My library is organized in free functions.
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Jul 27, 2010
I am not sure if i am using these in the correct manner. Basically i have an app that downloads a file from an ftp server (i am kinda cheating cos i am using chilkat). Now if i put the code directly in the form i can get it to do a progressbar.value = ... in it['s own sub.What i decided to do was stick my ftp download parts into a dll i created. Created a function within the dll and i have a return on that which returns the message 'file downloaded' or 'no file to download'. But can i return a value to update the progress bar as it goes when the code is contained in a dll? Or am i totally missing the point and how to use dlls?
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Jan 6, 2012
I have a code which I call many times in my soft,its an external exe commandline file with arguments,Here is a piece of my code
Dim processgetver As New Process()
processgetver.StartInfo.UseShellExecute = False
processgetver.StartInfo.RedirectStandardOutput = True
[code]....
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Jun 21, 2010
I want to ask help from you guys, about on how to use the listview functions in vb.net. I also just starting to study about the vb.net for my object-oriented programming. Please help me in writing the codes for a simple listview.
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Mar 13, 2011
The following syntax is valid VB.NET code
Dim myCollection As New List(Of Stock)
myCollection.Add(New Stock(Guid.NewGuid, "Item1"))
myCollection.Add(New Stock(Guid.NewGuid, "Item2"))
[code]....
How can I accomplish the same thing in C#? I have tried...
myCollection.FindAll(bool delegate(Stock stock) {
if (blah blah) {
}
});
But it appears I have somehow structured it incorrectly as I get the following error. "Error 1 Invalid expression term 'bool'"
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Mar 28, 2009
How do I check which functions are in a dll I don't who's contents are unknown to me? I am looking to use a certain function and I have a couple of dlls and I don't know in which one it is are its name. So i need to be able to show all function available in a dll and their parameters.
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Nov 22, 2011
I'v got 3 functions that I'd like to combine into 1. There is only one line in each function that changes. can think of a few ways off the top of my head, but not sure which is "the best", or "proper way" to accomplish this.
Private Function CheckQuads(ByVal QuadNumber As Integer) As Boolean
Dim intArray(3) As Integer
Dim x As Integer = 0
[code].....
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Dec 13, 2010
We know some functions in dll files and can use them but if we haw a dll file and dont know functions names. is there a way to get the functions name and their parameters
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Jul 19, 2009
I am new to visual basic and currently doing my major project on sending sms using visual studio 2005. I want to create it in window application. I have search the net but I could not understand it. I have download some of the project that the net has found for me but when i test it the receiver did not received any message but the application have come out the popped out box saying "message send".
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Mar 1, 2010
I have a DLL library, but I am not familiar with it. How can I get its usage in vb.net?
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Mar 7, 2010
Does VB.net have anything built in for graphing functions? Linear, quadratic, cubic, log, and absolute value functions would be my main needs. I would want to display the functions on a graph whose x- and y-axes both go from -10 to +10, with grid lines.
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Dec 22, 2009
I am fiddling with the code here: [URL] I had a couple errors when I copied/pasted it into my project. I dimmed a couple variables, now the squiggle lines are gone, but I'm not sure how to call the functions in the project? Do I use a Lable or a TextBox? How do i make this work?
[Code]...
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Feb 6, 2008
I am working on a migration project of vb6 to vb.net, in vb they did some string actions with left, right, mid functions. How to achieve the same in vb.net.
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Jun 4, 2012
How do you use the e.graphics functions? I have visual studio 2010 professional installed. I opened a windows form project, in the code window I type e., there's only End. or Enum., no e.! Do I need to import something at the beginning, or do I need to open certain type of project to use the e. graphics class of functions?
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Oct 28, 2009
I have a visual basic file with a number of functions I want to use inside my XSL. I can build it as a dll and reference in my XSL project but I don't know how to reference it in my XSL file. I am using visual studio.[code]...
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