Is there a way to calculate BesselI functions in VB 2010 Professional. I have calculated this in Excel but do not want to have to open Excel to do this because my clients use Excel 2000 up to Excel 2010 and the syntax is different. Plus it is slow and inelegant. [code] where CM and NTU are floating point variables.
View 2 RepliesI have spent the past week trying to get my copy of Visual Studio 2010 Professional to work on my Windows 7 Professional 64-bit laptop, with no avail.
Every time I try to create a new form using Visual Basic, an error message saying that Microsoft Resource File To COFF Object Conversion Utility has stopped working, and I cannot even run the new form to see if my coding is correct.
I have managed to find that it has something to do with the cvtres.exe file, but after a solid hour of research, I have found numerous others with a similar problem, but no solutions.
I have done registry scans, reinstalled Visual Studio about 3 times and have done many other suggested fixes that have done nothing but waste my time.
I would like to enquire how I would go about population a chart (bar graph) in VB 2010 Professional?
I am pulling the information from a MS SQL Database.
I'm working now at a project with another person, but every time when we want to put our projects together this process is time consuming. I worked soon with an already done SVN in a java project which.
My question is: how can I make something similar for my project? I'm programming in vb.net using visual studio 2010 professional. There is a tool already?
I have seen a similar thread. But it is not answered. The Auto uninstall tool link given in that answer is not working. I want to uninstall .Net Pro Trial and going to install express edition. can anyone please tell me the order of programs to be removed?. Or please give the link for Auto uninstall tool for .Net Pro 2010.
Note: I have some software which are based on .Net Framework. so I should not remove the Framework. Is it possible to install Express Edition without removing this Framework?.
i have recently installed Visual Studio 2010 Professional and I am currently coding in VB. I am trying to display a bar graph (pulling from MS SQL database) for certain criteria, but I do not have a "Chart" option in my Toolbox section. I have a licensed software and do not know why the "Chart" option is not present.
View 11 RepliesI wanted to know how to write a query in data grid control. So far I've seen alot of forums but they are related to either 2008 vb or vb 6. how to write a query in the datagrid control which will search for an id in the database of access and present it.
View 2 RepliesI'm currently making a Web Browser, and I was wondering how I can save History after I close the program/form and clicking on the site I visited last and navigate to the link with a single click?
View 2 RepliesWhat 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).
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?
View 4 RepliesWhen I try to code in VB2010, I usually unmark the reference to Microsoft.VisualBasic. Because I do not want to use the legacy functions of VB6. I want to complete walk in .Net path. And I have found some alternatives for the old VB6 functions. But the rest not. Where can I find the list of those methods or classes (alternatives for the VB6 functions) ?(For eg: when I tried to find the difference of 2 dates, I couldn't find any other alternatives. So, I came back and used the Microsoft.VisualBasic reference for using DateDiff())?
View 24 RepliesI came about these two functions (ReadHEX and WriteHEX) that, obviously, read a hex offset or write a hex offset of a file. However, these functions were written in VB6. The main thing I'm not understanding is how to open a file (in a filestream I presume) and then to either read or write a certain offset from the file. I'd also need to convert the string I'm writing to hex before I actually right it, but I've got that under control. Here's the current functions as they were written:
[Code]...
how to use a function from an assembly reference.when using:
Dim __asm As System.Reflection.Assembly
__asm = System.Reflection.Assembly.LoadFrom("c: estsomedll.dll")
this dll should have a few public methods, lets say it has a helloworld() with no args and a hellowworld2(byval x as string). How to call them?
I have a project to calculate how many day is there before 05/12/2010.
View 10 RepliesI am having a really hard time with the hour(TimeOfDay) VB Express 2010 command, is there any one reading this that could enlighten me on this problem please.My local machine time is in standard time, but the VB hour(TimeOfDay) command sent to a text box on my form is in Military time, is this a bug or do I need to use another command that I am not aware of, or can I use the format command to force it to
standard time and if so how do I accomplish this task please as I have battled with this for few weeks now and I am all out of ideas as to the nature of the problem.
I know about the following:-format(TimeOfDay,"h:mm:ss") 'displays time in standard time with out a padded zero format(TimeOfDay,"hh:mm:ss") 'displays time in standard time including a padded zero!
format(TimeOfDay,"H:mm:ss") 'displays time in military time with out the padded zero!
format(TimeOfDay, "HH:mm:ss) 'displays time in military time including the padded zero!
how could I do the same with the format(Hour(TimeOfDay),"?") function I also notice that the minutes and seconds can include or exclude the padded zero, I would also like to have control over these two commands please.
I'm wondering if this is possible, I want to be able to call functions from within the program itself by means of an ArrayList? I want to be able to do something such as:
FunctionsList.Add(SomeFunction)
FunctionsList.Add(SomeSub)
For Each Function in FunctionsList
Call Function
Next
Would this be possible? It's important for a project I am working on.
In the TextBox1 I have the following numbers:5 4.1 6.23 0 0 7 7.924
Possible to calculate all the numbers in this way?
like replace all the "space" in "+" and get the answer or something?
I'm new to VB and i want to make a program that calculates with the text in the textbox.So in the first 3 columns you put the names yourself and the last column displays the names from highest to lowest points and the rows in the 3 first columns have points from 100 to 10 (highest to lowest). How let i calculate vb with these column and rows so i get the name with the best result in the "totaal" column?
View 2 Replies1) 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.
I am trying to calculate the number of years for my calculate age event handler, however i am apparently missing a method or whatnot because im trying to calculate the age , can anyone suggest help on this. I need to subtract years to get my age but when i try the birthdate.Subtract (currentDate) method i get an error about not able to convert from LONG?
So below is what I have.
Private Sub btnCalculateAge_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCalculateAge.Click
Dim currentDate As Date
Dim BirthDate As Date
Dim Age As Long
[CODE]
I have a dll. Instead of referencing it, I would like to be able to import its functions directly into my application. Anyone have a code to get started?
View 7 RepliesIn our VB6 applications, we added a few utility functions for tracking the amount of time spent in a function. We did this to track performance bottlenecks. Basically, how it worked was there were two utility functions:
StartTickCount() and EndTickCount().
You would pass the name of the function in each, and the functions would use a dictionary to get the tick count when StartTickCount() was called, and then subtract the tick count when EndTickCount() was called. This wasn't perfect because it didn't of course take into consideration that calls to get tick count takes time, etc, but basically it worked for our purposes. How to make sure to call StartTickCount() at the beginning of each function and EndTickCount() at each exit point:
Private Function SomeFuction() as String
' indicate the function started
StartTickCount("MyClass.SomeFunction")
' some logic that causes the function to end
[Code] .....
Anyway, is there any functionality built in, either through the VS 2010 debugger or in the System.Reflection namespace, to do something similar in VB.NET? Basically, what I want is to log the number of times each function is called, the total amount to time spent in that function, the average number of seconds spent in that function, and the maximum amount of time spent in a single call in that function.
I am porting an app from VB6 and I run into problems with references to functions and subs. Basically, let's say I have 2 classes added to the project, like this.
Public Class OOOOO
Public Shared Sub BBBBBBB(ByVal FileName As String)
...
Call CCCCCC()
Call DDDDDD()
etc.
...
End Sub
[Code] .....
I had to make the BBBB() shared to be able to call it from another function AAAAAA() from another class PPPPP. However, I get error on the references in the BBBBB(), that CCCC() and DDDD() have to be made also shared (so instead of 1 error I got number of errors).
When I tried to make them shared as well, I got tens and tens of errors due to other references of both variables and functions.
I use an access database and some queries return calculated fields resulting from
functions in the code module of the database These queries are not listed in the "Views" tab of the query designer when adding a tableadapter in the data source designer
I freely admit that I tend to avoid using API calls as much as possible I wish to use this API call
[Code]...
how to calculate "InvTotalTextBox" and "InvDiscountTextBox" values then show the result in "InvNetTextBox"..?
how can i do..?
three TextBoxes in a form
InvTotalTextBox, InvDiscountTextBox and InvNetTextBox
InvTotalTextBox is Binding with Table Field "InvTotal"
[Code]....
how to use the CryptProtectData and CryptUnProtectData functions of crypt32.dll in a VB 2010 application?
View 2 Repliesneed to know exactly how does the API functions Read/Whrite Process works. I'm so confused while working. I know that I have to work using something like sectors. But I don't know how. Can someone give me an example. I dont know hoe to do it. for an example, for you to give me. Create a basic programa with a button and a textbox the button searchs what is in the textbox in a process memory. Search the title of a program for example.
View 2 RepliesI've got a program that runs from one Windows form, Form1, with stuff declared all in that class: public variables, public functions, subs, etc. I decided that the form was getting cluttered, so I added one button to bring up a new form, Form2, and I put some of the buttons & check boxes for testing over there, so that Form1 can be more visually clean. Problem: when I go to put the code for the tests into the buttons on Form2, none of the public variables or subs or functions that reside in Form1 are visible in Form2. What statement/s do I need to add (and where) so that the public "stuff" that's declared in the class for Form1 is visible within Form2, please?
View 6 RepliesThe program I am trying to make is to automatically create a World of Warcraft Trial account to make the proccess a little bit quicker.The first problem I am having is getting the captcha to show up in the form.(The captcha will only show up on the site if you make one account and then try to make another one)?
View 24 Replies