Flexible Data Sets For Functions
Nov 12, 2009I have only 2 sets of "fixed" numbers used, that I need to be able to toggle between. Particularly, for array sizes/for loops. Is it best to use "Collections" in VB.NET to accomplish this?
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Create Something That Will Hold The Data And Will Allow The User To Add And Remove Sets Of Data?
Aug 2, 2009I have a program that simply checks if the account number and pass word match. And if not it allows you to create it. But i have no idea on how to create something that will hold the data and will allow the user to add and remove sets of data.
View 1 RepliesData From Access, Data Adapters & Data Sets?
Apr 19, 2011I have a basic application that allows pre-defined users to use the application.The Username & passwords along with some other basic user info is stored in a simple access dbIn my application I want a user to login, Username & PasswordI create a connection string, a data adapter and a dataset, I then need to validate the password the user has entered.Would it be best to query the access db directly, or the dataset?
View 5 RepliesLinking Data Sets?
Mar 26, 2012I need to link different arrays of data that I am gathering from different Select Cases.For Example:Araray A, B and C from Case 1Array C, D and F from Case 2 Note: Array C is common between two cases.I know in C++ I could have used Pointers and use SQL in Java.
View 1 RepliesCollect Two Sets Of Data From Two Different Databases
Feb 5, 2009I collect two sets of data from two different databases, This data is now in two collections. I then join/append the one collection to the other and then put it in to a list view.I really would like to order this list view by the first column without the click event.To make this even harder the First column contains Data that is DateTime and i have found that it orders the items by the day number and not the months or years or time.I have found one way but it then cause's me further agony when doing some checks upon the data within the listview later in my code. This answer is to rearrange the format to "yyyy-MM-dd HH:mm:SS" then using the listview.sorting = sortorder.
View 7 RepliesRegular Expression - Grab Data Between Two Sets Of IDs
Jun 3, 2011I have a regular expression that I use to grab data between two sets of id's for example:
<CLASSCOD>70</CLASSCOD>
The regular expression I use is:
(?<=<CLASSCOD>)(?:[^<]|<(?!/CLASSCOD))*
Which works in most case but when I have a single value like this
<CLASSCOD>N</CLASSCOD>
It says there are no matches.
The whole data string looks like this :
<STATUS>PRESOL</STATUS>
<DATE>0601</DATE>
<YEAR>11</YEAR>
<AGENCY>Department of the Interior</AGENCY>
<OFFICE>Bureau of Indian Affairs</OFFICE>
[Code] .....
.net - SerialPort Reads Are Returning Fragmented Sets Of Data?
Oct 17, 2011I have a USB device which creates a Virtual Serial Port on Windows. I am using VB.Net to write and read from the port. My device responds with specific sized set of bytes, but I am finding that SerialPort.Read(byte-array,offset,number-bytes) does not return the full number-bytes but it also does not timeout or generate an exception. Repeated calls return additional fragments (up to 3 calls required). Python code using pySerial does not have the same problem.So, what am I doing wrong here? Am I expecting too much?
Some scenarios are:I write a command to the port and expect to get 4 bytes in response. I get 1 byte first and then 3 bytes on the subsequent call.I write a command and expect 21120 bytes in response. I get 1, 12671 and then 8448 bytes in 3 calls to read from the port.
Here are some excerpts from my code:
Private Sub SetupVirtualSerialPort()
Dim portName As String = "COM" + (m_DeviceContext * -1).ToString
Const baud As Int32 = 9600 '7680000
Const parity As Parity = parity.None
[code]....
Append A Bunch Of Files Into Daily Data Sets?
Feb 16, 2012I am a newbie at VB.net and would like for you to review my code in order to improve its performance.My objective is to append a bunch of ".csv" files into daily data sets. Within a directory I have about 2500 individual text file (.csv). Each file represents minute intraday stock market data for an individual stock covering 5 days or one week of data. This means that each symbol has 1950 string lines..Here is an example of what a string line looks like: "2011-06-27,10:07,48.15,48.15,48.02,48.02,25421". Not that is relevant but these represent Date, time,Open, High, Low, Close & Volume. Since I have 2500 files within a directory; doing some math, I am processing 2500*1950 = 4,875,000 lines. This process takes me about 16 hrs to run.[code]
View 7 RepliesRecord Deletion - Customer And Booking Data Sets On My Form
Mar 15, 2012I have a customer and booking data sets on my form. customer id is a foreign key in booking table .but when i click delete button. it gives me an error: The DELETE statement conflicted with the REFERENCE constraint "FK_Booking_Customer". The conflict occurred in database "photoshoot", table "dbo.Booking", column 'Cust_id'. The statement has been terminated. Its a one to many relation between customer and booking. one customer can make many bookings each booking will belong to only 1 customer.
View 1 RepliesBuild A Flexible Generic Loader
Sep 8, 2009I'm trying to build a flexible generic loader. For example when my code loads I need to load country codes and processes to have them available for use throughout my program. I would like to do this in 1 routine. The code below works fine for country but I'm having problems modifying it to also work for Process. Anyone know how I would accomplish?
[Code]...
Employee Schedule - Use Dayoff (fixed Or Flexible)
Jun 21, 2010I am working in paytime software using vb.net 2005, i have a problem employee schedule creation. how to use dayoff(fixed or flexible).
View 3 RepliesCopy Excel Table To Powerpoint With Flexible Range?
Jan 11, 2010I have the following situation: Contents of an Excel sheet have to be displayed in PowerPoint slides. I have put this in a function where the following line copies the contents of the Excel table as a picture:
View 1 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).
Passing Data Between Functions?
Jun 8, 2012I would like to have custom methods to pass data between function, or to keep it in memory throughout the program.
Example:
Private function info()
Addr1 = addr1.text
Addr2 = addr2.text
City = city.text
[code]....
Could I run this function towards the beginning of the program and use it throughout until the form is disposed? I can't seem to get the information to stick once I get out of the function, I will need to use the same information multiple times throughout the application so I figured if I could make a function to keep the info rather than declaring the 5 lines in every option but anytime I call the method, it fills it correctly then when I get back to the main function the info goes back to 'nothing'. is it possible to pass data around between functions like you could in Java?
Mathematic Functions As A Data Type?
Dec 11, 2009I want to be able to have the user type in a function, say ,x^2 + 1, and have the computer store this such that it can be recalled and plug in a given value for x. For example, say they type in x+4, the program will then (in a bunch of different text boxes) return the value of x+4 when x = 1, x = 2, and so on up to x = 10. But how can I get it so that it will store x+4, be able to recall it and replace x with it's given value
View 2 RepliesSend Data With Subroutine Calls And Functions
Oct 28, 2009I am trying to send data and arrays using System.Object and System.Event. Lets say I have 4 pieces of data: date, y(1),y(2),y(3).
sub main(...)
Dim date,y(1),y(2),y(3) as integer
Dim obj as System.Object
Dim args as System.Eventargs
How do I organize obj with all the integer data above so I can send it to main2.
main2(obj,args)
end sub
Sub main2(obj as System.Object,args as System.Eventargs)
End Sub
And how do I apply this to (ByVal sender as System.Object, ByVal e as System.EventArgs). I am using VB.net 2005.
VS 2010 Using API Functions - Understand Data Types?
Sep 29, 2010I freely admit that I tend to avoid using API calls as much as possible I wish to use this API call
[Code]...
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.
Pass Data Between Subroutines And Functions Using Public Classes?
Oct 31, 2009I would like an overview of System.EventArgs. I have an understanding of System.Object where I can pass data between subroutines and functions using Public Classes. I am curious what EventArgs do?
View 3 Replies.Net Framework 3.5 And 4.0 - Uses Basic Math Functions And Display The Data In Datagridviews
Jul 1, 2010So im using the inno installer to set up my project and i found a nice script that will check and download 3.5 framework, but can't get it to work for 4.0 so my question is would i be able to compile my project in 3.5 and everything still work correctly?
My program just uses basic math functions and display the data in datagridviews. It uses webbrowser and other toolbox options. It doesn't use the registry and only creates one txt file.
Creating A Gridview And Gather The Data From Various Functions That Return A Type Of IEnumerable?
Feb 28, 2012I am creating a gridview and need to gather the data from various functions that return a type of IEnumerable. I've created gridviews using a dataset as a datasource, but how does one use multiple data sources(of IEnumerable) to populate one gridview? Like how do you combine all that into one dataset?
View 1 RepliesWhat Data Type Will Allow The User To Input 0 And Allow The Mathematical Functions To Work Properly
Mar 29, 2011I am currently using double data types. The problem I am encountering is that sometimes the user will have to input a value of 0 in the required text box and this creates an error. My question is what data type will allow the user to input 0 and allow the mathematical functions to work properly. Decimals maybe?
View 8 RepliesDifferences 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()
Add All Sets Of Icons To An Application?
Jun 21, 2010I have an icon file (32x32) and I added it as application icon in the properties and it is coming fine only if the view is set to "Medium Icons" else it is showing only the default icon. How can I add all sets of icons to an application so that my Icon will be visible in all modes?
View 2 RepliesControl That Sets A Variable To A Value?
Feb 4, 2010I have a simple control that sets a variable to a value. What I want to be able to do is check the value of this variable on another form.Here's the code:
[Code]...
.net - Auto Generate Gets And Sets From A Database?
May 3, 2009I am coming from VB6 and I am starting to convert an existing VB6 code to VB.Net. What tools can I use to automate this task?
View 3 RepliesForeign Character Sets And RichTextBoxes?
Jun 9, 2010I have some text in an .rtf file which uses a non-English character-set (it's chinese).When I open this in Wordpad or Word I see just the chinese characters.When my app opens the .rtf file and reads the file's contents and puts it into a RichTextBox for display, I get "everything" from the .rtf file, i.e.:
{
tf1ansiansicpg1252deff0deflang2057{fonttbl{f0fnilfcharset134 SimSun;}{f1fnilfcharset0 Calibri;}}
[code].....
Getting Two Sets Of Information From A Source File
Apr 18, 2012I want to get two sets of information from a source file. Say user name and address to their profile. I so far I'm using two for next loops to get the information I want and save it into the text file. Works great. Problem: I would like to print to file first line of For Next output then append to that the first output of the second For Next loop. Then do the same for second out put until the end of each For Next loop is complete. [Code]
View 14 RepliesHow To Join( If Elseif If ) In Number Of Sets
Jun 8, 2012Since plan1 and plan 2 all plans having same fields but due to their variable values total I make 4 tables having one to many relationship so that duplicate data for few fields get accomodated under different Id. and now there is no need of filtering data also and 4 databinding sources give a serial values to my comboboxes to select veriables to get further calculations.
I have another question now in further calculation there are many calculation sets with using if elseif if statment for such number of sets how to connect them since in form1.vb code file
if I place them one after other some calculations get correct some gets wrong.I hope you understand my question.is there any method to connect such sets( if elseif if) statments one by one under one buttion_click to get correct answer for all the sets.
