How To Get Three Variables
Dec 14, 2009I have text for example:11.12.2009 or 7.8.2004 and how to get three variables, a, b, c
a = 7
b = 8
c = 2004
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VS 2008 - Take A String Of Variables With A Common Delimiter And Break It All Back Out Into Separate Variables
Dec 11, 2011Last year (2010) I came across a FANTASTIC command that allowed me to take a string of variables with a common delimiter and break it all back out into separate variables (possibly an array) with one statement.
[Code]...
As long as the delimiter was a unique specifiable character, this one-statement command could break it out into elements. my memory and point me in the right direction.
Passing Multiple Byref Variables / Variables Fail To Change Calling Funct W/ Invoke
Sep 27, 2010I have code, shown below, that works all except for 1 thing: The variables being passed byRef get passed, but once modified in the else section of the "if me.invokerequired" code of RecordData, the variables are never updated in the calling function. To reiterate, the calling function does not receive the updated data that is in the variables custid and amt.When debugging, I see the data change in the else section of "if me.invokerequired", but once it returns from the callback the data is missing.[code]
View 15 RepliesDefine Some Global Variables Of A Class - Variables Occupy Memory?
Mar 23, 2012I define some global variables of a class as follows:
Private Class MyClass
Private var1 as Decimal
Private list1 as List(Of string)[code].....
But I found that after this form is closed, all above variables, var1, list1, list2 still exist in memory. I thought they should be collected by gc since the form is already disposed as I confirmed.
Add: I have monitored half an hour after the form is closed. But these variables are not collected by gc. I have an automatic update procedure on the form which uses above variables.Since the above variables still hold values, the automatic update procedure is always called which causes exception. (One quick fix is to check if form.isDisposed in update procedure. But I do not think this is elegeant. Besides, these variables occupy memory.)
Memory Used In Declaring Variables Are Reclaimed By The OS When These Variables Go Out Of Scope?
Jan 7, 2010Does the memory used in declaring variables are reclaimed by the OS when these variables go out of scope?Does the memory used be released by setting thier value to nothing? if not, then how can I force the garbage collector to run or excecute at a certain/desired time..How about in Windows Forms..How can we make sure that the memory used in initializing and showing forms be released if those forms were closed?
View 13 RepliesMultithreading: Reading/setting Variables, And Passing Variables?
Mar 8, 2011Question 1: What is the difference between "Background Worker" and "Worker Pool" as indicated within the MSDN samples provided.
Question 2: I noticed while using, AddressOf _Function_, variables cannot be passed; what would be an efficient solution to this?
Question 3: While using multithreading is it required to invoke before setting variables, or only form properties?
Question 4: While using System.Net.Sockets is it safe/efficient to use Application.DoEvents while waiting for new data; or would be using a Do While loop be fine without DoEvents since the action would be multithreaded? Note: there can be up to 2000-3000 sockets in use at a time.
Use Variables Or Properties, And Global Or Static Variables In A Class?
Jun 9, 2012I'm new in .NET programming.I have a class Form1 that includes Button1_Click event.Button1_Click creates a multiple Text Boxies at run time)Here is the class:
Public Class Form1
Dim shiftDown As Integer
Dim counter As Integer
[code].....
Possible To Use Variables Without DIM?
Jul 10, 2011Is it in VB.NET possible to use variables without the need of use DIM? Now I have to use the variables like this:
dim a = 100
dim b = 50
dim c = a + b
I want to be able to use vars in this way:
a=100
b=50
c=a+b 'c contains 150
I think in VB6 and older VB this was possible, but I am not sure.
.net - Get The First Two Variables Parametrized
Feb 6, 2012This is the updated code:
sql = "INSERT INTO Strings (String_Name, Long_Text, Short_Text, Alternate_Text, Multi_String_ID, Lang_ID) VALUES (?,?, ?,?,?,?)"
Dim command = New OleDbCommand(sql, pConn)
command.Parameters.AddWithValue("@webStringName", "String_Name")
[code]....
I am trying to create and INSERT statement with and OLE adapter. I had it working without paramtersm but now I am trying to add parms and am having issues with the syntax.Here is the code so far...
command = New OleDbCommand(sql, pConn)
sql = "INSERT INTO Strings (String_Name, Long_Text, Short_Text) VALUES (?,?, """ & ptsShortText & """)"
command.Parameters.Add("@webStringName", OleDbType.VarChar, 250, "String_Name")
command.Parameters.Add("@webLang_String", OleDbType.VarChar, 250, "Long_Text")
[code]....
Was just trying to get the first two variables parametrized.
Add 2 Strings Variables
Jul 14, 2011I used to add 2 strings variables and it works but when I tried using VB2008 it didn't work. [code]
View 9 RepliesAny Way To Fill Two Variables Within One?
Sep 30, 2009I got a problem dealing with variables: I would like in an if-then-else following
If FZ1_KaskoTextBox.Text = 1 And Grundwert_Kasko <= 10000 And FZ1_BMComboBox.Text = 9 Then PraemieKasko_KFZ1_Var1 = 169.33 And PraemieKasko_KFZ1_Var2 = 169.33 Else
But the variables don't get filled?! is there any possibility to fill two variables within one "then" ...
Appending To A Variables Name?
Sep 22, 2011s1nickelFrontImage is a declared variable, and I have others similar to it, they run up to 10.
how can I append/change the variable 's1nickelFrontImage1' to 's1nickelFrontImage2', and so forth, until LOOP is complete.(always increases by 1)
Do While ac1IMGPtoCCount > 0
ac1ImgPtoCString = ac1ImgPtoCString & s1nickelFrontImage1
ac1IMGPtoCCount = ac1IMGPtoCCount - 1
Loop
Asp.net - Using Session Variables In IE?
May 14, 2012I have an ASP.NET application that I am developing. I'm using session variables within the app.In Firefox & Chrome, they all work.But in IE (ver 9), there's one variable that's not working. I'm not sure if it's a storage or a retrieval (or both) at this point. The variable in question that I'm storing is a List(T) type. It's the only one of it's kind that I'm using. Can't help but think there's a correlation there.One other old post mentioned the possibility that cache is causing the problem, but I didn't understand the answer very well.
Dim Rec_IDs As New List(Of String)
Rec_IDs = Session("Rec_IDs")
and
Dim Rec_IDs As New List(Of String)
[code].....
CSV File Into Many Variables?
Mar 19, 2010I have a CSV file with 35 fields. I have to read it into 35 variables. i know I can read the line, split it, write 35 assignment statemens. I am looking for an easier way (because I am lazy).
I'm looking for something like ReadCsvFile (A1, A2, A3, A4...A35) that will read a line, split it, and make all the assignments.
Declaring Variables On .NET?
Jul 26, 2010I actually came from VB6 and starting to learn VB.NET. I saw this line of code which I cannot understand how it works nor how it goes.
Private MAX_VALUE As Integer = (1 << 14)
Get And Set Environment Variables?
Jan 9, 2009We have a couple of applications at work that need a reference to the license server set in the User Variables under the Enviroment Variables on the windows xp client machines(system properties, Advanced, Enviroment Variables). The problem is that both applications needs a reference to the same variable name and you can't have two with the same name. What i intend to do is to create a simple windows application with a button for each application that deletes the variable item present, adds a new variable item with the value needed for that application to be able to run and then run the application itself. This is just a temporary fix until we get a more permanent solution. The 'GetEnvironmentVariable' class in vb is not able to add or delete a item, maybe the WIN32 API could do the job.
View 2 RepliesGet Name Of All Variables Within Structure?
Jun 28, 2012I have a structure type, as below
Code:
Public Structure StrFolder
Public isActive As Boolean
Public NameFolder As String[code]....
I would like to retrieve and print each variable name within a given structure (not its value). For example:
StrFolder(0).Name should print "isActive"
StrFolder(1).Name should print "NameFolder"
StrFolder(2).Name should print "URLIDNumber"
StrFolder(3).Name should print "DateOfFolder"
etc..
I would also like to know each type of an item within a structure. For example:
StrFolder(0).Type should print "Boolean"
StrFolder(1).Type should print "String"
StrFolder(2).Type should print "Integer"
StrFolder(3).Type should print "String"
etc..
Get Variables From A String?
Aug 23, 2010I am writing an app to streamline my downloading and reading or manga, i usually download and manually extract each chapter into a specific location, based on what manga and chapter number it is. i then use windows picture viewer to read it.however, i can't work out a procedure that would take the manga name and chapter number out of the file name.i want to be able to pass the procedure a string containing the format that the file name is. e.g. "<title>_<chapter>_[IEM]" then i want the procedure to return the manga title and chapter umber into variables.for example, i pass the function "<title>_<chapter>_[IEM]" as the format string and [code]...
View 6 RepliesHow To Change The Value Of Variables
Jun 24, 2011i have an int variable a = 8 and b = 2.How can I make variable a = 2 and b = 8 without using any other variable and making it generic so if you enter other numbers like lets say a= 10 and b = 5, you can still get a = 5 and b = 10?
View 7 RepliesHow To Create Variables In XML
Aug 11, 2011We have these xml formatted .config files that come with all our ASP.NET programs. Well they have keys that need to be populated and I am unable to understand how to create a variable in xml and use it. The articles on variables in xml all seem to be talking about some other type of variable than I am familiar with. I am used to working in C or other programming languages.
I want to do something like
MyVariable = "SomeString"
<add key="Key1" value=MyVariable>
How To Declare Variables?
Feb 6, 2012trying to figure out how to declare items here. here is the
[Code]...
How To Rank Variables
May 10, 2009Is there an easy way to rank variables. Currently I have to compare each one to each other then try to eliminate one. Is there an easy code.Say x y z are all numbers. To find the highest I have to
if x > y and x > z then ....
else y > x and y > z then....
else z > y and Z > x then...
this isnt' too bad with three variables, but if I have 10 or more it gets long... and then finding if x is first, finding what is the second highest is tough too
How To Use Common Variables
Jan 12, 2012I am new to .net and I usually had a common file which was having information of username,server,password,IPS and fixed integers in php and asp classic which i used to include in all files so that i could use them in any page. Since I have come to know that .net has no include function. how i can do it in asp.net?
View 3 RepliesHow To Variables Between Forms
Sep 29, 2010I'm sure this gets asked a lot, but I can't seem to find an answer for it. I want to have my Form2 change a variable in Form1.
View 9 RepliesMaking Dll With Some Variables?
Oct 28, 2010I have created a project to update my applications; it is simply a form, with a progressbar and some other fancy stuff, which will check for updates via FtpWebRequest and download files if necessary. I have code it so that in order to use it for other applications I only need to change the ftp folder address and the .exe name for the main application to be started.
So the question is. Is there a way i can put that project in a dll so that I can simply pass it to my partners without having to pass the source and obviously have some way to change the ftp folder address and the .exe name like some kind of properties�.
Multiplying Two Variables?
Dec 2, 2009how would i go by multiplying two variables..
ListBox1.SelectedItem.ToString() * Label1.Text.ToString() = Label2.Text
is what i have but it seems to not want to do it... [URL]
Passing Variables From Sub To Sub
Mar 30, 2010I have my own little tutorial about passing variables, and if you'll look at the code below, you'll see how I am passing the variable from one sub to the secondsub. Here's my question, how can I pass a value back from the 2nd sub to the 1st? So if I want to sum intA plus intB, and want to return that value to the first sub, how do I do that? [code]
View 18 RepliesRead XML Then Put Into Variables
Jun 10, 2011I am working on a Thesis Software. Right now I am stuck and don't know what to do. My software needs to write xml files (Figured it out) and also READ XML Files then use the values inside the XML files as data by assigning the values to variables and such for the software. In essence we are using XML Files as a type of flat file database.
One of my XML files has the following structure:
<User> <Student ID="1">
<FirstName> </FirstName>
<LastName> </LastName>
<StudentNumber> </StudentNumber>
</Student> </User>
I need to be able to read the xml file and get the values inside FirstName and put it into a variable that I can use through the system(like show the firstname in a label) and the same with LastName and StudentNumber. I would like to note that there will only be one student. This particular XML file is for a Student Profile.
Also I would like to note that the location of the will depend on the programs start up location:
System.AppDomain.CurrentDomain.BaseDirectory() & "StudentProfile.xml"
Reading Xml To Variables?
Jul 6, 2010I am fairly new to vb and have created an alarm program. I have figured out how to write an xml file saving my variables. I can only save one set of variables currently. I would like to save multiple alarms to the xml and read back the xml as a list of alarms that the program is processing. Can someone lead me in the direction to calling the xml a list of alarms and how to read them into variables
maybe if i save the alarms sorted by date and time I could process them as they expire.
Set A New Environment Variables?
May 8, 2010I wanted to know if its possible to use VB.Net to create a USER Variable in the Environment Variables of the Operating System.
View 2 Replies