VS 2005 Get Three Variables, A, B, C?
Jun 18, 2011I 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 2005 - SQL And / Or Queries From Variables
Feb 12, 2011I'm in the middle of a project, I've got the bulk of it working but I cannot work out how to get my variables to modify the SQL query properly, I'll try and explain. GUI has 5 search fields Q1, Q2, Q3, Q4 & Q5 with 4 checkboxes that denote AND / OR operators that need to be inserted into the query correctly. If they are all set to 'AND' it works fine. However if the user wants 'Q1 AND Q2 OR Q3' then it fails. If I hard code then I just user brackets ie '(Q1 AND Q2) Or Q3'. For some reason I seam incapable of working out the code to achieve this...
Code snippet:
'Check AND OR Checkbox and assign Operator
If Q1AND.Checked = True Then
Q1Op = "AND"
Else : Q1Op = "OR"
[Code] .....
VS 2005 Member Variables And Events?
Oct 12, 2010How should I handle events in this situation I have "Class1" with a "PropertyHasChanged" event.In "Class2" I've declare a Public Member Variable WithEvents of Type Class1.As well, Class2 has the Event "OtherPropertyHasChange".In a Form Class I've declare a Public Member Variable WithEvents of Type Class2.The Form Member has access to the "OtherPropertyChange" Event but not the "PropertyHasChanged" Event.Question is,how do I accesss the Events of Class1 from the Form Class?
View 6 RepliesVS 2005 DrawString Changing All Painted Variables
Jun 5, 2009Why dose this paint event change all the strings that have been painted to the current variable in Me.txtSheetLabel.Text?
Private Sub Drawing_Paint(ByVal sender As Object, ByVal e As System.Windows.Forms.PaintEventArgs) Handles MyBase.Paint
For Each l As Line In Lines
[Code]....
VS 2005 Global Functions And Variables Within Solution?
Jun 23, 2009I have a solution with 5 visual basic projects in it. Each project has an identical module with a few functions and constants - like handling our RS232 data, outputting events to log files, etc, etc..
If I want to change any of this common code, then I have to manually go through and change in each project. Is there a way to have a single module or class that's shared throughout the projects in the entire solution? I've considered creating and referencing a class library, but I'm likely to be making several little tweaks and changes to this "global code" and that method sounds like it could be just as awkward. Can I not just have a module that's visible to all projects, and compiled into each one seperately when the solution is built?
VS 2005 Multiple Forms And TextBox Too Many Variables?
Nov 15, 2009I have 10 forms and say 5 text box's on each one so a total of 50 of these text box's. But the program is only using one of these forms only (user selects the 1 Form out of the 10) so I was wondering can these forms Share the input text box's? I am thinking NO, if so then the only thing I can do is just use 5 shared variables that all the forms can utilize.
View 2 RepliesVS 2005 : Do Some Simple Manipulations Of Variables Based On What Tab Was Selected
Nov 6, 2009I was looking to do some simple manipulations of variables based on what tab was selected.But I dont see Deselected, Or Selecting as in this example, does 2005 use somthing different?
vb
Private Sub TabControl1_Deselecting(ByVal sender As System.Object, ByVal e As System.Windows.Forms.TabControlCancelEventArgs) Handles TabControl1.Deselecting
someClassLevelVariable = e.TabPageIndex
End Sub
[code]....
VS 2005 Set And Read Member Variables Of Combobox Items Object?
Jun 12, 2010I have created a class called 'MyAddress' and in the form load event i am adding few objects of that class to the combobox. I want to know how should i set and read the values of the member variables of that selected item of the combobox. I have tried this and is working, but i am not sure whether it is the way to do
vb
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[code].....
VS 2005 - Localization In Windows Application - Label Which Text Is Merged With Some Variables Or Object Properties
Sep 2, 2010I've implemented the localization in my windows application with no problem for the label or command button which have a fixed text.
My problem is related to the label which text is merged with some variables or object properties.
E.g.: vb label1.text = "There are " & myDataGridView.Rows.Count.ToString() & " items"
So, how can I set (if it's possible) the localization for these labels? I've this kind of assignment in modules and not in the form. It's possible to set a resources file also for modules?
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].....
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
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]...