I have a class with something like [code]...
By doing this, i want the label to display value of cube.m10
I've tried other things like quotation marks or brackets but doesn't seem to work.
Is it possible to do without being too complicated?
how do I overcome it? I have created a class and compiled into .dll This code
[Code]...
In Visual Studio 2008, if I do this:
[Code]....
Does anyone here know how to get the above to work WITHOUT warnings being generated?
In the following code i get a warning at line 59:Warning 1: Access of shared member, constant member, enum member or nested type through an instance; qualifying expression will not be evaluated.and.. At line 78 I get this Warning:
Warning 2 Property 'SelectedCustomer' doesn't return a value on all code paths. A null reference exception could occur at run time when the result is used.
The program compiles and runs well, but i cant' undesrtand the reason for these warnings. Any Idea ?
1: Public Class Form1
2:
3: 'Form level members
4: Private objCustomers As New ArrayList
[code]....
I'm using a compiled .dll provided by someone else -- I know little about it, other than it has a session variable that I must access in a way that is strange to me. Not sure what to call it -- have googled for words that I thought might be right, but so far no success.
View 2 RepliesCannot appear to be able to get this function to not have the above error.Private Function GetIncidentActions(ByVal FromAgentID As Integer, ByVal ToAgentID As Integer, ByVal incidentAction As Integer, ByVal ActionDate As Date) As String
[Code]...
I am trying to use the value of one variable to call another variable of the same name.I have 2 variable one called VAR1 and VAR2.
The variable VAR1 has a value of "VAR2"
The variable VAR2 has a value of "HELP"
I want to be able to get the value VAR2 from the variable VAR1 I have defined the value of VAR2 early in the code and now I want to call that value by using the value of VAR1.The reason I am doing it this way as I have a list of 50 variables that are pulled from one system. Each of these variables have the same name as the columns of a spreadsheet. The total number of Variable stay the same but the total column headers may vary each time. I need to loop through each of the column headers match them with the variable names and add the data to the spreadsheet.
VAR1 = "VAR2"
VAR2 = "HELP"
i =1
[code]....
This is the tricky bit...if the value of the cell(1,i) = "VAR2" How do I get it to display the value of the variable of the same name In this case how will I get it to display "HELP" when I only have from the VAR1 value "VAR2" I know my code will bring back the value as a string but I want it to bring back that string as a variable and display the value of that variable?
Here's an example of what I'm talking about...
Public Class Sample1
Public Shared Function MyValue() As Integer
Return 0
End Function
Public Sub Code()
[Code]...
Me.MyValue gives a warning in VB.NET and (the equivalent code gives) an error in C#. Is there a particular reason for this? I find it more intuitive/natural to access the shared function using 'Me.MyValue' - but I avoid it to keep my warnings at 0. Did someone else just decide 'Nah, it makes more sense to do it the other way' or is there some technical reason I don't understand?
EDIT: I was thinking of it wrong, more like a 'sub class' in OOP. Even if something is declared in the base class, you access it through the instance you have. But that relationship is not the same with shared or static.
, I was wondering if it was possible to reference a member of a structure by using a string variable. Here's an example of what i'm talking about:
[Code]....
Now, I know that you would usually reference the value in any of the members by using the following (String1 in this case)
[Code]....
I've been trying implement Constructor method in passing variable between two forms.Just a rough user interface guide - issue Invoice. User would type in all the Customer Name, Document Number. Once he reached Item Details, a Child Form would pop-up for the User to select/search the Invoice's Item; Once selected, the selected item would showed in the primary Form.
What I had tried is, the Constructor method worked perfectly when it is self-contain in a new project, yet to be implement in my application.But when I implemented, there is an error: Reference to a non-shared member requires an object reference.
[Code]...
This is a challenging one that got me stumped while I was coding today. Suppose I am running the Sub Test1() and Test2() and would like to print out the value of the Shadows method of the instance of the object I am passing in to TestCall() (see below - it is clearer) using the following restrictions:
Can't change the contents of Class A, B, and C
Can't change Sub Test1() and Sub Test2()
TestCall() can't have an if, select case etc. statement that tries to figure out the type
[code].....
How can I call a class from a variable ?
Something like :
Dim strClassName As string = "clsAction"
Dim newclass = strClassName
I know that this code doesn't work, but how can I do it, if possible.
what I need to do is to call/run/execute a subroutine using a varaible name from a subroutine.
Public Sub Main(ByVal subName as String)
Call subName ' subName may be contain the value AAA or BBB
End Sub
[code]....
Im new to VB and have written an application which copies data around a network. Im trying to simplify the code that does the copying so i can get it to run as a module.[code]...
View 5 RepliesI have searched, but am not exactly sure what to call this process, so it's difficult to know what to search for. I have a set of functions that are almost Identical, so I want to call them, for example, function1(), function2(), function3(), etc. I want to be able to define and call them with a bit of code that says something like.
[Code]...
I have created a project using VB.Net(VS2008) and created the exe file. I have another project in VBA (Excel 2003). The project basically IC-Testing based. So according to the device type the Excel workbook name varies. For example I have AAAA.xls, BBBB.xls, CCCC.xls. When I open AAAA.xls, I want to call the .exe (which is developed in VB.Net) with the variable "AAAA". i.e when the exe program runs, it knows which Excel is opened or from which Excel the .exe is called. now I am using Shell retval=Shell("d:Monitor.exe",1). Using this the exe is called and running fine. But the Monitor.exe doesn't know which Excel called it, whether it is AAAA.xls, BBBB.xls or CCCC.xls.
View 1 RepliesI'm attempting to set a variable from a variable i've searched high and low and looked in many books but still to no avail. I guess i'm using the wrong keyword.I have many public variables like this:
View 4 RepliesSo I am having an issue where I want to call a variable without addressing it directly and I get an error for it:
Conversion from string "player1BuzzLock" to type 'Boolean' is not valid.
This is technically correct but why would it fail?
Dim player1BuzzLock As Boolean = False
Dim PlayerNum as Integer = 1
'...
Dim playerBuzzLock As Boolean = CType("player" & PlayerNum.ToString & "BuzzLock", Boolean)
If I have a string that contains the name of a control is there a way to call that control's click event?
Dim a as string = "MyButton1"
Now I want to call MyButton1.Click Method or MyButton_Click Event using the contents of a.
My application has a variable VAR_1 that is boolean, this name is also stored in database.
Now I need to set VAR_1 value in my app by reading database and asign x value,
How do I call VAL_1 from a string?, this is:
Dim VAL_1 as boolean
Dim str as string = myTable.Rows(0).item("x") <--- Here's the name "VAL_1"
But I just can't find how to call VAL_1 by converting "VAL_1" to variable
This is probably a dumb question but I have to call one of 30 or so global variables by constructing the variable name to be called from another information. However when i do that it treats it as a string. Any ideas on how to make this work?eg something like this:
Public gsNewYork As String
public sub Getinfo
dim lslocation as string
[code].....
Private Function TestFunction (byval VariableA as SomeClass)
Static VariableB as integer
VariableB = variableA.position
[code].....
I have this public class
Public Class commonSettings
Dim etcString As String = "some string"
End Class
How can I call etc String and use it entirely on my code?
I'm looking to call a subroutine via a variable. For example:[code]Is that possible?
View 3 RepliesI using VB.NET (VS 2008). I want to know if I can call a sub whereby the name of sub is in a varialbe.
For example :
Private Sub Hello()
Msgbox "Hello"
End Sub
[code]....
I know it does not work that way but how can I call a function or sub using a variable and not directly.
i would like to call a funtion whos name is in a vairable.
Dim Car_service As String
Private Sub ComboBox_Spray_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ComboBox_Spray.SelectedIndexChanged
Car_service = ("Spray_" & Me.ComboBox_Spray.Text)
end sub
Call spray_Standard 'this is what i need to change standard is what comes from the combobox 'but i would like to call the funtion depending on what the combobox.text was eg,' if combobox.text was Parkingsensors i would like to call the function call spray_parkingSensors
Private Sub Spray_Standard()
Price_Subtotal = 0
Price_Subtotal = (Damagecount * 65)
Car_Price_Subtotal.Value = Price_Subtotal
End Sub
I have 2 question, hope somebody give me an explanation: 1. Should a local variable call dispose method and set to nothing? 2. If some method have an arguments which it is a ByVal argument, it means a method create a new object? But If it is a ByRef argument, it means a method don't create a new object?
View 4 RepliesIs there a way to call a procedure in Visual Basic (.net) with a variable name? For example, the variable strColour can be one of 10 pre-defined values, green blue black white red pink orange yellow indigo purple. How to handle each one is in it's own Sub Routine, colgreen, colblue, colblack and so on.
I can use a bunch of if..then..else and select case, but what I'd like to have is something like VBA Excel's Run "col" & strColour
So I'm trying to write a MasterMind game, but I have a problem I have 40 pictureboxes set up in 10 different rows, and I want to have one code handle all 10 rows, rather than copying and pasting the code and changing the names of the pictureboxes. I've been trying to use a variable to achieve this, but if it's possible, then I don't know the correct way to do it.This is what I have right now:
[Code]...
i need to call mdi form toolstripmenuitem name using the string variable. for ex, mdi form is Form1. toolstripmenuitem is customer master if i do like that "Form1.customer master.Enabled=True" its working
but my issue is i stored customer master in a string variable like mystring="customer master" i need to enabled using the string variable like Form1.mystring.enabled=True