DIM A Variable In A Loop - How To Name Each New Variable Differently
Sep 7, 2011
here is some simple code:
0: dim varA = 0
thread.sleep(1000)
GoTo 0
I was wondering how do I name each new variable a different name each time through the loop (i.e. varA1, varA2, varA3)
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Mar 25, 2010
I am getting the error:"Range variable 'sender' hides a variable in an enclosing block or a range variable previously defined in the query expression."for this
Imports System.Data.SqlClient
Imports System.Linq
Public Class Form1
[code]....
I can select any other item from the table without the error. "sender" has the same properties as "receiver" in the SQL table.
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Aug 23, 2011
I receive the error -
[Code]...
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Nov 16, 2009
Im looking for help with trying to vary a variable-name in a for loop:
For b = 1 To Count
' the below image_var(b) varible needs to vary on each iteration'
Dim image_var(b) As New LinkedResource(Server.MapPath(myArray(b-1)))
' need also to have the b in myArray(b-1) bit work through the loop too'
' that is I''m after the array index b minus 1'
image_var(b).ContentId = "imageContentId_" + b.ToString
[Code]...
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Jul 15, 2009
What type can i assign a for loop control variable? I want the for loop to be the output file of a calculation, but i can not define it as anything, and i do not know how to write it so that the output is actually what the code spits out once the code has finished running.
[Code]...
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Feb 23, 2010
this is my code -
for i as integer = 0 to rows.count - 1
output &= "Name =" & row(i)("Name")
output &= "lastName =" & row(i)("lastName")
[Code]....
is there a way to make a for loop and run applicant 1,2,3,4.... in one shot?
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May 10, 2012
I'm working in VB.net and I want to create a generic ToString. is there a way to do a "For Each" in "Me".
[Code]...
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Jul 11, 2009
i have a program that is going to be disabling services depending on what is selected by the user via check boxes, and it would also add to the log if it failed or succeed ( the dim xfailed as integer ). There are a total of 73 options for services and i didn't feel like copy and pasting IF THEN statements for all 73. I was wondering if i could make a loop out of this?
The x would be the service name - ex. "Themes"
Dim x as serviceprocess.servicecontroller = new serviceprocess.servicecontroller(x)
dim xFailed as integer
Try
[code]....
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Nov 19, 2009
The subject almost sums this up. I have dimensioned a variable 'y' inside a for loop. If i then try and access this outside of the for loop I cannot. What is the reason for this and how can I correct it? Unfortunately I am not able to Dim the variable 'y' outside of the for loop.
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Nov 1, 2011
I have a mvc 3 vb.net app that I need to generate several viewbags for... I tried the following code to just drop a variable at the end of the viewbag name after each loop but it wont take it.. It says "Object variable or With block variable not set." when it his the viewbag.status(p) line on the second pass it makes through the loop...
Dim p As Integer = 0
For Each registrant In b
Dim _regi As attendance = registrant
[code]....
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May 14, 2009
Is it possible to define two variables in a vb2005 For loop in a similar way that jscript does it?
the javascript example is
for(i=0,l=0;i<20;i++){}
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Mar 30, 2010
Using VB.NET .NetFramwork 3.5. This fails and strikes me as odd. Is this correct behavior:
Public Sub TestForEach()
For index As Integer = 1 To 10
Dim z As Integer
Assert.AreEqual(0, z)
z = index
Next
End Sub
I would expect z to always equal 0 as I thought the dim-ing of an integer would set the value to 0. If you run this. It fails at the second loop. For some reason z retains it's value of 1. I know I can manually initialize z to = 0, but I wanted to know if this is a bug or expected behavior.
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Jan 12, 2010
I have a button that searches through a binary file to bring up customer information with the following code:
[Code]...
My problem is, I need to create a variable which holds the record number, so that the record can be edited, and put back into the file at its previous location, how would I implement this? Not sure about the code.
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Jan 26, 2009
I'm multiplying X*Y*Z in a loop of 200 interations Y is declared as a constant. A timer can cause the loop to pause for 10 seconds.
During this 10 sexond pause I would like to change the value of Y. It needs to be changed only for this run, not a permanent change which can be done in the declaration.
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Jan 27, 2012
wondering about the relatively efficiency of declaring oop variables in the loops, emselves, or declaring them before first use. Here are some examples:Declare early:
Dim ix As Integer
Dim currentNode As System.Xml.XmlNode
For ix = 1 To 100
[code].....
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Aug 26, 2011
For i As Integer = 1 To 10
Dim j As Integer = 10
Next
now my question is, Is memory allocated to j every time its executed inside for loop? or only value of 10 is assigned on subsequent iterations?
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Feb 9, 2010
how to "loop through a datagrid column to add values to a variable
in VB6 it was something like:
do while not .eof
myvariable = myvariable + datagrid1.collumns(6)
loop
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Oct 10, 2009
Lets say I have declared an array by doing:
dim array()
Also have a variable:
dim loopsize = 10
Then i do this:
for loop = 1 to loopsize
array(loop) = 5
next
What i wanted to do with this is from array(1) through to array(10), the values will be changed to 5. But vb will not allow this and crashes.
Why doesn't this work and how can i make it work?
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Dec 29, 2011
I have a Server side variable by the following code
Dim mgps As New Text.StringBuilder
Public ReadOnly Property GPS() As String
Get
Return mgps.ToString
End Get
[Code]...
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Aug 28, 2009
OK, after trying to get this working for a couple of days now I decided that I would turn to the experts here. I am trying to create a nested loop with a variable amount of nests. Let me elaborate. I have a program that first asks for the minimum and maximum amount of loops, I currently have a SELECT CASE statement that addresses each level of nesting individually.
Dim cMin As Integer = InputBox("Min")
Dim cMax As Integer = InputBox("Max")
Dim c1, c2, c3 As Integer
[Code].....
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Feb 8, 2012
While a "for loop" is running in VB.net, C# or Python which method can be used to append each result to a variable?
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Dec 29, 2011
I have a Server side variable by the following code
Dim mgps As New Text.StringBuilder
Public ReadOnly Property GPS() As String
Get[code]..........
and replace the store_locations with GPS but my map become empty.
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Mar 11, 2010
I'm trying to use the timer (not a Timer object) in a Do... Until loop. I want the loop to put a single variable into a label. When I do this it works and puts the value into the label (lblOxygenReading):
If btnGetOxygen.Text = "Get Oxygen Reading" Then
Select Case True
Case rdoColorWhite.Checked
strCurrentColor = "White"
Case rdoColorRed.Checked
[Code] .....
It goes through the Do loop and the For.. next loop but doesn't change the label. Visual Studio doesn't show any errors when I'm writing the code, but when I run it, it hangs somewhere.
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May 18, 2012
Public Class Form1
Dim x, c, number(0 To 19) As Integer
Dim s As Integer
[CODE]...
The variables in the brackets [example] do not actually have brackets in them in the original code. These are where the issues are. For both variables, it says, "The type for variable [variable] will not be inferred because it is bound to a field in an enclosing scope. Either change the name of [variable], or use the fully qualified name (for example, 'Me.[variable]' or 'MyBase.[variable]')." Now, I'm not entirely sure if this is a stupid question or not, as I'm used to VB '98 because that's what we use in my programming class at High School. let me know why this won't work.
-Note: The intention of this program is to continually loop the generation of numbers for this list until I tell it to stop. Button1 ends the program, Button2 generates the list one time only, Button3 is supposed to loop the generation of the list, and Button4 is supposed to end the loop, but not the program.
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Jan 10, 2011
Say that i have the following code that parse about 20k records from the DB.
Code #1
vb.net While reader.Read()
list.Add(If(Integer.TryParse(reader(0).ToString, 0), Integer.Parse(reader(0).ToString), 0))
End While
And then another code which does the very same thing but it seems to be a little cleaner.
Code #2
vb.net While reader.Read()
Dim storeowner As Integer = 0
Integer.TryParse(reader(0).ToString, storeowner)
list.Add(storeowner)
End While
This is what i am confused about; does the compiler creates a new variable automatically when i use the if statement without strictly declared variable? What approach is better in sense of performance?
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Aug 24, 2009
I am looking for a good resource on variable naming conventions to illustrate variable type and where variables are declared. So I will have public variables, Private variables, private or local variables. I also may want to declare variables with the same name in different class code (i.e. in the code behind different forms). I am assuming good coding would dicatate a prefix for declaration location.
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Mar 28, 2011
i have this error in the line of with xl.active......Object variable or With block variable not set.
Dim xl As Object
xl = CreateObject("Excel.Application")
With xl.ActiveSheet.QueryTables.Add(Connection:= _
"TEXT;C:Documents and SettingsUserDesktop429MEDICA2.TXT", _ Destination:=xl.Range("$A$1"))
[code]....
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May 31, 2012
Now I have the need to get a current value from a bindingsource in a property of a user control.In a previous thread I had tracked down the "Object variable or With block variable not set" to the return in the Get block of a property. At the time I was only using the Set so I just commented out the offending code until I needed it.
[Code]...
The error does not occur during a system compile, only upon saving the container object of the user control. As I said the Set works correctly, only the Get causes the error.I would like to know what I am missing/misunderstanding and am open to other suggestions of handling retrieving the current value of a bindingsource in a user control.
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Sep 5, 2010
Using Visual Basic 2008 Express. I need to pass a variable to another form. Or else make the variable visible to both forms.
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May 14, 2010
I am using vb2008.net express,I test vs2005term it work, can any tell me what is the input variable and output variable of this terminal?how to catch the input and output variable to a textbox1 for sending and a textbox2 for receiving when I press send button? is that possible?
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