Ive got a few strings stored inside a string array, and i need to copy each string element into the integer variable on each iteration.how i would convert it? tried
CInt(stringArr(lc))
but got errors?
I am a .net beginner trying to make a crossover from vb6. I am trying to copy bytes of integer to a variable but I am getting this error msg. PInvokeStackImbalance was detected
A call to PInvoke function 'Tutorial_Class Dog!WindowsApplication1.ModAPIFunc::CopyMemory' has unbalanced the stack. This is likely because the managed PInvoke signature does not match the unmanaged target signature. Check that the calling convention and parameters of the PInvoke signature match the target unmanaged signature.
Module ModAPIFunc
Public Declare Sub CopyMemory Lib "kernel32" Alias _
"RtlMoveMemory" (ByVal Destination As Long, ByVal _
Source As Byte, ByVal Length As Integer)
[CODE]..........................
Say I have something like this
Dim Level1 as Integer = 83
Dim Goal as String
Goal = InputBox(" What level is your goal?")
[code].....
I have the following Enum:
Public Enum myEnum As Integer
first = &H1
second = &H2
[Code].....
Obviously I can code around this issue, but I can see a scenario where that workaround could be easily missed in maintenance programming, and I'm hoping someone can recommend a simple solution that won't break if, for example, the values in the enum have to change at a later date.
sgBox("********" + Microsoft.VisualBasic.Right(f, Len(f) - Len(vFilepath)) + " | File so ignored | " + i) where i is an integer, f and vFilepath are strings but I get the following message:Conversion from string "********~$SwitchSellReport - 230" to type 'Double' is not valid.All I want to do is put the number that is in i on the end of the string.
View 5 RepliesI have got the following
PHP MsgBox("********" + Microsoft.VisualBasic.Right(f, Len(f) - Len(vFilepath)) + " | File opened so ignored | " + i)
where i is an integer, f and vFilepath are strings but I get the following message:
Conversion from string "********~$SwitchSellReport - 230" to type 'Double' is not valid.
All I want to do is put the number that is in i on the end of the string.
I have a problem when debugging a code. On top of class I declare an array, and the length of array is an integer variable which is applied value below declaration of array.
E.g. class declaration
Dim array1 (2, integer) as string
Public Sub
integer = 5
End Sub
So basically, array is created with integer being 0 or whatever, because it is declared before integer was assigned a value. But the problem is, I need it to be declared at class variable so I can use array in different subs.
Convert String Variable to an Integer?
I tried this[code]...
Is the warning I am receiving about using the iteration variable in this line a concern.
Dim reportdataforpage = (From reportvar In reportdata Where reportvar.reportpage = pagenum)
I am currently looking into the conversion of a string value to an integer. Obviously I will need to do some validation as to whether the passed value is in fact convertible to an integer.
At the heart of my question is this: the users' local is nl-BE (dutch (Belgium)), which means that we use a comma as decimal sign (and points as thousands separator); e.g. 123.456,78 would be a valid nl-BE number. Now, when using the numeric keypad, the
decimal key will yield a point, not a comma (weird huh!). So many user will enter 123456.12 and when converted to an Int, this should yield 123456.
The thing is that I want to cover all possible angles; both points and commas may be used as decimal sign by the users. So I wondering if anyone has written some code that deals with such a situation. I was thinking of an extension method that makes the
conversion based on whether a point or a comma is last used in the passed string (since no thousands separators should occur after the decimal sign).
[URL]..Module Module1
[Code]...
It says the result will always be 5 namely the final value of i. How come?
They don't put the iteration variable in the "closure"?
I am having problems with the code below. I have copied and pasted the code from a program that I wrote to test and see if the code does work. In that program it does. But when I use the same code in another program I get the following error message. invalidcast exception was unhandled conversion from string to type integer is not valid.
[Code]....
So I have a string that I need to search through for certain strings. If they exist, then copy that string to a text box. There has to be an easier way to do this then what I have below
[Code]...
suppose I have variables named A1, A2, A3 ... B1, B2, B3 ... Z97, Z98, Z99. I have a certain operation I want to do using each one in turn. I CAN write a line of code for every single variable, but this will get pretty tedious. I'd prefer it if I can make a function that takes the letter and the number as arguments. So, if it gets the arguments "E" and "10" it will perform the operation on variable E10. What is the syntax for this? say a simple operation such as: result = E10 * 3 Is the syntax any different if I use constants instead of variables?
View 3 RepliesEdit: Here is a much more simpler example of this issue (i've deleted my original question):
Dim numbers1 As New List(Of Int32)({1, 2, 3})
Dim numbers2 As New List(Of Int32)({3, 4, 5})
For Each n1 In numbers1
' no warning '
Dim contains = numbers2.Contains(n1)
Next
[Code]...
The local variable number1 is redundant and makes the code less readable as @Meta-Knight already has emphasized. Note: All three ways are safe and give the correct result.
Possible Duplicate:Why is it bad to use a iteration variable in a lambda expression.why do I get: "iteration variable in a lambda expression may have unexpected results"? Suppose I have the following code:
[Code]...
I'm working with LINQ in VB.NET and sometimes I get to a query like
For i = 0 To 10
Dim num = (From n In numbers Where n Mod i = 0 Select n).First()
Next
[code].....
, 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]....
Here is my code:
Dim lon As String
Dim lat As String
If ComboBox3.Text = "Dhaka" Then
lon = 23.7776282
lat = 90.4054498
[Code]...
I want to copy the date from the isotime tags into Label5: how do i do it?When I try label5=weather.tostring, it enters system.xml.xmlelementlist
I have a LINQ2Entity problem, I want to get the value, string, from a database, so I select FProducts.Serial_number, and to end the query, I do .ToDictionary. The problem is, it tells me that it doesn't have sufficient parameters, to convert ToDictionary. So I need something like select FProducts.Serial_number, Nothing). ToDictionary. Also FProducts.Serial_number, 0).ToDictionary doesn't work.
Sub GetStatistics(ByVal ProductNumbers As List(Of String), ByRef Passed As Integer, ByRef FailedProducts As List(Of String))
Passed = 0
FailedProducts = Nothing
[Code]...
I am getting this error as I am trying to write on if statement that if I have got the currentcell text on the second column which it called "the cell" then convert the string to the integer type on the label text but the code is incorrect.
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
If DataGridView1.CurrentCell.Value("the cell").ToString() Then
[code].....
I'm trying to set an Integer value from my.settings.The values comes frpm a listbox, and then inserted to settings (set to specialized.StringCollection)The problem is when i'm trying to get the values and apply them to my function.Error code: Conversion from string "65 & 71" to type 'Integer' is not valid.To me it looks right, but maybe i'm missing something.
Code: Dim test2 As Integer Dim test As System.Windows.Forms.Keysm trigglist As New StringBuilderor Each item As String In
[code].....
I'm looking for a way to search a string variable for two words and copy the text in between them into another variable. This needs to be done as many times as the match occurs.
View 3 RepliesI got a problem...after load crystal report viewer, I am unable to right click->Copy or ctrl+c and copy any text. I am using vb.net 2005, crystal Report 11...I am showing the report content on the Report Viewer..
View 4 RepliesHow do I Change the variable strLettersGuessed into a single-element array
View 4 RepliesI just need some syntax that will tell if a variable is an integer or not. I want to do something like this (i know this isn't correct syntax but this is the general idea):[code]
View 19 RepliesIn my assignment, i need to Swap of two integer variable without using third with VB.NET code. But, i still have no idea of how to do.
How can i do this with coding?
How would i create a variable for EVERY form, so that i could add/subtract from it no matter which form i'm on.
View 10 RepliesI'm creating a vb.net winforms application that will take in user given strings, parse them, and print out labels with variable information. The given string will be used in all the labels, but the variable part of the string will change with each label.
My question is: is it better to parse the strings one time, then store those values in arrays, or to parse the string each time a label is printed? Which will perform better? Which is better practice? What is the proper way to test something like this?
Doing a calculation, variable is stored as an integer.It got too 2,147,483,647 before giving me an arithmetic overflow. Anyway i can increase the number it can hold?
View 7 Replies
