I'm reading the highest value in my textfile and adding one to the value in my textbox, the problem is once the integer hits 100000 the program will crash, is it possible to make it infinity?[code]...
View 3 RepliesI am getting the followin error from my code. System.InvalidCastException was unhandled Message="Unable to cast object of type 'QADBASE.DMRDataLists' to type 'QADBASE.DMRData'." Source="QADBASE" I am getting the error in the code below on the createDMRIssue
[code]...
[code] does anyone knows if there's a infinity function for this code above? like "Dim dd(0 to infinity) as integer
View 1 RepliesI have to use some calculations now and then and sometimes those will give me inf, and sometimes they work, this makes my app very inaccurate...Now i dont know what is causing this, im not dividing zero so far i can see..
(3 + Math.Sqrt(5)) ^ ...
It works for single numbers, But how would i retrieve the ?double? of bigger numbers without getting INF?With bigger numbers i mean really big, like 1477014138.
Im trying to make it so that a user make a selection, with that selection is a IP address (192.168.1.) and than it gets looped and pinged from 2 till 254 strip = string and gets his value out of a case select. from mainpage (so its a public string)But i get an error that it cant get converted to a string and that it should be less than infinity.look code below.. i even tryed to make a seperate integer who adds the 2 others together (strip = 192.168.1. and intcount = 1 2 3 etc, those 2 together gives a full address)i cannot convert the strip to integer cause then it complains on the mainpage about the "cannot convert, should be less than infinity".[code]
View 2 RepliesI am using vb express edition 2008. I need to check if an infinity (or NaN) number does exists but I don't know what my mistake is.
Dim Slop1 As Double
Slop1 = (20 - 10) / 0
If Double.IsNaN(Slop1) Then
MsgBox("Check the Coordinates")
End If
whats the diference between the 'IsNaN' and 'IsInfinity' is?
I have 16 buttons assigned a number on the form, the buttons should go from "" to "4" and back to "" again as clicked. If a button in a row, column, or region is the same it should evaluate as a bad move and provide the user with a message box indicating so. I have this working in a different program but I am now attempting to write efficient code. I must have left something out; I get an error when I click on any button stating my value must be less than infinity in my first for next loop. [Code]
View 4 RepliesCertain operations in .Net can give a double variable the values "NAN" or "1.#INF". That's great flexibility but I would rather an exception be thrown any time a double is given one of these values. In my program these values should not exist, and when it does it inevitably leads to an error down the road. I keep trying to put in checks using double.IsNAN or double.IsInfinity but certain things keep slipping by. So there is any setting in .Net to just make it always invalid for a double to be set to these values?
(Edit: also annoying that I think you have to use two checks: IsNaN and IsInfinity to catch these two possibilities. If anyone knows of one check that catches any double that is not a real numeric value it.
Is it possible to assign a pixel value of a binary file to infinity? Lets say that my binary file is composed of 4 pixels only and the values are (1, 4, 8, &)... Would it be possible to assign the fourth pixel to infinity?
View 7 RepliesI know im suppose to show code, how to make an integer, I kinda feel bad wasting a thread for a simple answer, but I cant figure it out, what im trying to do it make an integer values in the range of 10 to 1000.
View 7 RepliesWhat code can I use to make an integer appear in a listbox? If any of the above are posted, you shall burn in purgatory. Don't worry, as forums are not considered cheating.
View 3 RepliesI have an update function that updates an sql server db table through a dataset. One of the fields in the table is an integer and accepts null values. So when I am populating the update function I need a way to enter a null in when the function wants an integer.
I tried to do it this way but _intDLocation = "" throws an exception
[code]...
Is it possible to make a variable hold a reference to an integer instead of copying its value when using integerVariable = integerValue ?
View 2 RepliesI am using Visual Basic Express. Here is my code but my number is always a whole number when I divide I want it to be two decimal places. For example 367/12 should equal 30.42 not just 30.
[Code]...
what code is needed in order to make an integer equal the horizontal location of the cursor on the form?
View 3 RepliesI would like to make a label change its text, only if its holding a integer 10 or greater. How would I write that as code.
View 1 Replieshow I can control the tool tip popup or make calls to the text that displays based on a integer value. I'm wanting it to display a text based on a interger value inside an if statment for a picture box. So if the ingteger = 1 then tooltip.text = "" else tooltip.text = "" but that is not the correct syntax.
View 2 RepliesI have 2 textboxs on Form5.TextBox1 as showing a result and Textbox2 for Input the some value.When user input a value (only two decimal place) then textbox1 showing the result by calculation on form2(DataGridview) and Form4(TextBox)
1.)I try this code but the Textbox1 on Form5 show "Infinity"..Why?
2.)It possible if mouse click on DGV Row(Form2) then automatic calculation depend value what rows
[Code]....
ive got some simple problem i cant understand how to solve.
str(1) is an array and integer(or double, tried both)
a(1) is an array and integer (or double, tried both)
a(1) = a(1) + 1
Label1.Text = str(1) + a
the big part is where i get: operator '+' is not defined for types 'integer' and '1-dimensional array of integer'.why do i get that message and what does it mean? how do i make the code do what i want?
I faced an error when upgrading VB6 code to VB.NET. The error occurs at AddressOf WindowProc
AddressOf expression cannot be converted to 'Integer' because 'Integer' is not a delegate type
My declaration for SetWindowLong is:
Declare Function SetWindowLong Lib "user32" Alias "SetWindowLongA"(
ByVal hWnd As Integer,
ByVal nIndex As Integer,[code]....
What is the reason for the error I get?
I'm trying to create a linked list of an array of integers. Why is the following implicit conversion required?
When I run the code that contains that conversion, I get the following error.
As a real-time data acquisition user control data (a packet of an array of bytes) arrives every second, is converted into an integer array and inserted into a linked list.
The most recently arrived data is painted as coordinates on a grid at the right of a PictureBox using Graphics.DrawLine (pen,X1,Y1,X2,Y2).
The oldest data (arriving 120 seconds ago) will be drawn at the leftmost portion of the Picturebox.
Why a linked list rather than a list? To display 120 views of time sequence data, the draw routine the most recently inserted node to a node that points to Nothing. How do I limit the length of the linked list to 120 nodes and always ensure that the last node points to Nothing?
Do While Not item Is Nothing
item = item.NextItem
Loop
I am a newbie in VB and I got a piece of code which can display the current running program. I need to use that in VB2005 and I got the below error message. Can anyone help how to fix it?[code]
View 18 RepliesI'm trying to convert a VB6 project to .NET, but I get problems with some callback functions, and the following message comes up: "AddressOf' expression cannot be converted to 'integer' because integer is not a delegate type" I've seen several solutions to similar problems like this, but I am not able to understand this issue with delegates.
After the conversion, the code look like this:
Declare Function vsmsgwSetDataPackageCB Lib "vsmsgwW.dll" (ByVal PACKAGE As Integer, ByRef arg As Integer) As Integer
Dim arginitP As Integer
[Code]...
Which gives the error: Method 'Public Function PackageCB(HisNodeID As Integer, ByRef data() As Byte, ByVal length As Integer, ByRef arg As Integer) As Integer' does not have the same signature as delegate 'Delegate Function DelegatePackageCallback(hwnd As Integer, lparam As Integer) As Integer
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]...
this is for a BINGO game final project that I already turned in but this just bugged me that I could not get the sorting figured out. I am trying to get this to sort the random numbers in to columns under the correct letters but I keep getting the error Operator '>=' is not defined for types '1-dimensional array of Integer' and 'Integer' under the line:
[Code]...
I am new to EF Linq and I have been struggling with this query for a few days. From reading this forum, I have managed to get this far:
Dim noPic = (From f In myEntities.FriendLists
Where (f.UserID = Profile.ID)
Select f.FriendID).Except(From g In myEntities.GuestLists
Where g.EventID = _id
Select g.FriendID)
[Code]...
I am trying to get everybody from the FriendList who is not already on the GuestList to display in a Repeater control. After reading the forum I was able to append .First() to noPic at the myNoPic declaration and finally get a result but that only gave me the first element. Does anybody have any advice on how to accomplish this?
Why doesn't CDate(integer) work where integer has format of YYYYMMDD ?and why won't this stupid site let me submit such a short question when I have nothing else to add except some waffle at the end
View 2 RepliesThis is giving me a headache. I have this link query here that grabs an ID
Dim mclassID = From x In db.SchoolClasses Where x.VisitDateID = _visitdateID Select x.ClassID And then later on I have this linq query
ViewData("Staff") = From t In db.Staffs Where t.ClassID = mclassID Select t
I've tried quite a few things but to no avail. I've attempted casting, converting, Is operand, etc.
I am getting the error in the code below ....
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Dim prasha As New Person("Prashanthi", "Acharya")
Dim mallika As New Person("Mallika", "Upadhya")
[code]....
I'm just writing a bit of code to compare an id of integer with an id of integer? for example:
Dim id As Integer = 1
Dim nullId As Integer? = Nothing
Dim areEqual As Boolean
areEqual = nullId = id
When I try to compile the code I get a compiler error: Option Strict On disallows implicit conversions from 'Boolean?' to 'Boolean'. Whilst it's very simple for me to work around this, I was hoping that someone might be able to explain what's going in the compiler to give this warning.