Code Gives Out NaN As Result
Feb 29, 2012
As of right now I am getting no compile errors with my code, everything runs they way it is supposed to go except for one minor detail. I have a private function named MonthlyPayment() that does a calculation for a loan. The calculation runs as expected and I get the correct results by typing in Console.WriteLine(MonthlyPayment()) but it is not in currency format. To fix this I set FinPayment equal to MonthlyPayment [FinPayment = MonthlyPayment()] and typed in Console.WriteLine(FinPayment.ToString("C")), But this just gives me NaN as a result.
Here is my full code:
' The following code was created for McBride Financial Services to use to amoritize loans.
' This console code will calculate and display the monthly payment amount to fully amortize a loan.
' This console will prompt the user to input values for the loan amount, the term length, and the rate.
Module Module1
'Declares strings used for user input values
[Code] .....
View 6 Replies
ADVERTISEMENT
Apr 20, 2012
The following code in C# gives result "228452386"
UInt32 a;
int k = 0;
a = 0x9E3779B9;
a += (UInt32)(url[k + 0] + (url[k + 1] << 8) + (url[k + 2] << 16) + (url[k + 3] << 24));
After above code is ran, "a" contains "228452386" But the following same code in VB.Net results in "Arithmetic operation resulted in an overflow". Basically the last statement is returning value "1868983913" so the runtime error is generated.
Dim a As UInt32
Dim k As Integer = 0
a = &H9E3779B9UI
a += CUInt(AscW(url(k + 0)) + (AscW(url(k + 1)) << 8) + (AscW(url(k + 2)) << 16) + (AscW(url(k + 3)) << 24))
note the variable "url" in above code could be any string and it is same for both codes.
EDIT:When I run the following statements in both C# and VB.Net than they both return same value
C#
(UInt32)(url[k + 0] + (url[k + 1] << 8) + (url[k + 2] << 16) + (url[k + 3] << 24))
VB.Net
CUInt(AscW(url(k + 0)) + (AscW(url(k + 1)) << 8) + (AscW(url(k + 2)) << 16) + (AscW(url(k + 3)) << 24))
Both statements return value "1868983913" for "url" "info:microsoft.com". But when I run complete statement with a += ..then VB.Net gives error while C# returns value "228452386".
View 3 Replies
Nov 14, 2011
I am trying to create an application for a wire company that sells spools of wire for $100 each. The normal delivery charge is $10 per spool. Rush delivery costs $15 per spool. The user should enter the number of spools ordered in a text box, and check Rush Delivery box if rush delivery is desired. When the Calculate Total button is clicked, an input box should appear asking the user to enter the number of spools currently in stock. If the user has ordered more spools than are in stock, a portion of the order is back-ordered. For example, if the user orders 200 spools and there are only 150 spools in stock, then 150 spools are ready to ship and 50 spools are back-ordered.
Attached is the code with comments on what each function is supposed to do. I dont know why but the form always returns zero.
'Declare variables
Public intNumberofSpools As Integer
Public intBackOrder As Integer
[CODE]....
View 14 Replies
Mar 9, 2011
I created this stored procedure.[code]Now, I want to get result set in vb.net by using ADO.net. How can I catch this.
View 2 Replies
Aug 31, 2010
How do i execute this code in vs2008 visually with a result?
C#
struct Cycle {
int _val, _min, _max;
public Cycle(int min, int max)
[code]....
View 1 Replies
Nov 20, 2010
this application for computing the gcd by using extended euclidean but it give me just the value for first iteration but i need the final values of x2 y2 a
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim x1 As Integer
Dim x2 As Integer
Dim y1 As Integer
[code]....
View 2 Replies
Feb 22, 2010
I have a stopwatch in my program. I start the stopwatch with the start button I created. When I stop it it gives the results of the time in a label that I have named labelTime. I have a Calculate button I have created. I also have a label I have named calcResult. I want to click the Calculate button and divide the stopwatch result (labelTime) by 60. I want the results of this calculation to be displayed in the label calcResult. I keep getting errors saying labelTime is a string value. I believe I will need my calcResult to be a Decimal.
View 20 Replies
Apr 8, 2010
Is there a proper code to export oracle query result to csv file? I want to save more than 3 million of records
View 1 Replies
Mar 19, 2010
I am trying to format a Function Code so that it returns a 4 digit result no matter the entry by the user (i.e. they enter 540, stores 0540 in the database). While looking online, I've found the format function, but when I use it, it returns 540, regardless if I enter 540 or 0540. [Code]
View 2 Replies
Jul 30, 2009
I am using a background worker, it runs fine but it does not shows the result. i am using jmcilhinney source to work it out.. have a look.
VB Imports System.ComponentModelImports System.Text.RegularExpressionsImports System.NetImports System.IO Public Class WorkDialogue Private _result As Long = 0L Public ReadOnly Property Result() As Long Get Return Me._result End Get End Property Private Sub
[CODE]...
And the button codding in other form:
VB Using dialogue As New WorkDialogue dialogue.ShowDialog()TextBox2.Text = dialogue.Result.ToString() End Using
View 5 Replies
Oct 5, 2009
What I need to do, is to call a SQL stored procedure from VB.NET, and then store the returned query value in a string.
View 13 Replies
Mar 17, 2009
add a code to handle the TextChanged event of my Textboxes to clear the Result box.
Private Sub btnCalculate_Click_1(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCalculate.Click
txtResult.Text = txtRate.Text / 100 * txtAmount.Text * txtYears.Text
End Sub
[code]....
View 2 Replies
Jun 12, 2009
I am creating a application in VB.net. I've just managed to get a mssql connection going with the many people on this forum. I am now trying to establish a connection with Sybase server/db. Upon entering the username and password from my application front end, I get the following message:
[Code]...
View 1 Replies
Mar 30, 2009
I am creating a application in VB.net. I've just managed to get a mssql connection going with the rom many people on this forum. I am now trying to establish a connection with Sybase server/db. Upon entering the username and password from my application front end, I get the following message:
View 1 Replies
Dec 10, 2010
I am currently having a headache on how to solve this problem that i am facing. here is the situation: I have a combobox and a list box on the main form. The combobox will get the data from the ms access database. In the database, i have the details of a person's IC, Name and DOB say for eg on one entry I have D215311523C,SHAWN,13/04/1987 So now, my combobox on form load will show the list of dates in the database to allow the user to search base on the date itself by clicking on the selected date. So when the user clicks on the particular date say 13/04/1987, people in the database whose birthday is 13/04/1987 will be shown on the listbox.Meaning to say if i have 3 entries whose dates are the same 13/04/1987, 3 entries will appear. If there is only two entry, then two results will be shown. But now, when i do a single click on the date, one result will be shown. That is correct. But the problem is when i click on the same date again, three of the same results will be shown on the list box. that is it will display : 13/04/1987 13/04/1987 13/04/1987 which is not the case. Then it will show more duplicates of the same results if i click more times on the same date which should not be the case.
Dim n As Integer
Dim numbers() As Integer
Dim StartFrom As Integer
Dim EndAt As Integer
[code].....
View 3 Replies
Sep 25, 2010
I am using a datagrid in my where i am having four columns. In first column the parameter values are entered and in the second column measured value is entered and in third column the nominal value is entered.Inthe fourth column the result is displayed by subtracting the measured value and nominal values. I am doing this calculation in Datagrid cell validated event. What i want is,there will be many rows in the grid,when typing the value in the third column the corresponding result will be displayedin the rowof theresult column,save button will be displayed while the form loads,when the calculate part is completed that is there should not any cell of the resut column empty then i should enable the save butto.
View 2 Replies
Oct 14, 2009
I am encountering the following issue So i have a device that sends stuff at the serial port, i then parse it and put it into an array of bytes like that:
Dim HCI_Command_Rcvd_Byte() As Byte All good till here What i wanna do is make an array and put this result every time the serial port gives me a new result, for example:
[Code]...
Basically what i wanna do is let the port parse the messages, fill in the array with the result at an empty spot in this array and then i will have a separate thread that will look in into this array in each non empty space and after it looks into the non empty space it will use or discard the info and also mark this space as empty (after it checked)
View 7 Replies
Apr 16, 2010
I just read about DataSet in VB.NET, it uses disconnected concept. My question is: if my apps has "List All" button that query data from 1 table in the database, and that table has "very very very" many rows, so my DataSet will be filled with those data and eat up memory. Can I limit the data that being put to the DataSet from that query? But I want to be able to retrieve the next data from the same query if the user want to see it?
For example:
I have 1000 rows in my database, and i query all of them. But I just want 200 rows being inserted to my DataSet, but if the user want to see rows number 201 and so on, I want to be able to retrieve the next 200 rows, and so on. So it just like cutting those data into a group of 200 rows. Can I do this with the concept of "disconnected" of the DataSet?
View 5 Replies
Apr 12, 2011
I am working on a program using VB.Net 2010 which will enable me to setup groups of files & folders for back up with syncing capabilities etc. I have a concept program which is based on some sample code I found out in one of the VB.Net forums. I have modified it from a command line based program to a form based program. At the moment I consider this code to be a "concept" program which once I have the various copy/sync routines developed and debugged will be integrated in to another program I wrote for
creating "Back Up" groups to automate the process. There are some 3rd party programs that do similar things that I want to do such as Microsofts Sync Toy, but none of them offer the grouping and exclusions options that I am going to program in to this backup/sync program.
So here is my problem, I have the included code taking two folders, a source and a destination, and copying everything from the source to the destination. It will skip over any unchanged files/folders and will delete anything found in the destination folder that is not found in the source folder and it will update all files in the destination folder that have a newer version in the source folder. In other words it will mirror image the source to the destination but will be smart enough not to copy unchanged items from the source to the destination thereby saving a lot of time. The sync part of the program is working fine, the displaying of the progress and results is not.
[Code]...
View 2 Replies
Jun 21, 2011
I have set up a method in vb.net and in xcode for encrypting a string using as far as i can tell the same parameters for an AES encryption.I've looked all over the place but cannot find information on whether they use the same encryption algorithm and settings.
this is the vb.net code:
Dim encryptAES As New AesCryptoServiceProvider()
Dim encoding As New UTF8Encoding()
Dim encryptor As ICryptoTransform
encryptAES.Key = encoding.GetBytes("12345678901234567890123456789032")
encryptAES.IV = encoding.GetBytes("1234567890123416")
encryptAES.Mode = CipherMode.CBC
[Code]...
View 1 Replies
Dec 8, 2011
I have some code to execute code at runtime...
Here is the main
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Try
If TextBox1.Text.Trim <> "" Then
If TextBox2.Text.Trim <> "" Then
[code]....
When the button is pressed, it all works and the following files are created: yahoo.dll and yahoo.pdb My question is this: What is the code to load the already compiled yahoo files to execute the code again, without having to recompile the code?
View 1 Replies
Sep 14, 2011
I need to run TWO Threads in a web application, .NET. 3.5 Both methods MakeRedCars and MakeBlueCars need to run at the same time as both take 5 seconds. I have tried many example codes with very bad results. I dont need anymore than 2 threads. The main issue I am having is knowing how to wait till they are finished and also how to store the results from each.Each of the Methods do different things, one is a web request, one is a sql call.
Both methods return a list of(cars) for example do:
carList.addrange(MakeRedCars())
carList.addrange(MakeBlueCars())
for each car in carlist<br>
response.write(car.colour + "<r>")
next
I have implemented the answered below and with empty objects all works well, as soon as you hook in a database call that returns the data/objects studio does a JIT and crashes.
View 5 Replies
Dec 2, 2009
I need to check if my SQL statement returned any results from the Access db I'm using to store my data.
I have this code atm:
cn = New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0; Data Source=D:Computing Projectdatabase.mdb;")
cn.Open()
[Code]....
I would like to be able to check (maybe via a boolean value or something) that this result returned a query. I'm using VB.net.
View 3 Replies
Jun 5, 2010
I declared a variable which is the sum of two other variables. I simply want to display that result on the screen. I think a msgbox is what I need to use but I'm not sure.
View 2 Replies
Feb 11, 2010
I have a Search function on my database.It countīs how may search result you get but now i want to load one column from each search result ( for each row in a DataTable ) into a "ToolStripDropDownButton.dropdownitems".[code]
View 1 Replies
Sep 30, 2009
I've got two list boxes on a standard form - one listing cities, the other capitals.
If the user selects the correct combo, and presses a check button, a standard msg box is displayed with congrats etc.
If the user selects the wrong combo, another msg box is displayed with a Yes No selection, to the question of if they want to have the correct answer selected for them.
Now, I've got everything working apart from this last part - having the correct answer selected. Here's the snippet of one of the If parts.
Just a word of warning - yes, it'll obviously be 'messy' and probably 'wrong' to anyone who is even half decent at VB.NET, but I've only just started, and it works for me, so that's all for now :-)
ElseIf lstCountry.SelectedIndex() = 4 Then
If lstCapital.SelectedIndex() = 0 Then
MessageBox.Show("You got it right!", "Correct!", MessageBoxButtons.OK)
Else
[Code]....
Just want to stress again - I haven't given up at the first hurdle - I've been trying to figure this out for well over an hour (probably more) now. Whatever combination I try seems to be wrong - when I press Yes it just stays on the currently selected item.
View 11 Replies
Jul 20, 2011
I have a single Row in DataGridView which shows different results for the selected Oids..The problem is that the next result replaces the first one in the same row..Is there any way to get next result in next rows so that DataGridview can show previous results also..my datagrid is not bound to any data source.[code]...
View 1 Replies
Jan 3, 2010
I'm trying to get the row number of the result row but I don't know the exact syntax.
For x = 0 To BDataGrid.RowCount - 1 'sort thru datagridview
If BDataGrid.Rows(x).Cells(0).Value = newID Then 'if result found
'get row number of result row???
End If
Next
View 3 Replies
Jun 6, 2010
in visual basic in studio if this is used for giving a message MsgBox("hello", 4, "status")how to manipulate the result yes or no from the msgbox like this should happen if the user gives no and this should happen if no
View 2 Replies
Apr 16, 2010
I am using vb.net 2010 with access 2007. everything works fine in XP, but when I switched over to windows 7 I did not proper result some queries here is my query: Select * FROM tblname WHERE fordt=#13-12-2010#It shows result in access as well as as in form.I get value from form in MM/dd/yyyy fo
View 9 Replies
