Get An Error The Output Totals To Zero?
Mar 27, 2010
I am very new to Visual basic. I don't know if I even have everything in the correct order. Here's my problem. I am trying to take user input on 3 input boxes, get discount from select case and then calculate out the following. My problem is I can get the code to do a simple addition, but If I try to do any calculation at all calling the discount I get an error where the output totals to zero. I don't know if I am missing something associated with the sub getDiscount() or if there is a problem elsewhere.Ultimately this is what I want my calculation to end up as.
First calculation
Price * Entered Input * Discount = Full Discount Value
Second Calculation
Price * Entered Value - Full Discount Value = Total
[Code]...
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Oct 30, 2011
Applications in the .NET Framework can use the System.Console class to read characters from
and write characters to the console. Data from the console is read from the standard input stream,data to the console is written to the standard output stream, and error data to the console iswritten to the standard error output stream. These streams are automatically associated withthe console when the application starts and are presented as the In, Out, and Error properties, respectively.I am working with redirects and I am solving small problems one at a time. So far so good, but I lost track of the big picture here. Can someone please clarify something for me.
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Aug 26, 2009
in vb.net i have some code that looks like this:
Imports System
Imports System.IO
Imports iTextSharp.text
Imports iTextSharp.text.pdf
[Code]....
i would like to see what the console is writing. how do i do this?
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Jun 3, 2011
Am I accessing something wrongly or missing onto something?
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Aug 15, 2011
I wonder if it is possible to write and capture errors when running a script to PowerShell.In my case I am using the following code:[code]' add an extra command to transform the script output objects into nicely formatted strings' remove this line to get the actual objects that the script returns, for example, see the script "Get-Process" returns a collection.[code]
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May 25, 2011
I am running some commands on computers and I would like to have them output a seperate text file if the command cannot run.
For Each strUserName As String In strLines
Dim ReplaceCommand As String = sCommand.Replace("*", strUserName).Replace("$$$", saveFileDialog3.FileName & ".txt").Replace("###", exeSearch)
[code]....
Am I on the right track? I am getting an output to a text file but its just one line ans always says PASS.
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Apr 10, 2012
I have an assignment to create a website that people can use to make dinner reservations. We are using Visual Basic code for the forms. It's supposed to keep running totals of each type of dinner. I'm having trouble getting the running totals to not reset to zero. I have them declared outside of the button click event. Not sure where I went wrong. Here's the code:
Option Strict On
Partial Class _Default
Inherits System.Web.UI.Page
[Code]....
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Aug 3, 2011
I am executing this validation summary program in Visual web developer 2008 express edition, found the validation summary property is not visible in output.
<div><asp:ValidationSummary ID="sum1" runat ="server" ShowMessageBox="false" HeaderText="You details cannot be processed due to following errors:" DisplayMode="BulletList" ShowSummary ="true" Font-Names ="arial" Font-Size ="12"></asp:ValidationSummary>
<asp:CompareValidator ID="cmp1" runat ="server" ControlToValidate ="txtname" Display="Dynamic" Operator="DataTypeCheck"
[code]....
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Mar 29, 2010
I am struggling to get this to output calculations correctly. Have I properly made my conversions between decimal,string and so forth. Is that the only reason that a calculation would not produce the right result or is there another reason? I have negative total results for output when they should be positive.
Dim decAmount As Decimal
Dim decInterestRate As Decimal
Dim mdecFutureValue As Decimal
[code]...
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Oct 31, 2009
Public Class Form1
'Click event for the Calculate button!
Private Sub btnCalculate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)
[code].....
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Mar 19, 2009
I am getting a "NULL VALUE error in the output line in the sub displayArray. I'm told it is because my array isn't set up to increment. I took a stab at incrementing it but not quite sure how it should be written. Also, the sample program I started with displayed array contents in a messagBox. I need to display in my label box.
Public Class MainForm1
Dim gender As String
Dim grade As String
[Code].....
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Mar 16, 2010
Visual Basic 2008 Express Edition. I completed a few projects earlier this year and have just returned to build a new project and find that I am getting an error on the build. I get the following message: Unable to output file '<Projects location><Project_name>objDebug<Project_name>.exe'. Could not execute CVTRES.EXE.
I also get this message on projects I have completed previously. I have reinstalled (repair) and then un-installed and reinstalled Visual Basic 2008 Express Edition to no avail. I also notice that Help topics such as Technical Support and Check for Updates give the following response: The operation could not be completed. I am unaware of any changes to the environment that could have caused these errors.
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Nov 29, 2009
I have the program written and it is so close to functioning correctly, but a the end where I am trying to add the totals for the costs.
[Code]...
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May 2, 2011
I have 10 Numericupdown boxes in my Form from numericupdown1 to numericupdown10. I would like to instantly display the total amount of all ten numericupdown in a Textbox (textbox1) on the form. I don't want to have to push a button to get the total value of the numericupdown boxes.
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Apr 12, 2009
I have yet another question. I have set up a series of radioButtons to create a menu of choice for a class project and am trying to set it up so that there would hypothetically be a discount on a purchase of two or more t-shirts, I have the coding set up so that if any one item is checked and the calculate button is clicked, then the dollar value or "total" will show up, however I am not able to set up a total for more that one item, it clears the previous "total" and sets up a new total for the most recent t-shirt value checked.
[Code]...
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Oct 28, 2010
Can anyone possibly take a look at my code (below) and tell me what I'm doing wrong? I have been sitting here for hours trying to figure it out. I'm very new at this and I'm thoroughly confused. I am using a book for Visual Studio "Programming in Visual Basic" and I have gone through all of the tutorials and code examples and followed them exactly (at least as far as I can tell). However, whenever I run the program, I am not getting the sum of the quantities I assigned to the constants showing up in"AccessoriesTxtBx" as I'm trying to. It shows up as $0.00 even when I have checked the boxes.[code]
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Jun 14, 2010
How would you take a numerical input from 10 text boxes and total it up and send it to a label. Then average the 10 numeric text boxes and send it to its own label. I am not asking for any code, I just need a hint or two to jog my memory. If this is not clear for you, I'll provide more detail.
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May 5, 2009
An ADOX (Access) database has five columns. ID, Date, Category, Store, Amount paid.It is possible to specify ten different items in the Category column: Apples, Oranges, etc.
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May 1, 2009
I've been working on a class project for quite a while, and I have not been able to figure out this step on my own. What I'm trying to do is connect the totals from three forms to a fourth page where I can then tally to those totals and then add 7% sales tax on the final total on the last page (I don't think I'll have a problem with the final part of add the 7% sales tax, but I'm not completely certain how to go about moving the totals through to that final form. Also, some of my forms use radiobuttons and one uses checkmark controls. I'm going to show some of the code that I have for each page in case this will make a difference. I think I need to do something with a public variable, but I'm not sure how to title that variable, and the public variable should have sub variable sections in each form, or if one specific public variable should be placed at the beginning of each form.I had also considering using a module to connect the totals in the forms together, because someone had suggested this, but I am not familiar at all with this method.
Code form1
Option Explicit On
Option Strict On
Option Infer Off
[code]....
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Mar 8, 2011
I am trying to get the totals from a datagrid, the code that I have (does not work) is:
Dim currentRow As DataGridViewRow
Dim Thetotal As Double = 0
For Each currentRow In MyFITNESSSDataGridView.Rows
[Code]....
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May 19, 2009
im doing a project ive got most of completed just for some reason its not calculating the totals?
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Oct 13, 2010
this place looks pretty reliable and helpful so i thought i'd give it a shot.anyway, i'm a student looking for help. i have to write a program that calculates costs for a catering company. i have that part down, but whats stumping me is that i have to make a summary button that adds everything up into a grand total from the previous calculations and display it in a message box. displaying and calculations aren't really my issues, but getting the data to calculate is.
i have an idea of what to do i just don't know how to go about it. i know i have to store the data somewhere, but i dont' know how to keep adding it up so i can get a grand total, so i'm thinkin there needs to be something there to count.
[Code]...
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Jul 26, 2011
I am trying to addd a record to a .txt file that happens to have the same couln name for two different columns. So i get an error message Duplicate Output Destination 'ST" 'ST' is my duplicate coulmn name, being used for Street and State poor design
code
Dim da As New OleDbDataAdapter("Select * From " & Me.OpenFileDialog1.SafeFileName & "", con)[code]...
There is nothing I can do about the .txt file it comes from a 3rd party and is there design,
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Feb 15, 2010
I keep getting this compilation error code 1 and when I click on swhow compiler detailed output, it shows the following:
[code]...
The aspnet user account has also vanished..
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Mar 17, 2012
I have two checkedlistboxes (chkLB_Sentinel and chkLB_Scourge) binded to my database.I have a listbox (LBPlayers) with 10 players in it (0 To 9) which I fill using the items checked in the checkedlistboxes and the display member is Nickname.Whenever I want a msgbox to popup containing the first player which is 0, I'm recieving the msgbox "System.Data.DataRowView"
I have this simple code:
Private Sub frmMain_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim con As New SqlClient.SqlConnection
con.ConnectionString = My.Settings.MyConnectionString
[code]....
The problem is if I write the msgbox without .toString I get an error "cannot convert to prompt" so I'm obliged to put .toString Why am I getting this kind of error even if I have the DisplayMember binded and how can I fix it ?
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Jun 16, 2010
I am using MSCOMM (mscomm32.ocx) for serial Comm. using VB.NET 2005:
Receiving Error: "AxMSComm1.Output {"Exception from HRESULT: 0x800A018A (CTL_E_GETNOTSUPPORTED)"} Object "
How to resolve this Issue, Below is the code snippet which i am using. [Code]
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Jan 14, 2011
Unable to write to output file 'D:DevelopmentJob_TrackerJob_List_and_TrackerobjDebugJob_List_and_Tracker.exe': The process cannot access the file because it is being used by another process. Job_List_and_Tracker
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Mar 29, 2011
Everything in my program is working correctly so far. The only problem I have is trying to update my totals for the program. I need to show total sales, total pay, and total commission for the program by using the file and then summary key. How the program works is that you get a base pay of $250 and you get a commission rate of .15 if you reach 1000 sales. I have done running totals before but not for one with multiple functions.
Option Strict On
Public Class CommissionForm
Const QuotaInteger As Integer = 1000
Const BASEPAYInteger As Integer = 250
Const COMMISSIONRATEDecimal As Decimal = 0.15D
[Code] ......
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Sep 4, 2011
How do I fire an event when changes are made in a datagrid embedded in my form? My datagrid houses line items for different forms (Sales Orders, Purchases Orders, etc.), and when a value is changed (i.e. quantity or price), I want it to re-calculate the datagrid automatically (extended amount) and also re-calculate totals in the form itself without having to hit the Save Button. Right now I have a sub-routine that fires when the button is chosen, but how do I fire this event automatically on datagrid changes?
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Apr 23, 2012
I am having problems with adding up the totals of the books in the lstcosts it works if I have only 1 book selected but the minute I choose more than 1 I don`t even know where its getting the subtotal from...It`s probably just something little of an error...but if anyone has a clue as to why the Sub Calculate() code isn`t working for the subtotal
HTML
Public Class ShoppingCart
Dim decSubTotal As Decimal 'subtotal variable
Dim decTotal As Decimal 'total variable
[Code]....
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