Total Value Of Inventory - Adds The Result To The Value In An Accumulator Variable
Oct 15, 2010
I've actually gotten this program running on paper, BUT, when I try to write a code for it, it doesn't work . . . somewhat . . . When the user clicks the compute button, the total value of inventory is computed by multiplying the cost per item times the quantity of the item and then adds the result to the value in an accumulator variable.
So far this is what I've come up with:
CODE:
The quantity and cost per item is suppose to multiply each row, but it only multiplies the first row.
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Mar 23, 2010
I am having some trouble with my program that I am doing. I am supposed to code the application so that it creates a report which I have done. Now the problem that I am having is I have to use an accumulator for the total sales amount in the access file. I am stuck on how to have it say "Total Sales:" and then have the accumulator with the ammount of $32000 next to it becuase I have to use the accumulator to total the sales.
[Code]...
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Nov 16, 2011
the code to use to add an accumulator so I can total up the items in my shopping cart?
[Code]...
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Aug 4, 2011
How to update the total cost after every item is selected and the user clicks enter...
Private Sub calcbutton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles calcbutton.Click
Dim amount As Double
Double.TryParse(amounttextbox.Text, amount)
Dim total As Double
[Code] .....
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Nov 22, 2011
I have list box with item priced. when a user select item and add to the cart then calculate it should display subtotal. My error is when I do it again my previous subtotal add to the next one.
this is my code
Option Explicit On
Option Strict On
Option Infer Off
[Code]......
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Jun 6, 2011
i am trying to teach myself vb (im only 14), and i'm not having a easy time. What im trying to do, i need a user to define a upper and lower bound of a range. From there i need to generate random numbers, a certan number of times, with in that range...this is my first problem.And then, i need to make counters to store/test all of these variables as even, odd, positive, negative and zero's ...that i need to append to a richtextbox to show how many of each. Im not even sure if rtb is the right object to use...you know, instead of textbox, or label?the last thing was to do with Private function as boolean. do I need this to test these variable?
[Code]...
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Mar 26, 2011
i need some help here, i want a result that shown a total number from student who passed some subjects. Let say there are 8 student who got A in subject chemistry, then the output should display result something like " there are 8 students who got A in chemistry". And also is it possible to combined the result, for example i want the output something like "there are "X" students who got A in chemistry and physics". where "X" is variable (number). it should trigger when winform is loaded. im using bindingsource.filter, but failed. because using bindingsource.filter need the input from user then it produce the output. whereas i want the result shown when the winform is loaded. How can i achieve this.
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Sep 20, 2011
I am using vb.net 2010. I have a datagridview whose data source is a data table. I dynamically add rows to the data table.
[Code]...
After adding the new row, m_table is correct. However, DVGCusClient not only adds this row, but also adds two additional blank rows at the bottom. I have no idea where these two blank rows come from. Why I use above code is as follows: Use a data grid view to display data. When a user clicks a row, another form is opened which allows user to search/input some data.When the user closes the form, all data is saved to a data table and shown on the data grid view.
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Oct 14, 2010
I have an array variable (string type). It contains certain no. of items, that I donot know how many they are. I need to run a loop for that many nos. that the array contains. I tried LBound and UBound loop but it says my array is not a system array. How can I know how many items my array contains?
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Nov 8, 2011
When I enter the quantity variable the script will not calculate. What am I missing ?
Public Class frmMovie
Private Property intQuantity As Integer
Private Sub txtName_TextChanged(ByVal sender As System.Object, ByVal e As [codee]....
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Mar 6, 2012
I'm in a beginner programming logic and technique class that also teaches us VB, and I'm working on a program that is to simulate total theater revenue, that asks for the number of tickets sold in a particular section and then displays the amount of sales generated from that section. It needs to validate that the total number of tickets sold is not over the maximum seating in that section.[code]
1) I have a warning that "Variable 'section' is used before it has been assigned a value. A null reference exception could result at runtime" in line 18.
2) Regardless of the changes I've made, I always end up getting "0" as my end result. I'm actually supposed to use the toString currency format function when getting my end result, but that was mixing me up so I figured I'd at least make sure the output is correct before I fix that part. I thought I was on the cusp of having this working but I think I'm confusing myself more and more the more I mess with it.
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May 8, 2011
trying to set the result of dropdownlist to a variable but having great troubles.
Sub OutageSource(ByVal sender As Object, ByVal e As EventArgs) Handles Year.SelectedIndexChanged
Dim year As Integer
[code].....
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Apr 24, 2011
How do I assign the query result to a variable.I am using SQLlite. Below is the code for retrieving password from the User Table. I need to compare the given password and the given password.
Dim i As String
Dim p As String
i = txtUserID.Text
[code].....
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May 21, 2010
I'm looking to store the result of SQL count function in a variable, i've tried numerous ways but haven't managed to get it to work?
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Oct 11, 2011
Im trying to get the result of an SQL statement and store it in an integer variable "count" in vb so it can then be displayed on my website showing the user the total Open records:SELECT COUNT (recordID) FROM [tbl_Records] WHERE [Status] = 'Open'
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May 17, 2012
I'm just wondering if it's possibe to get the results from a query and then assign the results to a variable. So I will run a query which will return the names of the tables stored in the database, then I want them to be stored in a variable. So it would be something along the lines of:
Dim strFrom AS String = "FROM "
strQuery = "SELECT * FROM information_schema.TABLES WHERE TABLE_SCHEMA = 'Database1'"
con.Open()
[Code]....
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Jun 7, 2010
How do I code the total cost to give me a pound sign with the total cost at the moment when the total comes up for an example it gives me 3.6 when I need it to show £3.60 here is the code I have so far. [code]
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Apr 29, 2011
Private Sub cmdLogin_Click(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles cmdLogin.Click
Dim conn As MySqlConnection
[Code]....
i supposed it can show the result of count(ID), in this instant it is the number of records count on the OUTBOX so the debug.writeline is RESULT, instead of now it is showing "SELECT COUNT(ID) FROM OUTBOX"
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Jul 31, 2010
I'm relatively new to VB. I want to perform a SELECT statement that uses a variable to return a value, example;
mysql> SELECT room_description FROM room_descriptions WHERE current_room = 'someVariable';
And display the result in a TextBox i.e. TextBox.text = someVariable.
So how do I perform a query from VB that passes a variable? How do I assign the result to a variable?
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Jun 12, 2011
Variable 'loNode' is used before it has been assigned a value. A null reference exception could result at runtime.
why I am getting this error?
Imports System.Xml
Module Module1
Sub Main()
Dim doc As New XmlDocument
[code].....
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Nov 16, 2011
code to use to add an accumulator so I can total up the items in my shopping cart?
Public Class MainForm
Private Property LabelText As String
Private Property ValueType As Integer
[code]....
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Oct 6, 2010
The pay rates for the project are:
a. Level 1 - $10.00
b. Level 2 - $12.00
c. Level 3 - $14.00
d. Level 4 - $16.00
e. Benefit Deduction Rate - 0.10
f. Overtime Factor - 1.5
For ease of program maintenance, all of the above rates and factors must be stored in module level constants. All references to pay rates in the program must refer to the module level constants.
When the Calculate button is clicked:
a. The value in the Hours text box must be validated to insure that it is numeric value greater than zero.
1. If the value is not valid, a message box must appear as shown below and the user must be offered the option to continue processing or quit the program.
2. If the user chooses to continue processing, the focus must be set to the Hours text box.
3. If the user chooses to quit, the program must close immediately.
b. If the value is valid, the program must calculate and display the total pay in the Total Pay label.
1. The pay rate is determined by which Job Grade radio button is checked.
2. For hours less than or equal to 40, the total pay is the hours times the pay rate.
3. For hours greater than 40, the total pay is 40 hours times the pay rate plus the hours in excess of 40 hours times the pay rate times the Overtime Factor.
4. If the Full Time radio button is selected, the total pay must be reduced by the Benefit Deduction Rate.
5. The value displayed in the Total Pay label must be formatted with a dollar sign and with two decimal
places.
6. The focus must be set to the Hours text box.
Why i get an error when i try to run this code
Code:
Also the message box, both yes and no close the program.....
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Oct 28, 2008
I am working with VB 2008. I want to be able to run this program say in N: and it will show me in an excel sheet the following:
Folder Path Size(GB) Count of Files
N:Clients 0.53 308
where clients contains subfolders and files and the size is the total of all those files within each folder and the count is the total within each folder also.
This works fine as it is but i have to select one by one the top level folders and some of them are huge so it takes forever to give me an answer.
1) I would like to see in my spreadsheet the following by only select the network drive n:
Folder Path Size(GB) Count of Files
N:Clients 0.53 308
N:Software 10.7 15430
N:Billing 0.98 105
2) I would also like to know if this is the faster method.
3) I tried adding a progress bar so that the user can have an idea of how much this will take but i had to remove because it was not working.
4) I would like to see the folder name, size of folder and count of files in the listview.
Here is the code:
Imports Microsoft
Imports Microsoft.Win32
Imports Microsoft.Win32.Registry
Imports System.Collections
[code].....
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Nov 7, 2009
This is for vb.net I've been working to develop a system which involves computation.What I've been trying to develop in my program is, I have a textbox where user will enter a numeric value,there is a button and a label below and in the first place the label should be set to zero. Everytime you enter a numeric value in the textbox and click the button it should add the value in the label and should save the value in the label so even if you exit the program whatever the last value displayed in the label should remain the same when run the program again,I believe it requires a database to save the value.Basically its like with payment system which saves the total amount of all payments made.
This is how should it works,say for example,if you will enter 1,2,3 it should save the sum value which is 6 in the label even if you close the program and when you run it again and enter another value it should add to the current value which is 6.
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Nov 30, 2010
I am currently going through Murachs Beggining .net programming book. I am trying toimplement an application for an exercise at the end of chapter 5. The applicationspecification is as follows.
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Jun 8, 2011
I am using visual basic 2008 amd creatomg a datagrodview format like below [code] Now I wnat to get total balance in total column after less discount in percentage with ENTER EVENT proceedure and get the whole total column balance in a textbox i.e Net BalanceTextBox. Please tell me how to calculate discount in percent % and get total in total column and also tell me how to move cursor in next cell instead of bottom row in datagridview.
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Apr 22, 2011
I have 3 columns in a unbound datagridview, "length" "height" and "Total". Total = length x width and the final total in TextBox outside of the Grid. I found question simalar in this forum and tried the code but i am getting errors.The following is the code i am using
Public
Class Form1
Dim UnboundColumn[code]...
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Apr 13, 2012
OK, so my accumulator is now adding and showing properly in the form as a total. However, something is wrong in my if... then statement and it's not throwing it to the 2nd level after reaching the 125.*Edit to show updated with the Do While Loop. Now causing issues with my input error msgbox... *
do while decTotalCredits < 125
If IsNumeric(txtCredit.Text) Then
' This statement will convert the string entered to decimal and establish the
[code].....
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Apr 25, 2010
Okay my assignment is to change a code up using two functions instead of a subprocedure to calculate total rainfall and avedrage rainfall and then to add a startover button to the application which not only clears all the labels but also clears the counter and accumulator. This is what I have gotten so far my functions do not work and I can get the labels cleared. I just can't get the counter and accumulator to reset back to zero
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Apr 23, 2012
I am trying to maintain a total for multiple collection objects in a class. When I create a new object, it resets the total to zero, only adding the current value being passed to the function. I have tried to use a static variable, create a second variable to hold the old total while adding the new value. The base class holds the total value, while the sub class creates the new object that holds information. I am passing the new value to a function in the base class adding the new value to the total when each new record is created.
[Code]...
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