VS 2005 - Result After Calculation (Addition Or Subtraction) Zero
Oct 14, 2011
I got a problem with my calculation .The problem is after addition and subtraction calculation I only get result or answer 0, .There are not a correct answer. I try to change the datatype of the variable to decimal and double but answer is still 0.
Here is my coding.
Private Sub btnadditionprice_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnadditionprice.Click
Dim sum6, sum9 As Decimal
sum6 = Val(Me.ItemPriceTextBox.Text) + Val(Me.txtadditionprice.Text)
[Code] .....
Answer which got is 0.000
i am currently making a maths game but i have run in to trouble trying to do the addition and subtraction side of the game. This is my current class file for my multiplication
Public Class Class2 Private Property question_gameplay_label As String Private Property correctAnswer As Integer
I have made my calculator and it has 2 textboxes where the 2 numbers (or values go for addition and subtraction) are input and a label where the answer appears. There is other things on the page such as quit, clear etc thats all done but i have one query. I noticed while testing a problem occurs when only one number or value is put into a textbox and a command is hit. For example. one textbox (txtnumber1) has one number in it then i hit multiply and it says the error of course because its not programmed to deal with this (or divide by 0 of course) so i was wondering how i could make so when this happens a MsgBox appears saying a value must be in both boxes or when divded by zero is says something similar.
The line of code:
Private Sub blah blah blah...
If txtnumber1.Text = False Then MsgBox("Please Input Valid Value")
I need to create a tiny calculator using the basic operators of Addition, Subtraction, Multiplication, and Division. My professor hasn't really covered much of this, so I'm not to sure how to create it.
I'm writing a program for my algebra students to practice integers.Stuff like....
3-6 -4 + (-5) 3(-4) -15 � 3 etc.
I want to show an explanation and for the addition and subtraction, I want to show it on a number line. For example, if the problem is 3 - 7, the number line should show and arrow to that goes right to 3, and then left 7 units (starting from 3). Then the student can see that the answer is -4.I could probably do this with some string manipulation, but what would be the easiest way to do it in a picture format? Maybe a bitmap.
i am creating here coding which use to substract number in database from textbox. In my coding i use textbox which receive number from user and it will subtract a number in database. For your info i am using UPDATE sql command for this operation . In the same time i also create table name InItem and have column name Itemquantity After i click the button i got an error InvalidOperationException was unhandled from my coding Here is my coding and please correct my coding if it have missing part. I also highlight which code give this error. Oh ya , is that my sql command for subtraction is correct? i also not sure cause it get it from internet.If my command if false please show me with correct command..
i have three text boxes that the user will input numerical data into to determine the area of an object. i need the result of my calculation to be displayed in a label but i cant figure it out.
i am creating here coding which use to substract number in database from textbox. In my coding i use textbox which receive number from user and it will subtract a number in database. For your info i am using UPDATE sql command for this operation . In the same time i also create table name InItem and have column name Itemquantity After i click the button i got an error InvalidOperationException was unhandled from my coding Here is my coding and correct my coding if it have missing part. I also highlight which code give this error. Oh ya , is that my sql command for subtraction is correct? i also not sure cause it get it from internet.
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Dim ra As Integer
i have 2 list boxes.. Qty and Cost both of these are populated from a sql database. The code is suppose to read through the listboxes and multiple the Cost by the Qty and then replace the Cost with the new result. The Cost listbox is populated with the cost of one item. The reason i am not doing this calculation in the sql query is because the sql query is very complicated filter out a bunch of stuff to show just the qty of the item...
got a project from college to create a quotation system in console application for a car company. The program has to tell the customer how much interest they'll be charged and the loan they take out.I've created a file that Adds,deletes,edits customer. Also views all customers. The problem I have is that after I've added the customer. I need to now implement the calculations into my program to then give them the quote. Also need to add a password to the program.
I want to assign values to ifitems in a combo box B brand "ex. Focus = should be $200": items in comb box C "specific years ex. 2006" ANDuse this information to calculateInitialPrice
1. The "InitialPrice" is the default price for the selected brand and model of a car in 2006. I'ved used this code but it's not working.. or am not understanding.
I am trying to make a VB User Interface with Visual Basic Express Edition 2005 where clients can do the following calculation: Stranding x Bare Copper CMA = Total CMA
I have created an access 2007 database called Total_CMA, this database has 2 columns, one with the SIZE and the other AREA, but in this database the Size = Area ( was not sure how to set that up properly ) so I left it at 2 columns and then went to VB and set up with a listbox for the Size and have bound the database to this listbox, and when I debug it, the numbers for Size show up in the listbox, so thats looking good so far, since the size = area when I bound it it asked to get and I picked Size then it asked value equals so I picked Area and hope that was the proper thing to do.
I added a TEXTBOX named STRANDS for the customer to input the number of strands, then a button to click to calculate total CMA and another Textbox named TOTAL to display the results. All have labels next to them naming what they are.
My question is, how do I get what the customer selects in the listbox to multiply by the STRANDS textbox and output in the TOTAL textbox when clicked on the button to calculate total CMA. I also need to make sure whatever SIZE they picked in the listbox is going to take the AREA number ( not the SIZE number ) and multiply it by the STRANDS textbox.
I am using a from where i am adding the time of the employee....what i am doing is that if the total hrs worked on monday = 20 hrs and on tuesday = 20 hrs then i want to add the 20 + 20 = 40 . all of my variables are time span and that is y it resets after 24.
Protected Sub Button4_Click1(ByVal sender As Object, ByVal e As System.EventArgs) Dim total_rental_chargeTextBox As TextBox = FormView1.FindControl("total_rental_chargeTextBox")
I am using the following code to get distance between two propertys. The problem i am having is each Distance Calculation is being obliterated and I am only geting back the last Calculation instead of each calculation/distance
i need help how to add odd numbers that are in my 6 textboxes collection and to see the result to label1 and how to add the textboxes that have numbers less than number 5.
I have two counters set up, one for dealers games won and the second one for players games won which both add up the results and displays them in a text box. I have another form made to display Statistics, for both 'This Session' and 'Overall', but how do I save the Overall score?? How can I keep a score saved after the game is closed?Is it something to do with the game setting?? Is there a my.settings option that I should be using?
In my "Select" statement I have this: Int((Date()-dob)/365.25) AS Age I would like to do the same thing in VB .NET code. I plan to do something like: editBoxAge.Text = ....... dob would be stored in datePickerDob.Text
in one textbox i have 10:00 PM and in another textbox i have 12:00 PM....i want to subtract 10:00 PM from 12:00 PM and get result ie 2 hours...how can i perform that?
DateTime.TryParse(TextBox1.Text, d1) DateTime.TryParse(TextBox2.Text, d2) the code is to convert the text into time.
Since you are repeating same operation three times it is best to make a function for it.
CODE:
labels 1-6 are randomly generated numbers, text boxes 1-3 are the input boxes and the code above shows how if the answer in the textbox equals the labels added together, you win. This code works -
I have created labels 7-12 now, and textboxes 4-6. How can I extend this program so it has subtraction as well?
If this problem definition isn't detailed enough, let me know and I'll add more detail to this description.
I would like to sort my query result alphabetically Ascending by LastName and alphabetically Descending by Gender. I want to display Male first then followed by girls. I tried the code below but obviously is not the answer.
SELECT TOP 50 PERCENT IDNo, LastName, FirstName, MI, SectionName, YearLevel, Adviser, Gender FROM tblEnrol WHERE SectionName = 'Sec1' ORDER BY LastName ASC, Gender DESC
i'm working on a simple 3D CAD to create complex 3D objects. This application uses:
1. Direct3D to render the objects 2.The methods contained in the Mesh class (such as Mesh.Box(...)) to create them 3.The Matrix class to apply some basic transformations (such as Translation or Rotation)
My issue is to do a boolean subtraction of a Mesh to another one to create a more complex Mesh, for example a Mesh with holes.
can I subtract a value from the value in the previous cell or cell above.I have created a stopwatch, and previous to using a datagridview, ive been using labels with this
If LapTimeLabel1.Text = "0:0.000" Then LapTimeLabel1.Text = StopwatchLabel.Text lapTime = DateTime.Now()
I am writing a program that sims a cash register. Everything works fine except VB will not compute subtraction. If I put a replace - with + everything works. What could be the cause of this?
Here is part of the
'Convert input into number isConverted = Double.TryParse(owedTextBox.Text, NumberStyles.Currency, NumberFormatInfo.CurrentInfo, owed)
[CODE]...
***********If owed is 10 and paid is 5, it returns 0, but if I change the - to either a + or *, it returns the expected value
