I am making a calculator Program to start off on visual basic. I got it to work with MsgBox, but now I'm trying to get it to work with the Print.
MsgBox Example
Public Class Form1
Private Sub Button1_MouseClick(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles Button1.MouseClick
Dim Pizza As Integer
[Code] .....
Say I type in 6 and 6 I'm getting errors saying Example: Conversion from string "youranswer is 12" to type 'Integer' is not valid. I've tried many things, but it's not working. I want to know what I need to do to get it to print out how I want it. Do I need to do some conversions properly somehow?
how to build a simple calculator in VB; i got the interface with buttons and text box alredy and i figured out how to put more then one number using buttons alredy(Disp.Text = Disp.Text & 1) , Looking at the windows calc, how do you store the number u just entered into a text box and alowe user to enter another to performe calculations, what code should i use for equal button and etc.
i am going creating a simple function calculator, but I had to first do a design documentation proposal. I now have to update the project proposal with a storyboard or list of menu and screen items to delineate my proposed user screen and menus.aside from the calculator itself there will not be any menus.I also have to list any user data inputs and outputs my application will require and produce, which i assume i can put any numbers that the user inputs into the calculator and their results.
I've got the bulk of a calculator up and working, however it doesn't like multiple operations. For example 3x5+2= brings up 10 (i.e. 3+5+2) and even doing it in two parts doesn't help, if I enter 3x5= I get 15 then +2= gives me 32 (i.e. 3x5=15 15x2=30 30+2=32). Also I am getting trialing zeros in my command line I can't debug.Note that lblcommandline displays the whole function and lbldisplay just displays the current imputted number.
Public Class frmSimpleCalc 'This code is run when the program starts. Here we 'declare' or basically, define which variables we want, what they are and such. 'So, for this example, we need two variables. The number we are CALCULATING and the one which we will CALCULATE FROM. Dim lCalcNumberMaster As Long 'The master number is the solution, the number stored and displayed when we click equals.
Simple Calculator multiplication and division Trying to make a simple calculator. My program inputs numbers and arithmetic operations thru commandbuttons. The numbers, num(n-+1), are odd and the operations, op(n), are even. The code is based on the even op string. Every time a op occurs it is stored in numop(n) to be accessed later. I have all the other operations in sequential order: "*"," "/, "+" and "-". The other similar For-Next loop are the same just interchange the two * for /, +and -. The "+" and "-" work fine in this configuration.
My problem is the multiplication and division does not occur. The numbers and operations line up. The numop(m)=g*h should yield numop(m)=num(1)*num(3). Is there some sort of code to be inserted to accomplish these multiplication and division operations?
I am trying to make a simple resistance calculator for practice. I use text boxes to let the user input the current and voltage, and then a combo box for the units and then a list box to display the results. For some reason no matter which units I select it doesn't convert at all. For example 1/2 will always show up as 0.5 in the list box no matter which units are selected from the combo box. Here is my code.....I know that there is more cases but I only put one to see if it works before I write all of the cases.
Public Class Form1 Dim unitsA As String Dim unitsV As String
i have to finished a cacluator, all my code seems to be working apart from the equals button and i do not understand why..i've tried several different things such as a case too but nothing seems to work to get the equals button working. This is my code, no need for all the buttons they are the same and ive declared variables.
I am trying to develop a simple math calculator that will allow the user to input the right-hand-side (RHS) of an equation into a textbox on the application and have the application evaluate the expression for a given value of x, which is also input into the application by the user via another textbox.For example, if the user wants to evaluate the following expression,
y = 3 + 4*x + 5*x^2
then they would input into the textbox the RHS of the equation
3 + 4*x + 5*x^2
and then enter a value of x into the another textbox and click on the calculate button.I tried this:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click TextBox1.Text = "" End Sub
This is to Clear all numbers but I don't know how to Clear just one number. for example i want to do 23 once a user clicks CE, i want to make it show 2
I am making a calculator at the moment and the plus works and so does the minus well the minus does the FIRST time but not the time after that.you would normaly get 2, but instead it says that the answer is -3.I have attached the calculator so that you can have a look.
I'm new in the programming area and I'm having trouble making a calculator. My question is: How do I make the calculator work using only the keyboard, without the need of mouse.
I tried this: Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Me.KeyPreview = True End Sub Private Sub FlowLayoutPanel1_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles RESULTADO.KeyDown If e.KeyCode = Keys.NumPad0 Then [Code] .....
It only works on the text box called Result. I want to know how do I make work in the whole Class, and if it is possible, to make it work on two different Classes without writing twice the same code.
how to do programs in Visual Basic 2010 (It's a Currency Converter/Import Duty Calculator) and I've come across a few problems which are listed below.Basically the project is like this:I'm trying to create a program which converts Hadean pounds, shillings and pence into British Pounds and Pence before it transfers to a form which calculates Import Duty and VAT, after which it gives the final price.So far, I've created a program which is made up of 2 forms and a Splash Screen. The information listed below is for those who want to know more about what I'm trying to do.Once the Hadean price has been converted to Sterling additional import duties and VAT must be added to the Sterling price. Thus control will pass to a 2<sup style="text-indent:0cm;">nd</sup> form where importation duty is added. Depending on the method of importation the followig duty should be added to the Sterling price:
Is there a way to print simple text in Courier New? No pictures, no fancy fonts, it's all the same size, and no margins, etc. Is there a VB.NET function for this?
Can anyone point me to the right thread where theres a guide how to make a simple print report from .net 2008..Basically what i need is a simple report database is ms access and the database is dynamically stored on a string,on vb6 its something like rpt. but on 2008 i don't know really how to implement this one.can anyone help me work like a dynamic or on a hardcode program,not on a static settings.
I am trying to get a query to work with Visual Basic 2010 Express addition I have pasted the code below but it just errors out with to many arguments I have taken this sample from a reference book but cannot get the darn thing to work. I have looked all over the net and Microsoft for a solution but still no go if any one can help it would really be great. BEP
Private Sub FillBypeeps1ToolStripButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles FillBypeeps1ToolStripButton.Click
How can i print out an textbox with a simple click button? i prefer it with a dialog where people can select there printer. This is what i found but it doesnt work
Private Sub Button84_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button84.Click Printer.Print(TextBox11.Text) Printer.EndDoc() End Sub
Can anyone tell me what is wrong with this code? It looks OK to me but the GetImage function returns the same image irrespective of the filename passed to it (the one corresponding with Id=2 which is the second one found) [code]
My Com1.text has nothing in it but yet the button1 is still visible when it should be false and not showing. This worked fine in vb6 using command.caption.[code]
So i know this is more Math related but it would make life so much easier. What i want to do is enter 2 times into 2 text boxes and then subtract them from eachother to find out the hours inbetween as a decimal.
I need to design a simple label designer that could print labels for shelf items, just like in a grocery store. The requirements are that the label shall contain a name, a barcode (e.g. Code39 symbology), price and room for some extra text.
