Make A Calculator With One Textbox And 16 Buttons?
May 8, 2012
I am trying to make a calculator with one textbox and 16 buttons. Buttons are:(0,1,2,3,4,5,6,7,8,9,+,-,*,/,=,C). So here is code for now:
vb.net Private Sub nula_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles nula.Click
TextBox1.Text = TextBox1.Text & 0
End Sub
Private Sub jedan_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles jedan.Click
TextBox1.Text = TextBox1.Text & 1
[Code]...
When I add those numbers and operators its easy, but how make operations really work now?
Im trying to make a simple quiz in visual basic all it has is a label a textbox and two buttons. one of the buttons if for checking if the answer is rite while the other is to go to the next question. i want to make it so when the next question button is clicked the label changes to the next question and the textbox is cleared and then when i press check it checks the answer.
To pass decimal values to radio buttons so I can calculate an output answer. it is a tip calculator. I am using radio buttons as options to choose what amount to tip, ie. 10, 15, and 20%. I need to figure out how to pass the value to the buttons in code so I can calculate the tip amount.
how to make a zodiac calculator, I know the basic codes that I need to insert, but I'm creating it in a windows application. The day and year are text boxes that the user can input that particular information, but the month is a drop-down box. My two questions are: Is it okay to delete the private sub of the day and year so I can combine them into one sub? And how do I get the months to show up individually in the code area? Or would I have to delete the drop-down box completely and make it like the day and year text boxes where the user can input the information themselves?
I mean not like windows xp which the number and signs are not in the same textbox, but like windows 7 which you can see the whole calculation before pressing equal, and i don't think that compute.datatable can do this because it's limited with the basic signs(+,-,/,*) and it doesn't include the other signs(like : sin,^,root,log), so how to make a calculator like windows 7 one?
How to make this calculator:2 Texboxes In first textbox is writeble (where user will write the version) The second textbox is notwriteble ( there will show the result)In the first textbox to make calculation of version.If user writes for example: 1.03.11 In textbox2 to display the calculation: 22656 If the user writes for example other version:1.05.50 In textbox2 to display the calculation:22895and the same way if user writes 1.03.24 or other numbers auto to calculate the versions, and if user writes a bad text in tetbox2 to display error: For example In textbox1 user writes text: omg In textbox2 shows : Error Only if user writes number like this: 1.03.11 or other number will calculate it else to shows error
I posted this in the wrong part of the forums. Using visual basic 2008 and keep geting this message whenever I try and test this calculator program I've been mucking around with for the past 2 hours.
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
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'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.
On the Form1.vb I've to combo boxes, 1 to display class names and 1 for levels. Also have some Labels to display i.e. the base_STR number. But after trying random stuff to get it linked and closed VB to restart again because it was messed up too much
I am building a scientific calculator. 1. After I clicked the Sine button, I get the result in a textbox.. When the result is there, for example: 1 radians Sine = 0.8414.... I can still put numbers at the end of this result.. like button 5 will be 0.84145, so how can I disable that? 2. After I get the result from a calculation, the textbox should be cleared when I insert a new number.
so i am new to v basic and as you can see in the picture below that i have 2 textboxes just to put in them 2 numbers and then do mathematical calcualtions on them and a label up there that shows the answer so i wanted to make 1 textbox to type in the 1 st number then press the symbol for example + and then type the 2nd number and then press equal so the result is formed in the same textbox the only problem is idk how i searched google but i couldnt understand here is my source code
I'm trying to make a calculator that adds from two text boxes and displays the answer in another box, but It gives an error when someone enters a character. What can I do to display a string error message in the third box if a letter is entered in one of the first two boxes instead of a number?
I'm new to the forum and new to programming with Visual Basic Express 2010.I would like to built a special calculator.Calculator will fall in number in the link provided on the website.
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:
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Ok so I have a launcher and I made my launcher a dialog box.On the dialog box there are 2 textbox and on my launcher there 2 buttons.So the "user" will put a link on the textbox and click save.now on my launcherwhen you click those buttons its will link you to what they putten on the TextBox.
I have a form with a calendar and a textbox with 2 buttons. The calendar is the vb 2010 tool and the textbox overlaps it so that when a day is selected on the calendar you can make an appointment for that day. i have a save button and a back buton.I am having trouble with the save feature there is always a file error. [code]
im using VS2005 and when using a tab control on my windows mobile 5 pocket pc emulator im creating a design but im unsure how to get all my radio buttons,textbox's ect to stay on only one tab? so when clicking tab 2 ect the next tab is clear ...
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