Displaying A Mathematical Formula In A Form?
Jun 21, 2010How can I print a mathematical formula in a form? For a example I found in wikipedia a guide to do it in HTML: [url]
[URL]
But how can I do it in VB2008, showing the formula in a form?
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Textbox Not Displaying Correct Formula?
Mar 18, 2009everything in the code works except for 1, in line txtTotal.Text = (Val(txtHomeTax.Text) + Val(txtLandTax.Text)) is where i think I'm having troubles. it shows 0 everytime, I use val but it still shows 0. but if I remove the val, it will show both numbers together
Public Class frmMain
Private Sub btnGenerate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnGenerate.Click
[code].....
What Is The Formula For Button Click Event (go To New Record On A Form In VB)
May 8, 2009what is the formula for button click event (go to new record On a form in VB)i have a form with a button and when clicked i wish to go to a new record (add new Record)I have a table which i created. and from that table, i created a form. and on the form i put a button.I want this button to open up a new form, so i can put another record in the same table?
View 9 RepliesImplementing Radio Buttons - Select One Of Them To Use One Formula, And Then Select The Other To Use Another Formula
Feb 20, 2009I want to place two radio buttons in so I can select one of them to use one formula, and then select the other to use another formula. I want to use the I=P(1+r)^n formula and I=P(1-r)^n formula with the radio button text showing Appreciation and Depreciation.
Heres my copy of the original code.
Public Class Form1
Private Sub cmdExit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdExit.Click
End
End Sub
[CODE].......................
Displaying Contents Of Ms Access Database Form On A Form Using .net?
Sep 16, 2011How to display contents of ms access database form on a form using vb .net...in visual studio
View 7 RepliesEvaluating Mathematical Expression In A String?
Jul 7, 2011Is there a method that allows me to evaluate a mathematical expression in a string? Example (Not actual Code):
Input = "2+2"
Output = SomeMethod(Input)
Output = 4
Update: Nevermind, I found a way around it by using DataTable.Compute.
Mathematical Calculation Model Code?
Jan 7, 2009i need mathematical calculation model code.
View 2 RepliesMathematical Program (Function To Workout NCR)?
Mar 11, 2009i got bored earlier so instead of doing my Maths homework i thought what the hell why dont i make a program to do it for me. The problem is im getting an error with my NCR function.For those of you who dont know NCR is used in calculating Statistics generally it goes like this
[Code]...
Syntax For Mathematical Operations As SIN , COS And TAN In VB 2005?
Jan 30, 2010What is the syntax for mathematical operations as SIN, COS and TAN in Visual Basic 2005?
View 1 RepliesVS 2010 Reading A Mathematical Operation?
Dec 15, 2011heres the problem lets assume i have a label1 which its text is "(y+1)"i defined an integer, lets assume its x i made some operations up and lets say there can be diffrent results and i want to replace y with that math ops result and then define x as it writes in label1..
[Code]...
Compressor & Decompressor: Mathematical Smallest Combination?
Jul 12, 2009How to load file and save it as different filename? It saves almost twice the original size for some reason?
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim iFile As System.IO.File[code].....
Question 02:How to load it as numerical values?
Question 03:How to try applying an array of mathematical functions to the numerical values to see if size reduction is possible: I want to try testing all mathematical functions with any and all mathematical values of smaller size to see if the file can be compressed.
Create (fast) Mathematical Equations At Runtime
Jun 16, 2009Is there a way to create new mathematical equations at runtime? Obviously you can pass new variables to a given equation, but I need to make a new equation altogether (then give it variables).
[Code]...
Expected Value (mathematical Expectation) In Visual Basic .NET?
Nov 21, 2011I've got a program which starts with welcome screen "Enter the number of the random variables X" and this number refers to the columns. If it is entered 5 => a DataGridView will be created with 5 columns and 2 rows (first one is for random variable entered by the user, and the second is for probability). For example:I have to multiply x1 with probability p1, value x2 with probability p2, and so on. So EX = x1*p1 + x2*p2 +... Here comes the question - how to multiply and then add them?There are only 2 rows, that's how much I need :I've enabled only 2 rows, that's how much I must have for this program:
Const allowedRows As Integer = 2
Private Sub DataGridView1_UserAddedRow(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewRowEventArgs) Handles DataGridView1.UserAddedRow
[code].....
Mathematical Equation - How To Disable Numeric UpDown
Dec 21, 2009This is my way the dynamically generate a mathematical equation everytime the button is click. However, I want the combobox or the numericupdown turn disabled when the next question show out. For example, if the question N is generated, the combobox and numericupdown of question generated before N must be disable means that the user only can input to the current question but cant change the answer of the previous question?
Private Sub btnnext_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnnext.Click
If counter < 10 Then
Dim pnl As New Panel
pnl.Height = 40
pnl.BorderStyle = BorderStyle.FixedSingle
[Code] .....
Evaluate Mathematical Expression From User Input String?
May 19, 2010I am making a simple calculator that will evaluate functions I have a entry box and the user types in simple equations i.e. 1+4*3/5=? how would i make this evaluate the string?
View 7 RepliesHow To Make A Program In Which The User Can Input A Mathematical Function
Mar 29, 2009i want to make a program in which the user can input a mathematical function so the program can then work with it. So the user would input something like x^4+x+2 and then an x and the program would calculate f(x). What i don't know is how to let the user input the function.
View 6 RepliesUses Of Arrays In Programing - Mathematical Concept Such As Fibonacci Sequences?
Feb 7, 2012I am trying to get a better understanding of the uses of arrays in programing, and have been wondering why do programmers use an array when working with mathematical concept such as Fibonacci sequences? why are arrays so prevalent in coding now a days.
View 3 RepliesVS 2010 - How To Use Mathematical Signs As Label Text Randomly
Oct 29, 2011How to use the signs "+", "-", "*", "/" as label text randomly. I am trying to create a math game for my kids. There I need a random sign to display every time they get new question to solve. I am able to display values [random numbers] but could not able to use this signs randomly as a single label text.
View 8 RepliesWhat Data Type Will Allow The User To Input 0 And Allow The Mathematical Functions To Work Properly
Mar 29, 2011I am currently using double data types. The problem I am encountering is that sometimes the user will have to input a value of 0 in the required text box and this creates an error. My question is what data type will allow the user to input 0 and allow the mathematical functions to work properly. Decimals maybe?
View 8 RepliesDisplaying A Pop Up Form?
Dec 12, 2011how to display a form like a menuStrip?
View 1 RepliesDisplaying A Pdf On A Windows Form?
Aug 24, 2009in vb.net is it possible to display a pdf file on a form?
View 3 RepliesDisplaying Child Form?
Mar 15, 2011There are two panels in my parent form. In the right panel there is one list view. The problem is that whenever I load the child form, the child form goes back of the list view. I want to load the child form at top of the list view. I tried to set the property of list view
View 2 RepliesDisplaying Form On Second Monitor?
Jun 6, 2011in vb, is it possible to open a form on a second monitor, apart from setting the forms screen position?
View 1 RepliesDisplaying String Value In A Form?
Oct 15, 2011How do i display the value of a string variable in a textbox that is in a form without pressing buttons in the form?
View 14 RepliesDisplaying Text On Form?
Jan 26, 2009I need to display text on the form (not a msgbox). A large text box would be acceptable if it's background could be made transparent with no border, but it seems that is not allowed.
View 7 RepliesDisplaying Web Browser On Different Form?
Nov 26, 2011I have a web browser on form2 and I got it to display in form1 and in a panel. But how do I get it to auto re-size in the panel on form1?
View 3 RepliesForm Not Displaying Properly?
Mar 30, 2010I have a windows form with listboxes, buttons and a checkbox. It works fine at home but when I take it to school it doesn't display properly. I have been given full privileges and the .NET framework V3.5 is installed. I have all my buttons/checkboxes on the right hand side but they don't display like they aren't even there (there is no extra blank form space either). The form sized wasn't locked
View 3 RepliesSecond Instance Of A Form Displaying
Nov 10, 2009I've been working on a project now for some time and as a result, when I have something new to try out, I do a little "proof of concept" project and then port it over to my real project (mainly to make it easier to follow when trying to work out new issues).Up to now, I've been relatively successful at it.But here's what I'm running into with this particular project.First, a little background.When the operator enters data into certain input fields (textboxes), either a listview or a datagridview appears displaying multiple columns of information.Once the line is selected with the proper info (equip. id or type of job or whatever), that info gets displayed in the textbox.The problem occurs when display is clipped by the window size.Let's assume for simplicity sake that I can't enlarge the display window.
So I rethought that and decided to create another form that has no borders and the only item displayed is a bound dgv.So I created a proof of concept project that consisted of two forms: form 1 that contains a text box and form 2 that contains a dgv control.when run, form 1 is displayed.When I type a character in the textbox, it calls form 2 and searches the dgv for the first char I entered.Since form 2 is the current form, as I enter additional chars, I build the string, search and if the chars are valid input chars, echo them to the textbox.Once the data line on the gridview is found, the tab key is used to do the select, close form2 (the dgv) and populate the textbox of form 1.This all worked.That is until I tried to port it over into my real project.This is where I'm obviously missing some key aspect of VB.Net and how all the forms and threads and handles work.To get right to the issue and skip alot of what happens in my real project, I was able to duplicate the problem by just creating one more form in my proof of concept project that just has a button on it.That button when pressed, brings up form 1.When I start to type in the textbox, after I enter the first character, form 2 displays, which is as expected. But when I enter the second search character, a second instance of form 2 opens and it searchs for the second character I typed.If I enter another character, it gets added to the second char and located in the dgv of the second instance of form2.When I press the tab key, textbox of form 1 does not get updated but the second form2 does close.The first form2 remains.
Displaying A Sequence Value On Form Load?
Jul 10, 2009Iam using ab VB.net windows application. I have placed a label on an windows form, where the sequence value should display on this label each time the form loads.
View 1 RepliesDisplaying Data From Database In Second Form Using First
Feb 15, 2012I seem to be having a problem with displaying data in a second form. I've created a linear search algorithm which works just fine - it locates the records from the database. I now want to be able to display the record in another form, I've attempted this using the code below but it doesn't seem to work:
Public Class formSearch
Dim searchItem As String
Dim currentRecord As Integer
Dim Provider As String
Dim Source As String
[Code] .....
The commented out lines are the ones that don't seem to work. The "txtfirstname" and "txtlastname" fields are located in the coding of another form, called "formcustomers".