Calculating Values On A Form And Rounding?
Aug 6, 2009
With the application i'm building i have to do some calculating, ive so far not had to do anything like this so i could use some pointers. Here's the simplist of calculation i have to do, if i could get some help pointing me in the right direction i could probabaly figure the rest out.
It would be Box1value * box2value / 144 = box3 But if box 3 returns a value of less than 2.5 it rounds up. The rounding function is very important to subsequent calculations i will have to make.
So the this simple form would work where the user inputs a number into box one and two and the calulation appears in box 3. Attached is a mockup of the form design.
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Apr 1, 2011
I'm doing an assignment for class which is basically a simple program that takes 12 monthly temperatures and averages them. But I also need to round the average to the nearest tenth. I am not particularly good at programming or math and don't know how I would fit this into my code. I am Including My program thus far. I put in bold and italic where the calculation takes place.
Private Sub btnEmterTemperature_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnEmterTemperature.Click
'FOR BUTTON CLICK EVENT "ENTER TEMPERATURE"
[Code].....
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Mar 8, 2011
I need to round a single variable up to the nearest integer no matter what the decimal points are, weather it be 74.1 or 74.4 I always need it to round up to 75.ere is a sample of the code i am using
'Varibles
Dim sngLength As Single
Dim sngWidth As Single
[code]....
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Aug 20, 2010
I have two text boxes that i divide together and i get a answer of 0.434931506 i want it to be 43 as a whole number or say 43.49.[code]
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Apr 1, 2009
i know this may soiund a bit of a n00bish question or 1 that pops out every now and then, but i am havin trouble trying to round off nubers.basically i ahev this label where a value i s inputted by the system after it goes thruogh user inputting so:1)user inputs somehting (* by somethingh)2) user input (* by something )etc etc.val(label1.text) = the additon of all those user inputs---to make life easier lets ust say user input1 = user input 2 k sometimes the val of label1 becomes a decimal point like 3453453.666777 etc when this happens i just want to round up to 2 decimal places i have looked on msdn for help which gave me:
[Code]..
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May 29, 2010
Im trying to calculate TextBox values, but asnwer = 0. I think strings are too big/long.
Example : TextBox1.Text is 0.2777777777 and TextBox2.text = 60
TextBox3.text = Val(TextBox1.Text) * Val(TextBox2.text)
then TextBox3 Text is 0.
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Nov 5, 2010
[code]i need to calculate the item on my datagrid(gallon_qty) but im receiving the error when running it
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Jan 9, 2012
i have a question on how to add two values of placeholder on different forms. in the forms i put a placeholder for "correct answer" and "wrong answer" so one of this placeholder will have a value of integer. how can i add a value on the first form to the other placeholder of the other form.
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Apr 21, 2012
I have to calculate values of several equations in an application. For example, one these equations could be:
d = a + b*z + c*z (this is what is being displayed to the user, assume that 'a', 'b' and 'c' are provided as textboxes, assume that z is a hardcoded value for now)
Now, the user could enter a=1.5, b= -0.5 and c = -0.6 (or even 'a' could be negative). So, I just tried a sample code for simple values but to no avail...
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As EventArgs) Handles Button1.Click
Dim val1, val2, val3_calculated, first, second As String
first = "8"
second = "3"
Dim arr(10) As String
[Code] .....
Error:
But it throws an error saying that I am not using any databind control.
Concerns:
First of all, is it necessary to use this "eval" operator in here? Is there any way to keep "-0.5" with the sign in asp.net using vb?
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Feb 25, 2012
I am making this for a homework assignment and i need to calculate the average for values entered in textbox1 and place them in other textboxes. I dont understand how to do this with numbers all placed in the same spot. here is my code thus far:
Private Sub Label1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Label1.Click
End Sub
[Code].....
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Jun 26, 2005
I have one text box that contains a value for the "Start Time" and another text box that contains a value for the "End Time."Both of the values are expressed in a format for military time (i.e. 1200, 1300, 1430, etc.).When the "End Time" text box loses focus, I would like the "Elasped Time" (expressed in minutes) to appear in a third text box.Seems easy enough...right?Well the problem I'm having is since the first two numbers in military time are base 24 and the last two numbers are base 60, a standard calculation subtracting the "End Time" from the "Start Time" does not yield an accurate result.
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Jun 1, 2010
I have a monthly forecast showing expense accounts by cost centre so columns headings look like:
Cost Centre, Account Number, Jan, Feb, Mar etc
Using VBA code to automate the process, I need to calculate the total for each month of each account number where the 2 left characters of the cost centre are the same. I have a formula which will calculate this (for one cost centre grouping/account) which looks like this:
=SUMPRODUCT((LEFT('Sheet2'!A6:A5136,2)="BE")*('Sheet2'!C6:C5136=AccountNumber)*('Sheet2'!D6:D5136))
I am not sure whether there is a more efficient way than using a formula like that (at the moment this would be used for 12 months on about 6 cost centre groupings with about 500 accounts each - though this would vary). Its not massive, but could be slow to calculate. I don't think the subtotals command is powerful enough, and I haven't used arrays for a long time (especially for what would appear to need a dynamic, mulch-dimensional array).
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May 19, 2011
is it possible to make the edges on a form rounded rather than a sharp edge?
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Apr 8, 2011
I have been able to do the exercise's in the first 2 chapters and half the exercise's in the third chapter of the text book (programming in visual basic 2008, Julia Case Bradley & Anita C. Millspaugh). but this one is making my head want to explode. please point me in the right direction with this.
Heres the problem. The company has instituted a bonus program to give its employees an incentive to sell more. For every dollar the store makes in a four-week period, the employees receive 2 percent of sales. The amount of bonus each employee receives is based upon the percentage of hours he or she worked during the bonus period (a total of 160 hours). The Calculate button will determine the bonus earned by this employee, and the Clear button will clear only the name, hours-worked, and bonus amount fields. A Print button allows the user to print the form. Do not allow missing or bad input data to cancel the program; instead display a message to the user.
Here's my code so far. its giving me the wrong results. i have tried many different ways,(hence the commented code) but I just dont know where im going wrong.
Public Class VB_Sales
Const BONUSHOURS As Decimal = 160
[CODE]..............
Attached image(s)
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Mar 26, 2008
I am using VB2008 Express and a MSSQL Server 2005 db by the way! I have a comprehensive SQL statement, which should fill my Grid:
DECLARE @Sum NUMERIC(9,2)
SELECT @Sum = SUM(I_LS.lmenge)
FROM dbo.lfs AS I_L
[CODE]...
Now here is my problem! I want to have a form with a datagridview that displays all of the values I am querying. This shouldn't be a problem I guess. However, I have no idea how I can integrate two textboxes that can be used to enter the selection criteria (WHERE I_L.lfsnr LIKE '%1253') AND (l.sped_journal = '11-08')[/SIZE]. I have googled and read many threads so far but didn't stumble upon anything that would suit my needs and answer my question. Maybe it's just too elementary!? By the way, it is very important that the input of textbox1 ((WHERE I_L.lfsnr LIKE '%1253')) is linked to 3 positions in my SQL query to define the search criteria!
The worst thing is that I don't want to have a bindingnav displayed! I do not need any delete, update or add functions just the select option, however!
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Sep 27, 2010
Inside a form, I would like to display a pdf file which is already available in my resources (template file "untitled"). In this pdf file, I have some fields which get their values from some texboxes in another form. My aim is, when the user triggers the button to call this form, it should insert the values inside the pdf file and display the output pdf inside the form.I have written the code to an extend but could not finish it myself after my many trials... Now here are the two things I cannot manage:I can use a directory to read the template pdf "untitled1.pdf". But my aim is to use the file inside my resources. can save the output file in a directory but this is not I want to do. I want to display the output pdf.
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Nov 30, 2009
How can I update and get values in a Windows Forms application while moving one form to other form (like cookies)?
I need to update the values to some variable and again I am going to refer stored values and need to do some calculations.
I have used cookies in ASP.NET but I am not able to find out the same concept in .NET Windows Forms (C#).
How can these issues be resolves?
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Dec 15, 2009
if i have an integer a_variable = 1.1 how do i round it up to 2?
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Sep 12, 2011
I have very basic question, I'm really not familiar with vb.net.
I have code like this: Dim minutes As Integer = (55 / 60)
I want this to return 0 to me, integer 0 (no decimals), but vb.net rounds this to 1.
Can someone hint me up how to accomplish this ?
edit. OK for those with same problem try dividing with (Yeah, it's not escape character in vb.net)
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Mar 29, 2012
How can I round 4.39 to 5 in VB.NET? I tried:
Math.Round(4.39, 0)
But it displays 4.
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Jun 9, 2011
i'm new to this forum and my doubt is i'm having three text box and say for eg.textbox1.text,textbox2.text,textbox3.text. and we are giving 4.52 and 8.76 as input in textbox 1 and 2 respectively the actual output we obtain is 39.5952, but i should get it as 39.59(only two digits after decimal point and no rounding) in textbox3
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Feb 23, 2009
How can I round a percentage off to the nearest whole number? [code]
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Mar 23, 2012
I need code that would take the input from textbox "Txtkbb" and divide it in half then round to the nearest 25 and store it in value "KbbValue"
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Feb 15, 2012
I have a number like 6511 and I want to round it up to 7000. How do I tell the computer to round the numbers to the thousands place. I know how to round decimals but not whole numbers.
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May 19, 2010
what is the syntax to round up a decimal leaving 2 digits after the decimal point,
ex: 2.566666 -> 2.57
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Feb 20, 2012
I have a custom form that I use instead of msgbox for a number of reasons. The initial reason was to keep the message centered on it's parent rather than the screen. There are many articles about this but I still have not found an elegant way to get access to the Parent's properties from inside the Child without passing them in (by one way or another).
In the child form the me.parent, me.parentform are not instantiated and apparently can not be used.
The point is to have this form be totally encapsulated with the logic being self contained. This is not an MDI child, and I do not want it to be due to the limitations on MDI children.
My current workaround looks like this I use a ShowMsg Function in my MyMsgBox form which looks like this:
[Code]....
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Nov 15, 2011
how to load the combo box'values from one form to another form's combobox
Example:
form1:
cust(table name)
no(textbox)
[code]....
now i load the form1's name which is the combo values .. to form 2's combo box whixh is name of 'CName'
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Aug 11, 2011
I am trying to pass information to parent form from modal form in vb.net winforms application.
1.) I created a copy of a form and displayed it using following code.
dim f=new frmParent()
f.show()
2.) Depending on conditions a button on frmParent opens a modal child form and asks for some informations. I used following code for that:
dim f = new ChildForm()
f.showDialog()
Both code works fine. When user press saves in child form i need to close childForm and use the user types values in parent form. I know how to close the childform but not sure how to pass info from childform to parent form.
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Jul 8, 2009
Lets say my number in text box is 0.376 (3 numbers after decimal) how to round it in a same text box to 0.38 (2 numbers after decimal). Basically any number to x.xx form . Can I have a code for that please
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Apr 20, 2011
how to avoid rounding off numbers
Code below
Dim acc = 0
Dim i
Dim x() = {699.68, 632.70}
[Code].....
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