I have 5 textboxes named as txt1, txt2, txt3, txt4, txt4. Only numbers are allowed in these fields. I have another textbox named txtSubTotal which is calculated (SUM) from the values entered in the above five textboxes. What is the best way to calculate totals when numbers are entered or modified in any of the five textboxes?
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How do I add 2 text boxes together textbox one = $20 and textbox two = $40 and text box 3 adds both textboxes together to display = $60?
View 3 RepliesI 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.
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what i am trying to do is i have two textboxs which have figues in them and need the 3rd textbox to display the figure the code i am using doesnt seem to be doing anything could anyone spot it and tell me why it is not working for me
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how to calculate "InvTotalTextBox" and "InvDiscountTextBox" values then show the result in "InvNetTextBox"..?
how can i do..?
three TextBoxes in a form
InvTotalTextBox, InvDiscountTextBox and InvNetTextBox
InvTotalTextBox is Binding with Table Field "InvTotal"
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I use this code to save some TextBox values to XML, but when I try to save some more, it overwrite the first one. What am I supposed to do in order to save more contacts?
Imports System
Imports System.Xml
Private Sub ProsthikiBTN3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ProsthikiBTN3.Click
Dim settings As New XmlWriterSettings()
settings.Indent = True
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I have a textbox called textbox1. I wanted to limit it to only two characters, so I added the code TextBox1.MaxLength() = 2, however this textbox is for user input and only want to allow numeral values 0-99. And if the user entered a non-numerical value an exception would occur so I need help on to handle that.
View 2 RepliesSo far I have code for a textbox that limits the value entered by a user to two value places. However, I would like to limit the value entered by a user to numerical values only. And to handle any exceptions that go along with it.
View 2 RepliesI have a textbox called textbox1. I wanted to limit it to only two characters, so I added the code TextBox1.MaxLength() = 2, however this textbox is for user input and only want to allow numeral values 0-99. And if the user entered a non-numerical value an exception would occur
View 3 RepliesIn my form I have a text box for user to enter the number of column and row. And I also have a text box to enter the first X value and Y value. Now what I want to do is if user enter 2 for row and 10 for column then now I will have two rows with 10 column. The X value is for column and Y value is for row.
It will look like this
**********
**********
When the user enter the first X and Y value. For next X and Y value i must plus the original value with 2.54.
So my X1=TextBox1.Text
Y1=TextBox2.text
this values are input by user.
So
X2=TextBox1.text + 2.54
X3=X2 + 2.54.
and so onn. Same apply for Y
Let say user input are X=100 and Y=100
The value for first * is X= 100 and Y=100
Second *X=102.54 and Y= 100............. and so on
For 11th * X=10th *value + 2.54 Y= 100+2.54 and so on
The row and column is not same always it depends on user..
I'm working on a program that calculates inputed number of hours * hourly rate (12.00). I am not sure how to show the result in my amount due text box.[code]...
View 3 RepliesI want to enumerate all of the values within a given registry subkey (for example 'HKLMSoftwareMicrosoftWindowsCurrentVersionRun')
View 4 RepliesI have a text box in a program and it is working as I want/need it to with 1 exception... Is there a way to make it output on? I do not want it accessible to users to put information into it - it is for displaying info from an internal calculation not for input from user. If this is possible, what do I need to do to do it?
View 14 RepliesProtected Sub Button4_Click1(ByVal sender As Object, ByVal e As System.EventArgs)
Dim total_rental_chargeTextBox As TextBox = FormView1.FindControl("total_rental_chargeTextBox")
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I trying to draw a bar chart based on the five values getting from the user via textbox...When i run this program no error is occured, but the chat is drawn...Can anyone please help me out in this regard.
here is the code i have so far
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I've a got a homework assignment that chooses one of four values in a list box, stores it in a text file. Secondly, on the display click event it should access the text file, read the line, store it in a variable and then display the totals in a text box. Works sort of fine except that it doesn't display the totals correctly. Code for both buttons is below. The variable are assigned in the mainform (Tried also in the display button and didn't change anything). The save button works fine and stores fine in the text file, it's just the reading that's the problem.
Private Sub saveButton_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles saveButton.Click
'save the new vote choices to a file
Dim votes As IO.StreamWriter
votes = IO.File.AppendText("votes.txt")
Dim voteSelected As String = CStr(commercialListBox.SelectedIndex)
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How to make auto calculation in textbox without press the button? Example i have Textbox1 + Textbox2 = Textbox3...in the textbox3 it will auto calculate the value...
View 3 Repliesi need to take data input from a textbox such as this
13:41 A spider loses 20 hitpoints due to your attack.
13:41 You gained 18 experience points.
13:41 Loot of a spider: 2 gold coins, meat
13:41 A wolf loses 25 hitpoints due to your attack.
13:41 You gained 27 experience points.
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I need to store a calculation to use later and obtain a new calculation
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I am trying to speed this calculation up because I need it to run every time a textbox or a checkbox is changed within the program. My issue is that it runs so slow that there is a lag between changing the text or checking a checkbox and the actual completed calculation.
Sub CalculateP1LoanAmount()
On Error Resume Next
'create the variables for the calculations
Dim P11stPV As Integer = 0
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I was thinking of using a datagrid for calculation. Lets say I want to order several items from a supplier. I just fill up the details row by row, insert the quantity and the price for each. For each row, there will be a subtotal (multiplying quantity by price) and the end it should give the total. Can we achieve using data grid or is there another way to proceed?
View 2 RepliesThe idea with this form is to add the futures which is calculated when the button is pushed but I need the list to update every time and show the values each time to which the previous value is added to the new calculation, e.g. of what it should look like in listbox:
Year 1: $1,290.93
Year 2: $2,724.32
Year 3: $4,350.76
etc....
I have been working on this a while and I am at a standstill, I was given a function to clear the form everytime it calculates but I don't know how to implement it, I am new to VB. Here is what I have so far:
Public Class frmFutureValue
Private Sub btnCalculate_Click(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles btnCalculate.Click
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I am writing a pizza order program for class and have gotten everything put together, even got my array setup and displaying but when i go to calculate it will not calculate the values coming from the array in any of the calculations.
[highlight="vb"]Option Strict On Public Class Form1 'declare structure and module-level variables Structure PizzaSale Dim SizaString As String Dim StyleString As Stri]
I am a newby with VS and I am busy creating a golf scoring program. I am struggling with calculating the actual handicaps. I know the formula to do the calculation. I just do not know how to implement it in VS. I have a access database that has all the info. I have score, golfers and golf courses tables. I am trying to use my scores table to do this.The columns I will be using is Golfers, Score, differentials an Handicap to do my calculation.
I need to be able to use the last 20 scores input for each golfer and out of those I need to use the best 10 scores out of the 20 for each golfer. The formula is as follows if done manually : get the average of best 10 scores and multiply it by 0.96, the result is your handicap rounded to no decimal. Do I do this in access with queries or in VS?
I am making a quote calculation program with Visual Basic. Per quote there can be multiple parts/products.
What I want now:
1) insert productinformation (dimensions, quantity etc.) in one form
2) write this data into a table or something
The program then needs to calculate prices etc. but first it is important to get the data right for the calculation.
What I am thinking of myself is putting the data into textboxes and then let this data be transported to a table and have one product per line in that table. from this it can be calculated
I have a program that I wrote in vb 2010 that keeps track of employee times in a database. It figures hours worked based on a range of dates selected using two DateTimePickers.I have it successfully working at this point to figure hours worked per day in the range for it's current practical use. But I was wanting to extend it so that it would handle over night shifts properly in case they did ever occur.Right now my code looks like this and it works for my current application:
vb
Public Sub ConvertTimesTableToHoursTable(ByVal timesTable As DataTable, ByVal hoursTable As DataTable)
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For some reason my code is a little buggy, and i really would like a speed calculator with my program.
'Download progress bar kode
Private Sub WC_DownloadProgressChanged(ByVal sender As Object, ByVal e As DownloadProgressChangedEventArgs) Handles WC.DownloadProgressChanged
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I have DataTable, and is bound to DataGridView. So, when the user inputs some values in 4 columns, it would calculate the sum and put it in the last 2nd last column.
Here's the code that I'm experimenting:
vb.net
Private Sub DataGridView1_RowLeave(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles DataGridView1.RowLeave
Dim i As Integer
Dim intTotal As Integer = 0
For i = 5 To DataGridView1.Columns.Count - 3
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So, basically it should sum up certain columns when the user enters numbers into it and then display it in the last column.
[code] Everytime i press the Calculate Button, it crashes on my first calculation part. What im trying to do is to not crash the program eventhough i have no input in it.
View 1 RepliesI'm using a pattern of buttons verticle, & horizonal, to produce a 2 dimensional matrix (6 deep, 25 wide .) The sequence is repeating, but offset from horizonal line to line. the values are 1 thru 12. there are corresponding files in the "My.resources." file carrying names related to the buttons. If the "my. Resources" filename is say.., "1,3,4,6,8,9,11,12 " & the buttons pushed have produduced the string "1","4","6" then the prestated file carries all these values, and therefore should be selected. All integers of the textbox list must be present in a "my.resources" file to show the file. There will be multiple files in the resource file that will fit. (My ultimate intention is to show all files that fit, somehow. I'll have to, eventually. I'm still writing this, and changing it constantly. )the question is, "How do I get the computer to link the textbox integers to the resources files? Textbox = "1", "4", "6" to My.Resources.1,3,4,6,8,9,11,12
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