Is it possible to replace the calculate button with a statement so that the percent complete automatically calculates when a box is checked or the text box is modified?
I have not been able to find anything except a 'do loop' that even comes close.
Public Class Form1
Dim C1, C2, C3, C4, Tb, Tb1 As Decimal
Dim PctCmp As Decimal = C1 + C2 + C3 + C4 + Tb
[Code].....
I am trying to perform calculations on Regex substrings. I would like to do something like (see $2)
lblResult.Text = reg_exp.Replace(txtInput.Text, "$1" & "$2" * 0.039 & "$3" & "$4" & "$5")
I can only do this like:
For Each RxMatch In reg_exp.Matches(Me.txtInput.Text)
Me.lblResult.Text = Me.lblResult.Text & _
RxMatch.Groups.Item(1).ToString & _
Math.Round(CDbl(RxMatch.Groups.Item(2).ToString) * 0.03937, 4) & _
[code]....
My objective: to check the remaining btns in play and obtain the cash prizes in the remaining btns then calculate the average. It may seem simple but it actually isn't.
Here is what i have so far:
Private Sub btncase1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btncase1.Click
If usercase = 0 Then
usercase = btncase1.Text
[CODE]...
I am having difficulties getting a case to behave like I want it to. I have to calculate income tax using a case statement. For example if someone makes $7000 or less then they are charged a 10% tax of their input income, if they make $7000 to $30,000 it will bee 10% on $7000 and 15% on the remainder of input income and so on and so forth.determining how to set up a functioning case statement like this?
View 9 RepliesSee
Public Class Form1
Dim sql As String
Dim conn As New OleDb.OleDbConnection
Dim da As New OleDb.OleDbDataAdapter
[CODE]...
The problem, The INSERT statement works fine in the form load but not in the button click event?
I am creating a form that is able to update data in SQL server after selecting an MS Access file (.mdb). I am having an issue where the data has a single quote ('). I found out that the solution was to use Replace() - to replace the single quote with two single quotes - Replace(string, "'", "''").Now, for some reason, I am getting an error "Conversion from type DBNull to type String is not valid." Here is the code.
cmd = New SqlCommand("Update Child Set " & _
"TopLevelProject = '" & row("TopLevelProject") & "' ," & _
[code].....
I am wondering how to use the keyword replace in VB.NET SQL statement and I am using MS Access 2007 Replace(CallNumber, CHR(32), CHR(13)+CHR(10)) SQL statement I am using within my connection string is: SELECT title, callnumber, location FROM CARD_CATALOG
View 2 RepliesI am trying to do this(will explain below) :
If RichTextBox1.Text = "" Then
MsgBox("No text selected!", , "Warning!")
Else
[CODE]...
I created a button , i have a richtextbox , i want to do this : i will right something in the richtextbox , and when i will select what i wrote and click on the button it will replace it with <font color="">something</font>. but instead it rights next of what i selected .. any clues how to replace it and not right next to it ?
I have a calculate button that, if clicked more than once adds the total of what I previously had to the new total as I am using a loop. I was thinking that I could get around this by only allowing the button to be clicked once, and if the user attempts to do this more than once a messagebox will appear saying that you can only calculate the price once and the form resets but i can't seem to get any code working.
View 4 RepliesPublic Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
End Sub
Private Sub calculatebutton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles calculatebutton.Click
Me.Lblamountbalance.Text = Val(Me.txtowed) - Val(Me.txtpaid)
[code]....
In my program I have the button "calculate" as the accept button, but I want it to switch to reset after it is pushed and go back to calculate.
View 8 RepliesThis is the code that I have so far, the program works, etc.. How to delete the "Calculate Total Due" button and write the code so that the total due changes when any of the three options is changed/selected.
Option Explicit On
Option Strict On
Option Infer Off
Public Class MainForm
Private Function CalcResidentialTotalDue(ByVal premiumChannels As Integer) As Decimal
[Code] .....
Option Strict On
Public Class Form1
Private Sub btnCalculate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCalculate.Click
'The btnCalculate click event accepts and displays up to 20 hours from the user and
[code].....
I am using Visual studio 2008, and I cannot get the listbox to generate the lists, nor can I get the calculate button to do work. I click it, nothing happens. BTW this is coded the way the instructor directed in the audio cast that was published for the class.
I have been given a project and i need to create a button to calculate N!. I've been trying to figure it out for a while now and I can't.
View 1 RepliesI'm writing this prgram for class, and everything seemd to be working right except for my calculate button. It doesn't show the Calculation. Here is my code:
Private Sub btnCalculate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCalculateTotalPay.Click
' declare variables
Dim hours As Double
[CODE]...
I am creating an application that takes two numbers (lower and upper) and determines the prime numbers
Public Class primeNumber
Private Sub calculatePrimesButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles calculatePrimesButton.Click
'declare variables
Dim number As Long
[Code] .....
Once I hit the calculate button nothing comes up. I've tried adding the first code inside the function with the remaining code but no result. Now I'm putting the first code in with the calculate prime button. I am guessing there's a sqrt method that needs to be applied but I am not sure if it should be part of the function or the main?
I am sure there is a better cleaner way to do this but again I am just starting to feel VB.Anyway, what I am trying to do is get the calculations to work in real time, the form loads with the default radio selection and when the user click the controls, the prices starts to change like add and subtracts.Using the button is also an issue since the increment on the check boxes goes up by one even when the user click on another radio button.[code]
View 14 RepliesAt my school i have to make a program and im almost done with it but everytime if i dont put any inputs on the program and press calculate it crashes. What should i write in the codes not to crash if all the inputs are empty.
View 7 RepliesI find it difficult to create my own code. Am creating a program that will be able to calculate the sum of two numbers and display the results on the screen, i manage to create a code of clear and close button but for calculate i cant.
View 3 RepliesI'm using Visual Basic Express 2010. I have the prompt, the textbox and the calculate button. For the answer do I have to make a separate label for the answer in seconds and the actual response "That will take (separate label for answer) seconds" I made a click event button and assigned the following as global variables at the start of the form:
Const intSpeed As Integer = 1207
Const intTime As Integer = 3600
Then I made a click event for the button. I don't know what the formula is. Basically the user inputs a distance in the box, the calculate button tells you how long it will take for the vehicle to travel that distance in seconds.
Here's the interface: [URL]
Criteria:
Are We There Yet?
The Thrust SSC, a super fast vehicle tracked at 1207 Km per hour (750 mph) was clocked on the Black Rock desert back in 1977. Build an application that will tell people how many seconds it would take to get to their destination if they were driving the vehicle. Of course this doesn't include having to stop for stop signs, travel through school zones, or slow down for corners.
You need to include the following:
1.) Design the application with a prompt label and textbox to collect the distance from the user.
2.) A calculate time button
3.) The form must have the text property changed to read "Are we there yet?"
4.) The objects must have both the Text property and Name property changed to an appropriate value.
5.) A constant global variable should be used to represent speed of the vehicle.
6.) A constant global variable should be used for seconds (there are 3600 seconds in an hour)
8.) A local Dim variable declaration can be used within the button click to hold the distance value.
7.) Variables should be declared with the most appropriate data types.
8.) Include a "Text Changed" event to reset the time in seconds to a blank value when the user starts entering in a new distance.
9.) Comment code should be included
I'm trying to convert input and display in a label using a calculate button click.I need to take the input from the textbox add it to data inside a label and display it in a label (output). The data has to be validated for no negative or non numeric data. [code]Nothing is being displayed in the output label and only getting label with error msg???
View 5 RepliesI want my calculate button to automatically click 4-5 times upon the user clicking it once because it seems that it only works properly if it is clicked multiple times...
View 10 RepliesI created button "Calculate Pay" and under this botton I created a label (lblOutput).How should I wirte in lblOutput label to display what happens after "Calculate Pay" button is being clicked?
View 3 RepliesI want to replace the text of my buttons using a loop and I dont know if it is even possible. So here is how it works I have multiple buttons with blank values in them. I also have a database that has a table in it. Now when my form loads i want the buttons to have a new value in them which will come from my table. And I want to do this process using a loop like the code below
[Code]...
I have an assignment that includes some extra credit point by making a calculate button take four numbers, add them together and give a commission. I know what I did works, but I just want to make sure I'm doing it right! Let me know if I did something wrong
[code]Private Sub calculateButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles calculateButton.Click
[Code]...
[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 am trying to write an if statement for a button something like:If Button1 Clicked then do thisIf Button1 notClicked then do thatI couldn't find anything. All code are for radio button of check boxes.
View 6 RepliesI want to make an if statement inside a button. So basically its this Private sub Button1_Click ....
If Button2.click then
blah blah blah
else if button3.click then
'blah blah blah
End If.
How would I do this because I can't seem to solve it with any code of mine, i searced through all the allowed values that vb offers and nothing ...
I need to perform a calculation based on the idea that the user will select the operation, which is in this label lblOperation. The two numbers, num1 and num2, come from lblNum1 and lblNum 2, which are randomly generated. How can I change the statement to say lblCorrect.Text = the value of num1 and num2 where the operation performed is whatever operation the user chooses from lblOperation.Text? This is what I have so far:
'btnSubmit instructions
Private Sub btnSubmit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSubmit.Click
[Code]....
Instead of always adding the num1 and num2 I want the operation to be between the two numbers and the answer to be printed in lblCorrect.
Im writing an if then statement and i want it to say something like this:
If intx = 1 and btn.click = true then
'the rest of code
end if
But obviously "btn.click" isnt a real command.