I'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]...
[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 RepliesWhen setting the Page properties with the PageSetupDialog there was a "Printer..." button in the lower right corner to set the Printer setting also. But in the same app under win7 the button is gone.
I've set:
PageSetupDialog1.AllowPrinter = True
but to no avail. Also tried with Admin rights...nothing
I have a form that has around 4 txtboxes. Data is inserted into these boxes and then a "Save" Button is pressed. I have a GridView added to my form and want to view the entries. The issue I am having is that when I click the save button the data doesn't show up in the DataGridView until I close the application and then re open it.
[Code]....
Why images of asp.net toggle button created with checkbox doesn't show inside updatepanel in webusercontrol ?
View 1 RepliesI am writing a program that finds the net pay of an employee.
The label I want the net pay to go into is lblPay
I also use lblPay.Text = decNetPay
It doesn't show up when I click the "Calculate" button. What does show up is $000.00
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 RepliesHow 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 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 making this program for a school assignment but it has errors when calculating
Private Sub frmReceipt_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
'When this form is loaded, assign the date to the date label & start the timer
lblDate.Text = Date.Now
[CODE]...
So if counter finishes, execute the following code
If counter > 4 And km >= 1 And kmcashset = 0 Then 'If there is still kms to calculate 'And kmcashset = 0
kmcashholder = kmcash
km = km / 5
[CODE]...
And if I add counter = 0 and km = 0 at the end of that "If counter > 4 And km >= 1 And kmcashset = 0" Then it doesn't calculate anything correctly. I supply it with 9 for Distance and it returns 4 for excessdistance which is correct but returns 7 for excessdistancecharge when it should be 4! When I supply 23 for Distance it returns 18 for excessdistance and 11 for excess distance charge which is correct. (???)
Excessweightcharge calculates correctly.
I think it may be the way I'm implementing it, through the use of AND or maybe it's because it's in timer tick?
-Minimum charge of $5 which covers 10 kgs for the first 5 kms only
-Each kg over 10 kgs incurs a charge of $0.50
-Distances over 5 kms incur an additional charge of $1 per km up to 10 kms
-For deliveries over 10 kms, the extra distance should be rounded up to the nearest 5 kms and charged at $2 for each extra 5 km block.
EXAMPLE 1:
Packet weighing 9kms travelling 9 kms
Standard charge for first 5 kms ($5.00)
Weight less than 10 kgs so no extra weight charge
Extra distance charge 9 - 5 kms = 4kms x $1 = ($4)
Total delivery charge = $5 plus $4 = $9
[But my program returns 7 for excess distance charge]
EXAMPLE 2:
Packet weighing 33kgs travelling 23 kms
Standard charge for the first 5 kms ($5)
Excess weight 33 - 10 kgs = 23kgs x $0.50 ($11.50)
Extra distance (23 - 5kms = 18kms):
18kms ( 5 to 10 kms at $1/km) = ($5)
13kms (18-5)/5 = 3 (rounded up) x $2.00 = ($6)
$5 + $6 = $11
Total delivery charge = $5 plus $11.50 plus $11 = $27.50
[My program calculates everything correctly]
I have radio buttons which are used for computation of discount percentage of the textbox value. The problem is that the discount subtracted stacks whenever I choose radio buttons simultaneously. What I want is that my radio button to work like a checkbox. I need the txtPrice to return to its original value when another radio button was selected then subtract the value of the preceding radio button. Pardon me sirs because I'm still a newbie in VB.net.[code]
View 2 RepliesI have created a small game where you need to add value to be able to play. This all works fine and after every game a certain value is deducted.This all works fine but the extra credit is only added after you play again.Is there a command so I can execute a calculation (of the remaining value + the game winnings) ?
View 4 RepliesI am using the Math.Exp function in a calculation, and the result essentially is Infinity / 1 + Infinity, which is 1 statistically, but it is showing as "NaN" (not a number). Is there a way to calculate/show the result of this as 1 (besides just testing for NaN and explicitly setting it as 1?) [code] X is a number larger than 709.782712893 in order to get the NaN result.
View 18 RepliesI don't know how to make button1 call the combo box Items to do a conversion calculation for the following:
From To Conversion
Miles Kilometers 1 mile = 1.6093 kilometers
Kilometers Miles 1 kilometer = 0.6214 miles
Feet Meters 1 foot = 0.3048 meters
Meters Feet 1 meter = 3.2808 feet
Inches Centimeters 1 inch = 2.54 centimeters
Centimeters Inches 1 centimeter = 0.3937 inches
Attached is the Form that I am working oo
Public Class Form1
Private Sub ComboBox1_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ComboBox1.SelectedIndexChanged
ComboBox1.Items.Add("Miles to Kilometers")
ComboBox1.Items.Add("Kilometers to Miles")
ComboBox1.Items.Add("Feet to Meters")
[Code] .....
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 RepliesCan anyone help me to make a program which include a Button shows the current Month and the year and when clicking the button it shows a DialogBox ith a MonthCalender (this one I have done - the Monthcalender shown on a Dialogbox).Further I want to change the month shown as a Text of the Button when I click other Buttons to make the calender to go backwards or forwards,
Another thing I want to know is how to make the TreeView which expand / reveal another line or something on clicking the "Plus".I am learning only VB 2005 / VB 2008, please give the codes etc for VB 2005 only.
BTW, Can you tell me how to paste a picture in this writing place? I tried to paste the picture to shoow what exactly I want to do, but I couldn't do it.
The 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
[code]....
I'm working on this application, and I was doing the error checking on it, and I can't get the message box to show.
[Code]...
I am working on bit more advanced calculator, but I cant figure out how I can make my program to calculate textbox1.text and show the answer in textbox2
For example: (textbox1) 5*62+4
(textbox2)314
I'm not sure this question belong in this topic, but I don't know where else it should be?
I need to store a calculation to use later and obtain a new calculation
[Code]...
I have made some changes in my code but when i do debug it doesn't show the changes.For example: In my code i create a simple text file in "C" drive.I have change the path to the desktop and when i do debug it still create it in the "C" drive.
View 6 RepliesI'm trying to put data in my listview but the data doesn't show in my listview.
When i put this code in my form i dont have any problem but when i put this inside the module the data doesn't show up.
Code:
Public Sub getEmployee(ByVal myConnString As String)
Dim mySelectQuery As String = "SELECT names FROM employee ORDER BY ID ASC"
Dim myConnection As New MySqlConnection(myConnString)
[Code].....
First problem im having is that My image gets grabbed from the website but then it doesnt automatically load i have to click the PictureBox[code]...
View 5 RepliesWhen I show a file dialog and have All Files (*.*) selected files are not showing.The directories display How do I display files?
OpenFileDialog1.ShowDialog()
tbFileToLoad.Text = OpenFileDialog1.FileName.ToString
The string itself contains things like "random" & random.next(1,3) & "random2" etc. The string registers all of this as a string and doesn't actually calculate random numbers.Is there any way to fix this?
View 8 RepliesI have a collection similar to:
Public Class MyCollection
Inherits ObservableCollection(Of MyCollection)
Private _Name As String
[code]....
EDIT: I know that I can use DebuggerDisplay, but unfortunately it is very limited. The class in reality is quite complex and I need to have the possibility to define a logic in what I show during debugging, if possible.
How do you make the image in a picturebox vanish when you change an option? I have tried a few different ways that i have seen but none have worked. I have it set so when i change an option in a listbox it will change the picture and data in other controls, however one option in the listbox has no data to fill in those controls and so gets left blank. However when i click on that option right now the images that were in the picturebox before get left behind until i click on another option that has a picture. So how do i remove the picture from the box?
View 4 Replieswhy my crystal report dosesnt show any of my data.
View 2 RepliesI'm using a DataGridView that gets its data from table in Microsoft Access, one of the fields is a Short Time type record (e.g 16:00) but when the DataGridView is loaded it shows the record as "16:00 12/31/1899" and never shows only the ShortTime.
View 1 RepliesI have two tables in my database: Table1: Table1ID [Primary Key, Auto Number] Name Surname Table2: Table2ID [Primary Key] BirthDate HireDate I have created a one-to-one relationship between these two tables [Table1ID <==> Table2ID]. When I create a dataset using these tables, designer doesn't show one-to-one relationship lines? It shows one-to-many relationship lines. Is this normal? Is it always shows every relationship type like that or my one-to-one relationship wrong? I'm using VB.NET 2008 Express, SQL Server 2008 Express .
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