Application Displaying Sum Of All Integers Entered By User
Jun 21, 2010
I Create an application that when a user enters a positive integer value in a input box(the default number is 10) when the OK button is clicked, the application should display a message box with the sum of all the integers form 1 through the value entered by the user. If the user enters a negative value, the application should display an error message. I believe I have to use a loop condition but I have no idea what to do.
EX: User enters 10 in the input box once OK button is pressed a message box pops up and says "The sum of the numbers 1 through 10 is 55". Use the following test data to determine if the application is calculating properly
VALUE SUM
5 15
10 55
20 210
100 5050
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Mar 20, 2010
I tried coding for an application that will display the positive integers, negative integers and zero entered in a inputBox. for some reason it keeps crashing down.here is my code. paging all visual basic professionals. [code]
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Jan 29, 2011
I'm trying to create a program that will let the user input any number in the first input box then a second input box will pop out asking the user for the time interval of that job. If the time interval is lesser it will come first to listbox3. The loop of how many times the user will ask depends on the inputted number of the user in textbox1
Example input and output.
3 loops.
Enter any number for job 1: 2
Enter time arrival for job 1: 8
Enter any number for job 2: 3
Enter time arrival for job 2: 4
Enter any number for job 3: 1
Enter time arrival for job 3: 6
Listbox1:
2
3
1
Listbox2:
8
4
6
Listbox3:
3
1
2
As you can see Listbox1 orders the number base on the first number that the user inputted in the first inputbox. Listbox2 orders the number base on the first number that the user inputted in the second inputbox. Listbox3 orders the number base on the time interval that the user inputted in 2nd inputbox, the lowest number must be the first in Listbox3. How can I use array to order the numbers?
Private Sub StartButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles StartButton.Click
Dim finish As Integer = TextBox1.Text
Dim A As Integer
[Code] ....
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Feb 2, 2012
Vb is not my language of choice , but I have to do this for school and I'm not having a very easy time with VB's documentation.I'm just creating a very simple console application that accepts user input: degrees in Celsius, and converts it into Fahrenheit. I want to make sure that if the user just hits enter without entering the degrees in Celsius, then an if else statement will catch and write to enter Celsius again.Here's what I've tried:
[Code]...
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Mar 2, 2012
i just write code for application, in which data is get by user and entered data is to print in a particular format?give me a code for vb.net button by which after click on it will print entered data?
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Sep 27, 2009
Im trying to create a textbox where you must enter a value from 15 to 95; and if you dont you get a messagebox stating that you must do. Heres my code:
Private Sub TextBox2_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox2.TextChanged
Dim number As Integer
number = CInt(Val(TextBox2.Text))
If number < 15 Or number > 95 Then
MessageBox.Show("You must enter a value between 15 and 95", "Name Entry Error", _
MessageBoxButtons.OK, MessageBoxIcon.Exclamation)
TextBox2.Focus()
TextBox2.Clear()
End If
End Sub
Whenever I type in one digit it automatically comes up with the messagebox. I know what its doing; its automatically reading the first number and not giving you time to properly enter anything.
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Jun 19, 2012
I'm having this weird problem with my windows application, I have fields for entering data into an underlying access database, my problem is after clicking the submit button upon entering the first data it shows neatly in the datagrid but subsequent data entered repeats what was initially entered into the datagrid.
Private Sub BtnSubmit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BtnSubmit.Click
'Sets Null Fields to 0
[Code].....
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Jan 6, 2012
Can i use the timer when the user tries to log-in and the user entered a wrong password 3 times.i will give the user 5 mins to log-in again with the correct password and if the user enters the wrong pass. 3 times again i will give another 10mins also this is what i want when the user close the program the timer is also their and running that it will give the user the remaining tym on how much tym left 4 him to log-in again.Can i do this in vb.net??i dont know how 2 do this i dont have a clue if it is possible can someone give me a code??
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Feb 9, 2011
How do you ask the user to enter in 3 different integers?
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Mar 23, 2009
using for...next loop the program is supposed to accept 2 user inputed integers and display all even numbers between the two in one label and all odd numbers between in another label.
Private Sub displayButton_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles displayButton.Click
' displays the odd and even numbers between two integers
Dim intNum1 As Integer
[code]....
I'm not exactly sure what this code is doing. When I put 1 in the first number and 10 in the second number, the odd label only shows 9 and the even label only shows 10. Another example is when I put 2 and 15, the odd label comes out as 15 and the even label is 14. I'm very new to VB and programming in general and have just started getting into for...next loops and don't fully understand what the counter is or how the loop is supposed to work. I guess I'm having 2 problems. One is that I don't know how to make the program find the right numbers(my logic is off? or how I set up the loop isn't right?) and the other is the labels are showing only 1 number each instead of all the numbers in between on their own line.
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Oct 12, 2010
I am trying to perform a task while the word count of a richtextbox is less than a user entered value, but the word count keeps coming out miles out, here is what I have:
Dim count As Integer = 0
RichTextBox1.Text = ""
Do While count < NumericUpDown1.Value
[code]....
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Apr 12, 2012
I'm working in visual studio 2005 and developing a windows form that has a datagridview on it.
One of the cells is a Calendar Column type (custom made). I pulled the code for it off the internet - it basically allows the user to select the date from a small calendar.
When the date is changed, it gets the correct value and it also saves into the database with the correct value.
The problem is that it doesn't load onto the grid with the correct value. In fact, no matter what date I enter in, it always displays it as 1 day earlier. e.g. If I saved it to the database as 4/19/2012, it displays it as 4/18/2012.
I verified that there's no other column in the query that retrieves the data for the grid that contains the value it's displaying.
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Dec 17, 2010
I have an EXE that creates objects based on params passed to it.Say I have textboxes named 57 and 21.I want to read the values entered by the end user.
Var1=57.text
Var2=21.text
How do I pull this data from the boxes?
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Apr 8, 2011
My project consists of a user interface designed in Visual Studio 2010 Express. I have it linked to an Access database. At this time, I have two text boxes that the user will enter a number. I want to be able to write a query that will take the first and second number and pull the information from the database that is equal to or greater than the user entered number
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Jun 10, 2009
I have a report that requires the user to enter their ticket number, then they click view, and it generates. Pretty standard. What I would like to do is have the report automatically export to a pdf when they click view. Does anyone know if this is possible and how I would approach the matter?
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Sep 3, 2009
How do i check if user has entered all inputs and go to the next form.
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
t1.Focus()
End Sub
[code]....
In this code it gives an error, but after displaying the error it jumps to next form.
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Jul 19, 2009
I have a datagridview and, I know I am a bit weird, but when believe it or not, when a user enters a new row I want to insert that row in the database. And even weirder, when a user changes a row in my datagridview I want to update (imagine that) the database.
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Feb 10, 2012
How do I prevent users from a inserting a duplicate value using SQL Query
datatype is VarChar(50)
e.g. the name field has already been defined as "Josh", I don't want it to be able to add another "Josh"
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Aug 20, 2011
Ok so I have designed a program to figure out commissions for phone sales at my company. Since the devices we sell and their associated prices change over time, I had to make that data within my program dynamic. I have a form within my program (frmprice) that has 160 textboxes - 80 for the devices and 80 for the associated prices. Now I hard coded the .text members with default values for our current stock of phones and prices.
I also added code so whenever that form with the phones and prices (frmprice) closes it saves any changes that have been made to either the phones or prices and when the form loads it overwrites the default data with any data that the user had entered at last run.
HERE is my logic problem. At the very first run the program is overwriting the default hard coded values with "" because no user data has ever been entered before. So when the form with the prices loads, it passes the user entered data from last run which is null because it has never run before. If I test to see if default value <> the user entered data before it executes the code to pass the user entered values it will always test to be true because the user entered data is null at first run. If I test to see if the default value is = to the user data it will always at first run test to be false because there is no user data yet.
HOWEVER once the user entered data is initialized (anytime after the first run) I need the program to pass the user data from the previous runs back in. Just NOT at the first run. Here is the code i am using: (in the code below the variables ending in "val" are the ones that are of the type string and are saved in the application settings) The frmprice_Load Event:
[Code]....
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May 24, 2010
I created a usercontrol which has a Textbox and a Label. Setting the (boolean) textvalidity property we can toggle the icons on the label to show if the user has entered a valid input.
Sub New()
' This call is required by the Windows Form Designer.
InitializeComponent()
[Code]......
The problem is... when the control is used... the constructor initializes it to true (According to my code) so the icon is already displayed.
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Jan 10, 2012
I've got a (hopefully) quick question. I've got textboxes attached to a binding source on one of my forms, and when I add, then clear, the data for the next entry to be added a small problem arises. If the user has previously entered something into, for example, Textbox3 and the user does not have the data for Textbox3 the user cannot move to the next field unless something is entered into the box.
[Code]...
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Mar 18, 2010
Does anyone know of a good way to have a user enter an amount of time (hours and minutes) using winforms controls? At the moment I have two numeric up downs, one for time and one for minutes that I then parse to create a timespan. The only other idea I have is a text box that a user can enter a "00:00" time in, and validate the input. Both of these ways seem a bit bad (in UI terms) though.
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Mar 31, 2009
When I run this application the 2% menu item works fine but the 5% does not. It does nothing at all. I'm stuck.
[Code]...
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Jun 23, 2011
I am trying to show message when user didn't enter any data in datagrid and click on save button it should display message please enter the required fields but I am using this code for this purpose.
For Each cell As DataGridViewCell In DataGridView1.Rows(DataGridView1.RowCount - 1).Cells
If cell.Value Is Nothing OrElse cell.Value.ToString = String.Empty Then
MessageBox.Show("Please Enter the Required Field(s)!", "ITPCHR", MessageBoxButtons.OK, MessageBoxIcon.Stop)
Exit Sub
[Code] .....
When I click on save button without entering data it give me message please enter the required fields but when I enter the data in datagrid it didn't save data and gives same message please enter the required fields.
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Nov 8, 2009
I'm trying to create an app to launch at start up that will ask you what applications you want launching, or if you want all your favorite app's to start up etc. But before I go any further, I think its crucial to know how to save settings that a user has entered (such as program location and name in this case) so that he/she doesn't have to enter them every time at start up.
So far I have just made this, can anyone tell me how I would get it to save the settings entered?
Code:
Option Explicit On
Module Module1
Dim name As String
[Code]......
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Aug 30, 2011
I have a question in relation to formatting text fro 24-hour time.
The format I require is always as follows 00:00
How can I make the ":" appear as soon as the second digit is entered as this is required to separate hours from minutes and also how can I force a 0 to appear for any numbers up to and including 9?
Examples being: 00, 01, 02, 03, 04, 05, 06, 07, 08, 09.
These zeros are required but may be forgotten by the user entering them into the textbox?
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Feb 22, 2010
I am trying to get my program to validate the hexadecimal range entered by the user, the range being between 00 - FF,
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May 23, 2011
I have created a small program that performs various calculations with data entered by the user. I need to be able to save the entered values and the results on the system running the program and be able to open it at anytime in the future and have the values and results displayed in the correct text boxes. I am currently reading up on some tutorials but I was just curious as to how I can send all my data in Visual Basic to my database in Microsoft Access?
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Nov 2, 2011
I am building a search engine in vb.net which would have to search for a word entered by the user in 40 text files within the project directory. It should return the results as the total number of matches (text files) and the number of times this word is in each file.
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Apr 10, 2010
I have already wrote my own Registration checking software in VB.NET, however I wanted a Special key that I could use in the Registration, and I want to get this from the user, so when they download my software I will with online feature send them a Serial Number, which they will enter when they install the software, I then want to write it to the Registry using the Setup and Deployment project, so that my application can retrieve it every time it is run to check Registration.
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