"Enter Numbers" Button Is Clicked, The Application Displays An Input Box?
Dec 19, 2009
I gotta finish this application. When the "Enter Numbers" button is clicked, the application displays an input box for the user to insert an integer. After the number has been typed and the OK button is clicked, the application is supposed to give out the sum of all integers from 1 to the value entered by the user. Example: If the value entered is 5, the sum will be 15; if it's 10 it'll be 55 This is my code but something's obviously wrong, it is maybe in the loop?
[code]...
The result I get for 5 is 25, and for 10 is 100!Also, could you tell me how to display the result in a message box?
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Mar 18, 2011
I have a program that allows a user to input numbers from an inputbox and it displays the Total numbers entered, the sum of the numbers entered, and the average of the numbers entered. What I can not seem to find it how to have it display the largest number entered. The code I have so far is,
[Code]...
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Feb 10, 2010
I have a listbox with numbers from 1-10..i have searched it up but i cannot find how to do..how can i randomize the order of the numbers in the listbox when a button is clicked? (each number must and only occur once)
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Jun 22, 2010
how to do array of textboxes when a user input a number of textbox to be loaded and when the button clicked, the array of textbox that the user enters will appear?
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Oct 4, 2011
I am making a program, where the user enters 6 numbers in 6 different text boxes, and it displays the larger of those 6 numbers. But I also want to make it where if the user enters a string value (like S for instance) in the text boxes, it gives an message and says "please enter the numbers again" and the user gets to enter the 6 numbers again. But when I do try to do that, it gives an error message saying conversion from "w/e the user entered" to Double is not valid. If the user just enters the numbers, it works fine. However, I am trying to make it if the user does enter non numeric value, it gives a message window and the user can reenter the numbers again.
Here is my code Example
CODE:
This is where I am trying to use IsNumeric to show a message if a user does not enter a string so the user can renter the numbers again, but when the user does enter a string value (say in textbox 1) it gives me an error message saying conversion from "S" to 'double' is not valid.
CODE:
Then right here this is where I have my series of ifs statements, this part works fine, it displays the largest numbers of the 6 textboxes every time. Error free.
CODE:
And do this with variable number 2, 3, 4, 5.
I know there are easier ways to do these with arrays and stuff. But I am not there yet. I am still learning about ifs and stuff.
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Nov 24, 2010
I'm trying to catch up on my school work and for my evaluation I need to make an application where you input 2 numbers. We will call them x and y.
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Sep 2, 2011
I have a backup script i made in VB. part of the code im having trouble with:
HTML
code:
Now this code is executed when a button is clicked, if the folder does exists, it displays a message and continues the backup. however if it does not it displays displays "does not exist box" then i want the application to close.
I played around with the application.exit commands but it seems like the code just skips over it, and continues to try and backup the data, then errors out. how do i make the application close, if the dir does not exist?
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Dec 6, 2009
I am writing a program for a class on visual basic and i have a listbox that displays 15 random numbers using an array. Then there are 2 buttons(max and min) that when clicked displays the largest number in the list and the smallest. how do i get these buttons to do this?
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Feb 2, 2011
I have to create program that adds the whole numbers from 1 to 1000 and displays the sum in the label. Create a variation of this program that allows the user to specify any starting whole number and any ending whole number (10,000 or lower) and then adds all the whole numbers in that range. Allow for the possibility that a user may start with a high number and end with a low number. Format the label so that commas are displayed and there are no decimal places showing. I need help with the codes.
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Jun 24, 2012
Basically. I enter a name and a score. And my program will store them in an array. Then i press "grades" and it provides me with a grade for each name and score entered.BUTi now need an array that will give me a count of how many numbers are in the array.e.g.
1 | James | 56 | Pass
2 | Bob | 98 | High Distinction
..
[code].....
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Apr 4, 2012
i have one more issues, and hope is the last for now. How can I limit a textboxe's input to only numerical with certain range of values (eg -10 to 10) and with that happening while I type in the values?
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Oct 30, 2010
Using 2 forms how would I click one button, from another form? ie In VB 4,5,6, I would used to do it as:-
Form 1:
private sub Command1_Click()
msgbox "Say Hello"
End Sub[code].....
If I clicked the button in form2, it would automaticlly, click the button in form1. Do I, do it the same way in VB Express or has it changed?
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Aug 17, 2010
I want to create one help file for my whole application. and once user press help button next to any input control then appropriate help topic from file should get display. how can i create this functionality in vb.net?
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Jul 27, 2011
i developed an application which takes input from drop down list and then creates files when we click on that button for specified value in dropdownlist.And if we click on send button it sends to remote database.All the application is working fine. Can any one suggest me how to run this application without user interaction.I dont have any idea about task scheduler, people said it can be done with task scheduler.
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Mar 15, 2011
I'm trying to make an application where when the user clicks a button, it generates a series of 100 random numbers between 1 and 1000, and then saves those numbers in a text file. All I could come up with is generating ONE random number, but I can't figure out how to make it 100. Here is what I have:
[Code]...
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Apr 1, 2010
iam currently working on my uni project and i have encountered a problem with valadation section.My system displays a message telling the user to input any fields that they have missed out on, listing the name of the field. However as these IF functions are in order the user must input the data in the order of how it is in the code. for example if the "consweight" is inputed and the calculate button is pressed, it thinks that all valadation above it has occured, when those fields are still empty.
[code]...
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Jun 13, 2011
i m trying to write a program that displays in a textbox a table of the binary, octal, and hexadecimal equivalents of the decimal numbers in range 1-222.
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Jan 10, 2012
How to let textbox1 only enter positive whole numbers and positive decimal numbers
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Jul 6, 2010
I have numerous buttons on a form, one each to select a playing card (52 buttons). When the Card(button) is selected I want to highlight it by changing the border from black to Red, then if reclicked from change back from red to black, easy enough (if then else). So that I do not have to copy this code 52 times I wanted to create a module as follows:
Sub ChangeButtonBorderColor(ByRef ButtonName)
If (Equals(ButtonName.BorderBrush, Brushes.Red)) Then
ButtonName.BorderBrush = Brushes.Black
[code]....
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May 14, 2010
How to make a link button visible after another button has been clicked in asp.net(vb) in button_click()
it says error as "Object reference not set to an instance of an object."
i've done this in my code
Protected Sub InsertButton_Click(ByVal sender As Object, ByVal e As System.EventArgs)
Dim receipt As LinkButton = FormView1.FindControl("LinkButton1")
' receipt.Enabled = "true"
[Code].....
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Sep 5, 2009
I have already done the creation of button and the dragging of button at runtime already.But now i need to know how do i save the last dragged button on the form and also detect the name of the last clicked button.so lets say i now drag a button to coordinates 25,254. so when i exit the form and the next time i launch it, the button will still be at 25,254. and this one will go on for the number of button i created like 100. so when i launch the form the 100 button will be at the exact position where i last saved them.the second part is lets say i created button1 and button2 on the form in runtime. so when i clicked the first button, it should display button1. and if i clicked on button 2, it should say button2. same goes for like 100buttons.
[code]...
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Jun 20, 2012
i am in need of some help getting my code working correctly like i am needing it to. Below is my code that when the user click on the textbox, it pops up a keyboard where they can click on any letter and it will type that letter into the textbox. Problem being is i can not seem to get the name of the text box to return so that it knows where to send the letters to.
[Code]...
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May 23, 2009
How do i make it so that you can only type in numbers and letters in a textbox? I want to disable the use of ("*(&$.....etc.) those types of symbols.
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Nov 15, 2011
I have to create a form that I enter the price of gas each month over a year. I enter the price in a text box and click the enter button to send the price to a list box immediatley and use an array. I have the following code but I don't think it's working with the array correctly as it will let me enter the information but doesn't stop letting me enter after the 12 prices. I am really having a hard time trying to figure out how to set up this input for an array and make it all work.
[Code]...
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May 12, 2012
I want to when you press the start button or stop that it displays a message output to the textbox 1
here is code from another member
HTML
Private Sub OnCheckedChanged(ByVal sender As Object, ByVal e As EventArgs) Handles togglecheckbox.CheckedChanged
Dim cb As CheckBox = CType(sender, CheckBox)
[Code]...
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Aug 5, 2010
How can I prevent the user to enter characters but only numbers and '.' in a textbox in vb.net 2005?
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Apr 25, 2009
ok im having trouble with my imput box it crashes when i enter text, nothin and when i press the cancel button. i do realise when i click the cancel buttin it returns a null value and vb doesnt like it but why does it crash with letters or typing nothin because i have put if it = "" then.... shouldnt that mean it will accept nothin entered? heres one of the input boxes maybe u can tell what im doin wrong and how to fix it.
[Code]...
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Nov 5, 2009
5. Create a program which will allow the user enter ten numbers. The program is to count how many numbers were above 50?
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Jun 28, 2009
I want to specify the user to enter only the numbers and decimal point in the text box.[code]values something like that which contain only numbers and dot.This is the code to enter the numbers only.[code]How to make the code to accept dot also?
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Jun 12, 2009
here is the code
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
SendKeys.Send(TextBox1.Text)
SendKeys.Send("( )")
[code]....
As you may see it is a "flooder", and i am just playing around with the program, evrything worked, until i did want to try it on msn, and i have to use the "enter" or "return" button. to send the text.insted of "pressing" the enter button and send it, it just writes the number 43? it is this line that i have problems with "SendKeys.Send(Keys.Enter)"
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