I am wanting to allow a user to enter a number and depending on what number is entered, it will allow that many entries. For example, if 5 is entered, the user has to enter 5 numbers. Those 5 numbers will then be added together.I 6 is entered, 6 total numbers will be added.I was trying to do this with a for next loop but I wasn't getting anywhere.
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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.
I have a MaskedTextbox which takes Us Phone numbers. Using The MaskedTextBox ensures the user can enter only numbers and the number gets formatted right.
Here is the problem I am having: How do I add an error message if the box is left empty? I am not trying to validate the number, just need a way to add: "You forgot to enter a number." Can I add this to a MaskedTextBox?
How do I add a message box or alert to a MaskTextbox if the user hit submit without entering numbers?
how I can get the LIKE statement to work if the user enters a number like 403* ? The sql works if I do not enter an *
strWildCardFound = InStr(TNSearchTextBox.Text,
"*")
TNSearchTextBox.Text = Replace(TNSearchTextBox.Text,
[Code].....
count the number of times when a user enters a character followed by , and I want to count , number of times. So far here is what I have if you also know a little about the split function can you check to see if what I have is right?
Private Sub Strat0_LostFocus()
Dim q1 As New rdoQuery
Dim LO As Integer
[code]....
I am using a vb windows application I need to allow a user to enter their ID num in a text box and it need to automatically populate their date of birth
View 6 RepliesMy homework assignment is to create a project where a user enters a password that must be at least 3 characters long with at least 1 number and 1 alphabet character. After that the password has to be encrypted so that vowels become X, numbers Z, and it reverses. For example, a password of CS2301 would be ZZZZSC. There's supposed to be Loops to extract 1 number/letter at a time and search for them in the string to validate, and I don't know what to do. The form itself has a Text Box to enter a password and a label to display the new one, and a Go button.
This is what my code looks like so far.
Option Strict On
Option Explicit On
Public Class Form1
[CODE]...
I am making a minor basket system which the user selects a number of products from a datagrid and it adds them to a basket using an array list (arrItemID).However on the ViewBasket form I want another datagrid however a query is formed listing the selected products. Though the datagrid seems to be empty (though the query when outputted to a text box is ideal. [code]
View 3 RepliesI have a login form that I made. The user enters a username in textbox1 and then enters a password in textbox2. The user then hits the submit button (button2) and from there it works beautifully. The problem is, I would also like the user to be able to hit the "enter" key after they fill out the password textbox (textbox2) and have it be like they pressed the submit button. When the user hits enter right now, the form hides.
View 4 RepliesI am trying to create a program that the user enters the number of enrollments for 5 different campuses during two semesters. I just got started and here is what I have so far but when I run the program it is stuck in an infinite loop and will not go to the next function. I am not sure how to end the loop.
Here is what I have so far:
Module Module1
Dim SIZE As Integer = 5
Dim campus() As String = {"Decatur Day", "Decatur Evening", "Huntsville Day", "Huntsville
[CODE]....
I need to create a program that rolls a dice a user generated number of times and give the frequencies of the numbers that come up.I cannot for the life of me figure out how to get the frequencies?
View 5 RepliesI'm playing with XML, DataGridView control, DataSet and DataTable. [code] the user can edit/add records via DataGridView control. So, when the user enters a string value where it is expected to give an integer value(first column and third column), it would give a big error message. Instead of showing that, I would like to apply custom validations.
View 3 RepliesI need to write a program that requests a high number and a low number from the user, then the program searches the array and finds all elements within the two numbers. The program is used to search for past presidents, so if I type 43 for low number and 44 for high number, the program will display:
George Walker Bush
Barack Hussein Obama
I think I have an idea of how to search up to a certain point, but not to stop at a certain point....Here is the code that I have for that particular sub procedure:
Quote:
Private Sub btnDisplayRqst_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnDisplayRqst.Click
Dim sr As IO.StreamReader = IO.File.OpenText("PRESIDENTS.TXT")
[CODE]...
I'm trying to fill out a webform where the user gets a image in a picturebox and then enters the requested text.But when i submit it to the forum nothing happens This is the code of the html page:
<input id="response_field" type="text" autocapitalize="off" autocorrect="off" name="response_field" autocomplete="off">
How could i add this: value="test" to the above line while the page is beging generated so its part of the webpage?
My
With WebBrowser1.Document.Forms("form")
.All("response_field").SetAttribute("value", "test")
End With
I am very new to visual basic and was recently asked to teach a course without any formal training. I am writing a program that adds the numbers between 2 inputed numbers. I need to display the sum of the numbers between the inputed numbers and the expression used to create the sum.For example: If 10 and 15 were inputed the answer label would display the following 10+11+12+13+14+15=75..The code is properly generating the sum but I can not figure out how to display the expression used to generate the sum. [code]
View 4 RepliesVS 2010 Adding whole numbers between a number and a number
View 3 RepliesI 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.
View 5 RepliesI was developing my own project in the university so what i am stack is to have save button which firstly validates what the user enters the form. for instance if the user skips the text fields, i wanted to restrict the user to fill all the form and when he completes, the save must be accomplished.
Here's the code i was trying to put but i was having problem saying the windows.forms.etc is unable to convert the save as Boolean and something like that.
Dim success As Boolean
Private Sub Save_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Save.Click
[CODE]...
Im working on writing a program for doing standard deviation and as of right now im running into one slight issue with subtracting my mean from the original numbers. I will post most of my code so you can get an over view but i mostly just want help on this one little part for now. Im going to be making a website for school and put some programming stuff on it so i wanted to make just some random programs for it so this is school related but not really homework. It's line 26 and 27 that this is relating to. When i put a stop in my code and look at the result of arrayDifferences it gives me 0.0 when it should be -1. I know i can go this route and say arrayDifferences(1) = arrayDifferences(1) - arrayAvg but seeing as how i want this to be a random number of numbers input by the user i cant do that.
CODE:
I'm new to VB and trying to convert numbers to a string then add the string together but VB keeps putting a space at the beginning of each number after i convert it to a string.
[Code]....
i need a simple way to get a random number from 2 numbers. This means that for example if my 2 numbers are 3 and 7, i don't need a random number between 3 and 7 that would be like 3,4,5,6,7 but only a random that is either 3 or 7. Meaning not all the numbers between x and y, but either x or y.
View 7 RepliesI'm relatively new to VB programming & My question was, how do you see the control source or rowsource of a text box so that you can make I display data. I have a case where I am trying to display sub-totals from an exce spreadsheet into a text-box on a User-form. And is it possible to make a selection in one listbox and have corresponding selection highlighted in another listbox?
View 1 Replieshow to take the value that a user enters into a textbox and add it to values entered into other forms by the same user. I want the values to all add together onto a new form in a label. Code for textbox:
[Code]...
I've been using KeyPress to help limit what the user enters into certain textboxes. e.g. here's my code for a Phone number. It only allows for numbers and dashes: [code]It's all working fine; however, the thing I hate about using it is that when ever have to do debugging of the screen, for each keypress into this textbox, it goes into debug.I'm wondering if it's possible to do something similar when the user clicks the save button. Has anyone done any type of validation like this?
View 6 RepliesI basically have a .avi file that speaks numbers (random number only). Want I want the program to do is:
1. Load up the .avi
2. Play the .avi and write down the numbers that are begin said.
3. Write them in a textbox / notepad
I am using vb.net 2010. I have a datagridview whose data source is a data table. I dynamically add rows to the data table.
[Code]...
After adding the new row, m_table is correct. However, DVGCusClient not only adds this row, but also adds two additional blank rows at the bottom. I have no idea where these two blank rows come from. Why I use above code is as follows: Use a data grid view to display data. When a user clicks a row, another form is opened which allows user to search/input some data.When the user closes the form, all data is saved to a data table and shown on the data grid view.
Well, I have a form called customers. Login form and mainform.
So my clients want to have an option that explains this: If a user enters information in the customer form, then that information has to be confirmed by admins panel.
Get me well. When application program loads with a limited user, I set some buttons hidden so that only admin can see it when they log in. so in that case, users are not capable of inserting anything in the customer form.
But this time they want users to insert information then the information goes to administrators to confirm the information...if admins accepts the information, then information is then goes to customers table in database. If they don't confirm it, then that information will be ignored.
am using vb.net 2008 with sql server database.
I have a listbox to display where user adds certain serials(let say A) to listbox or can remove serials from listbox. Now along with that serial "A" I want to store data like this "A,B,C" (from textbox) and pass it on the data to procedure but I don't want to show data to user like "A,B,C" , I just want to show "A".
View 5 RepliesI've watch the videos on asp.net and I've looked online and have found nothing.
I have a search box on a site, that searches for recipes. Each recipe has a what you're making image, a title, and type(dessert, lunch, dinner).
All of these items are in a DataService, which I can query against and get a list of the items they are searching for.
Now I'm using VB's ASP.NET MVC3 w/ Razors for the site and I'm trying to get some auto completeness going on when the user enters text.
What should happen is when the user enter text, it will call an ActionResult in the Search Controller. Which queries the DataService and puts all the search results in a model. With that model I return a PartialView, results, with the Model included.[code]...
I have two textboxes on the screen. They are used for startdate and enddate. If the user does not enter anything in the textboxes I pass nothing (VB.NET) to the webservice. When the webservice receive it on the other end it shows the value "#12:00:00 AM" which I think is the default for the datetime field. Anyway, now I do not want to pass this value to Stored procedure since it will not work. How can I check before sending values to sproc that the value is not the default datetime.
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