Input Box To Array List?
Mar 21, 2009
im creating a simple program where the user inputs there own numbers in a textbox and the program works out the total and average and produces a bar chart.I have done the hard part of creating the bar chart, but i am stuck on using the numbers in the text box from the array.This is the code for my array lists:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles graph_btn.Click Dim aMonths As ArrayList = New ArrayList(), aAmounts As ArrayList = New ArrayList()
aMonths.Add("1")
aMonths.Add("2")
aMonths.Add("3")
aMonths.Add("4")
[Code]...
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Apr 23, 2011
This is what I have so far, I know it should be simple as hell, but I'm having a huge brainfart at the moment. Im going to continue messing with it though. Im trying to make it so I can input a number for a percentage, multiply that with my current array prices, and display the total in the listbox. I have a few theories on why it isnt working but cant pinpoint which one to use, I'm at a basic level to this and still learning the process. Im also pretty sure I dont have everything I need on here yet.
[Code]...
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May 27, 2012
I have a program that will compare an array of grocery list items glist and an array of coupon item clist.When I compare the two and if there is a match somewhere in the array I want to have a picturebox visible.When there is no match, I want the picture box not to be visible. [code] The code seems to work great until I come to the else statement.When the code finds a match it displays the picture box and the msgbox without error, but as soon as the message box is cleared, even though i've input it as an ELSE statement, the picturebox goes false again.Does anyone have any idea of how I can "hold" the picturebox to stay visible while the match between the arrays exists?
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Dec 12, 2010
Per this UserControl that can be added to a blank form, I would like to use the HorizUnits array below to map custom grid x coordinate from a mouse x position.For a given input value 13, what syntax would I use to obtain a value of 2 where 13 lies between Value 10 and 16 for which 2 (Name) would be the custom grid's displayed coordinate position?
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Jun 23, 2011
n my project i am to enter a name and a test mark into two separate text boxes and then select the button to store the information into the arrays, one array for names and another for marks, but when it is reset using the Erase <Array> fuction andi try to re enter information, no matter what information is entered i get a "Null Reference Exception Unhandled" Error.I am using Visual Basic 2008.My code is as it says from now:
Public Class frmAdverageTestMarkCalculator
Dim ClosingMsg As String
Dim Closingtitle As String
[code].....
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May 3, 2012
i have issue returning a list in a web method. here is the code
<WebMethod()> _
Public Function getTags(para_parents As String) As List(Of getTypeDetailsByParentName_Result)()
Dim context As New PPEntities
[code]....
the error is
Value of type 'System.Collections.Generic.List(Of SaftyonRoad.getTypeDetailsByParentName_Result)' cannot be converted to '1-dimensional array of System.Collections.Generic.List(Of SaftyonRoad.getTypeDetailsByParentName_Result)'
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Jun 20, 2011
I am trying to get a count of all the times a byte sequences occurs in another byte sequences. It cannot however re-use a bytes if it already counted them. For example given the string let's assume the byte sequence was k.k it would then find only 3 occurrences rather than 5 because they would be broke down like: [k.k].[k.k].[k.k]. and not like [k.[k].[k].[k].[k].k] where they over lap and essentially just shift 2 to the right.
Ideally the idea is to get an idea how a compression dictionary or run time encoding might look. so the goal would be to get down to just 2 parts, as (k.k.k.) is the biggest and best symbol you can have.
Here is source so far:
[Code]...
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Sep 14, 2009
Do anybody know how to input value to array? I know how to input the value by editing the code but I want to let users to enter value by themselves (such as using a input box). Plz help!
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May 20, 2009
I have a class called Car. Car has a bunch of properties i.e. Car.Color. CarService has a method called GetCars(). Within GetCar, I have a loop that appends a List of, you guessed it.. Cars.[code].....
I get: Value of type '1-dimensional array of Namespace.Car' cannot be converted to 'System.Collections.Generic.List(Of Namespace.Car)'. What would be the best way to convert this 1-dimensional array' back into a List of Cars?
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Dec 15, 2009
I have a variable declared as...
Dim MyList as List(Of String)
I would like to create an array of these lists of string.
Something like....
[code].....
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May 17, 2011
In my program, I need to have the user input a list of numbers separated by commas. How would I go about storing those numbers? Would I put them into an array? If so, how?
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Jan 15, 2012
I have 4 string lists as follows
Dim input_list As New List(Of String) Dim input_POS As New List(Of String) Dim trigger_list As New List(Of String) Dim trigger_POS As New List(Of String)
I want to compare the contents of the input list (containing words (e.g., want, the) etc. to the ones of the trigger list (containign again words) and if a same entry (i.e. word) get the POS for both input word and trigger word from the relevant lists and put them into a property list. For example
input list (want, the, right)trigger list(want, there, wait)input list POS (verb, article, adjective)trigger list POS (verb, pronoun, verb)
Output property list (want:verb, want:verb) (only want is common between input and trigger list). Then I need to conduct a test between the two property items for similarites. If they are exactly the same, the code should output a confirmation "i.e., Yes" into a textbox. If not the code should output a "No" plus the contents of the property list into a textbox.
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Sep 30, 2008
I am trying to write a program that reads values from a datafile and makes the data available in an array for further use in the program. The data consist of a description and then a value (COM_PORT=COM1, for example). My idea is to put the data in an array so that I can just search the array for COM_PORT and I will get COM1 back. Is that a good approach of handling it this way? What methods would I use to put the data (I use FileSystem.ReadAllText, the data is in a string) into an array? Would the split method work?
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Feb 12, 2011
I am trying to make a program using Visual Basic that will allow the user to add links to web pages (such as www.google.ca) to a list in the program and make it so that they do not dissapear once the program is closed.
So to get into more detail, I have a text box, a listview, and a button. When the user types a link into the text box it needs to be put into an array (called "addlink") and then when the user presses the button, the link is typed into the listview as an object.
Then if the user clicks on that object in the listview, it will open up the browser using the WebBrowser command. How do I set the text in the textbox to an array once the button is clicked?
Specifications:
OS: Windows 7 Ultimate Edition
Software: Microsoft Visual Basic 2010 Express
Experience with Visual Basic: Average
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Oct 23, 2009
how to pass user entered data (from a textbox) to an array? All the examples I have found show how to populate an array with predefined values. Heres what I've got, its messing and not close to what I want.
Private Sub AddButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles AddButton.Click
Dim AddNumInteger As Integer
[Code].....
When the users clicks the add button the value they entered in the NumAdd textbox is sent to an element?
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Feb 24, 2011
? How do I use an array to store user input collected instead of storing the data in individual variables?
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Mar 22, 2009
im creating a simple program where the user inputs there own numbers in a textbox and the program works out the total and average and produces a bar chart.I have done the hard part of creating the bar chart, but i am stuck on using the numbers in the text box from the array.[code]
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Sep 30, 2011
Hi I've run into a really annoying problem, I'm trying to set the value of a hidden input to a comma seperated list taken from a database but in pure CSV format it won't set the value.The input tag and ul tag looks like this (I am aware of asp:hiddenfield and it's value property but I'm not using it as I still have this issue):
[code]...
This will populate the li tags but will not populate the value for the input, I've tried using the replace function on the list for the value but it only works if I remove the commas or put other characters infront of them. I've also tried replacing it with the HTML code for a comma but just prints the HTML code out.
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Nov 16, 2009
Should we guard against unanticipated user input from dropdown lists? Is it plausible to expect a user to somehow modify a dropdown list to contain values that weren't originally included?
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Dec 8, 2009
I have 10 constant arrays of data that can be used throughout the program.[code]I also have an array that needs to be populated randomly depending on user input.array_user(8)If the user selects 3 for instance...I need the data in array_user to be populated by the data in array03.I know I can do that with if/then statements...but I'm sure there is a much simpler way to do it.
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Jan 10, 2012
I read a line from a text file with text as "ABC.txt", "XYZ.txt", "TEST.txt".I use code file = sr.ReadLine(); to assign the text to variable file. Now I want to initiate a string array likestring[] FileNames = {file}; it doesn't work. What should I do?
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Mar 8, 2009
I'm trying to make a program where user can input data from a textbox into an array and when the user hit the enter key, it compare it to a data grab from a text file. Here is my code so far:
Private Sub TextBox_KeyDown(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox.TextChanged
Dim input As String
[Code]....
I got the part where the program can graph data from text file and put it into an array called "varia3". The part I could not get is allowing user to enter data into the textbox. When I run the program, the sec I try to enter a letter or number into the textbox the program ended.
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Feb 20, 2009
When I try to communicate with my web service I get this error server was unable to process request. ---> Input array is longer than the number of columns in this table. [code]
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Feb 5, 2009
I need to create a VBA script that can be used to input a list of workstation names and display the memberOf, Home Server and OU for that workstation?
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Aug 19, 2011
What I'm trying to do is make a list of members in a read only textbox getting the data from two textboxes (first and last name) and a 'save' button. I've made a class named 'Deltaker' (Members in english) to store data and a list 'resultater' (eng: results) using the 'Deltaker' class. I'm trying to get user input from two textboxes 'tbxFornavn' and 'tbxEtternavn' and I use my class' public function 'Navn' to display it in the textbox 'tbxHistory'.
[Code]...
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Nov 5, 2011
Is there a way to make one list box dependent on the other based on user input. Here's my situation: A teacher has the ability to enter the name of the student into a listbox via a textbox. The teacher may then select the student from the first student list box and input grades that would go into a grade listbox. If the teacher selects another student from the student list box, the grade listbox would either go empty or show the grades inputed for the other student; all the while retaining all previously recorded grades for other students.
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Aug 19, 2011
What I'm trying to do is make a list of members in a read only textbox getting the data from two textboxes (first and last name) and a 'save' button.
I've made a class named 'Deltaker' (Members in english) to store data and a list 'resultater' (eng: results) using the 'Deltaker' class.
I'm trying to get user input from two textboxes 'tbxFornavn' and 'tbxEtternavn' and I use my class' public function 'Navn' to display it in the textbox 'tbxHistory'.
I've got a sub procedure to add the input to the list and clear the textboxes and enable another reset button.
So for the save button click event I run the sub procedure and I've written a for next loop to display the results from the list. The first name I enter is all good, but with the second name entry both the first and the second name gets listed as well as the first name that is already there. I thought about using the .clear function to clear the list after each input, but I also want to incorporate laptimes in the list and display the best time in a lable at the bottom of the form. Maybe also sort the list, so I need the data in the list to stay intact.
Public Class Form1
Dim resultater As New List(Of Deltaker)
Private Sub AddDeltaker()
[Code].....
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Nov 22, 2010
I am trying to input a text file of figures into a 2-dimensional array. I want to do this so I will then perform percent changes on the respective columns. The text file contains columns and then numerous rows for each columns each number is separated with a tab. The text file looks something like this.
2.2 5.5
3.7 6.3
9.2 9.1
So I need to be able to input the text file, turn it into an array and then find the total percent change. From 2.2-3.7-9.2
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Jun 9, 2011
How do I prompt the user to input elements in a two dimensional array? And how do I then save the output?I've figured out how write and print a program where the program provides the elements (see short version below), but I can't work out how to get the user to input the elements instead.
Solfa(0, 0) = 11
Solfa(0, 1) = 12
Solfa(1, 0) = 21
[code].....
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Apr 15, 2009
I have a program that continuously reads in hex values as part of an rfid reader. My question is: How would I write code that detects when this changes? i.e. I have a visual basic textbox that is continuously updated as so:
[Code]...
And it points to the name of my form. This occurs at the "newArray(p) = strangeCardNames" line of code. If anyone else has an idea for how I can either fix this or another method to detect a change and store it in a variable,
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