VS 2008 Input Box Data To An Array

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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User Input Data From Textbox Into An Array?

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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Input Data Into An Array From A Text File That Are VBTab Separated?

Mar 19, 2010

I am having trouble turning a set of data from a .txt file into arrays, basically, what i have in the text file is:

Eddy vbtab 20
Andy vbtab 30
James vbtab 20

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VB 2008 Check For Data And Make The Program Stay There Until The Data Is Input?

Aug 3, 2010

I have a program for school project that has input fields for Name, Address, City, State and Zip. I need to error check so that the fields are not empty.I have used If statements that check to see if the fields are empty and shows a message box if they are but if I leave the whole form empty and click the button that activates it, all the if statements go- one by one instead of pausing for the user to input the required data.How do I check for data and make the program stay there until the data is input? I have tried TRY/CATCH but it won't catch this type of error.

this is the

'This program computes customer's bills at the pizza shop for all combinations of
'crusts, toppings, sizes and discounts
Option Strict On
Public Class PizzaForm

[code].....

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VS 2008 - Use Regex Or An Array To Display Some Output From An Arithmetic Input?

Sep 19, 2009

I've to make a program that reads an arithmetical sentence from a textbox, e.g 12.3*34+4*5-3 and then on another textbox identify and display what is the content of the first textbox, for example taking the last ex:

If I have this input:

12.3*34+4*5-3

The output should look like this:

<number>12.3
<operator> *
<number> 34
<operator> +

[code].....

This program should only read this operators like (+,-,*,/).I'm have in mind 2 ways of doing it, one with regex and the other taking the first sentence, put it on an array, then trim it, and somehow get the values of the array and identify if it is a number or a decimal number and if it's an operator and then display it.

The difficult part or the part that i can't conceptualize is how to implement it with regex (it should be easier with a regex format than storing it on a array).I write a bit of code, I used an array to store and then to print the numbers and I used the split function to separate the math operator, but I dunno how to print the operators and the tags.

vb
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Dim Sentencia As String = TextBox1.Text Dim i As Integer Dim arryTextBox() As String TextBox2.Clear() arryTextBox = Sentencia.Split("+", "-", "*", "/") For i = 0 To UBound(arryTextBox) Dim Array As String = arryTextBox(i)

[code].....

Btw, I also have the code to validate the input on the textbox ::wink::

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Obtain Index From Array Where An Input Value Lies Within A Range Of Values In The Array?

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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Null Reference Exception Unhandled Error When Input Is Saved Into Array After Array Has Been Erased?

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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VS 2008 : Make A GUI That Can Input Data Into An Exe That Is Already Made?

May 13, 2009

I am trying to make a GUI that can input data into an exe that is already made.

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VS 2008 Control Input Data In DataGridView

Apr 16, 2010

Here is my problem: I have a DataGridView and I am adding a new row. In a particular cell, I have to check that the user does not enter existing values in the related table. That is, the value of that cell must be unique. If the user enters an existing value, the application must:

- Show error message

- Clean the cell

- Put the focus again into the cell, to allow the user to enter another value.

Would you know someone do this?

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VS 2008 : Have Multiple Threads Input Data Into The Same Arraylist

Dec 20, 2009

I want to have multiple threads input data into the same arraylist, so they would need to share it. If this is possible how can I do this task?

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Input - DataGridViewTextBoxColumn - Column Should Not Accept Input Of Data

Jul 29, 2009

On geting input into DataGridViewTextBoxColumn but the column should not accept input of data that is not integer like; 10003, 2.00, 1500.00

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Get User Input Data Into The Loop Of The Input Box?

Nov 3, 2011

Option Strict On Public Class Form1 Private Sub btnDistance_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnDistance.Click 'The btnEnterSpeed click event accepts and displays up to ten speeds from the user'and then calculates and displays average speed

[Code]...

I cannot figure out how to incorporate the number of days into the input box then get it to loop and count the number of times the User inputs in the number of days. Then I have to incorporate it into the equation to get the total distance D = MPH * Hours. What I have right now wil not count up the number of days and locks up after I input one number and will not add anything to the listbox. Because I also have to make sure that they cant add nonnumaric values and the number of hours per day cannot exceed 20. I have put things in and taken them out but it has been 2 days and I am lost now

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Input A Data/value To Excel Through An Input Form?

Mar 16, 2009

how to input a data/value to excel through vb input form and get the data/value from excel back to the input form?? (For example: put a number into exel A1 from input form and get another number from ecel B1 bact to the input form)

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Adding Together Input From Input Box Data?

May 2, 2009

I've been working on some code to add together input from an input box to make a string and display it in a message box. I've put the code in a loop so that it will add all input into the string until nothing is entered in the input box.

Dim stringInput As String
Dim message As String
Do Until stringInput = String.Empty

[Code].....

All I get is just the last input entered to show up in the message box and none of the previous entries. How do I get all the input to be added together and show up in the message box?

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Input Value Into An Array

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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Getting Textbox Data Into An Array: VB 2008

Jun 8, 2011

I have textbox in my form .. I enter the student name in the text e.x (vbstudent)

I want to sign textbox data to array, each letter in one index.

ex
array(0)=a
array(1)=l
array(2)=f
array(3)=r
array(4)=e
array(5)=d
array(6)=o

How can I do that ..

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Get User Input Into Array

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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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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Insert Data Into An Array Of A Class In VB 2008

May 3, 2009

I declared made an array of my class like this

Dim
myClass(3) As Class1

Now when I try to enter data like this:

myClass(0).s = ("Test")

I get an error "Object reference not set to an instance of an object."

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VS 2008 Put Data From Tables In MS Access Into An Array In VB?

Mar 28, 2012

Dim cn As String = ("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=Database genk.mdb;")
Dim SQLString As String = "SELECT * FROM Products"
Dim DBConn1 As System.Data.OleDb.OleDbConnection = New System.Data.OleDb.OleDbConnection(cn)
Dim DataSet1 As New DataSet()
Dim DataAdapter1 As System.Data.OleDb.OleDbDataAdapter = New System.Data.OleDb.OleDbDataAdapter(SQLString, DBConn1)

[Code]...

When the user clicks the button the all the data in my Products table is displayed on a datagrid. How can i put the data inside my Products table into an array so i can manipulate my fields to undergo quick sort.

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File Input (String) To Array

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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Read User Input To An Array?

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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Store User Input In Array?

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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Use An Array To Store User Input?

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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VS 2008 Jagged Array With Multiple Data Types?

Mar 13, 2010

I have a jagged array.

vb
Dim jaggedarray(numColumns)()
Does this accept multiple data types?

I'm trying to get the results of a SELECT SQL query from Data.OleDb.OleDbDataReader.Item Are there any better ways of approaching this?

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Input Several Boxes Of Data On One Form And Display Individual Pieces Of That Data On Several Other Forms

May 22, 2009

I have just started with vb and would like to know if there is a way to input several boxes of data on one form and display individual pieces of that data on several other forms at timed events in the future?

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Code That Reads An Input File And Store Data In SQL Server Data?

Sep 11, 2009

I am new to VB.net. I want to read and input file and store that data to an SQL Server database. Do you have an sample code that do such?

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Create A Graph Where The User Can Input Data Into Textboxes And Then Plot The Data?

Jun 15, 2009

I'm just trying to create a graph where the user can input data into textboxes and then plot the data. I am attempting to use Zedgraph, but open to other suggestions. The program below creates a plot, but it won't update when the textboxes are updated.

Imports ZedGraph
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

[code]....

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Choosing An Array Based On User Input

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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How To Input Several Strings As String Array Elements

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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