I am in Visual basic 2010 express.The user will input how big the array dimensions will be.
An inputbox will appear asking the user to type each row in the array.
How do use substrings to separate that string in into each box in the array. (probably separated by commas or spaces?)
I'm making a program and was wondering if someone could please help me (its a console app) to display words from a string that the user has inputted starting with certain characters?
View 7 RepliesI am a beginner at VB.net programming. this score calculator. The application is suppose to total up a sum of numbers added, show the count, and an average of the numbers inputted. I try using an array to store the inputted values. Now I'm have issues with my loop keeping track of the total. Also, how do I clear out the array to start over?
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I have created a program in Visual basic 2010, the program contains many different objects e.g. datagridview, textbox, buttons, graphs etc, which can all be modified by the user. The user can also select a file using 'SaveFileDialog'.
Is there a way to save all the properties associated with each object to this file and later load the program back to exactly the same state it was saved in, after the user has selected saved file using 'LoadFileDialog'? Preferably in binary.
I can do this the hard way in ASC11 format by interrogating objects user editable properties and saving them. I would rather not use this method as it will require a lot of code and any future program changes will require a lot of extra work.
I have created a program in Visual basic 2010, the program contains many different objects e.g. datagridview, textbox, buttons, graphs etc, which can all be modified by the user. The user can also select a file using 'SaveFileDialog'.
Is there a way to save all the properties associated with each object to this file and later load the program back to exactly the same state it was saved in, after the user has selected saved file using 'LoadFileDialog'? Preferably in binary.I can do this the hard way in ASC11 format by interrogating objects user editable properties and saving them. I would rather not use this method as it will require a lot of code and any future program changes will require a lot of extra work.
I have created a sample program that dynamically created up to 7 numbers of Labels and Text Boxes. Here I want to add those numbers inputted by user on dynamically created text boxes.
Dim WithEvents TxtBox As TextBox
Dim WithEvents LblLabel As Label
Dim NoOfControl As Integer
Dim A As Integer
[code]....
I have been assigned a task to create a basic hangman program and I need help to figure out how to show the letters that the user has guessed correctly without displaying any of the other Characters.The word that the user will be guessing is in a label the user will be guessing letters by clicking buttons This is a piece of the code for one of the buttons the user can click to guess the letter "C":
btnc.Visible = False
Guessletter = "C"
If lblword.Text.Contains("C") Then
*this is the part where I become stuck*
End If
Simple requirement to split a double value inputted into a string to decimal and fractional.I enter 12.1 and it splits it into
12 and then 0.0999999999999996
Where is my 0.0000000000000004 gone??? Did the cpu tax it?I have tried a few other tricks to split the number and i get the same result...The fractional results of each attempt
12.0 0 Amazing!!!!
12.1 0.0999999999999996
12.2 0.199999999999999
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my code is :
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The error is Value of type '1-dimensional array of string' cannot be converted to 'String'.
I'm converting a user generated list box to an array and then generating a user defined number of random strings and placing it in a textbox.The code I have works fine as it will generate the number of random strings the user wants, except sometimes a line is blank at the top of the list but is counted as a string.
View 4 RepliesI'm trying too have values inputted through a text box, and then have the program calculate how much the person will earn in their working life.
Dim Name As String
Dim Salary, Total, Raise As Double
Dim Age, Retire, Count As Integer
[code]....
However, whenever i click the button to calculate, it gives me how much he would have earned after 1 year with 1 raise, but i can't see what i'm missing.
I'm working on a console application in VB .net that checks a number that the user has inputted, and tells you whether the number is prime.
The number that has to be inputted has to be between 1 and 100. I have all the code so far and at the moment it can check whether the number is or isn't within the boundries.
how am i going to check if the directory that was inputted in the textbox is a correct directory?
View 2 RepliesHow do I only allow integers to be entered when coding for a calculator in Visual Basic 2008 while allowing real numbers to be displayed as the result of a calculation?I thought I had come up with the solution but I think I may have made a mistake in my coding...
Public Class Form1
Private Sub GroupBox1_Enter(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles GroupBox1.Enter
End Sub
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I'm making a program for a class, as usual. I need it to grab the smallest number, of the 2 inputted numbers.Well, there is 4 inputted numbers. For instance the user inputs the following:
Price Ounces
20 4
12 4
I divide the numbers, and get 5 and 3.The better buy is going to be item 2, as it is $3 per ounce.But I need the program to grab the smallest number AFTER dividing, and then display that in a label. I need to know how to grab the smallest number. What statement do I use?Odds are, it's something simple and I'm overlooking it.
I have to write an application that has the user input data in 3 separate text-boxes and press "OK" to save it. The user can repeat this as many times as they want.I then need the application to show the information inputted in each of the 3 separate arrays. Now I was told this can either be done by using a print page or by having another form show the information. I was told having another form would work best. I guess my question(s) are: is it possible to show the information from all 3 arrays in another form? Also, is there a link to any code that can help me out in listing information from a
View 7 Repliesi have an array contains a-z.Then i have a textbox and when click on the button, it will replace the text inside the textbox to the index number of the array.Example, from "abc" will become "0 1 2" The code below do the job.how to do so that i can replace the text inside the textbox from "0 1 2" back to "abc" based on the array?
Dim txtKey As String = readKeyTxt.Text
readKeyTxt.Text = ""
For Each b As String In txtKey[code].....
I have a NumericUpDown control with a range of 10-50 and I want to have the selected number be multiplied by an amount of money to create yearly cost. I dont know, however, how to use inputted data from the NumericUpDown control in a statement because I cannot convert it to Integer and I also dont know how to call in the data even if a number is selected.
View 3 RepliesI need to append STRINg to Array and cast it 1-dimensionalArray
Dim remoteFileNames(0)
As
String
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Here "FtpRemoteDirectory" is a string and ftpFileNames() is the Array String which list the FileNames.
and remoteFileNames is 1-dimension array
I am writing an OPC Client in VB.NET (2008) and I am using an OPC wrapper from Graybox. I am having some problems with the data types. I have an Array of String that contains all of the OPC Items that I wish to read from the OPC Server. When I attempt to use the Array of String, Option Strict causes the following compile error message:Error 5 Option Strict On disallows narrowing from type 'System.Array' to type '1-dimensional array of String' in copying the value of 'ByRef' parameter 'ItemIDs' back to the matching argument. How do I pass the Item ID's (all strings) in an array?
View 1 RepliesI'm having problems with marshaling in VB.NET to C++, here's the code :
In the C++ DLL :
struct APP_PARAM
{
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how do I get the program to check if the inputted word has ascending alphabetical letters
Public Class frmAlphabetical
Private Sub btnPress_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnPress.Click
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i'm a freshman and was handed this assignment a short while ago and i'm having extreme difficulty figuring out why i keep getting the following error message whenever i click btnGenerate.Click on the form:Error1: Unable to apply this change while debugging. 'Private Sub GroupBox1_Enter(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles GroupBox1.Enter' was deleted that modifies 'Public Class Form1'. You must revert the change or stop the debugging sessionBasically the assignment is requesting that we build a 'Call Cost Calculator' and since im relatively new to this i've never worked with strings before and also get the follow errors:Warning2Variable 'sCountryBeingPhoned' is used before it has been assigned a value. A null reference exception could result at runtime.Warning3Variable 'sPhonePlan' is used before it has been assigned a value. A null reference exception could result at runtime.
My form codes:
vb
Public Class Form1 'heading Const sFormHeading As String = "Call Cost
[code]....
I reals because it's driving me mad and i'm honestly quite literally stuck and can't move on until i get this sorted.
I want to write a program in vb.net that measures the frequency of sound inputted from microphone. What kind of ideas can you offer
View 1 RepliesI have an array defined As string and the value stored in site is like "7E", "A1" and so on. But in order to send out this array through serial port. I need to change the the array to As Byte instead of using As String. How can I convert it?
View 8 RepliesI've been working with a sig capture application sample on a windows mobile device, The data is sent via IP to a host as a byte array and is then drawn onto the screen of the host as it appeared on the client. I was able to get this into the form of a bitmap object so I could print it or save to a jpg file. That all works well. The problem now is that I need to store this data in a database and then be able to recall it at a later time and recreate the signature image.
The byte array data is much smaller than the actual image so I would like to store it in that form. My issue is that when I convert this byte array into a string and back again my program can no longer re-create the image. Once I saw the problem I created the code below as a test and added the msgboxes to get an idea what was happened to my data.
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i have 2 string arrays and I want to merge them together then put the elements into a third string array ..
for an example :
string1="a","b","c"
string2="d","e","f"
after merging:
string3="a","b","c","d","e","f"
Im working on a program and I get this "Value of type '1-dimensional array of String' cannot be converted to 'String'." heres the code that gets this error:
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I don't understand why the line final.join etc pops up with these errors!! Value of type 'String' cannot be converted to '1-dimensional array of String' And Access of shared member, constant member, enum member or nested type through an instance; qualifying expression will not be evaluated This is my code.
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I want the Function to accept List(Of String), Array & String and similarly return List(Of String), Array & String respectively. The Function simply adds a string (month) to the input collection. I just want to use it for string, array and list with needing to think of conversions.
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