Addition Of Odd Numbers / Addition Of Small Numbers

Feb 28, 2010

i need help how to add odd numbers that are in my 6 textboxes collection and to see the result to label1 and how to add the textboxes that have numbers less than number 5.


Addition And Same Numbers In Textboxes?

Nov 25, 2011

i am having problem in Addition and Same Numbers In Textboxes

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Calculator - 2 Textboxes Where The 2 Numbers (or Values Go For Addition And Subtraction)

Aug 12, 2011

I have made my calculator and it has 2 textboxes where the 2 numbers (or values go for addition and subtraction) are input and a label where the answer appears. There is other things on the page such as quit, clear etc thats all done but i have one query. I noticed while testing a problem occurs when only one number or value is put into a textbox and a command is hit. For example. one textbox (txtnumber1) has one number in it then i hit multiply and it says the error of course because its not programmed to deal with this (or divide by 0 of course) so i was wondering how i could make so when this happens a MsgBox appears saying a value must be in both boxes or when divded by zero is says something similar.

The line of code:

Private Sub blah blah blah...

If txtnumber1.Text = False Then MsgBox("Please Input Valid Value")

End Sub

I however have not been able to make it work.

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Addition Of 3*3 Matrix

Jul 18, 2012

i have some problem for developing the code for addtion of 3x3 matrix class the code which i have develop is given below. but this class is not executed in code. dont know whats getting wrong in it as m nt getting the required result. in correcting the code as m new in


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.net - Unchecked Integer Addition In .Net?

Mar 8, 2010

I have a project where I want to have checked arithmetic by default, except for one performance sensitive spot. Unfortunately, VB.Net doesn't have an 'unchecked' block.Ideally the framework would have some sort of integer type with explicitly unchecked arithmetic, but I didn't find anything like that. I did find that expression trees have binary expressions for unchecked operations, but the delegate overhead cancels out the unchecked advantage (and then some).

Currently I'm converting the inputs to UInt64/Int64 before doing the arithmetic, then converting back (with a bitwise And to ensure in-range). It's about 50% slower than unchecked arithmetic (according to profiling).

Moving the arithmetic-sensitive part to a project with unchecked arithmetic might work, but it seems like overkill to give it an assembly all to itself.

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Addition Of Items In A Listbox?

Jan 18, 2011

Bellow pls find the code in VB 2008. I must sum up the numbers in the xlistscorebox

Dim tot As Integer
Dim scoresentered As Integer
For index As Integer = 0 To Me.xListscoreBox.SelectedItems.Count - 1


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Addition Of Two Textbox Values?

Nov 5, 2010

Addition Of Two Textbox Values

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Addition Through Single Textbox?

Feb 22, 2012

Alright I have my assignment to the bottom, and my code so far in CODE mark up.I'm trying to get a value in a textbox assigned to a variable (Price) add to a variable (Subtotal), clear out the textbox and loop around. I looked for hours in my book and google and couldn't find m

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


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Addition With Decimal Points?

Feb 6, 2012

i have this code in vb and i want to know how to make it to add decimal points

Dim a, b As Integer
a = CSng(TextBox1.Text)
b = CSng(TextBox2.Text)
Dim result As Single
result = a + b
Lb_sum.Text = result

for example if i add 4.2 + 4.4 its show 8 instaid of 8.6

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Combobobox Data Addition?

Feb 8, 2012

I am using Combobox in data grid view as one of my column type.I am populating this combobox from table in DB.

Now, I want to do is that I can be able to add text in that combobox cell and on clicking submit button on form, this text should get added to table in db.

When i load the form again, again in that combox cell it should display this text along with previous text . means, two items will now get displayed.

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Simple Addition Of Textboxes?

Jul 16, 2009

I have 5 textboxes that the user will input numeric's into (but not all the textboxes may be filled at one time) How can I get the sum of "however many" textboxes have values in them, without getting an error about the txtboxes that have no values in them?

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Compute Addition Of Columns In SQL Database In VB?

Sep 23, 2009

i am currently doing a project on a marking program..I have to total up the marks for question B1 to C2 and compute the sum to 'Total' column.

Table name is 'Student'

Database name is 'Database1'

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Disable DatagridView Auto Row Addition

Apr 27, 2012

I am using DataGirdView in my project.I have some queries listed below.

1. I want to add Rowheader' name like

Column 1||Column2

2. I want to fix the number of Row like just 2 Rows . And if I edit in datagrid or press enter after editing ,the automatic addition of the next row must be blocked.

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Double Data Type During Addition

Mar 21, 2010

Here is an issue that i am facing - VB6


The value of d3 is not coming to 301006308001004.5 but it is getting rounded off. Is there a way to fix this. When I use currency data type, the issue looks solved. However currency cannot hold a larger decimal number. the value of d2 can have more decimal value like 0.343324532553 .

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Sockets In .NET Logout Button Addition?

Dec 4, 2011

I have a problem with the code I will be posting down below, when I use the logout button & then I proceed to re-join & the server gets taken down the client crashes/closes, debug mode shows errors in general as the debug session closes out but it doesn't go to any lines of code or anything for me to find where the problem is happening at.

Now I know this isn't a server issue for sure, no bugs show up in the servers coding program at all & it shouldn't take the servers help for a client to disconnect properly between my app being closed & them using the logout button. It only bugs when the server goes down & only after having used the logout button since you've opened the application..

A first chance exception of type 'System.InvalidOperationException' occurred in System.Windows.Forms.dll


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Forms :: Make A ListBox With The Addition Of Each Item?

Apr 24, 2011

How do i make a ListBox with the addition of each item, the item be removed after 4 seconds? Added time and number of items is unknown. Other parts of the job application should not be hampered. I know that thread should I use, but I do not know.

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OleDbCommand Named Parameters And Order Of Addition?

Apr 8, 2012

I have an ACE OleDb connection to an accdb file that�s working well but I�m mystified by something I recently discovered when using named parameters. Order of adding of parameters overrides the parameter names. I see in the MSDN that is states when in "Text" mode named parameters is not supported. My testing has proven this to be the case. The example below puts "Value 2 in Field1 and "Value 1" in Field2. In fact I could change @value2 to @blahblah and it works.

Dim command As New OleDb.OleDbCommand("INSERT INTO Results(Field1,Field2) Values(@value1,@value2)", con)
command.Parameters.AddWithValue("@value2, "Value 2")
command.Parameters.AddWithValue("@value1", "Value 1")

what is text mode and how do I change it and what other types are there? According to John McIlhinney�s earlier explanation things like date variables are added in a binary fashion including support for DBNull. So this is not "Text" so how am I sending binary data to a Db in Text mode? I�m just not getting why it supports names when it ignores them. Is it simply the case that there is no way to add parameters out of order in my case?If adding out of order is impossible should my command use some other syntax? I see other syntax that just uses question marks in the command dim for the Values section. EG "Values(?,?)".

Is there a way of adding parameters without names?In general I�d love to hear someone to explain this so I can understand the inner workings here a little better and have a little more confidence in what I�m doing here. I can fix my code to work but I feel like an idiot using parameter names that are ignored. I just know I�m doing something wrong even if it works.

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Simulate Addition Of New Record By Adding 1 To Field ID?

Dec 29, 2011

How may i retrieve the total number of records from a table via a SQL select, store it in a variable & in turn, add '1' to it @ a textbox to simulate the addition of a new record?[code]...

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Unable To Do The Addition And Subtraction Side Of The Game?

Mar 27, 2012

i am currently making a maths game but i have run in to trouble trying to do the addition and subtraction side of the game. This is my current class file for my multiplication

Public Class Class2
Private Property question_gameplay_label As String
Private Property correctAnswer As Integer


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VS 2005 - Result After Calculation (Addition Or Subtraction) Zero

Oct 14, 2011

I got a problem with my calculation .The problem is after addition and subtraction calculation I only get result or answer 0, .There are not a correct answer. I try to change the datatype of the variable to decimal and double but answer is still 0.

Here is my coding.
Private Sub btnadditionprice_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnadditionprice.Click
Dim sum6, sum9 As Decimal
sum6 = Val(Me.ItemPriceTextBox.Text) + Val(Me.txtadditionprice.Text)
[Code] .....
Answer which got is 0.000

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VS 2008 - Option Strict On - Errors Addition ?

Feb 28, 2010

With option strict on i have errors addition. I want how to make the addition of:

1. all the odd numbers on a collection of 5 textboxes and see result to label1

2. all the the even numbers to label2

3.all numbers smaller than number 5 to label 3

4. all numbers greater than number 5 to label 4

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WebPart Zone Addition / Deletion At Runtime?

Mar 16, 2009

Adding and deleting a web part zone at runtime. I have tried all possible ways through internet but no luck.

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Countdown - Performing Addition / Multiplication On Entered Number

Sep 20, 2009

I have made an countdown app that is working in a normal way (added picture of it). Now when I select a number in the numeric box and click start, it starts to count down from that many minutes, but what I want is the number I put in the box *3. So if I put in 3 (points) the counter will count down 9 minutes. If it is possible I want a counter at the bottom every 3 minutes the value of the 000 at the bottom of the image multiply by 1 (+1 for every 3 mins timer1 runs).

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Detecting Addition/Removal Of SDHC Cards In WndProc?

Aug 30, 2011

I am attempting to detect addition/removal of volume media in a Visual Studio 2005 project. I can get this to work using the WndProcmessage WM_DEVICECHANGE on all types of volumes except SDHC (Secure Digital High Capicity) cards. Is there another Windows Message I have to listen for? If so, what is it, and what else do I have to do?

Protected Overrides Sub WndProc(ByRef m As System.Windows.Forms.Message)
Dim str As String
Dim devtype As Int32


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Coding To Perform Addition Of Cells On Data Grid View

Jan 11, 2012

i want to know that how can we add two cells of a datagrid view.I have 5 cells, quantity,rate,discount,tax and Total amount.I want to show the total amount in "Total Amount" cell.

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Set Default Values For Data Bound Controls For Addition In Program?

Jun 18, 2012

I have a 2010 form with 22 data bound controls from two tables held in a dataset which is navigated by a bindingnavigator. This successfully adds deletes and updates. However what I need is when adding a new record I need some of the fields to be pre filled out. More specifically I have points balance fields etc which could be any value but will normally be 0 on a new customer so I want to initialize them to 0 when adding new records.

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Create A Tiny Calculator Using The Basic Operators Of Addition - Subtraction - Multiplication

Oct 31, 2011

I need to create a tiny calculator using the basic operators of Addition, Subtraction, Multiplication, and Division. My professor hasn't really covered much of this, so I'm not to sure how to create it.

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Test An Answer To A Simple Addition Sum That Is Input From The User To One Have Stored For The Question?

May 22, 2009

i am trying to make a simple Vb program for children to do simple maths, now im not sure im going about it the right way, i have stored all the questions in a database and have called them up to the form and that is working fine, i cant seem to get the right code to check the answer from the user against my stored answer, i am using txtBox to store my answer and a txtbox for the input

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Basic Addition Calculator - Display Entire Arithmetic Solution Including Answer

Dec 22, 2008

I am using Visual Studios 2008. I'm trying to make a basic addition calculator. It consists of 2 input text boxes, 1 output box and one button. Below is the code I have which works, however, instead of just displaying the answer, I want it to display the entire arithmetic problem including the answer. For example. Instead of just giving me the answer of "6" in the output text box, I want it to say "3 + 3 = 6".

Here is the code I have so far.
Public Class Form1
Private Sub btnAddition_Click_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnAddition.Click
Dim num1, num2, sum As Double
[Code] .....

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Perform Addition On Each Of The Rows And Columns And Diagonally Of The Array And Display The Results To The User?

May 23, 2012

The Random generator works fine. What I have a problem with is adding the rows and columns.

0,0 0,1 0,2 = row total
1,0 1,1 1,2 = row total


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Checkbox - Number Variable Won't Addition By 1 And Display In A Label Everytime The Timer Counts 1000ms?

Apr 5, 2012

Here is my code:

number = 1
If chkFN.Enabled = True Then
If ProgressBar1.Value < 100 Then
number += 1
lblFN2.Text = number


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Create Another Six Textboxes / Same Time Allocate These Numbers In Ascending / Descending Numbers.

Jun 21, 2010

I have six textboxes, and upon button press it randomly generates six numbers, one in eact text box e.g. [43] [85] [93] [1] [0] [17]..i create another six textboxes and at the same time allocate these numbers in ascending/descending numbers.I am not looking for any codes whatsoever, as i love the challenge of VB.Net.

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Project - Average Numbers, Maximum And Minimum Values, Range Of The Numbers

Apr 7, 2009

Im trying to write a program that will do:

1.The average of the four numbers. This answer will be placed into a text box reserved for that value. This text box cannot be changed by the user.

2.The maximum and minimum values. These will be denoted by changing the color of the largest number green and the smallest number red.

3.The range of the numbers. The range is defined as the difference between the largest and smallest numbers. The range will be placed into its own text box, labeled as such. This text box cannot be changed by the user."

Im using visual studio 2008 and it has to be written in VB

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Use .next (random Numbers) To Randomly Select Something From A List Of Numbers But It Can't Repeat The Number?

Aug 16, 2009

So how would I use .next (random numbers) to randomly select something from a list of numbers but it can't repeat the number?I could do:

dim num as integer
dim r as new random
num =,5)
if num = 1 then
elseif num = 2 then

That wouldn't work because it would repeat.If I donwload someone's game can I disect it in VS? :0 I tried going to open project, then I went to the folder and clicked open. It brought me inside of the folder so I tried to open the game but there is no form1 there. It says the games name then .exe in the explorer-like thing in the top right?Also, how would I have a value or something in a label and access it from a button.

Example:This is in a label.

Dim number as Integer
number = 0

Then in the button do

Label.number = 0

How would I do something like that? I want to use that a lot as I did in a different language.

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User To Input Numbers From An Inputbox And It Displays The Total Numbers Entered?

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,


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VS 2008 - Add Two Excel Sheets With Numbers And The Equal (similar) Numbers To Save Once

Mar 28, 2010

how can i add two excel sheets with numbers and the equal (similar)numbers to save once

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Box - Conversion Error - User Enters 6 Numbers In 6 Different Text Boxes - Displays The Larger Of Those 6 Numbers

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


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.


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.


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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Program To Randomly Select Numbers For A Bingo Caller - Prevent Reversed Numbers Being Selected

Mar 6, 2011

I have just about completed a .NET project to write a program to randomly select numbers for a Bingo caller. Over the last month or so Ive learned a lot about .NET but heres something that I consider to be odd and maybe one of you guys can offer an opinion.

One of the features of calling Bingo in a small local club is that callers often use little sayings to accompany certain numbers, I expect youve all heard of (say) All the sixes, clickety click for 66 or 5 and 9 the Brighton line for 59 etc. My little program gives an option to incorporate these with a prompt for the caller that can be edited outside of the program. One of these conventional sayings is used when a number is reversed 12 followed by 21 or 45 followed by 54 for example, when the caller might call (say) 1 and 2, one dozen, number 12 And the other way round 2 and 1, twenty one.

So, I programmed in a bit of code to detect this and to over-ride whatever might otherwise have been the quote with And the other way round and set about testing it. Ive been through literally dozens of full 90 calls watching for the occurrence of a reversed number, spent a few hours doing it, and not once has it occurred which is to say the least, unusual.

So, Im wondering about the Rand Function, could it be that it isnt possible for a reversed number to be selected? Just so you know, I randomly pre-select the order of all 90 numbers, I fill each of the 90 elements of an array with a random number first checking that the number selected hasnt already been stored, if it has, I just get the next random number (and check that too of course), but I cant see how that could prevent reversed numbers being selected, especially in light of the fact that frequently it's not the 'next' number that's used.

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Generate Automatic Numbers For Order Number And Inquiry Numbers?

Feb 15, 2012

am writing an system application for a company that must generate inquiry id and order id automatically. Whenever a customer makes a new inquiry or new order by clicking the add button, an automatic number should be displayed in the text box and when it's saved, it should be saved in the database access.

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Sort Strings With Numbers When Want Numbers Sorted Based On Their Dimension?

Nov 9, 2010

How do you sort strings with numbers when you want numbers sortedbased on their dimension?

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