Multiply The Number In Textbox1 With The Number In Textbox 2?

Dec 13, 2010

i am creating a currency calculator and need to multiply the number in textbox1 with the number in textbox 2 (exchange rate) i also have a £ or a $ depending on the currency selected.

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Forms :: Use A If Statement To See If Fosters Button And Number 1 On The Number Pad Are Both Pressed Then Multiply Constant By Quantity Number?

Mar 4, 2011

I am doing a bar cash register and I want to use a if statement to see if fosters button and number 1 on the number pad are both pressed then multiply constant by quantity number

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Textbox2 Contains A Number And If The Number Entered In Textbox1?

May 25, 2012

Have a very nooby question here, textbox2 contains a number and if the number entered in textbox1 is higher than textbox2 i wish to display a message box but the following doesn't seem to be working properly?

Sometimes it lets the user enter a higher number, maybe I am doing this wrong?

Private Sub TextBox1_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox1.TextChanged

[Code]...

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Multiply A User Set Digit By A Text Box Number?

Mar 14, 2009

Ok, now I have another problem that I cant seem to figure out I now have the "Labour charge section" just incase the service requires one. which in alot of cases it does. So, I have a test box called text box 1, which I want to be able to insert "hours worked" which is a "digit" and then Have a fixed value, of five. Which the user can later change. The number from the box, and the user specified Hourly charge, must then be multiplied to create the total labour charge which will be inserted into a label view. So, my question first, is, how would the user be able to set the hourly charge and then not be able to change it by accident. I was thinking of having a tool strip with an options tab and then setting, and then you use that to fill the info, and have that hourly charge, hidden of the actuall form so that it cant be changed by mistake. Then, on to of that, how would you multiply these two numbers?

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Multiply Every Member Of An Array By Some Number In-place?

Feb 23, 2010

Is there a built-in way to multiply every member of an array by some number in-place?

Example:

Dim volts () as Double = {1.243, 0.534, 5.343, 2.223, 4.334}
Dim millivolts (4) as Double = volts.MultiplyEachBy(1000) 'something like this

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VS 2008 : Calculation Goes To The Last Entry As Stated The Multiply This Total By Number Of Days(dbl)?

May 3, 2011

I have an application that has 3 list boxes, one selects a workshop, the other a location. the third is to display selected costs.to do the calculation a loop is required. i have written the code but when i calculate the cost the final result to be displayed ends up as being the cost of the last work shop and location * 3,What is supposed to happen is the location is multiplied by the number of days(3 in this case) and added to the workshop cost.the loop is supposed to add all cost from the list box till all have been added.what is happening is the calculation goes to the last entry as stated the multiplys this total by number of days(dbl)?

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For Barcode - Input A Item Number In Textbox And If That Number Will Match In Your Database

Mar 7, 2012

I have a txtbox(for barcode).. if i input a item number in that txtbox and if that number will match in your database, the other information(shall we say, product type, item ID, etc..) will display in my other txtboxes..

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Phone Number Or Landline Number Validation In Textbox Code?

Feb 11, 2012

validation in vb.netemail_id validation,name,mobile number,Telephone number,zip_code,address i want to all code the textbox

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Set A Default Number And You Type In A Textbox A Random Number?

Mar 15, 2012

i want to set a default number and you type in a textbox a random number it should tell you whether it's high or low ,and when you typed in the right nmber it a lable should says something like you win .And also how can you change PART of a lable by typing in a text in a DIFFERENT FORM

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Change The Number In The Textbox1?

Jul 8, 2010

I change the number in the textbox1 but the random appaer the same digits

Public Class Form1
Dim seed As Integer
Dim MyRnd As New Random(seed)

[Code]....

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Check If A Number In A TextBox Is An Even Or Uneven Number?

Mar 24, 2010

Is there a way to check if a number in a TextBox is an even or uneven number?

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Get Line Number And Column Number Of Textbox

Mar 2, 2012

I'm doing a notepad project, just because, and in Ms's notepad there is an option for a statusstrip. I'm just having probems getting the line number and I know it's not called column number, more like selection start. When I do the selection start, it works, just not how I want it to like so:

[CODE...]

but when I use that, it acts funny. I have it in my textbox's.keydown event. So if I were to use the arrow keys to navigate around text then it gets thrown off very easily. How would I do this?

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Random Number Between 1 And 4 Clears Textbox1-textbox4

Jan 12, 2012

is there a way of making a random number generator, which would clear out 2 random boxes out of 3 even though there are 4?

lets say there are 4 answers one in each textbox. if textbox1 is correct, can i make random number to be between 2 -4 and clear randomly either textbox 2 and 3 or textbox 2 and 4 or textbox 3 and 4 and same for other text-boxes if they are correct?

i thought about making two random numbers picked randomly then use alot of if statements, but did not realize i am getting into something ridiculously long. I think there must be easier way than that.

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Supply Textbox2 With Name When Number Is Input To Textbox1?

Jan 11, 2010

I have only really gotten into VB, so am an amateur.I have done quite a lot of search, and have read a lot of conflicting data which has yet to give me the result I'mafter.I have:Windows Form with many fieldsdatabase with 2 lots of data for reference.What I am after if for TextBox2 to give a result from the database when Textbox2 has user input.I have tried If TextBox1 = [Code] then TextBox2 = [Name] from db0 Names$

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Executing A Sql Command - Number Of Values Provided Must Be Equal To The Number Of Placeholders In Query?

Aug 11, 2010

I have a problem with a sql query. Through the query I am trying to search database for any occurrences of string (can be anything) in a column using the SQL LIKE command. The problem is that it works fine for most of the strings say john, jim, ji"m , but does not work when i include the following characters which are ( ' , { , } , and a single quotation mark). MYSQL query takes care of these special cases by putting them in [] block whenever user enters them .But i am getting the following error when i go to query the database using the GetSelectCommand() in VB.NET

Exception Details: System.ApplicationException: Number of values provided must be equal to the number of placeholders in query.I have checked the query over and over again .. but its fine .My database server is Sql Server 2008.So my application throws the exception in this command:

Using reader As MustDisposeDataReader = _
pmSystem.DatabaseManager.GetSelectCommand(selectStatementBuilder.ToString(), New Object() {})

Where MustDisposeDataReader is an instance of a class in an internally developed library, which inherits from System.Object. pmSystem is an instance of the class PlanManagerSystem which implements the commandlayer. GetSelectCommand() takes the select command

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VB - Georgetown Credit Card - When The Last 5th Digit Match The Sum Number At The Last Number - Isnt Working

Dec 10, 2010

I got most part correctly but the only part isnt working right is when the last 5th digit match the sum number at the last number.

Private Sub btnVerify_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnVerify.Click
Dim strCardNum As String
Dim strSumNum As String

[CODE]...

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Filter A Dataset Using A Number Different Inputs, Selected By A Number Of Check Boxes?

Mar 3, 2010

I am trying to filter a dataset using a number different inputs, selected by a number of check boxes. I have all the text base rowfilters working, but I can not make the date filter work unless I hard code the datetime into the code. The database is MS Access and I am using VB2008 to show the data. I would like to be able to use a DateTimePicker to set the filter date (without the time part) Also I would need to remove the time section of the datEnterDate. I cannot change the structure of the database fields. Also the datEnterDate is MM/dd/yyyy, because I'm in England I would like to use the format of dd/MM/yyyy if possible

[Code]...

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Get A Text Box To Show The Word The Same Number Of Time As The Number Selected Using Loops?

Nov 2, 2011

In VB if you prompt the user for a number between 1-20, then a word, how do you get a text box to show the word the same number of time as the number selected using loops?... Ex: please select a number: 4 / select a word: cat....the text box should display ::: catcatcatcat ........

I am doing this for a class and my brain has locked up. Prob. just over thinking it though. Thanks in advance for any help!

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Number Guessing Game - Allows A User 10 Attempts To Guess A Random Number Between 1 And 50

Nov 9, 2009

I am attempting to create a game in Visual Studio 2008 that allows a user 10 attempts to guess a random number between 1 and 50. I have a label box in which I would like to display the remaining guesses as they decrement. The code so far appears below.

My two (I am sure very basic) questions are:

1. How would I pass the random integer generated through the Generate Integer function to the AmIRight button's click function? I was trying to decrement the counter each time the "Am I Right " button is pressed.

2. I would also like to evaluate each "guess" when the "Am I right button is pressed. Is it possible to nest a Select Case statement in a For Next Loop?

vb.net Option Explicit OnOption Strict OnOption Infer Off Public Class frmMain Private Sub btnExit_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnExit.Click Me.Close() End Sub Private Sub txtGuess_Enter(ByVal sender As Object, ByVal e As System.EventArgs) Handles

[CODE]...

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Create A Random Number Generator That Iterates Through A Series Of Number Between An Upper And Lower Bound?

Jun 24, 2010

i wanted to create a random number generator that iterates through a series of number between an upper and lower bound. say between 1 and 100. Basically I want the number generator to pick the numbers randomly and then display them until all 100 numbers are picked without any duplicates. so thats easy I can code that. But what I don't know is how to show those numbers in the order they are generated on a windows form. So i have basically a variable that I will let be changed 100 times (or however many times I want, I don't want their to be a size constraint just using 100 as an example) and each time the number is generated I want it displayed on screen (in a list or something not sure what. Hopefully some type of scrollable list) and each successive number also to be displayed in same format beneath it so that I can see the list in its entirety. What type of form control do i use for that? I could do messagebox.show for each iteration but then user is required to hit ok after each iteration and that would obviously be a bad idea if user selected a large number to work through. Anyways, code isn't exactly necessary just point me in the right direction, i.e.what control (if any) to use.how to format the change in data?

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Program - Requests A High Number And A Low Number From User - Searches Array And Finds All Elements Within Two Numbers

Jan 24, 2010

I 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]...

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ATM System - Check Card Number Matches Up To The Users PIN Number

Mar 13, 2009

I am trying to make a basic ATM system, iv got all the interface done and I have made the link to my SQL database etc. the part i'm stuck on is how I can run a check to see if a bank card number matches up to the users PIN number. To simulate the user putting a card into the machine I've used a combo box, and that lists all the cards, that haven't been flagged as confiscated (there's a column in my ATMCards table that I can set to true or false) then after the user has selected a relevant card there's another text box where they can enter in their PIN number.

Now what I want to do is, if they chose the card number 1234567890123456 in the combo box and they enter in the PIN 1234 into the text box, then, after clicking the check PIN Button if the pin is correct they need to be taken to another from where they can check their balance etc., and if its wrong they got three attempts after which point i want to flag that card as confiscated.

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Byte Array - Error: Number Of Indices Is Less Than The Number Of Dimensions

Mar 16, 2011

Trying to upload a picture file from an online source and store it in a byte array but am having the error: "Number of Indices is less than the number of dimensions in the indexed array".

Dim Bytes() as Byte
Dim Inet1 as System.Net.Webrequest

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Convert Decimal Number To Binary Number With Fixed Bits?

Oct 29, 2010

I want to convert numbers from 0 to 15 like that

[Code]...

Problem is that when we convert 2 to binary number it gives only 10 in binary, but i want to convert 2 to 4 bit binary number 0010.

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Converting The Number Of Frames (in A Video) To A Number/time Format?

May 28, 2011

converting the number of frames (in a video) to a number/time format. For instance, say a video has 110,212 frames at 23.976 fps, it works out to 01:16:36 (hh:mm:ss) with 18 frames remaining. I would like to format the result in a Textbox like the following:

[Code]...

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Count The Number Of Affected Rows And Display The Number In A Messagebox?

Jan 8, 2012

how do i count the number of rows that are affected when I updated a table, and display the number of affected rows in a message box ??

here is my code for updating the table ...

For Each row As DataGridViewRow In DataGridView1.Rows
req = row.Cells(Column1.Name).Value
If row.Cells("Column1").Value = True Then

[Code].....

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Generating The Number Of Textboxes Nicely When The User Input A Number

Feb 15, 2012

I am trying to draw textboxes when the user enters the amount of textboxes to be drawn on one form and the textboxes get displayed on the another form. I have found these codes online but it works with inbuilt codes I guess. That is, the number is already hard coded in the form.

[Code]...

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Number Beside The String And The Number Will Increment Which Time The Button Is Clicked?

Jan 31, 2009

I created a listbox using VB.NET. When the user select an item (it is a string format) in the listbox and click on a button, there will be a number beside the string and the number will increment which time the button is clicked. Anyone know how to do it...?Below is the coding I'd done, but I don't know how to do the increment part. Anyone know what coding I need to add?

Dim no As Integer = 0
listBox.Items.Add(listBox.SelectedItem & no)

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Prompt The User To Enter The Beginning Number And The Ending Number

Oct 4, 2009

I am supposed to create a program in my VB.net class to do the following:

1. Prompt the user to enter the beginning number and the ending number.

2. Find the sum of the even numbers between these two values, inclusive.

[Code]...

We are currently using for next statements in the class. I know how to prompt for and utilize the numbers that are input etc. My problem is the EVEN numbers part. I obviously have to determine if the number is even and then use a step value of 2 from there. But not sure how to determine if number is even or odd (guessing to use mod, but totally lost).

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Prompt The User To Enter The Beginning Number And The Ending Number?

Mar 2, 2011

I am wounder if anyone might have a web site or no where I can find the information so I understand how to prompt the user to enter the beginning number and the ending number. And then to find the sum of the even number. Now does anyone know what a name convention is ? I have tried to look it up on the forums but cant find nothing on it.

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