Repeat Array Calculations Multiple Times For Different Objects?
Mar 14, 2011
I am writing a numerical model to perform a set of calculations within a unit, pass the output to a new unit and perform the same calculations and so on. To do so, I have created a complicated set of functions. I have various arrays which store function outputs that are used for other functions within the program. I am trying to modify the language of the program so the functions can be repeated for each unit without literally repeating each code sequence with modified variable identities. For example:
for x = 1 to 5
for z = 0 to 2
y(z) = 3x +6
[Code]....
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Apr 19, 2012
I am designing a rdlc report in vs2008 for windows application. I want to display the purchase and sales based on department. If i select one department it works fine but have no idea about how to display each department's purchase and sales data in different tables. I have used embedded resource to the report. Report is designed based on the DataTable(on dataset - xsd file) and which contains, ITEMS,Purchase,Sales and Net as Fields. I have attached an image with describes the format that i want to display.
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Aug 26, 2011
I need a textbox where you can add a number and if you press a button that it will repeat the function of the button the number of times as in the textbox.
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Nov 21, 2010
i am trying to make a coin toss program where you toss a coin a certain number of times then repeat it a certain number of times.
the problem i have is "heads(counter2)" the word "heads" has a blue error line under it how do i sort the error out and also is all the code right
Public Class Form1
Dim tosses, repeat, heads As Integer
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[code]....
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Aug 3, 2011
Im creating a program that randoms 5 questions and when a certain question is shown then it must not be shown again when the button is clicked. Lets say when "What is my name?"array is shown when the button is clicked then it must not be shown again until the last question that is not shown will be shown.
Public Class Form1
Dim random As New Random
Dim Question() As String = New String(5) {}
[code]....
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Feb 17, 2011
I'm trying to make a mastermind game program with visual basic. I started of creating the combination maker for the start of the game. Hoever, in my version i don't want any colors to repeat. I used the random function independently to get numbers from 1 to 6. Each number has a corresponding color. The problem, the values still repeat sometimes.
Here's my code for that part:
Randomize
a = Fix(Rnd * 6) + 1
txtA = a
If a = 1 Then
[CODE]...
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Jun 28, 2010
I have a database (SQL Server 2008) with multiple tables and records. 1 Table contains all kinds of invoice items, which have a unique id, Client ID and invoice number.
My goals is as following:
- I want to show the invoice items in an datagrid, all merged as 1 invoice item (showing date, total without VAT, total with VAT, VAT percentage, VAT value and if the invoice has been paid or not.)
- The datagrid should only contain the invoices for a specific client.
- Should add up totals (Amount paid, Amount not paid, Amount Overdue, Total Amount)
- Should be withing specific date range.
Everything in this table has been saved as varchar except invoice id and unique.
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Apr 6, 2011
got a project from college to create a program for a car company that will provide quote for the loan the client requires to purchase a car. I've created a file which adds,deletes,edits,views all, and a administration section. I need to add the calculations to actually work the quote out. Can either use a case construct or an 2 dimensional array but don't know how i'll do it. Using console application by the way.
[Code]...
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Jul 16, 2010
Does anyone know how to store data from a RTD server into a array for calculations...?
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Jan 5, 2010
How do I (programmatically) find out the key repeat delay and key repeat rate for a system?
A solution that works on any/all .Net capable platforms would be ideal, but the key target OSes would be XP, Vista, and 7.
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Nov 24, 2010
Is there a tool in the toolbox that i can use that replaces checkboxes. i have limited amount of space and checkboxes just keep taking up room. I need the user to select multiple objects like checking multiple checkboxes.
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Jun 1, 2009
I've come up with the following and it's partly working.
Public serial1, serial2, serial3, serial4, serial5 As SerialPort
Public serialports() As Object = New Object() {serial1, serial2, serial3, serial4, serial5}
dComPort = "COM4"[code]....
The above code works fine! But im having trouble trying to now retreive whats stored in the array.In the above example, an entry will be stored in serialports(4), all other array elements will be blank.If I do this it works.
MsgBox(serialports(4).PortName) ' this retuns the value COM4
But I'd like to loop though all array elements and print out ALL the PortNames, The below code doesnt work, I get an error Object variable or With block variable not set.
For i = 0 To serialports.Length - 1
MsgBox(serialports(i).portname)
Next
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Sep 28, 2009
I read the lines from a textfile into a string array and then I use a foreach loop on the string array. I want to go through the same string array again after the loop reach the end of the string array
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Jul 29, 2011
Private Sub WebBrowser1_DocumentCompleted(ByVal sender As System.Object, ByVal e As System.Windows.Forms.WebBrowserDocumentCompletedEventArgs) Handles WebBrowser1.DocumentCompleted
[Code]...
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Jun 27, 2012
So I took this from an example. GetInstance() is called from hundred different places in my program, and when I debug, the line "Prog = New Program" keeps getting hit for each of those calls. Which I thought was exactly what should NOT happen.. Or do I have some fundamental misunderstanding?
[Code]....
It seems the "New" sub triggers a number of calls to Program.GetInstance, before the first one completes. This is due to me earlier having lots of shared public objects in this class, which are no longer shared since the class was made singleton. And these objects, when initialized, calls the Program class for reference to other of it's objects.
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Jan 23, 2011
Here is my [code]...
My textbox (txtCopies) default value is 1 so naturally, as it is coded above, the datarow is added once into the Movies Table. But what I need to know is how to code if the txtCopies field has a greater integer value.
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Mar 26, 2012
I keep on getting errors for every line in the code below that tell me that the attributes cannot be applied multiple times. What does this mean and how can I fix it without changing what the code does?
Imports System.Reflection
Imports System.Runtime.CompilerServices
<Assembly: AssemblyTitle("")>
[Code]....
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Feb 29, 2012
I am doing a project for my company. In that i have to enter the number of items in the first form and in the second form i am going to enter the details of each items. So i have to repeat the second form to get the details number of times depending on the value i have given for number of items in the first form.From the home page i will be entering the values for the master file. after entering the values for the master file then i have to enter the details of the individual item details in a transaction file.
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Feb 24, 2012
I'm trying to loop the inputbox 5 times but I'm not sure how.
Dim payroll1 As String
payroll1 = InputBox("What is the payrolls for store1", "Inc", , , )
Lblstore1.Text = payroll1
I can get it to loop till a specific amount but not 5 times exactly.
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Apr 20, 2009
i need this option for a textbox. the undo/redo in two separate buttons and it should be for multiple times not just once.[code]
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Jul 17, 2011
I have one Private sub that runs in a loop. I want the sub to run multiple times at once. For example the program runs, you press start; you run the program again and press start, again and again... the same program doing the job at once. now i just want one program do to it alone. But i would like it to be user defined. exp. run program. type in a text box 10. press start. and it works as if 10 of them work open working on the same thing.
[Code]...
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Nov 5, 2010
Is there any way that I can tell if a second version of the same program is opened by the user.
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Nov 13, 2010
How can I tell something to use a code without completely adding it in that sub again? I have some code that will be used alot within my program. I could write a DLL, but I don't know how to use those!
Here is my code:
Dim str1 As String = System.IO.File.ReadAllText(Me.OpenFileDialog1.FileName)
Dim s2 As String = str1.Replace(".[1gs5]", "a")
s2 = s2.Replace(".[u775]", "b")
s2 = s2.Replace(".[fsef]", "c")
[Code]...
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Nov 25, 2010
I have a button where I get data from a database that matches a search string I enter. Everything works fine the first time the button is clicked. However, if I click it again with a different search string, I get the same results as the original search string. I've tried to dispose, clear, and reset my dataset before I load the data each time, but it still finds the original query. This is the code I use to get and request the data:
Private Sub btnCfind_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCfind.Click
mdbFile = "TCICUST.DBF"
mdbCond = " WHERE COMPANY LIKE '" & cbCust.Text & "%' ORDER BY COMPANY "
GetDB()
[Code] .....
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Jan 3, 2012
I have a nested class, let's call it class1 and it has class2 inside it; VB.Net eg:[code]
1) How can I define X number of Class2 objects[let's call it: Node(x) array]** with NEW() subroutine called?' this raises error: dim cls2(n) as new class2 end sub.
2) How can I return actual number of Node() array? [code]Outside my class in main project I define cls1 object:[code]Now an array of class2 is created inside cls1.
3) Now,How can I access All of them[node(x) array which is created inside cls1] with all properties and methods available?
I remember I wrote a ProcessManager class with this functionality in .net 2003, nearly 4 years age, I don't have the code now.
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Oct 28, 2009
How can i display (show) the same form multiple times? Lets say Form2. This code only shows the form once: Form2.Show()
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Feb 24, 2009
I have a DGV in VB.Net 2008 connected to an Access DB table. The DGV is not Read Only, but is full of read-only columns except for one, which contains a combo box. The combo box allows the user to select an outcome for that particular row, and then the program copies in a pre calculated value into the "Profit" column depending upon the item selected in the combobox. Then the user hits the Save button and the DB updates (currently via SQL methods in the XSD).
Easy enough so far.
Here is the code.
Private Sub DGUserBets_EditingControlShowing(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewEditingControlShowingEventArgs) Handles DGUserBets.EditingControlShowing
[Code]....
The problem I have is that it would seem that if a user selects the desired outcome from the combobox but does NOT hit Enter, and simply mouses on to a different combobox to again select the outcome for a different row, the first eventhandler is not disconnected and thus the events fire multiple times. This then causes various default MsgBox errors and brings up problems when the user tries to commit all changes to the DB/exit program etc etc.
What do I need to do? Do I need to .EndEdit somewhere appropriate to force the row to save the changes? And where should I call this?
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Apr 25, 2012
I am trying to programmatically add an unspecified amount of new UserControls to a form. One will be added every time an entry is selected in a ComboBox contained within the UserControl. Problem is, the SelectedIndexChanged event fires completely erratically. Sometimes twice, sometimes 3 times, etc., but never just once. No matter how many times I set the combobox's SelectedIndex to -1, it fires at least once with a SelectedIndex of 0. Sometimes the Itemselected event fires multiple times inbetween SelectedIndexChanged events.
InvoiceEntry.vb snippet:
Public Event ItemSelected As EventHandler
Private Sub cboItem_SelectedIndexChanged(sender As System.Object, _
e As System.EventArgs) Handles cboItem.SelectedIndexChanged
RaiseEvent ItemSelected(Me, EventArgs.Empty)
End Sub
[Code] .....
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Aug 15, 2011
I have a number of forms which have a common menu strip rather than copy the control onto each additional form is it possible to just call the menu from another form ?
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Aug 23, 2010
I want to search data and then populate on a datagrid. I write the name and I click the button and it does work well, but then if I want to search for another name, I write the new name and when I click the button again the datagrid comes empty. No data at all. I will put my code'[code...]
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