Mathematical Calculation Model Code?
Jan 7, 2009i need mathematical calculation model code.
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Get A Query String From A Shared Function In A Code-behind Model
Dec 10, 2009I'm trying to get a query string from a shared function in a code-behind model using VB.NET. You have to use HttpContext.Current.Request.QueryString("Query") in order to get it from a shared function, however doing HttpContext.Current.Request.QueryString.Count gives back 0, which obviously isn't right in my case as there's many that exist. Is there some sort of issue with using this static call from a shared function?
View 1 RepliesIn Entity Framework, We Can Use Model First, DB First, Code First But How Can We Create Table Programmatically?
Jun 9, 2012In entity framework we can use 3 approaches model first , code first , database first but each one of them needs manual hand touch(means creating database or create model or write the POCO class codes or entity class codes) before proceeding to the next step ( using EF in context ).What if I want to create database and tables and table relationships programatically and still want to have to features of EntityFramework 4.3.
To be more specific ,from this example http://support.microsoft.com/kb/307283 we can create database , tables and everything using SQL command but we can't have the advantages of entity framework. So if we want to have that what should we do? To give the ability to create dynamic table fields those steps will not be sufficient. In all 3 steps database , table and table columns are fixed. There is no way that a user can create new tables or columns dynamically. http:[url].... in this post , it shows how to create manual db, tables and etc using SQL but it is based on ADO.NET but I want Entity Manager to do that.
Code For A Calculation Program?
May 28, 2009allow the user to enter a stock transaction and determine the stockbroker's commission. Each transaction includes the following data: the stock name, price per share, number of shares involved, and the stock broker's name. Assume price per share = P. The stockbroker's commission is computed in the following manner: If the P (price per share) is less than or equal to $50, the commission rate is $0.19 per share, if P is greater than $50, thecommission rate is $0.26 per share. If the number of shares sold is less than 150, the commission is 1.5 times the rate per share. Display the results in a message box, including the total commission earned.
View 2 Replies.net - Code Optimization On Minutes Pr Hour Calculation?
May 25, 2010The following code takes a timeframe in minutes since midnight and creates an array with minutes pr hour. But, it's slow. Any better suggestions out there? (no, changing language is not an option :-) )
Const clDeparture As Long = 123
Const clArrival As Long = 233
Dim lHour As Long
Dim lMinute As Long
Dim alHour(25) As Long
[Code]...
VS 2010 - Calculation Download Speed With My Code
Nov 24, 2011For some reason my code is a little buggy, and i really would like a speed calculator with my program.
'Download progress bar kode
Private Sub WC_DownloadProgressChanged(ByVal sender As Object, ByVal e As DownloadProgressChangedEventArgs) Handles WC.DownloadProgressChanged
[CODE]...
On Error Resume - Code To Do Some Attendance Calculation For About All The Employes
Sep 10, 2009Im havin a code todo some attendance calculation for abt all the employees in my office.its an automatic pgm which will run at 7 am everyday and email the attendance list before 8am . if theres any error for one particular employee, pgm execution stops and cant continue.since its an automatic pgm i want pgm to run with next employee if the current employee calculation got some pblm. if i use on error resumenext statment if error occur at 11 thline of calculation, pgm still cont to 12th line and executing normal.i dun want it to be lik that.if the error is in 11th line then i want to stop execution of that particular employee and goto next employee....how to do this?
View 2 RepliesVS 2005 Store A Calculation To Use Later And Obtain A New Calculation
Dec 19, 2009I need to store a calculation to use later and obtain a new calculation
[Code]...
Displaying A Mathematical Formula In A Form?
Jun 21, 2010How can I print a mathematical formula in a form? For a example I found in wikipedia a guide to do it in HTML: [url]
[URL]
But how can I do it in VB2008, showing the formula in a form?
Evaluating Mathematical Expression In A String?
Jul 7, 2011Is there a method that allows me to evaluate a mathematical expression in a string? Example (Not actual Code):
Input = "2+2"
Output = SomeMethod(Input)
Output = 4
Update: Nevermind, I found a way around it by using DataTable.Compute.
Mathematical Program (Function To Workout NCR)?
Mar 11, 2009i got bored earlier so instead of doing my Maths homework i thought what the hell why dont i make a program to do it for me. The problem is im getting an error with my NCR function.For those of you who dont know NCR is used in calculating Statistics generally it goes like this
[Code]...
Syntax For Mathematical Operations As SIN , COS And TAN In VB 2005?
Jan 30, 2010What is the syntax for mathematical operations as SIN, COS and TAN in Visual Basic 2005?
View 1 RepliesVS 2010 Reading A Mathematical Operation?
Dec 15, 2011heres the problem lets assume i have a label1 which its text is "(y+1)"i defined an integer, lets assume its x i made some operations up and lets say there can be diffrent results and i want to replace y with that math ops result and then define x as it writes in label1..
[Code]...
Compressor & Decompressor: Mathematical Smallest Combination?
Jul 12, 2009How to load file and save it as different filename? It saves almost twice the original size for some reason?
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim iFile As System.IO.File[code].....
Question 02:How to load it as numerical values?
Question 03:How to try applying an array of mathematical functions to the numerical values to see if size reduction is possible: I want to try testing all mathematical functions with any and all mathematical values of smaller size to see if the file can be compressed.
Create (fast) Mathematical Equations At Runtime
Jun 16, 2009Is there a way to create new mathematical equations at runtime? Obviously you can pass new variables to a given equation, but I need to make a new equation altogether (then give it variables).
[Code]...
Expected Value (mathematical Expectation) In Visual Basic .NET?
Nov 21, 2011I've got a program which starts with welcome screen "Enter the number of the random variables X" and this number refers to the columns. If it is entered 5 => a DataGridView will be created with 5 columns and 2 rows (first one is for random variable entered by the user, and the second is for probability). For example:I have to multiply x1 with probability p1, value x2 with probability p2, and so on. So EX = x1*p1 + x2*p2 +... Here comes the question - how to multiply and then add them?There are only 2 rows, that's how much I need :I've enabled only 2 rows, that's how much I must have for this program:
Const allowedRows As Integer = 2
Private Sub DataGridView1_UserAddedRow(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewRowEventArgs) Handles DataGridView1.UserAddedRow
[code].....
Mathematical Equation - How To Disable Numeric UpDown
Dec 21, 2009This is my way the dynamically generate a mathematical equation everytime the button is click. However, I want the combobox or the numericupdown turn disabled when the next question show out. For example, if the question N is generated, the combobox and numericupdown of question generated before N must be disable means that the user only can input to the current question but cant change the answer of the previous question?
Private Sub btnnext_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnnext.Click
If counter < 10 Then
Dim pnl As New Panel
pnl.Height = 40
pnl.BorderStyle = BorderStyle.FixedSingle
[Code] .....
Evaluate Mathematical Expression From User Input String?
May 19, 2010I am making a simple calculator that will evaluate functions I have a entry box and the user types in simple equations i.e. 1+4*3/5=? how would i make this evaluate the string?
View 7 RepliesHow To Make A Program In Which The User Can Input A Mathematical Function
Mar 29, 2009i want to make a program in which the user can input a mathematical function so the program can then work with it. So the user would input something like x^4+x+2 and then an x and the program would calculate f(x). What i don't know is how to let the user input the function.
View 6 RepliesUses Of Arrays In Programing - Mathematical Concept Such As Fibonacci Sequences?
Feb 7, 2012I am trying to get a better understanding of the uses of arrays in programing, and have been wondering why do programmers use an array when working with mathematical concept such as Fibonacci sequences? why are arrays so prevalent in coding now a days.
View 3 RepliesVS 2010 - How To Use Mathematical Signs As Label Text Randomly
Oct 29, 2011How to use the signs "+", "-", "*", "/" as label text randomly. I am trying to create a math game for my kids. There I need a random sign to display every time they get new question to solve. I am able to display values [random numbers] but could not able to use this signs randomly as a single label text.
View 8 RepliesWhat Data Type Will Allow The User To Input 0 And Allow The Mathematical Functions To Work Properly
Mar 29, 2011I am currently using double data types. The problem I am encountering is that sometimes the user will have to input a value of 0 in the required text box and this creates an error. My question is what data type will allow the user to input 0 and allow the mathematical functions to work properly. Decimals maybe?
View 8 Replies.net - Circular Dependency Between MODEL And BLL?
Sep 1, 2011Assuming an architecture as such.MODEL > BLL > DLL
Trying to implement lazy loading in my MODEL I have run into a circular dependency between my MODEL and BLL..Basically imagine a property in my model that I want to implement as follows
Public Readonly Property ProjectCategory As ProjectCategory
Get
If Me._ProjectCategory Is Nothing Then
Me._ProjectCategory = ProjectCategoryBLL.GetProjectCategoryByID(Me._ProjectCategoryID)
End If
[Code]...
I have my MODEL, BLL and DLL in separate projects and because of the fact that my BLL references my model I can not reference my BLL from my model as this would create a circular dependency.
Asp.net MVC3 Appropriate Model Passing
May 24, 2012I'm quite new to MVC and while I've been trying to follow the best practices , I believe I may not be understanding certain fundamentals of either
-a. Using models and viewmodels appropriately
-b. Passing models into a controller for validation purposes.
The general purpose of my program is to select a stored procedure from a list of stored procedures, create a form where the user can fill out all the appropriate input variables, and then to execute that stored procedure. The tool is for non-technical people, so I'm eventually going to have to do a good deal of input validation.
As such I have four models: A Script Model, a Parameter Model, a Parameter Enum model and a Query Model, and two viewmodels: a paramviewmodel that generates the form to fill out, and a scriptviewmodel that creates a listbox filled with the possible script choices. I am using a prewritten database system to fill out my viewmodels in an init method in my controller (which I'm not sure is the proper way to do this?).
The viewmodels are as follows:
Imports System
Imports System.Collections.Generic
Public Class ScriptViewModel
[Code]....
I'm trying to work out the functionality. Also, I think this may be too much code in the view, even though most of it is display code.
Anyways, I have two main questions. One, does creating a model in my controller, calling an init method on it, and then passing it to the view make any sense in an mvc context (if not, how would I proceed?). Two, if I want to perform validation on the form I output in my htmlhelper, but I want to use my query model validation (and not my paramviewmodel), how can I do that? Most of the examples I've seen involve a controller that recieves an appropriate model variable, and the binding is performed outside the controller itself. They then just check modelstate. Is there any way I could do something similar here?
Edit: Is there any way I can make the syntax highlighting less crappy?
Best Way To Implement A Certain Part Of Model
Feb 13, 2011I am trying to figure out the best way to implement a certain part of my model.I have an entity named Customer which has CustomerLocations (1-*) which have SalesOrders (1-*) which have Invoices (1-*).I want to allow them to have multiple addresses (Billing and Shipping) per customer and per location. I want to store those values in the sales orders and invoices, not a foreign key, what if they delete one of their addresses later down the road.I have tried complex types, but then they can't have multiple, can they? And having an Address entity, customer --> address (1-*) is ok, but a bit clumsy. How would you have a collection of billing and shipping addresses.?
View 1 RepliesBest Way To Use NHibernate With The Repository Model
Mar 16, 2009I have a repository class that defines some basic Get/Save/Delete methods. Inside these, I use NHibernate to do the work on my business entities. For example:
[code]...
However, on my User class I have some properties and collections of other objects that ideally I'd like to be lazy loaded. But of course, the ISession is created and disposed within the repository, which I guess is why, outside of that, when I try to access those properties I get a "Could not initialize proxy - no Session" error.Is my only option then to disable lazy loading when using repositories? Or is it possible (or just foolish) to somehow get the session into scope in the business layer?I do like the repository model, and NHibernate is growing on me (after lots of initial frustration trying to make it work), so what's the best way you gurus have found of using them together?
ComboBox Value - Each Model # Correspond With A Different Id #
Mar 27, 2010Hey I am a newcomer to Visual Basic. I am using VB 2008 Express. My problem is I have a combo box filled with model #'s and I would like to have each model # correspond with a different id #, but I have no idea on how to do this, and I have found no documentation on it.
View 8 RepliesDynamically Set An Item In A Mvc Model?
Jun 19, 2012how to phrase my question, but what I am trying to do is inside a for each loop set the item of a model then set the value of that item.
dim td as new project.model.mymodel create model object
For each dr as datarow in dt.rows
dim itemName as string = convert.tostring(dr("Field"))
td.itemName = "6"
next
I keep getting an error that itemName is not part of collection td
Get Model For Currently Selected Printer?
Mar 29, 2012I have a program that prints raw code to Zebra printers. We are adding some Intermec printers. So I would like to be able to pull the Model of the Printer (selected from a standard printer dialog) and use that to chose the code that would be sent to the printer.
View 8 RepliesLoad A .x Model From A Folder?
Jan 31, 2009how do I load a .x model from a folder and then show it in a box(a picturebox?) on a form?
I know it would use DirectX.
I've looked all over the place for how to do it but can't find any ways