I want to create a logic to calculate the age and unit from entered birth date. eg: If the difference between birth date and current date is >= 24 months, I will want it to display the age in years. If >= 8 weeks, I will want it to display it in months and so on here's my code
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I have tried searching all over the web for this logic. Got many but half of them did not match what i was looking for and half were malfunctioning.I want to calculate business working hours between 2 datetime, where in I should be able to set the working hours as well as weekends and holidays should not be calculated.
View 7 RepliesI am trying to implement a controlling design logic that prompts the user for a length and the area to calculate until he or she enters a number less than zero in the length to end.So far I have it where I believe it�s doing the calculations but it�s not ending when I input a number less than zero or zero.
Sub Main()
' Declare Length As Float
Dim Length As Double
' Declare s, c, t As Float
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I have written one application which communicate with one data logger unit (temperature monitoring unit) and download records after some interval. Unit continuously send current temperature which I have to show on screen and after each one hour I have to download log (all records saved inside unit at max 1024) from unit.
Now problem is after downloading log, application get hang or what we called working in background and resume after some time. If I pause debugger in visual studio 2008 it show control at application start (sub main) with message as "application will resume here after completing execution of current function". There is nothing in output window. So how can i trace is there any events got spool or what actually application doing in background.
Does anyone have a nice sample of a unit convertor handling multiple unit types that I can integrate in my application? I have found this one, but it is only handling one type of unit. For example I want to convert weight as well as volume from and to imperial units.
View 8 RepliesThe application uses ADO.NET to invoke sprocs for nearly every database operation. Some of these sprocs also contain a fair amount of domain logic. The data access logic for each domain entity resides in the domain class itself. ie, there is no decoupling between domain logic and data access logic. I'm looking to accomplish the following:
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I am trying to calculate the number of years for my calculate age event handler, however i am apparently missing a method or whatnot because im trying to calculate the age , can anyone suggest help on this. I need to subtract years to get my age but when i try the birthdate.Subtract (currentDate) method i get an error about not able to convert from LONG?
So below is what I have.
Private Sub btnCalculateAge_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCalculateAge.Click
Dim currentDate As Date
Dim BirthDate As Date
Dim Age As Long
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What code can you use to get the unit in a currency?
For example in 10,340.55 there is:
10 units for a thousand.
3 units for hundreds
4 units of tens.
1 fifty cent
1 five cent.
In many of the articles I have read on the web say that when creating properties in vb.netthey should use the get/set methods and a private/protected member variable in the class.
Like so:
Public Class Person
Private _name as string
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in my page Having 4 Buttons ..(FIRST,PREVIOUS,NEXT,LAST) ..i am confusing to this one..
Actually what i am doing is Iam developing one efrom Designer in this user is adding pages..
so We have given These Buttons (before told)..so user click on First Button page goto Starting page and When click on Next Button Goto Next page ..like this
I have 3 tables:Sales data - SaleID, Date, StoreID, CategoryID, Cost, Retail
Store names - StoreID, Name
Category names - CategoryID, Name
I have a dgv bound to my sales table, and 2 comboboxes, one each bound to the remaining tables, with display member set to the name, and value member to the ID.
An ID of -1 represents "All Stores" or "All Categories"
An ID > -1 represents a specific location or category
So, can I use some sort of If,Then,Else logic to do something like this:
SELECT (*) FROM Sales
WHERE (IF @StoreID > -1 THEN StoreID = @StoreID ELSE True)
AND (IF @CategoryID > -1 THEN CategoryID = @CategoryID ELSE True)
AND Date BETWEEN @Date1 AND @Date2
I've found some different examples of If/Then/Else and Select Case type logic for SQL using google, but they don't seem to fit my situation, and I'm not sure how to apply that to what I'm attempting here.
I tried to make an unit test for this method which is pretty simple only add an object into the data base and if it works well returns true
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I have been assigned a task of exploring unit testing using tools available in the market.My question is how do i write an API that would help in writing unit test cases.Example i can use nunit to write something like this to check whether file exists in the given location.
<Test()> _
Public Sub CheckOutputFileInfo()
ReportPath = "D:temp est.txt"
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So when that code run the program don't switch.Say I want to
Open a file
Write something
Close a file
Way when I open a file, another thread want to open that same file. That means open a file get executed twice.
When i perform unit testing on routines, using the unit testing framwork provided by VSTS, i need to get a output of the unit test and result on to a document (documentation). how do i do i do this?
View 1 RepliesHow do I go about rounding up to the nearest (Unit 10) ie Codes Below
IfVal(TimeHalfFareTextBox.Text = $/£ 0.05)
Then roundup
to $/£ 0.10. Or it might be .....
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In the project that i;m currently working on i;m not allowed to touch GUI for anyreason that includes program testing. I'm in bit of s frustration becuase prior to this all must application were developed and tested using GUI. Typicvally it wold take a me a week to develop an app now it taking more than that. Especially the TDD with Unit testing. The documentation kills more time too......
View 4 RepliesI really like the moq mocking framework. I've used it on several projects. Unfortunately, one of my customers is demanding we use VB.Net. Not my preference, but hey, .Net is .Net, right?I've heard that moq has some trouble with VB. Is this true? Is so, what sorts of trouble? I would expect it to work fine given the language agnostic nature of .Net.
Should I look into using some other mocking framework for use with VB?
I have a unit test project and a project A that refers to the dll B. When make changes to the dll B and build my solution again I get an error meassage: could not load dll B or one of it's dependencies when i try to run the test project. The dll B does not exists in the references of the test project.
View 11 RepliesI want to know is their a way to display the imaginary unit i. For example when I calculate the square root of -25, I want the program to display the answer 5i instead of NaN (Not a Number). So is their a way to display imaginary numbers and even complex numbers in visual basic 2008.
View 8 RepliesI created some string resources in My.Resources. I want to use those resources in my unit tests.How do I expose these resources to my unit test project?I tried simply setting the Access Modifier to "Public" for the resources. This made it so that I can compile the code, but it is ignoring the culture setting.
Bo.My.Resources.Culture = New CultureInfo("en-GB", False)
LocaleTest(Bo.My.Resources.Yes, "Yea")
I am writing a test unit (in MSTest) that consumes an XML file located in the testing project. I have this (solution name is BusinessLogic, project name is BusinessLogicTest):
Public TestContext As TestContext
<TestMethod()>
<DeploymentItem("BusinessLogic.BusinessLogicTestTestData.xml")>
<DataSource("Microsoft.VisualStudio.TestTools.DataSource.XML",
"|DataDirectory|TestData.xml", "Row", DataAccessMethod.Sequential)> _
Public Sub ConvertIntToRoman_DataDrivenTest
[Code] .....
However, when I run the test I get an error: The unit test adapter failed to connect to the data source or to read the data. I belive it's something to do with my DeploymentItem and/or DataSource, however, I cannot find an example (in VB) that works anywhere.
I've got a problem when I'm trying to refresh my form. I've narrowed it down to why I'm getting this error so I'd be interested to hear people's opinions because logically, I don't think I'm approaching this the correct way.
I read from a table that gets x number of records. From the results, I create dynamic check boxes. It's OK if x is greater than the previous refresh but when it's less than, I can still see the old objects.
If I completely close the form and re-open it, it works fine and that is exactly what I'm trying to emulate. However, I'm failing miserably. Here's a broken down version[code]...
I have a datafield [Money] of datatype float.when i input currency value with $,or , it throws an error.How do I allow $ or "," to this field without changing the datatype(I know changing to type money may fix it)
View 3 RepliesWhile building an xml document I require to use logic to dictate the outcome of the xml; logically it is similar to the following piece of code (although this does not work):
Dim buildElement As Boolean = True
Dim xe As XElement = _
<xml>
[code]....
I have managed to do this using the method show below, is this the suggested way of doing this or is there a better one??
Dim buildElement As Boolean = True
Dim xe As XElement = _
<xml>
[code]....
How can i write logic to check is it my sql statement being insert into my database ? is there any ways to create or thing can check thru by using webservice?
View 13 RepliesI have been programming in vb6 for few time ago and i used open SQL Server connection and command objects to make database transactions. I have been searching for similar approaches in vb.net too but not finding any starting point. How can we work similarly in vb.net application?
View 2 RepliesI never used POCOs, so I have the habit of putting a lot of logic in my business object classes. Hence I believe I'm missing some important concepts about class-layouts, and the thought-process that is needed here.
Say if you have two classes; Company and Employee. Could you give some examples of what classes you would build "around" these that take care of various behavior/validation etc.? (Like some class names, and a brief description of their purpose)
Looking at the following
Instead of a message box, how can I make it round when the unit price field is tabbed off of. If they tab in to the unit price field don't round, if they tab out of it, do.
Private Sub UnitPrice_LoseFocus(AllowLoseFocus As Boolean)
' Runs logic to round unit prices with long decimals
' Enter price rounding here
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I want to be able to call forth hundreds of different photos be selecting them from a listbox or something of that nature.
Normally, if I only had a few images, I would amke their visibility false and then use If statements to turn on their visibility once it is selected. However, putting hundreds of images on to a form and then changing their visibility, seems like a pain.
I was wondering if there is a way to call forth each photo within the resources folder when an item is clicked so I don't have to put each one directly on the form.