Creating Two DateTime Objects?

Nov 18, 2009

1. Write a Visual Basic Console Application which creates two DateTime objects. One DateTime object should be used to store a value for date purchased. The second DateTime object should be used to store a value for date paid. See below for more information.

2. Assign values to the two DateTime objects.

3. Use the toString method to display the two DateTime objects.

4. Compare the two dates to determine which date occurred first.

5. Compute the number of days elapsed between the two dates.

6. If the date purchased occurred before the date paid, display: The number of days required to receive payment was ________. Replace the _________ with the number of days computed between the two dates.

On the other hand, if the date paid occurred before the date purchased, display: The number of days this order was pre-paid was _______. Replace the _________ with the number of days computed between the two dates.

If the two dates are identical, display: The payment was received on the same date as the purchase.

View 1 Replies


ADVERTISEMENT

Converting Objects To Datetime?

Nov 3, 2011

I am having a problem converting objects that are dates into actual dates. I'm reading in values from a datatable, and sending them to a JavaScriptSerializer so I can use the values in an open source calendar called fullCalendar.The problem is, the feed from the JavaScriptSerializer contains dates and a boolean value.

My code looks like this:
Dim rows As New List(Of Dictionary(Of String, Object))
Dim row As Dictionary(Of String, Object)

[code].....

View 1 Replies

Creates Two DateTime Objects?

Apr 13, 2011

1. Write a Visual Basic Console Application which creates two DateTime objects. One DateTime object should be used to store a value for date purchased. The second DateTime object should be used to store a value for date paid. See below for more information.2. Assign values to the two DateTime objects. See page 197 in your Doke & Williams book for help with this step.3. Use the toString method to display the two DateTime objects. See page 197 in your Doke & Williams book for help with this step.4. Compare the two dates to determine which date occurred first.

[Code]..

View 4 Replies

Datetime - Creating A Date From A Text String?

Sep 20, 2009

I having a problem converting a string into the date format I need. An example of the string I'm trying to convert would be 215056081909. I would like to convert that string into 08/19/09 21:50:56.The code listed below is what I'm trying to use for the conversion process. When I run the code I'm getting the error below and I'm pretty sure it's because my string has the time portion in military (24 hour) time.

Error:
System.ArgumentOutOfRangeException was unhandled
Message="Index and length must refer to a location within the string. Parameter name: length"
ParamName="length"

[code]....

View 6 Replies

Creating Classes And Objects?

Apr 10, 2011

1) Add a Private variable named _area2) Associate the _area variable with a Property procedure called Area3) Change the CalculateArea method to a Sub procedure. The method should calculate the area and then assign the result to the _area variable.4) Include a parameterized constructor in the class. The constructor should accept one argument: the side measurement. After using the Public property to initialize the Private variable, the constructor should automatically call the CalculateArea method.At this point I believe I've completed the first 2 steps for the Square method, but I'm not sure where to go from therHere is my code for the Square class and the Main Form, in tha order:

Public Class Square
Private _side As Integer
Private _area As Integer

[code].....

View 3 Replies

.net Creating Objects In An Array With Events

Jul 25, 2011

I'm having a problem at the moment developing my application. What i need to do is find out how many modems they are connected to my system and send data to each one in turn. I have the programme working for one modem at the moment.

So I can send data to a modem that i specify, for example a modem on COM port 1. I have functions already that will give me a list of COM ports that I need to open.My problem is that i want to dynamically create a new modem object along side existing modems and store them in a collection.

[Code]...

View 6 Replies

Creating A Class That Contains Other Classes/Objects?

Aug 27, 2010

I'm wondering on how you would go abouts instantiating a class that contains other complex objects. for example an Payment Class which has Date,Time, etc.. and it also holds a reference to a paymethod object which has id,Type,Description etc.. How do you instantiate the payment class with all the other objects without one or the other failing, how do you create the payment class which doesn

View 4 Replies

Creating A String From A Collection Of Objects?

Oct 4, 2010

I have a question. I have a class of Cars that I need to display in a simpli-ish string if they will be sold or not base on their number.

[Code]...

I'd like to display a simple string like this:Cars to be sold: 1, 3-5, 7-8, 11, which is based of the .Sell value.Is there some kind of heuristic to create this kind of string in .NET or is it just a bunch of for/each and if/then and redimming of arrays?

View 2 Replies

Creating Objects Based On Database?

Jun 9, 2011

I have decided I would start small and make a program that would create a "receipt" list in a listbox and a total. Now, I would like the user to be able to add their own "menu" items. I'm assuming the best way to go about this would be to have them actually add it to a database and then a function in the program will refresh the dataset with the new list. However, this is where my problem lies. How can I tell VB .net 2010 that I want to create a new button (or buttons) on the fly, in an orderly pattern on the form, based on the input from a DB?

View 10 Replies

Dynamically Creating And Referencing Objects?

Mar 17, 2009

I would like to dynamically create an object (in my case a thread) and then be able reference that object. Simplistically put, I would like to read from a text file and then process each item using a thread (so that I don't have to wait for each item before starting the next). The problem is that I cannot think of a way to create a new thread dynamically ie. thread name so that I can then wait for all created threads before doing something else.

View 8 Replies

Dynamically Creating Objects At Runtime?

Mar 28, 2009

Is there a way to dynamically create an object at runtime?Background: Basically i have an employee class that i want to instantiate every time an employee logs in. What i don't want it to have an employee object already created for every employee, but when they log in the object gets created.

View 5 Replies

Creating A Command Line Interface With Objects?

Dec 16, 2011

Im considering making my own command line interface with custom commands etc. I was thinking the following objects would be sufficient:

Textbox - for input
Rich text box - for showing processes and output
Button - to insert input

If it can be done, how can I provide line breaks in the output on the rich textbox e.g.

line1: input instruction
Line2: <cp><textfile.txt>
Line3: I/O error, file not found, check file root.

My version of CLI will have no integration with the windows CMD.

View 2 Replies

Creating Classes For Master Child Objects

Dec 26, 2010

I have a Clients master object and then a number of child objects whose exact number is not known in advance such as Client-Contacts, Client-Payments etc, all of which have a one-to-many relationship with the Client master object.How do I define classes for such a scenario? Do I for instance create the master Clients class and can then I create an array of class somehow for child objects?

View 2 Replies

Creating Get/Set Properties For Interfaces And Using Them In Mock Objects?

Jan 19, 2009

I am having trouble assigning values to the properties defined in the mock objects.

Public Interface IAddCustomerView
Property FirstName() As String
Property LastName() As String
Property Message() As String
End Interface

My unit test below always fails saying that getMessage was never called:

<Test()> _
Public Sub Should_Display_A_Success_Message()
_presenter = New AddCustomerPresenter(_view, _repositoryStub)

[code]....

View 1 Replies

Creating Objects - Words And Sentence Class

Jun 21, 2010

I'm using VB.NET (visual studio) to create a chatbox (a program that mimics a human and has a text converstion with you). Two of my main classes are a word class and a sentence class. The sentence object is basically going to be a linked list of words objects. As the program executes, many word objects will be instantiated, and so will many sentence objects. But, each class (used to create the object) has several constants, procedures, and functions defined.

For each object instantiated, are new copies of the constants, procedures, and functions created in memory? Or, is only one copy of the constants and procedures created? Since many many objects will be created during program execution (each word of a sentence will be an object), that if the constants/procedures/functions are defined in memory again and again, that I'll run out of memory. What is the best way to structure my program so that the objects created contain only the variable data, and the constants/procedures/functions are defined only once?

View 7 Replies

Creating Objects From Child Elements Using LINQ To XML

Feb 1, 2011

Is there any way to use a LINQ to XML to query an XML document like the one below to create new (anonymous or strongly typed) objects from the child elements of a descendant? Here is my XML document:

[Code]...

View 2 Replies

LINQ: Creating Objects Of Anonymous Types?

Oct 25, 2011

I am in the process of learning LINQ to Objects. I am querying an array of reference elements using LINQ. In the code below, which I have marked with asteriks and PROBLEM, I am having difficulty returning any values for and I suspect its because of the multiple Select arguments.

'Program name:Querying an Array of Invoice Objects
'Created/revised:
'Project description:To demonstrate the use of LINQ to query objects

[Code].....

View 4 Replies

Populating Dictionary - Creating Objects Within Loop?

May 16, 2010

I am trying to populate a dictionary with objects created from data in a recordset, but am having difficulty with VB's object referencing. I am very new to VB. Pseudo code of what I am trying to do:

dim dict as Dictionary
rs = getRecordSet
while rs.moveNext
set myObj = new MyClass
myObj.properties = rs.relevantFields
dict.add myObj.getUniqueKey, myObj
wend

However, all 'objects' in the dictionary are actually references to the most recently created (and thus last) object in the dictionary. I know why what I am doing above is not working, but I don't know the correct way to do it so that each element in the dictionary is it's own object.

View 2 Replies

VS 2008 Creating Subroutines For Objects Which Are Yet To Be Created?

Mar 12, 2012

I'm creating a list of labels dependent on a few variables based on search results.Say I have 10 search results, 10 labels will be created within a for each statement, however I want to create subroutines for these 10 labels with an onclick event, is this possible

View 9 Replies

Entity Data Model & DataGridView - Creating New Objects?

Mar 30, 2010

I'm pretty new to the EDM, so bear with me. I have a windows form that has a DataGridView on it that's bound from the EDM I created. I figured out how to update my changes fine, but it's when the user creates a new row that I'm having a problem.I tried numerous ways and many google searches, but came up with nothing so far.

[Code]...

Error (occurs when calling _Context.SaveChanges()): Store update, insert, or delete statement affected an unexpected number of rows (0). Entities may have been modified or deleted since entities were loaded. Refresh ObjectStateManager entries.

View 2 Replies

C# - Dynamically Creating Objects At Runtime That Inherit From A Base Class

Apr 27, 2010

I am writing a game editor, and have a lot of different "tool" objects. They all inherit from BTool and have the same constructor. I would like to dynamically populate a toolbox at runtime with buttons that correspond to these tools, and when clicked have them create an instance of that tool and set it as the current tool. Is this possible, and if so will it be better/easier than creating those buttons by hand?

View 3 Replies

Creating Forms And Objects Through Code In The The Load Event Of Form1?

May 22, 2011

I've been working on creating forms and objects through code in the the load event of Form1, truthfully theres a few questions I have under this one category but to start I want to create a button click event that will check what button was pressed then set that button to a variable. I want the event to treat the button that was clicked like it was that buttons click event.Here's a shortened version of my code (Lol if you can call this short):

[code]...

View 3 Replies

Dynamically Creating Objects - Error: A Null Reference Exception

Apr 13, 2011

I am working on creating an application (game) for a PocketPC with Visual Studio2005 in VB/.NET. I try to dynamically create a (new)button upon clicking a label and assigning certain properties to this button. For this I used below displayed code, but this button does not appear on 'Form1' - which is big enough to display it- but creates an error: A NullReferenceException. Such occurs when you try to reference an object in your code that does not exist, but I think I just did by using'..New..' Who can tell me what is wrong and how to fix this? [Code]

View 16 Replies

Linq To Objects - (C#) Creating A Dictionary From An Existing List Without Looping?

Aug 31, 2011

I don't know if this is doable, maybe with Linq, but I have a List(Of MyType):

Public Class MyType
Property key As Char
Property description As String
End Class

And I want to create a Dictionary(Of Char, MyType) using the key field as the dictionary keys and the values in the List as the dictionary values, with something like:

New Dictionary(Of Char, MyType)(??)

Even if this is doable, internally it will loop through all the List items, I guess?

View 3 Replies

Office Automation :: Creating Client Side Excel Objects

Nov 5, 2008

I have a website. In it, I have a button which will export some data from a SQL database to Excel. I want to open an excel workbook on the client and paste the data there. This all works fine locally, but when i publish it, I get this error:ActiveX component can't create object.[code]Have searched the net, and it seems the problem is permission related. Can anyone explain to me how to configure my server so that I can use clientside Excel?

View 2 Replies

Convert String To Datetime & Calculate The Datetime?

Mar 23, 2011

how to convert string to datetime and calculate date

View 3 Replies

Match A Certain DateTime Value With Current System DateTime

May 7, 2010

I'm trying to match a certain DateTime value with the current system DateTime. I have a timer and a label on a form. Timer interval is set to 1000. When the form loads, the timer starts ticking. As soon as the current DateTime matches the value of the variable, it shows a message in the label. When I'm writing the following code, the values don't match even if the current system DateTime is equal to the variable. Label1 isn't showing 'Times Matched':[code]The default format of 'Now' is the same as I have stored in dtmVar variable. So there's no question of format mismatch. Does that mean 'Now' is not actually a DateTime property? Provided, my O.S. is Windows Vista Ultimate and all date/time settings are set to default.

View 1 Replies

Match A Certain DateTime Value With The Current System DateTime?

May 1, 2010

I'm trying to match a certain DateTime value with the current system DateTime. I have a timer and a label on a form. Timer interval is set to 1000. When the form loads, the timer starts ticking. As soon as the current DateTime matches the value of the variable, it shows a message in the label.

When I'm writing the following code, the values don't match even if the current system DateTime is equal to the variable. Label1 isn't showing 'Times Matched':

Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
Dim dtmNow As DateTime

[Code]....

Why is it so? The default format of 'Now' is the same as I have stored in dtmVar variable. So there's no question of format mismatch. Does that mean 'Now' is not actually a DateTime property? Provided, my O.S. is Windows Vista Ultimate and all date/time settings are set to default.

View 1 Replies

Update Datetime Field With Empty Datetime?

Aug 8, 2011

datetime1 and datetime2now two fields are have data ( date )in table recordi want to update only datetime2 is an emptyi am using visual basic 2010 ( visual studio 2010

View 1 Replies

C# - Compare Datetime.Now With A Datetime Variable

Dec 27, 2010

I try to compare Datetime.Now with a Datetime variable I set, using the Datetime.CompareTo() method. I use a timer to compare these every second and display the result, but as the current time approaches the time I set, the result changes from 1 to -1, but never 0, which means these two are never equal. I'm suspecting the Datetime structure contains milliseconds?

View 7 Replies







Copyrights 2005-15 www.BigResource.com, All rights reserved