VS 2008 Getting Head Around Objects / Storing Them In Code
May 5, 2011
I'm trying to get a complete understanding of Objects . Namespaces etc and think I'm pretty close.I've created A basic Vehicles class and a car class that inherits Vehicle.Through user input I've created several cars and displayed the information in a listview.My question is what is the best way to store my cars (don't say garage!) so that if a user clicks on the associated entry on the list box that they can then alter that specific instance.
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Dec 15, 2008
writing a program which stores and uses information on oil pipelines. I have a number of worldwide sites, which each have a number of pipelines. Each pipeline has a number of segments, and each segment has a number of properties like flow rate, temperature, pressure etc. There are also going to be a number of cases, so the temperature of a segment in case 1 might be different to case 2.
What is the best way to set this up in terms of objects and references? I�ve done a fair bit or reading about arrays, collections, classes and think there are a number of ways to �skin this cat�For example, if I wanted to reference the temperature in case 1, of segment 3, in pipeline 4, at worldwide site number 3, then can I do something with a load of objects and collections like the following?
site(3).pipeline(4).segment(3).case(1).temperature.value
Is it possible to have an object heirarchy, where an object has a parent object, and both objects have their own attributes and fields?
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Jan 28, 2011
I want to know the correct way to access an object that is stored as an object in another object...phew. Here is what I'm trying to do...
I'm creating a restaurant map and to keep things simple I have 3 classes -- cServer, cTable and cGuest. cTable has a property which should contain a cServer object eg
Public Property Server() As Object
'Called when the property is read
Get
[Code].....
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Aug 31, 2011
point me to the best way to store persistant objects ( of my own class) in a vb application? I am putting together a simple family recipe application and have created a food item class. I would like to store the instances ( food items) indefinately so that they are there each time I start the program complete with all properties and meethods
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Oct 15, 2011
In a program I've been working on I would like to start a process and save it in a variable of type Process. This is so I can kill it later, if needed, and change the window type.
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Jan 23, 2010
I have 5 proxies, 2 of them are standard and 3 of them requires a username and password.
Im using a webbrowser control. Can anyone point me to the right direction as to what codes i need to implement for both standard proxies and the ones that have user names and passwords?
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Mar 25, 2010
How can I create and manipulate Objects on form with my vb code?By that i don't mean toggling the visibility.
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Dec 5, 2011
make objects from the ToolBox using code instead of changing existing objects invisible then visible later?
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Oct 31, 2010
I am trying to access objects created at run time.The following code works IF Options Strict is off. If it is on it indicates "Option Strict On disallows implicit conversions from 'System.Windows.Forms.Control' to 'System.Windows.Forms.TextBox'."
Option Strict Off
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim txt As TextBox = Me.Controls("T3")
[code]....
I am having trouble formulating the type conversion.A Second problem I am having occurs when I create a groupbox at runtime and then add the textboxes to the groupbox. I am having trouble drilling down to gain access to the textboxes inside the groupbox.
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Aug 21, 2009
As I learn more about programming, I've discovered that I'd like to occassionally save bits of code for either later use or scrutiny.I was considering just pasting it into Word, but that seems inefficient when it comes to finding it later.
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Mar 23, 2010
I'm creating an application in Visual Basic 08 for a friends company, and im trying to store a unique reference number after it being entered in the textbox.I've been messing about with classes, objects and arrays but can't get it right so far
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Feb 7, 2010
I have a user control that inherits the FW ListView and I need to dispose of two objects when the form's disposing of it's objects. Here's what I've concluded already, am I on the right track?
[Code]...
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Mar 15, 2012
code that stores the images in a local folder n not in database.also i want to rename the image with autonumber.
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Nov 29, 2010
note, this is homework. It's not worth much, but i really need to learn how to store things in arrays. my biggest confusion is that i have no idea how to store something in an array, have the program run again andcontinuouslybuild the array andthen display the array in its current state (by like clicking a display poll button) and then still allow it to build more once more data is entered.Here's the whole assignment. I don't really understand how to start it and the problem above is my biggest frustration!ite a Visual Basic application that can be used to determine the best Super Bowl commercial. The choices are as follows: Budweiser, FedEx, E*Trade, and Pepsi. The application should allow for the user to enter a voter's name, gender and select a commercial from a list.
Create a Vote structure that will contain the voter's first name, last name, gender and the selected commercial. Each time a vote is entered, the information should be added to an array of Vote structures.Provide the ability to save your data to a sequential access file. The program should also be able to read an existing file of vote data into an your array of Vote structures. Doing so, should eliminate any data that may have already been in the array.
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Dec 14, 2009
can anyone show me samples or guide me to do a pop-up calendar after I click a button. The pop-up calendar is for the user to select their date of birth, so I would like it to customize the calendar also. And for my website I have master page, so I can't add javascript at the <head> section right?
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Nov 1, 2010
I have a page that includes javascript which I only want to run under certain conditions. To do this I have placed the scripts into an asp: placeholder.This actually seems to work but when I run a debug on the page I get the following warning.Element 'placeholder' is not a known element. This can occur if there is a compilation error in the Web site, or the web.config file is missing.If I move the placeholders into the body of the page the warning goes, but that means I'm left with scripts in the body which I also want to avoid. Does anyone have any hints on the best practice for this scenario? [code]
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Nov 14, 2009
im having quite a lot of trouble trying to import data to sql from a csv. I am trying to do this via oledb 4.0
[Code]...
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Oct 6, 2011
I am trying to create a graph that changes every second and just shows a 3 second history. In my head it would make sense to tie it into the T variable (Time in seconds), so I have form1 outputting T to a text box on form2 and then everytime that textbox changes it graphs the new chart.
The reason I am doing the step ladder approach is because I wanted the numbers to appear under the points as they travel. does this make any sense at all, or am I completely off base?
[Code]...
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Nov 24, 2011
I have a server making a head request to a database dump I've created. The remote server does this to make sure that it's not using excessive bandwidth when not necessary.However, due to some other circumstances outside my control this causes the script to be hit twice: once for the head request, and then another time to download the data.
What I'd like is to have the script I've written detect the head request, send back a couple of headers (e.g. last modified is right now, filesize different than before), and exit. Is there a way to do this?
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Dec 26, 2011
I have a server making a head request to a database dump I've created. The remote server does this to make sure that it's not using excessive bandwidth when not necessary.However, due to some other circumstances outside my control this causes the script to be hit twice: once for the head request, and then another time to download the data.
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Mar 11, 2010
The below function has to be put within my common functions file in app_code folder. how do I do it?It gives error like this:Reference to a non-shared member requires an object reference
Public Sub setHeadTags(ByVal title As String, ByVal description As String, ByVal keywords As String)
Dim metaDescription As HtmlMeta = DirectCast(Page.Master.FindControl("metaDescription"),
[code].....
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Jun 9, 2011
I would like to add the following meta tag below but do it dynamically when the page loads so that in case we do not need to add it we will not. <meta property="example" content="example" />This is in VB.Net with Visual Studio 2008.
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Jan 13, 2011
I'm trying to use head.js in my master page, and unfortunately. I can't seem to get the syntax down as I need to use ResolveUrl. Here's what I have:
head.js("<%= ResolveUrl("~/js/jquery-1.4.2.min.js") %>","<%=
ResolveUrl("~/js/jquery.jstree.min.js") %>");
Any suggestions? This doesn't work. By "doesn't work", I mean that the head.js call doesn't recognize the quotations I'm using. It isn't loading the files basically because I have some sort of incorrect syntax that the VS 2010 isn't telling me.
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Jan 9, 2010
Dont even know how to word this, reason I'm having so much trouble finding out the answer in help.But, basicly I'm trying to get data from many different text boxes named similar from my form, example:[code]where i would count up in a for and next statment from like 1 to what ever.
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May 26, 2009
I want to make pictureboxes move from the top of the screen to the bottom of the screen (easy) when they reach the bottom I want them to cease to exist (do-able). But i want to create new ones that keep coming from the top. create an endless amount of pictureboxes while running the program?
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Dec 29, 2010
Can we use Content place holder within the head section of a master page?
For example :
<head runat="server">
<title>Untitled Page</title>
<asp:ContentPlaceHolder id="ContentPlaceHolder2" runat="server">
</asp:ContentPlaceHolder>
<link href="StyleSheet.css" rel="stylesheet" type="text/css" />
</head>
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Jul 27, 2011
I want to copy the different objects of a tabpage into another tabpage while running the application(using a button click), but that those objectshave the same code as their references, so they work exactly as their references.
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Dec 7, 2011
I'm struggling with unit testing in my website.So far I have the NUnit framework imported with;[code]How do I call in objects from the other class with all my code to test?If anyone could give me an example of how to test textbox validation,
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Feb 23, 2012
I've written a for loop to generate several new text boxes and numericUpDowns when the application is run.
The text boxes / numericUpDowns are generated with a 2-dimensional array. My question is: How do I handle when the text boxes / numericUpDowns are modified?
If you would like the code, just request it and I'll add it here.
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Jan 12, 2012
is there any way to keep data stored in an application retrieved from web references like we get data [items] invoked in a listbox from web references and then after publishing it when once exe. is run the data is invoked or retrieved from web references. so that when next time once again exe. is run the retrieved data will be there instead of waiting services to get data.
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