VS 2010 Create A Collection Containing 5 Highest Instances
Oct 12, 2011
I have a problem that can be best solved with LINQ. I have a class that has 2 properties of which 1 is a single. I have a collection of that class and I need to select the instance with the highest single value.[code]I'm having a hard time explaining this even this is a simple task. Please ask if you don't understand.In addition to my original question, How would I create a collection containing the 5 highest Instances.
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Nov 11, 2010
I am wanting to make a collection of form instances.I was wondering if the arrayList is a list of pointers (or references) to items added or if a new instance of an object is placed when using the add method.
i.e. if I had: Public Shared forms as Arraylist = new Arraylist Then if I called forms.add me from an instance of a form would it create a pointer or reference to the instance or generate a whole new one?
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May 22, 2010
I want to create some type of list or collection. Each item on this list or collection will need contain A string name and a integer value. Something like
[Code]...
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Jun 17, 2012
I am a beginner on Visual Basic but was able to create the 'skeleton' of the application I need to build. Basically, it is an application dedicated to keeping a check on the vinyl I have. When I buy a new record, I want to effectively 'Add New Record' on Visual Basic and be greeted with a page consisting of various forms such as 'Artist' and Title'. Once these are filled in, I want to click 'Enter' and for all that information to be converted to one of the pages within my application.
Here's an easier look at it...
There are LPs that have 10" and 12" sections.
There are singles that have 7" and 12" sections.
In the 'Add New Record' page I want to also have a drop down list with the above elements in, once 12" LP is selected and all the other forms are filled in and I click 'Enter' - I want the application to send it to the 12" LP section of the application.
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May 16, 2012
I have a file which has numeric values like [code]What would be the best way to display the highest number in a textbox +1?I have the following coding but to be honest it just keeps showing random numbers in the textbox.[code]Also what would you be the best way to append to the file? I have the following coding to append to the last line.[code]
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Jun 2, 2011
I have 5 numbers, each ranging from 0 to 100. Each number changes from time to time. I have to sort them as highest first and smallest last. How would i do it?
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May 1, 2011
The below Code is written inside the Timer Tick event. It works fine as long as the Time and Date are not same. When the Time and Date are same it only displays 1 message. How can I show multiple message for the same date and Time ? I think this can be done If I create different instances for a form. But I don't know how many same time and Date will be there in the database. So I can't do that.
Dim frm As New frmMessage
Dim nowDate As String = String.Format("{0:M/d/yyyy}", DateTime.Now)
Dim nowTime As String = String.Format("{0:h:mm tt}", DateTime.Now)
[Code]....
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Feb 6, 2011
I am able to create internet explorer instance by using SHDocVw.InternetExplorer, how to create instances for google chrome / mozilla fire fox / opera browsers.
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Jun 14, 2010
I am using the following code to create new instances of a form
Dim nfMainForm as New frmMainForm
nfMainForm .Show()
And when I open multiple instances of the form then I need to reference controls on specific instanced of the Form then I dont know how. i.e. I need something like
nfMainForm(0).lblFullName.Text
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Jan 21, 2010
I have a program with 3 forms; each has a different role behind them. Form 1 loads when the program executes and the other 2 load by clicking on buttons from form 1. I would like to implement a multithreaded approach where even after clicking on form2 and form 3 I can still execute other form 1 options while form2 and form 3 contents execute. I read through some tutorials and still not to sure how to implement. I figured I need to create instances of the forms 2 and 3 but how to call the threads and control them? I did try a simple one and had some error concerning delegates.
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Jun 26, 2009
In VB.net we are creating different namespace level classes. For Example, DynamicPDF - Root NameSpace Test ,Report are two sub folders in side the sub folders some classes.
[Code]...
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Nov 3, 2011
I am trying to create a new instance of a form if its not allready been created the only problem is is that the instance creation is inside a worker thread.[code]...
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Sep 22, 2010
I'm working on a program that uses a COM Object exposed by a .dll. The .dll has a known bug, though, where it acts very erratically when more than one instance of the object is created under one .dll, resulting in crashes or corrupted data a large part of the time. I'm curious if there is some way I can load another instance of the .dll itself, then create another instance of the object without having to need a new process for every instance.
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Jan 24, 2012
I'm a little out of my comfort zone here having programmed in VB6 quite a few years ago things have changed a lot since then.My issue is I have a class that I've built which works with no issues but I would like to be able to keep a 'handle' of some description on this class so I can also make adjustments to it's parameters when the user changes something. My problem is that I need to do this for an unknown quantity of these class instances.
In the VB.Net language how would I create an instance of this class that could be accessed by any Sub within the application and each instance created can be individually accessed by specifying some sort of identifier?
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Jul 31, 2011
I'm creating a twitter account manager using the Twitter API. I have multiple accounts, over 10 of them. I want to automate all 10 of these accounts to do certain things, now the way I started to code the program was so that it would accommodate only one account, and all the codes worked perfectly and were managed by individual timers for individual processes that I wanted done. i could tweet between certain intervals, follow people who tweet certain things without me being on top of it.
Now the problem is that I've been trying to create new instances of subs that I've already created so that I dont have to create 10 new subs with the exact same procedures. I'm pretty sure it's impossible to create copies of subs dynamically or within a loop but it didn't stop me from trying. So question is how can I edit a program that was designed to accommodate and automate only one account, to potentially accommodate over a 100? I don't need codes or anything I need ideas so I can try them, but right now I'm completely blank.
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Sep 24, 2011
How would I go about counting the number of times a given query occurs inside of a text file using LINQ?I need to search through the attached file and see how many justices were appointed by each president, and then create a new text file displaying the following:
presName, justiceCounter 'president name ordered by first name, number of justices appointed
I pretty much get how to do everything except for keeping an accurate counter within the LINQ query. However, I do feel confused about the order in which I should write this code, as in where I should keep my counter for how many justices a given president has appointed.
My output is displaying like this:
Abraham Lincoln,111
Abraham Lincoln,111
Abraham Lincoln,111
[code]....
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Jun 6, 2012
I'm trying to code to run 2 instances of the same client at the same time.Using a simple form with a button with system.dyecnostic.process.start(program path) to run the instance to start with.Now the problem starts with trying to run a second it just loads and closes and sends me to the first. how to negate this so I can get 2+ of the clients up?
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Oct 12, 2011
I am just getting started with VB.NET - what I couldn't find in my book is whether a new instance of an object with the same variable-name will delete the previously stored values - or will that somehow remain in memory?This is the scenario:
I open a data file and load the contents in 'Dim var As New dataObject'what happens when I again open another file and the same line is encountered:Dim var As New dataObject'
Hope the question is clear p.s. the dataObject is a simple structure with a bunch of variables in it - nothing fancy.
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Jun 23, 2010
Like i have. Dim MainWindow as new Classic.
But i have another i need to Access.
Is there a Way. Ive Tried and Tried. But i can't find a Way to Load another.
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Nov 13, 2010
txtSubject1Info.SelectionStart = txtSubject1Info.Find("Hey!")
I am finding specific words in the RichTextBox (in this case, "Hey!") and selecting them by getting their initial position through the "Find" command. Unfortunately, this does not work when I have multiple instances of "Hey!" in the RichTextBox. Here's an example:
Text in RichTextBox:
Hey! This is cool!
The Find command would return a value of 0 in this case. However, let's take a look at another scenario:
Text in RichTextBox:
In this case, the Find command would return a value of 0 again, but I want it to get the initial position of the second "Hey!" statement. I'm wondering how I can do this.
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Mar 1, 2012
I am using a message queue successfully as I am testing while I am writing a new program. (This is my first time using a message queue.) I have to have multiple instances of my program running, so I was wondering if this would be a problem with the queue? I have tested it and it looks fine, but I didn't know if it is by coincidence, or if the queues were separate.
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Jan 25, 2012
I'm trying to figure out a way to sort the entries of a listbox... but in a different way instead of the obvious one (sorted property). First of all, I need to explain how the items are populated at first:
[Code]...
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Sep 16, 2009
Is there a way to create a collection of collections? e.g. I created a collection ListOf(Lines) After I add all my lines to it, I want to store this colleciton in another listOf(Collections). The reason I want to do this is because i want to create several separate collections of lines and I'll need to loop through them all to look for a certain line and I thought this would be a good approach if it's possible.
[Code]...
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Jul 14, 2009
I have class called "Employee" and I have a class called Department. They have an association. I need to create a colleciton of employees with the creation of a Departmant. I know how to do with using "private" member _AllMyEmployees. But I need to expose this private member using properties. therefore how do i covert thsi private member to a property? [code]
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Sep 17, 2010
I have a TabControl object on my form with many tabs created in code (TabPages) and my problem is that the same objects that are in the initial TabPage needs to be in the other TabPages created in code, I have this done in code when the user clicks the 'New Tab' menu option, however the same code is used for any new tabs created. The problem created here is that I have an event against one of the objects that appear in the other TabPages, but because the same code is used to create any new tab pages, the event will only work on the newest tab page, if that makes sense? By the way these objects that appear on the other TabPages are properties at the top so events can be handled against them in the respective subroutine.
[Code]...
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Oct 17, 2008
Working on a project that tests up to 16 PC boards. The test routines are on a a backgroundworker thread. I want each PC board to perform the test routine on its own thread, so I would need up to 16 backgroundworkers.How do I go by doing this? Do I put 16 Backgroundworkers on the form? I tried to do it programmatically but I can't declare an array of backgroundworkers because withevents variables can't be typed as arrays. I guess I just need a kick in the right direction.
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Feb 20, 2011
I have an issues creating Collections with Schedules, it creates the Collection, but it does not update membership as the schedule is blank [code]...
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Nov 18, 2010
I have a collection of objects in vb.NET. Each object has two different IDs, lets call them ID1 and ID2.
I need to be able to quickly find a specific object in the collection based on one of these IDs. In some cases I have ID1 and in other cases I have ID2. I'm currently using the Collection data structure with ID1 as the key, but that doesn't help me when I need to find an object using ID2.
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Mar 18, 2011
I'm writing a program that takes all files and directories on a computer and puts them in a collection, where I add a collection to the Collection for a directory with the key being the name of it and a string containing the Name for a file under the collections added I do the same,
[Code]...
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Jan 24, 2010
How could I create something like a TreeViews' Node collection? I'm really not sure what to search for in this case.Presumably, you have something like an array of TreeNodes, and then the NodeCollection class implements IEnumerable, is that correct?
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