Get Clarification About GetCurrentProcess In .NET?

Mar 16, 2012

When this grabs the current process, the "current" process is the one that called this function, right? I.E., the process that is requesting this information is the current process, correct? For example, if the process that is running this piece of code right now has a pid of 1, the Process object returned by this function will tell me it has a pid of 1, correct? I cannot possibly get any other process, correct?

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Clarification About Which Datatype To Use

Feb 2, 2011

I'm using SQL Server 2008 and Visual Studio 2008 with .NET Framework 3.5. I'm teaching myself and this my first time posting a question here. And I was wondering if someone could clarify something for me.I've created a table called Classes. One of the columns is called Enrolled and is of data type tinyint (0 to 255) since the class will never have more than 50 students enrolled.In my application I created an object called ClassInfo and declared a private variable ..private _classAmt as byteMy question is this..What if someone wants a total of students enrolled for that year? Do I need to convert to a larger data type such as int32 or would it be better to set the data type as Integer in t

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WPF Clarification On Using Controls?

Jan 21, 2009

I am inclined to delve into it in the near future just to get a taste of it. I am looking into converting my single form Chat program to its WPF equivalent. The form that I am currently using have a RichTextbox control in it, I am not sure how WPF works but do I need to design a Richtextbox control using XAML/XML or just the specification on where it should be located?

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.net - ByRef Vs ByVal Clarification?

Dec 8, 2010

I've read a lot on this, but am having a hard time thinking through this tonight. (Maybe it's the hydrocodone... just had a root canal. i'm just starting on a class to handle client connections to a TCP server. Here is the code I've written thus far:

[Code]...

Now, on my Socket property, when setting the value, it is required to be ByVal. It is my understanding that the instance in memory is copied, and this new instance is passed to value, and my code sets _Socket to reference this instance in memory. Yes?

If this is true, then I can't see why I would want to use properties for anything but native types. I'd imagine there can be quite a performance hit if copying class instances with lots of members. Also, for this code in particular, I'd imagine a copied socket instance wouldn't really work, but I haven't tested it yet.

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Clarification For WithEvents Handlers

Feb 11, 2010

When you declare an object 'WithEvents' and then utilize the "Handles" clause at the end of your event methods, how does Visual Basic manage a reference change for the object? In other words, if the withevents var is set to ObjectA, then later I switch it to ObjectB (or nothing), does Visual Basic automatically both remove those handler methods from ObjectA, and attach them to ObjectB? Or do I still have a ObjectA's events being handled behind the scenes?

I ask this because if instead you use AddHandler for an object, and then switch your reference, unless you removed the handler before switching, your original object is still handled (at least I'm pretty sure that's how it works).

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Clarification On Form Process?

Nov 1, 2010

I have a button that when clicked, creates an instance of a new form and assigns a value to .tag. I have the following code:

Private Sub btnNew_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnNew.Click
If Me.Tag = "NBI" Then
Dim NBIForm As New frmNewNBI

[code]....

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VS 2008 Syntax Clarification If Not (x And Y) =?

Sep 9, 2009

I would need some clarification on a syntax : could someone tell me why some people in their code use the following :

If Not (xxx And yyy) = 0 Then
'code
End if

instead of

If xxx = true Then
'code
End if

As an exemple : In a code I use for a listview Item Ownerdraw, it sure works like this :

If Not (e.State And ListViewItemStates.Selected) = 0 Then
' draw the listview item code
End If

but not like this :

If e.State = ListViewItemStates.Selected Then
'
End If

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Quick Clarification About When Have To Remove Handlers In .Net

Aug 6, 2010

If I have a class with a couple of event handlers inside of it which are attached to an object that is defined within the class, am I right in thinking that I don't need to implement IDisposable to remove said handlers, even if I explicitly added the handlers myself? Also, can anyone point me in the direction of an article that explains the scope of when it is needed to remove handlers to avoid memory leaks. (I've tried searching many times but I must be screwing up my search terms.)I have a collection; every time an object is added to that collection, I add a handler to a change event of the object.When I'm done with the collection, do I need to go through each item and remove the handler before setting the reference to null?

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"Creating Own File Type" Clarification?

Mar 13, 2012

Okay, I was doing a lot of research this morning and found what I hope to be a promising example (code and installation file in the zip folder I downloaded). Even though it is from 2005, and I am working with 2010.I had to update/upgrade the entire project to view the code, and... ok, I am just rambling.I know how to set the filters for SaveDialog and OpenDialog (took me a long while to understand, but I now understand it), but when I finish and build the project to host it on CNet Download or somewhere similar.

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