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List vs LinkedList User 665828-Jul-07 4:48 User 6658 28-Jul-07 4:48  Hi everybody I'm wondering why many articles and tutorials suggest using a List<T>, while in theory (and practice) a LinkedList<T> should be both faster and more flexible. I did some tests and found out that a LinkedList<T>.AddLast(T) is faster than a List<T>.Add(T) up to about 50.000 items. What's the advantages and disadvantages of both lists? regards modified 12-Sep-18 21:01pm. Re: List&lt;T&gt; vs LinkedList&lt;T&gt; Urs Enzler28-Jul-07 4:54 Urs Enzler 28-Jul-07 4:54  LinkedList: every item knwos its successor and its precessor, start end end of list are directly accessible. List: more or less a "fixed" size array Some consequences: Adding to LinkedList (at the end is) as moving the next or previous item are simple opperations and therefore fast. The List has to be grown to fit all items. Accessing an item at a specific position is faster in List. In LinkedList the chain of items has to be followed. Maybe there are some optimizations included that I'm unaware of, so if you know better, let me know -^-^-^-^-^- no risk no funk Re: List&lt;T&gt; vs LinkedList&lt;T&gt; User 665828-Jul-07 5:12 User 6658 28-Jul-07 5:12  Looks like a LinkedList doesn't even have an indexer or a GetAt(index) method, unless I'm missing something. You'd need to iterate over all items and stop at the desired one. regards modified 12-Sep-18 21:01pm. Re: List vs LinkedList Guffa28-Jul-07 5:59 Guffa 28-Jul-07 5:59  In a LinkedList, each item is contained in a LinkedListNode object. The node contains references to the previous and next nodes, and to the list. Including the two references that every object instance contains, it's an overhead of 20 bytes (on a 32 bit system). In a List, there is no overhead per item, only the overhead of allocated but unused entries. So, storing 1000 bytes in a List uses 1024 bytes, but storing them in a LinkedList uses (at least) 24000 bytes. --- single minded; short sighted; long gone; Re: List vs LinkedList User 665828-Jul-07 8:26 User 6658 28-Jul-07 8:26  Okay, I guess for most of my purposes a normal List will be fine then. regards modified 12-Sep-18 21:01pm. how get the mouse location foxch28-Jul-07 4:05 foxch 28-Jul-07 4:05  hi i want to get the mouse location when the mouse enter the control.i override the MouseEnter Event--protected override void OnMouseEnter(EventArgs e),but the parameter of this functon is EventArgs.can not get the location of mouse.in this condition how can i get the mouse location?? thank you .. Re: how get the mouse location User 665828-Jul-07 4:45 User 6658 28-Jul-07 4:45  You can use Cursor.Position regards modified 12-Sep-18 21:01pm. Re: how get the mouse location foxch28-Jul-07 5:03 foxch 28-Jul-07 5:03  thank you for you answer but i use this can't get what i want. if i write "Point p = Cursor.Position",the p is the location of the control or the form who contain the control. i devide a control into three partions, mouse enter each partion i give him a different cursor style ,how can i do this. thank you! Re: how get the mouse location Luc Pattyn28-Jul-07 5:10 Luc Pattyn 28-Jul-07 5:10  Cursor.Position or Control.MousePosition both give screen position convert back to position inside myControl using myControl.PointToClient() You do realize there is a thing called documentation ? see MSDN either inside Visual Studio or on the web. Luc Pattyn try { [Search CP Articles] [Search CP Forums] [Forum Guidelines] [My Articles] } catch { [Google] } Re: how get the mouse location Thomas Stockwell28-Jul-07 14:34 Thomas Stockwell 28-Jul-07 14:34  Look into the GetCursorPos API command of Windows. Do a quick search on MSDN. Regards, Thomas Stockwell Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning. Visit my homepage Oracle Studios[^] Getting installed browser user agents in a Windows Forms program Domenic Denicola28-Jul-07 2:55 Domenic Denicola 28-Jul-07 2:55  I have a Windows Forms program, written in C#. Not a ASP.NET web page. And I'd like to get the value of the Firefox and Internet Explorer user agents, if this is at all possible. Any ideas? -Domenic Denicola- [CPUA 0x1337] “I was born human. But this was an accident of fate—a condition merely of time and place. I believe it's something we have the power to change…” Re: Getting installed browser user agents in a Windows Forms program ekynox28-Jul-07 17:42 ekynox 28-Jul-07 17:42  Have you tried the link below: http://www.google.com/search?lr=&ie=UTF-8&oe=UTF-8&q=Internet%20Explorer%20user%20agent The first hit should solve your problem. Re: Getting installed browser user agents in a Windows Forms program Domenic Denicola29-Jul-07 8:10 Domenic Denicola 29-Jul-07 8:10  I indeed saw that page and others like it. The problem is that the registry only stores those values if the user has changed his/her user agent. If the user has left it as default, then it's unknown what the user agent is, as those keys don't exist. I guess I could have fun reconstructing the user agent string from the user's platform, browser version (which shouldn't be too hard to find), and then those add-on strings which I think are stored in the registry (.NET CLR etc.) -Domenic Denicola- [CPUA 0x1337] “I was born human. But this was an accident of fate—a condition merely of time and place. I believe it's something we have the power to change…” Asychronous call to URL behind the scene without redirecting to the page Amvir28-Jul-07 2:38 Amvir 28-Jul-07 2:38  Hello There, I have technical problem in with web project. I'm trying to pass form data (hidden fields) to a url without redirecting to the page. In other words, lets suppose my web project has 2 files 1.aspx and 2.aspx. A user submits a form on 1.aspx and the page navigates to 2.aspx. But before navigating to 2.aspx I'm validating the user inputted data. After the validation I need pass the status of validation(Valid or Invalid data) to an external url lets suppose http://somewebsite.com/3.aspx. The posting of data to http://somewebsite.com/3.aspx has to happen asyncronously behind the scene so that user navigates from 1.aspx to 2.aspx. Could anyone please help me...any reference to any articles will be of great help. Thanks! Amit. Re: Asychronous call to URL behind the scene without redirecting to the page ne0h28-Jul-07 4:48 ne0h 28-Jul-07 4:48  Use AJAX dude. -------------------------------- txtSignature how deployee c#.net desktop application [modified] hk7792128-Jul-07 2:28 hk77921 28-Jul-07 2:28  hi Frnds i want to deployee c#.net desktop application on client machine. i am using ms access as database. can any one suggest me what is the process of deployement. Thanks in advance -- modified at 8:52 Saturday 28th July, 2007 Vicky Re: how deployee c#.net desktop application Kevin McFarlane28-Jul-07 3:05 Kevin McFarlane 28-Jul-07 3:05  There's a deployment Wizard in Visual Studio, so have a look at that. There's also ClickOnce deployment as an alternative. Kevin Hey, a question XFighter28-Jul-07 1:43 XFighter 28-Jul-07 1:43  I've recently finished a c# book(I had a background with c++, but never made anything 'real' myself) Currently I have an idea for a little program but I need it to be able to automatically open a website, write something in its search engine and download the first result. Whilst concept wise I think I know how I can open a website(using some BCL). Also, I know how to make it 'search' for it only by giving a url + the keyword of the search integrated there, is there a better way? and the most important question, how can I get it to automatically download it? (using a software I make the user specify) Re: Hey, a question Colin Angus Mackay28-Jul-07 3:33 Colin Angus Mackay 28-Jul-07 3:33  It sounds like you want to take a look at the HttpWebRequest[^] class. Upcoming events: * Glasgow: Mock Objects, SQL Server CLR Integration, Reporting Services, db4o, Dependency Injection with Spring ... "I wouldn't say boo to a goose. I'm not a coward, I just realise that it would be largely pointless." My website coding guidelines question thepersonof28-Jul-07 0:48 thepersonof 28-Jul-07 0:48  hey I have a property: int MyProperty{<br /> get{return myProperty;}<br /> } When we ran FXCop it threw up: Info : "Do not use names that require case sensitivity for uniqueness. Components must be fully usable from both case-sensitive and case-insensitive languages. Since case-insensitive languages cannot distinguish between two names within the same context that differ only by case, components must avoid this situation." So what should I rename myProperty? cheers Re: coding guidelines question Luc Pattyn28-Jul-07 0:56 Luc Pattyn 28-Jul-07 0:56  Hi, I do this all the time, but only in specific situations; i.e. the local variable is declared private, and the property is either protected or public. And I do not intend on changing that. How else would you come up with two different but related names (don't give me the underscore stuff, such as _myProperty or m_myProperty, I don't like it at all, it lowers the readability of the code). Did you add those different qualifiers when trying? If myProperty and MyProperty both were to have the same access rights (which is private if you dont specify), then I would agree with FxCop. Luc Pattyn try { [Search CP Articles] [Search CP Forums] [Forum Guidelines] [My Articles] } catch { [Google] } Re: coding guidelines question User 665828-Jul-07 2:30 User 6658 28-Jul-07 2:30  I do it the same. Which .NET language is actually case insesitive? regards modified 12-Sep-18 21:01pm. Re: coding guidelines question Luc Pattyn28-Jul-07 2:34 Luc Pattyn 28-Jul-07 2:34  I dont know, and I would be surprised if any of the major ones would be case-insensitve. I read all languages but on CLR I only speak C# I do know a lot of "cross-linkers" (I am an embedded guy actually) are either case-insensitive or have a switch to let the user choose. Luc Pattyn try { [Search CP Articles] [Search CP Forums] [Forum Guidelines] [My Articles] } catch { [Google] } Re: coding guidelines question Kevin McFarlane28-Jul-07 3:03 Kevin McFarlane 28-Jul-07 3:03  Visual Basic, Eiffel for starters. However, FxCop should really only be objecting about public identifiers that differ only by case. It shouldn't really object to the original example and I would disable that rule. Kevin Re: coding guidelines question PhilDanger30-Jul-07 3:07 PhilDanger 30-Jul-07 3:07  Luc Pattyn wrote: (don't give me the underscore stuff, such as _myProperty or m_myProperty, I don't like it at all, it lowers the readability of the code). Just my opinion, but I rather like the m_propertyName way of doing it. With a quick glance in a function you can tell whether or not the code is operating on a member or a local, and also groups them all together in Intellisense so you can easily search through your member variables.

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