C# - Implement Your Own Sorting Algorithm?
Apr 29, 2011
Forgive me if this is a silly question....but I think back to my Comp. Sci. classes and I distinctly remember learning/being quizzed on several sorting algorithms and the corresponding 'Big O' notation.
Outside of the classroom though, I've never actually written code to sort. When I get results from a database, I use 'Order By'. Otherwise, I use a collection class that implements a sort. I have implemented IComparable to allow sorting; but I've never gone beyond that.Was sorting always just an academic pursuit for those of us who don't implement languages/frameworks? Or is it just that modern languages running on modern hardware make it a trivial detail to worry about?
Finally, when I call .Sort on a List(Of String), for example, what sort algorithm is being used under the hood?
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Jun 8, 2009
I am trying to implement an Algorithm called "Diamond-Square Algorithm" I am having trouble ending it so that it retiurns the required result. So far I have the folloiwng.
[Code]...
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Jan 10, 2010
i want to implement bankers algorithm in vb.net how can i implement it
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Aug 22, 2009
implement the huffman decoding algorithm
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Aug 30, 2011
implement an algorithm to drag-and-drop a picturebox in my form. For example, what Windows does when i want to drag and drop files (or folders) on my desktop.
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Oct 5, 2009
I have created several reports without an issue. Though if I use interactive sorting with a report that has 2 fields in the document map properties under edit details group like the following : =Fields!FirstName.Value &" " & Fields!LastName.Valueeverthing populates as it should when I open up the report.If I click the sort button on the repoprt I recieve the following error : An error occured during local report processing. An error occured during report processing. An Internal error occurred on the report server. See the error log for more details. I would like to sort the fields in the report.If I have 1 field in the document map properties there are no issues.
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Mar 12, 2012
I'm having my program sort an excel sheet by a few columns. However, it is only sorting by the first column not the rest that I specify.ere is my sort code below:
myRange.Sort(Key1:=myRange.Range("A:A"), Order1:=XlSortOrder.xlAscending, Key2:=myRange.Range("G:G"), Order2:=XlSortOrder.xlAscending, Header:=XlYesNoGuess.xlYes, Orientation:=XlSortOrientation.xlSortColumns)
[code]...
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Aug 20, 2011
I have a WPF ObservableCollection which is bound to a ListBox and I have a Sort() method which when called will convert the ObservableCollection to a List(Of T), and undertakes a sort based on a date/time column within the collection.
The data is sorted, even when new items are added to the ObservableCollection, however the date/time isn't being correctly sorted. The data is sorting based on the date however it is very much random when it comes to the time portion. The following is an example of the outcomes I am experiencing:
[Code]...
Is there anything that I am doing incorrectly in this method that would cause the time portion not be included in the sort? Is there a better way of doing a sort?
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Apr 14, 2010
I'll do my best to explain what the algorithm is supposed to do:There's a class 'Recipe'.ach Recipe can include other Recipes but cannot include itself or any other Recipe that includes it. So, a simple example is we have just two Recipes A & B.A,B,C(1) Recipe C Adds B(2) Recipe B Adds A(3) Recipe attempts to add C, but can't because of the relationship. C- B - A.
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Sep 8, 2010
I'm Micah. Electrical/Electronic engineering 500 level student. I'm working on my final year project. please i need a code for the implementation of RSA algorithm in VB.NET. your assistance will be appreciated.
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Dec 26, 2009
is the algorithm for VB editor released anywhere? because i'm trying to create my own editor that gives various options like Linking and self defined array functions (see below) such that one edit can update several others in various places, but i do still wish to have the auto formatting VB editor provides us with.an example of a self defined array function (count):we can transform this:
Public Class test
Private Shared number_of_methods As Integer = 2
Public Function get_number_of_methods_juz_an_example() As Integer
Return number_of_methods
[code]....
well of course instead of the code it would be just click and select (i wrote out the code in <> just to show what's happening)
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Mar 15, 2012
i need some tutorial to implement BLS (Boneh-Lynn-Shacham) signature algorithm to create private key and public key to encrypt a message.I need tutorial to implement this in VB.NET.
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Oct 21, 2005
I found an algorithm in C# that I need to convert to C. Problem is, I have never used C# so the syntax is really strange to me.
Implementation of Berlekamp-Massey algorithm for calculating linear complexity of binary sequence
s = byte array with binary sequence
returns Length of LFSR with smallest length which generates s
[Code].....
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Dec 14, 2010
I want create my own algorithm
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Aug 21, 2009
How would I be able to use my own Encryption Algorithm in my program such as encrypting text. I havn't been able to figure this out.
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Aug 25, 2007
can you write an algorithm which can calculate 500 factorial.scientific symbol(mode) is unauthorized.Answer should be in String mode.
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Apr 29, 2009
I am using VB.NET and I am trying to come up with some algorithm or some pseudo-code, or some VB.NET code that will let me do the following (hopefully I can explain this well):I have 2 collection objects, Cob1 and Cob2. These collection objects store objects that implement an interface called ICob. ICob has 3 properties. A boolean IsSelected property, a property called Length, which returns a TimeSpan, and a Rating property, which is a short integer.
OK, now Cob1 has about 100 objects stored in the collection and Cob2 is an empty collection. What I want to do is select objects from Cob1 and copy them over to Cob2. I want the following rules obeyed when selecting the objects though:
[Code]...
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Nov 20, 2009
[code...]
So far, my friend has this, and we're trying to figure out how to get the code to tell convert F to C, and back. All we can use for input is (example:) 10,f and it will change it to 40,C.
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May 30, 2011
I'm trying to convert the following algorithm from C# to VB.NET and the VB.NET I have is not producing the same results as my C# algorithm, can someone tell me where I've gone wrong in my conversion?
public static IEnumerable<T[]> Combinations<T>(this IEnumerable<T> elements, int k)
{
List<T[]> result = new List<T[]>();
[code]....
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Oct 17, 2011
I need to encrypt vbs file using a cryptographic algorithm. I read about converting it into vbe file, but is there any other way to do it?
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Mar 17, 2011
I have visual studio 2008, and we have been given specific tasks to carry our for our course, we have been asked to implement euclid's algorithm by using a while loop, doing so without the visual part of visual basic whatever that means an example of a question they gave was 1)HCF(88,26)=2 how I would go about doing this, as I am thoroughly confused, and deadlines are fast approaching.
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Sep 9, 2010
I have some text files that contain
<img width="100" or
<img width="1400" or....
How could i replace all above with the following, since the image width is not static?
<img width="200"
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May 8, 2012
i am working on project of using ant colony optimization and espcially on antnet algorithm but i have many problems in programming of this algorithm, and since i dont perfer using simulation for that purpose.
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Jul 20, 2011
I am struggling to write a sorting algorithm that can sort characters in a word lexicographically (alphabetically) as follows
lexicographical sort of the word :- Contamination
lexicographically
Sorted Text Index
[code]....
write a pseudo code / or an implementation in C# or VB.NET of how I can do a lexicographical sort of the word above?
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Nov 7, 2010
I am trying to pair numbers, like for a tournament. I need an idea for the algorithm to pair up the numbers, not the code, but the algorithm.
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May 16, 2010
Searching the internet for an example of backtracking in VB.Net has proven fruitless. All the examples I found were either in a language I don't understand (making it impossible for me to convert it to vb.net) or they contained zero commenting (making it difficult to actually understand what is going on).Does anyone have an example of backtracking in VB.Net? Commenting would be useful so I don't have to decipher single letter variables.
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Jan 27, 2010
I am currently developing a advanced web browser in Visual Studio 2008. I was reading information about a browser i currently use, it said that the browser goes faster thanks to a "advanced cache algorithm". I was wondering if it was possible to implement this into my web browser, and if so how would i do so? I am using Visual Studio 2008 writing in .Net.
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Jan 21, 2010
which algorithm used for voice compression mailing and decompression
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Feb 5, 2011
I have decided to use a flood fill algorithm for my application, using this pseudo-code from Wikipedia:Flood-fill (node, target-color, replacement-color):
1. Set Q to the empty queue.
2. If the color of node is not equal to target-color, return.
3. Add node to Q.
4. For each element n of Q:
5. If the color of n is equal to target-color:
6. Set w and e equal to n.
7. Move w to the west until the color of the node to the west of w no longer matches target-color.
8. Move e to the east until the color of the node to the east of e no longer matches target-color.
9. Set the color of nodes between w and e to replacement-color.
10. For each node n between w and e:
11. If the color of the node to the north of n is target-color, add that node to Q.If the color of the node to the south of n is target-color, add that node to Q.
12. Continue looping until Q is exhausted.
13. Return.
I was doing alright, until I hit the "continue looping until Q is exhausted".I don't quite get that.
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Jan 13, 2009
I am looking for a way to find the moving average for customers over a 30 day period. However I was not able to find any sample VB code to help get me started. I did find this C# sample on Code Project but my attempts at conversion have not been successfull.
Does anybody have an existing VB class they would like to share or do you know of a sample that I could use to build my own?
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