Olrix developer

60 Euler Problems Solved

2011-03-28T23:25:00.001+01:00

subj and countingRank #31 in Ireland:)

New stream

2011-01-26T09:48:00.002Z

Hey, I am working on my first WP7 application these days.First one will be very simple - it is just to get a try of the market place. Simplest I could think about - a list of irregular verb. Design is ready and I am loading it with the data.

New Year Resolution: Disconnecting

2011-01-13T09:58:00.003Z

I was deeply impressed yesterday after I listened Disconnect chapter of ThisDeveloperLife. I decided to give up one of social network that eats 5-7 hours of my life every week. Lets stick to this!

Back to Zimmermann

2010-11-23T23:35:00.002Z

I did some research on the problem. Yes, previous solutions was mine (apart of permutation generation algorithm). This time I research the problem itself. It is known as Reverse Shuffle Problem and it goes back into 1973. I found math article. 20 pages, It is half in English and half in Greek symbols. Gash! I haven't seen so many math since university!It gave me push and I think I can a little

Me on Al Zimmermann's Programming Contests

2010-11-22T09:53:00.002Z

I am taking part in Al Zimmermann Contest Task is complicated because of number of combinations. It is N! and task should be sold for 25 sets for primes from 2 to 97.Since problem was published on Nov 16 I attacked task from different angles. I optimized code and changed algorithm. Number of n! is huge. Computation power available to me cracks up to 200M combinations per second. 200 millions

2010-07-17T17:32:00.003+01:00

Solved next Euler task! It is relatively simple brutal force solution but on big numbers. It took me longer than expected... My own BigNumber class fails somehow on division operation. Found two new bugs in it! have then fixed. All unit-tests were green and are even more green than ever, but solution is incorrect.Eventually moved to System.Numerics.BigInteger (thanks .net4). Bingo!NB: Need to

20 done

2009-10-11T21:52:00.004+01:00

20 problems solved! Now I have routines that can add, subtract, multiply, divide and even get factorial of really big numbers.

2009-06-05T11:01:00.002+01:00

Ages ago I created a structure of nested master pages for a web-site I working on.It works fine. Not without teething glitches, but it works.Today I noticed warnings in a build.We have Page_Load in each masterpage and it warns about the fact one hides another...Searching for best practice samples I found this article.

2009-05-28T16:02:00.001+01:00

TextBoxWatermarkExtender

2009-05-26T12:25:00.002+01:00

swoopo.com - funny gameList.Find(Predicate) - usage with lambdaTypeMock and asp.net - when and how we are going to test it?TeamCity and its build server - isn't it just department of Microsoft?Ford Mondeo 05, 2l, 70kmiles

2009-05-19T17:39:00.001+01:00

It is good to know

<\div> and

are different

2009-05-14T11:49:00.002+01:00

how pass delegate as a parameterhow asp Button serve OnCommand eventpair of tags for bullets ul and lilots of Citroen C4 reviews

when *.designer.cs is out of sync

2009-01-05T21:59:00.002Z

In asp.net every page or control has three parts:asp markup part (*.aspx, *.ascx) - that is where you build a structure of you web page or control;*.cs - that is where you put your code behind*.design.cs - that is werd side which suppose to be controlled by IDE (Visual Studio), it contains all identities of every control on your page.It happens, it happens too often to me that *.desing.cs file

rollback a changeset and shelve it

2008-10-24T17:36:00.005+01:00

A little bit of history. I commit a changeset a while ago. A client doesn't want to see it in next release. So I like to extract my changes, but save it for future. Yep, my code in TFS.There is no right-click-command to rollback changes. But! There is tfpt rollback from power tool. You need to run "tfpt rollback /changeset:N "from the source folder. This will take all latest from the server then

Magic ~

2008-07-07T17:36:00.003+01:00

When you need a local path for your web service or aspx path you may exercise Server.MapPath("~") to get a folder or Page.ResolvePath(@"~/image/"). The key symbol is ~ which is translated to a local path.Enjoy .net responsive!

2008-07-03T09:22:00.003+01:00

Who noticed the world has flipped over:"registration fee that's already the lowest in the industry - and we charge in U.S. DOLLARS!" "Use the dollar to your advantage and get the most from your IT budget."The fact that dollar loosed its positions presented as an advantage...

2008-06-24T15:31:00.002+01:00

Tricks with Flex compiler:1) "120" + 30 = "12030"and if you pass this to function with int parameter it will receive 12030 as integer. No warnings given.2) Alert.show("Warning: " + + message);appears as "Implicit coercion of a value of type String to an unrelated type Number

Nine Things Developers Want More Than Money

2008-05-31T08:43:00.003+01:00

Very good article. I can sign every paragraph.

2008-05-19T18:40:00.003+01:00

I installed DiffMerge from SourceGear. I like how it highlights changes in a part of expression. But sometimes it go mad and starts showing rainbow of similar symbols in two methods. I need probably show a snapshot of best example. I am trying to use it as merge tool and it not simple to set command line for it. But thanks Turn on more accessible mode

2008-05-12T14:41:00.001+01:00

That was really lucky day - I won €20!

Lucky day!

2008-05-09T18:45:00.002+01:00

Hey! I won something!I won a ringtone which my mobile cannot play - it is amr file.It is strange Friday. I didn't change anything in a framework, instead I had 1.5 hour conference call and fixed 3 bugs.

2008-05-09T13:44:00.002+01:00

You might think: - No, it is NTFS - No, hard drive is just 1 year old - No, it is Vista and it has been tested for ages - No, I always check in as soon as it is readyBut, it happened on Monday. When the deadline was on Friday and you need to finished and ship it "yesterday". Source folder with sources not check in for 2 working days reported corrupted and not accessible. Go change you pants and

SOAP header between flex client and .net web server

2008-04-11T16:44:00.003+01:00

There is no day without invention.Seems to be a simple code, but I manage to kill two hours to make it work.This helps. Don't bother chinese. It just works.

LINQ to SQL readings

2008-04-10T17:20:00.003+01:00

Still under impression after LINQ to SQL session from IMTC.The first thoughts are: wow it is quick and easy;code is generated for me for nice visual toolfull way from database to LINQ interface and classes is available to use out of box To the end of session I remembered TDD and scratched my head with how apply this to it. Also I've samples of ugly t-sql generated - SQL Profiler is you friend

2008-02-22T17:42:00.003Z

Today I meet interesting problem.I have an XmlDocument and do a lot of manipulations with elements. It appears that when I do element.SelectNodes(xpath) and in xpath I have something like //value it does search in whole document and not in the element itself.Surprised and confused. After all what I done in xml to find this bugfeature.

2008-02-19T15:51:00.002Z

When focus goes away from visibility Flex doesn't scroll automatically. This helps.And to selected and display the very last item in a grid use myGrid.scrollToIndex(data.length);

2008-02-15T17:44:00.001Z

Reading about Visioning of Database also (Scripting Database from Command Line)

2008-02-04T16:49:00.000Z

If you need to handle sorting on Date type column in DataGrid (in Flex) don't do that. It is much easier to do this.As "not now" solution you may set sortable="false"

Global.asax is big!

2008-01-30T17:11:00.000Z

You know, this Global.asax is pretty important file. You would not believe how my Flex-.NetWebservice application reacted when I decided to deleted it from test site.It works until exception happens. And then exception corrupted and Flash Player shows crazy Stream IO errorTypeError: Error #1010: A term is undefined and has no properties. at Forms.Login::LoginPanel/onWebServiceFailure() at

2008-01-17T18:26:00.000Z

The worst ever technical documentation is probably Ibex Xml2Pdf.Description is very sophisticated (~100 types of elements and endless number of attributes)There is no error on mistyping an attribute or its value - it is just ignored.Today the battle was to centre and set a width of svg image in a table cell.Do not use width attribute as everywhere in documentation and examples - use content-width

2008-01-07T18:38:00.000Z

Spent two hours playing with IIS 6 helping to add second web server to IIS.I wish I read a book about it.Load data Questionnaire still doesn't work. Designing and designing from different sides and no result. One day left.The audio books comes up as a great structured and very well professionally recorded with music and other back sounds. No need to cut into small pieces. Burnt dvd for

test

2008-01-04T09:38:00.000Z

This is test post from email. Oleg KalenbetSoftware Developer

second attempt

2008-01-04T09:26:00.000Z

I am glad to return to this blog. I registered it back in 2004 and then it was forgotten. An idea to write blog professional blog in English start bothering me couple months ago. When I put professional, I mean about my professional interests.I am lucky today - I found it and managed to gain access back.Would expect much activity here. My plan is two posts per month.See you soon.

2004-05-26T12:38:00.000+01:00

Today I read that google provides invitations to GMail beta-testing throught Blogger. I remembered that I registered there while ago, so try to check it out. On mine blogger - nothing. I decided to create some activity on the page. Will see.

2004-01-21T12:33:00.000Z

"?????????" - ?????? ?? ?????????, ??????, ????? ? ?????? ?? ??????? Ребята использовали мою фотографию, для материалов в газете - прикольно