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c# Programming Glossary: sequenceWhen to use .First and when to use .FirstOrDefault with LINQ? http://stackoverflow.com/questions/1024559/when-to-use-first-and-when-to-use-firstordefault-with-linq question I would use First when I know or expect the sequence to have at least one element. In other words when it is an exceptional.. other words when it is an exceptional occurence when the sequence is empty. Use FirstOrDefault when you know that you will need.. an element or not. In other words when it is legal for the sequence to be empty. You should not rely on exception handling for the..
http://stackoverflow.com/questions/1101841/linq-how-to-perform-max-on-a-property-of-all-objects-in-a-collection-and-ret first element with that value is O n but iterates over the sequence twice. Where possible you should use LINQ in a single pass fashion...
C# : Why doesn't 'ref' and 'out' support polymorphism? http://stackoverflow.com/questions/1207144/c-sharp-why-doesnt-ref-and-out-support-polymorphism to n before it reads something from n. That permits this sequence of events Declare a field x of type Animal. Pass x as an out..
C# Reading a File Line By Line http://stackoverflow.com/questions/1271225/c-sharp-reading-a-file-line-by-line then you have ReadFrom ... as a lazily evaluated sequence without buffering perfect for Where etc. Note that if you use..
Random.Next returns always the same values http://stackoverflow.com/questions/1654887/random-next-returns-always-the-same-values close in time they will all be seeded with the same random sequence. Create a single Random object and pass its reference to the..
Can I show file copy progress using FileInfo.CopyTo() in .NET? http://stackoverflow.com/questions/187768/can-i-show-file-copy-progress-using-fileinfo-copyto-in-net the current file being copied the current file number sequence the total number of files to be copied and the percentage completed..
http://stackoverflow.com/questions/204505/preserving-order-with-linq for each element of source selector is invoked and a sequence of values is returned. Union When the object returned by this..
How do you convert a DataTable into a generic list? http://stackoverflow.com/questions/208532/how-do-you-convert-a-datatable-into-a-generic-list DataRow you can call Enumerable.ToList IEnumerable DataRow sequence dt.AsEnumerable or List DataRow list dt.AsEnumerable .ToList..
What do two question marks together mean in C#? http://stackoverflow.com/questions/446835/what-do-two-question-marks-together-mean-in-c to the right. Note that you can use any number of these in sequence. The following statement will assign the first non null Answer#..
Is BCrypt a good hashing algorithm to use in C#? Where can I find it? http://stackoverflow.com/questions/481160/is-bcrypt-a-good-hashing-algorithm-to-use-in-c-where-can-i-find-it Hashing The act of taking a string and producing a sequence of characters that cannot be reverted to the original string... as 'encryption' The act of taking a string and producing a sequence of characters that can be reverted to the original string. Rainbow..
How do I make a WinForms app go Full Screen http://stackoverflow.com/questions/505167/how-do-i-make-a-winforms-app-go-full-screen last two lines the Taskbar remains visible. I think the sequence of these actions will be hard to control with the properties..
What's the @ in front of a string in C#? http://stackoverflow.com/questions/556133/whats-the-in-front-of-a-string-in-c the string that would normally be interpreted as an escape sequence is ignored. So C Users Rich is the same as @ C Users Rich share..
Pre & post increment operator behavior in C, C++, Java, & C# http://stackoverflow.com/questions/6457130/pre-post-increment-operator-behavior-in-c-c-java-c-sharp
What's the difference between IEnumerable and Array, IList and List? http://stackoverflow.com/questions/764748/whats-the-difference-between-ienumerable-and-array-ilist-and-list only minimal iterable functionality. You can traverse the sequence but that's about it. This has disadvantages for example it is.. too for example an IEnumerable could be an endless sequence like the sequence of primes. Array is a fixed size collection.. an IEnumerable could be an endless sequence like the sequence of primes. Array is a fixed size collection with random access..
Why is The Iteration Variable in a C# foreach statement read-only? http://stackoverflow.com/questions/776430/why-is-the-iteration-variable-in-a-c-sharp-foreach-statement-read-only iterator. It represents the current element of the looping sequence. Assigning a value to it breaks the Single Responsibility Principle..
http://stackoverflow.com/questions/786383/c-sharp-events-and-thread-safety can be certain that OnTheEvent will not run... The actual sequence might be this mixture Copy the event delegate before checking..
Decrypting with private key from .pem file in c# with .NET crypto library http://stackoverflow.com/questions/1162504/decrypting-with-private-key-from-pem-file-in-c-sharp-with-net-crypto-library data read as little endian order actual data order for Sequence is 30 81 binr.ReadByte advance 1 byte else if twobytes 0x8230..
Sequence contains no elements? http://stackoverflow.com/questions/1324199/sequence-contains-no-elements contains no elements I'm currently using a single query in.. to put data in to the text boxes but it returns an error Sequence contains no elements when used to retrieve the row in order..
http://stackoverflow.com/questions/1660106/block-controlaltdelete the user interface to logon requests the Secure Action Sequence event. The main logon request is the ctrl alt delete response...
Understanding Linq To Xml - Descendants return no results http://stackoverflow.com/questions/2338512/understanding-linq-to-xml-descendants-return-no-results has a Node called TransactionInformationType witch is a Sequence and I simple want to get all and retrieve the only 2 variables..
What's the fastest way to bulk insert a lot of data in SQL Server (C# client) http://stackoverflow.com/questions/24200/whats-the-fastest-way-to-bulk-insert-a-lot-of-data-in-sql-server-c-client BulkData ContainerId int NOT NULL BinId smallint NOT NULL Sequence smallint NOT NULL ItemId int NOT NULL Left smallint NOT NULL.. PRIMARY KEY CLUSTERED ContainerIdId ASC BinId ASC Sequence ASC I'm inserting data in chunks that average about 300 rows.. ContainerId and BinId are constant in each chunk and the Sequence value is 0 n and the values are pre sorted based on the primary..
InvokeMember(“click”) webBrowser help http://stackoverflow.com/questions/2654442/invokememberclick-webbrowser-help inputControls.First x x.Name Accept My script give me an Sequence contains no matching element error at the HtmlElement submitButton..
Reading a C/C++ data structure in C# from a byte array http://stackoverflow.com/questions/2871/reading-a-c-c-data-structure-in-c-sharp-from-a-byte-array Name 8 UInt32 User CHAR Location 8 UInt32 TimeStamp UInt32 Sequence CHAR Tracking 16 CHAR Filler 12 And would fill something like.. MarshalAs UnmanagedType.U4 FieldOffset 24 public uint Sequence MarshalAs UnmanagedType.ByValTStr SizeConst 16 FieldOffset 28..
Parse Complex WSDL Parameter Information http://stackoverflow.com/questions/4452724/parse-complex-wsdl-parameter-information particle schemaComplexType.Particle XmlSchemaSequence sequence particle as XmlSchemaSequence if sequence null .. XmlSchemaSequence sequence particle as XmlSchemaSequence if sequence null foreach XmlSchemaElement childElement in.. void OutputElements XmlSchemaParticle particle XmlSchemaSequence sequence particle as XmlSchemaSequence XmlSchemaChoice choice..
Using MySQLConnection in C# does not close properly http://stackoverflow.com/questions/5567097/using-mysqlconnection-in-c-sharp-does-not-close-properly db.DataReader SELECT FROM module WHERE Active 1 ORDER BY Sequence ASC foreach MySqlDataReader result in db.DataReader SELECT FROM.. db.DataReader SELECT FROM module WHERE Active 1 ORDER BY Sequence ASC Do stuff here The class Database manager opens the connection.. db.DataReader SELECT FROM module WHERE Active 1 ORDER BY Sequence ASC ... And I changed the DataReader method public IEnumerable..
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