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c# Programming Glossary: hashcodeIs it possible to combine hash codes for private members to generate a new hash code? http://stackoverflow.com/questions/1079192/is-it-possible-to-combine-hash-codes-for-private-members-to-generate-a-new-hash MD5 or just use the string representation of this int c# hashcode gethashcode share improve this question The fundamentals.. use the string representation of this int c# hashcode gethashcode share improve this question The fundamentals pointed out..
Really simple short string compression http://stackoverflow.com/questions/1192732/really-simple-short-string-compression original URL somewhere database text file ... alongside a hashcode of the non domain part MD5 is fine . You can then have a simple..
Why can't I retrieve an item from a HashSet without enumeration? http://stackoverflow.com/questions/1494812/why-cant-i-retrieve-an-item-from-a-hashset-without-enumeration I am using an immutable reference type with overridden hashcode equals etc to emulate a value type in C#. Let's say the type..
How do I generate a hashcode from a byte array in c# http://stackoverflow.com/questions/16340/how-do-i-generate-a-hashcode-from-a-byte-array-in-c-sharp do I generate a hashcode from a byte array in c# Say I have an object that stores a.. byte array and I want to be able to efficiently generate a hashcode for it. I've used the cryptographic hash functions for this.. oneway and I don't care about that I'm just using the hashcode as a key into a hashtable . Here's what I have today struct..
Compare two DataTables to determine rows in one but not the other http://stackoverflow.com/questions/164144/compare-two-datatables-to-determine-rows-in-one-but-not-the-other through table 1 and for each row stick it's ID or computed hashcode or some other unique ID for that row into a dictionary or hashtable.. . Run through table 2 and for each row see if the ID or hashcode etc is present in the dictionary. You're exploiting the fact..
Converting System.Decimal to System.Guid http://stackoverflow.com/questions/3563830/converting-system-decimal-to-system-guid different decimal numbers used only 2 two different hashcodes. Decimal is represented as 16 bytes. Just like Guid But the.. int int int length 100000 for int i 0 i length i int hashcode d.GetHashCode int n if hashcount.TryGetValue hashcode out n.. int hashcode d.GetHashCode int n if hashcount.TryGetValue hashcode out n hashcount hashcode n 1 else hashcount.Add hashcode..
Why is it important to override GetHashCode when Equals method is overridden? http://stackoverflow.com/questions/371328/why-is-it-important-to-override-gethashcode-when-equals-method-is-overridden Why is it important to override GetHashCode c# override hashcode share improve this question Yes it is important if your item..
Why is ValueType.GetHashCode() implemented like it is? http://stackoverflow.com/questions/3841602/why-is-valuetype-gethashcode-implemented-like-it-is From ValueType.cs Action Our algorithm for returning the hashcode is a little bit complex. We look for the first non static field.. We look for the first non static field and get it's hashcode. If the type has no non static fields we return the hashcode.. If the type has no non static fields we return the hashcode of the type. We can't take the hashcode of a static member because..
http://stackoverflow.com/questions/462451/gethashcode-guidelines-in-c-sharp types in .NET and they didn't behave like this. c# .net hashcode share improve this question The answer is mostly it is a..
How do I create a HashCode in .net (c#) for a string that is safe to store in a database? http://stackoverflow.com/questions/5154970/how-do-i-create-a-hashcode-in-net-c-for-a-string-that-is-safe-to-store-in-a left this bug in software I have written c# .net database hashcode gethashcode share improve this question It depends what.. in software I have written c# .net database hashcode gethashcode share improve this question It depends what properties you..
How to check if two Expression<Func<T, bool>> are the same [duplicate] http://stackoverflow.com/questions/673205/how-to-check-if-two-expressionfunct-bool-are-the-same for equality and HashCodeCalculation to compute a hashcode from an Expression. It all involves visiting the expression..
http://stackoverflow.com/questions/750947/net-unique-object-identifier o is new If some address equal o already seen c# unique hashcode gethashcode share improve this question The reference is.. some address equal o already seen c# unique hashcode gethashcode share improve this question The reference is the unique..
http://stackoverflow.com/questions/1447055/wpf-multibinding-fails-why DataItem null target element is 'SolidColorBrush' HashCode 17654054 target property is 'Color' type 'Color' System.Windows.Data.. DataItem null target element is 'SolidColorBrush' HashCode 17654054 target property is 'Color' type 'Color' So let's simplify.. DataItem null target element is 'SolidColorBrush' HashCode 52727599 target property is 'Color' type 'Color' We see that..
Why can't I retrieve an item from a HashSet without enumeration? http://stackoverflow.com/questions/1494812/why-cant-i-retrieve-an-item-from-a-hashset-without-enumeration sealed class X object A object B object extra public int HashCode return A.hashCode B.hashCode public bool Equals X obj return..
http://stackoverflow.com/questions/2912340/c-sharp-hashcode-builder HashCode Builder I used to use the apache hashcode builder a lot Does.. obj.Length i object val obj i res val null i ulong val.GetHashCode 1 2 i return int uint res ^ res 32 Using such a helper is quick..
using XAML to bind to a System.Drawing.Image into a System.Windows.Image control http://stackoverflow.com/questions/3427034/using-xaml-to-bind-to-a-system-drawing-image-into-a-system-windows-image-control BindingExpression Path Image DataItem 'RealElement' HashCode 54308798 target element is 'Image' Name '' target property is..
practical applications of bitwise operations [closed] http://stackoverflow.com/questions/3883384/practical-applications-of-bitwise-operations on a regular basis in C# is when I have to calculate a HashCode for my type which is a composite type. Like class Person string.. FirstName string LastName int Age public int override GetHashCode return FirstName null 0 FirstName.GetHashCode ^ LastName null.. override GetHashCode return FirstName null 0 FirstName.GetHashCode ^ LastName null 0 LastName.GetHashCode ^ Age.GetHashCode share..
ReaderWriterLockSlim vs. Monitor http://stackoverflow.com/questions/407238/readerwriterlockslim-vs-monitor TKey TValue and distributes that insertions by the HashCode of the key to the invidual sub dictionaries. With 16 sub dictionaries..
How do I create a HashCode in .net (c#) for a string that is safe to store in a database? http://stackoverflow.com/questions/5154970/how-do-i-create-a-hashcode-in-net-c-for-a-string-that-is-safe-to-store-in-a do I create a HashCode in .net c# for a string that is safe to store in a database.. in a database To quote from Guidelines and rules for GetHashCode by Eric Lippert Rule Consumers of GetHashCode cannot rely upon.. rules for GetHashCode by Eric Lippert Rule Consumers of GetHashCode cannot rely upon it being stable over time or across appdomains..
How to hide wpf datagrid columns depending on a property http://stackoverflow.com/questions/6857780/how-to-hide-wpf-datagrid-columns-depending-on-a-property DataItem null target element is 'DataGridTextColumn' HashCode 44856655 target property is 'Visibility' type 'Visibility' What..
DataGridTextColumn Visibility Binding http://stackoverflow.com/questions/8847661/datagridtextcolumn-visibility-binding DataItem null target element is 'DataGridTextColumn' HashCode 48860040 target property is 'Visibility' type 'Visibility' Is..
What's the best way to create a short hash, similiar to what tiny Url does? http://stackoverflow.com/questions/1116860/whats-the-best-way-to-create-a-short-hash-similiar-to-what-tiny-url-does and then to an 8 characters long string. Like so string hashCode String.Format 0 X sourceString.GetHashCode More on that http..
what is hashCode use for? is it unique? http://stackoverflow.com/questions/7425142/what-is-hashcode-use-for-is-it-unique is hashCode use for is it unique I notice there is a getHashCode method.. items is unique. Can you help explain to me what is hashCode and getHashCode use for c# windows phone 7 share improve..
http://stackoverflow.com/questions/750947/net-unique-object-identifier can quite easily get the same hash code Hashtable hashCodesSeen new Hashtable LinkedList object l new LinkedList object.. This does not make any difference though l.AddFirst o int hashCode o.GetHashCode n if hashCodesSeen.ContainsKey hashCode Same.. though l.AddFirst o int hashCode o.GetHashCode n if hashCodesSeen.ContainsKey hashCode Same hashCode seen twice for DIFFERENT..
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