Cascading IEquatable(Of T)

Posted by Shimmy on Stack Overflow See other posts from Stack Overflow or by Shimmy
Published on 2010-03-14T05:56:38Z Indexed on 2010/03/14 6:05 UTC
Read the original article Hit count: 345

Filed under:

iequatable

|

generic

|

cascading

Hello!

I have several entities I need to make IEquatable(Of TEntity) respectively.

I want them first to check equality between EntityId, then if both are zero, should check regarding to other properties, for example same contact names, same phone number etc.

How is this done?

© Stack Overflow or respective owner

Related posts about iequatable

C# dictionary uniqueness for sibling classes using IEquatable<T>

as seen on Stack Overflow - Search for 'Stack Overflow'
I would like to store insances of two classes in a dictionary structure and use IEquatable to determine uniqueness of these instances. Both of these classes share an (abstract) base class. Consider the following classes: abstract class Foo { ... } class SubFoo1 : Foo { ... } class SubFoo2… >>> More
How to implement IEquatable<T> when mutable fields are part of the equality - Problem with GetHashCo

as seen on Stack Overflow - Search for 'Stack Overflow'
Hello! I am using Entity Framework in my application. I implemented with the partial class of an entity the IEquatable<T> interface: Partial Class Address : Implements IEquatable(Of Address) 'Other part generated Public Overloads Function Equals(ByVal other As Address) As Boolean _ … >>> More
Cascading IEquatable(Of T)

as seen on Stack Overflow - Search for 'Stack Overflow'
Hello! I have several entities I need to make IEquatable(Of TEntity) respectively. I want them first to check equality between EntityId, then if both are zero, should check regarding to other properties, for example same contact names, same phone number etc. How is this done? >>> More
What's the difference between IEquatable and just overriding Object.Equals() ?

as seen on Stack Overflow - Search for 'Stack Overflow'
I want my Food class to be able to test whenever it is equal to another class. I will later use it against a List, and I want to use its List.Contains() method. Should I implement IEquatable or just override Object.Equals()? From MSDN: This method determines equality by using the default equality… >>> More
GetHashCode on null fields?

as seen on Stack Overflow - Search for 'Stack Overflow'
How do I deal with null fields in GetHashCode function? Module Module1 Sub Main() Dim c As New Contact Dim hash = c.GetHashCode End Sub Public Class Contact : Implements IEquatable(Of Contact) Public Name As String Public Address As String Public Overloads Function Equals(ByVal… >>> More

Related posts about generic

kernel module compiling error

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
sh@ubuntu:/home/ccpp/helloworld$ make gcc-4.6 -O2 -DMODULE -D_KERNEL_ -W -Wall -Wstrict-prototypes -Wmissing-prototypes -isystem /lib/modules/`uname -r`/build/include -c -o hello-1.o hello-1.c hello-1.c:4:0: warning: "MODULE" redefined [enabled by default] <command-line>:0:0: note: this is… >>> More
vmware network installation problem

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
After installation from vmware_bunddle it shows network device error during configuration(First run). Log File: 2012-04-03T20:01:24.881+06:00| vthread-3| I120: Log for VMware Workstation pid=5766 version=8.0.2 build=build-591240 option=Release 2012-04-03T20:01:24.881+06:00| vthread-3| I120: The… >>> More
Linux Kernel not upgraded (from Ubuntu 12.04 to 12.10) - can't remove old kernels and can't install new apps

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
Question: How do I remove old kernel images which refuse to be removed? Context: Yesterday I upgraded Ubuntu from 12.04 to 12.10. However, the linux kernel has not upgraded from 3.2 to 3.5 as I would have expected. $ uname -r 3.2.0-32-generic $ uname -a Linux tony-b 3.2.0-32-generic #51-Ubuntu… >>> More
No sound after video card replaced (AMD Radeon HD 7770)

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
Issue: no sound System: Dual boot Windows 7 (sda) Ubuntu 12.04 (sdb) 2 harddrives Dell XPS 730 Video card: AMD Radeo HD 7770 Diamond Multimedia Sound card: Creative Labs SB X-Fi Additional info: My sound used to work. Then, my old video card (NVIDIA geforce 280) died. I bought and… >>> More
How do I free up more space in /boot?

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
My /boot partition is nearly full and I get a warning every time I reboot my system. I already deleted old kernel packages (linux-headers...), actually I did that to install a newer kernel version that came with the automatic updates. After installing that new version, the partition is nearly full… >>> More