Compare two class object instances to see if the variables are different

Question

User-1982615125 posted

for example, i have two object instances of the same Customer Class.

one is an updated version of the other, and i want to check if anything has changed. to prevent unnecesary IO operations and to not save it when its not different. because every save costs 7 milliseconds. saving 10.000 models would be taking 1 minute 10 seconds.

so can i see if they are different without checking each variable field?

For example, what does this do? or is this what im looking for? and has this unwanted side effects?

If Custumer1 = customer2

End if

Answer 1

User1120430333 posted

so can i see if they are different without checking each variable field?

https://msdn.microsoft.com/en-us/library/bsc2ak47(v=vs.110).aspx

Answer 2

User1724605321 posted

Hi fazioliamboina ,

You should use Equals to check for equality (overriding object.Equals as necessary) and implement IEquatable<T> as well to provide slightly better performance :

https://stackoverflow.com/questions/8400028/comparing-two-instances-of-a-class 

Best Regards,

Nan Yu