Prevent Concurrency Conflicts about aspnetboilerplate

[hikalkan]

Hi,

I agree that concurrency conflicts is an important topic. Let me write my opinions:

First of all, there is no restriction in ABP to use the techniquies described in given link. You can do with EF whatever you can do with it without using ASP.NET Boilerplate.

The point is that: It's a little hard thing to implement concurrency as described in given link. Also, it requires similar works for all entity types. Can ASP.NET Boilerplate provide a common and easy way for that? Yes, it can :) Is it a feature of an application framework? Yes, I think. When? I don't know, we should plan it. How? We can discuss it here for different approaches. It may be like that:

We can define an interface (like IHasConcurrency) that defines a RowVersion property as like in the article. Then, rest is done by ABP like that:

• While an IHasConcurrency entity is being updated/deleted, if EF throws a DbUpdateConcurrencyException then ABP handles it, rollbacks transaction and return an appropriate error message to the client.
• In the client side, ABP handles these types of errors, shows it to the user and maybe allows a way of refreshing the entity in the screen.

What's your opinion?

[tom177y]

+1. Hope this can become a feature enahancement.

[codemonkey21]

I agree that this interface is the way to go. I was originally planning on creating my own interface for it, but wasn't sure if it would conflict with the deeper levels of ABP which is why I suggested it here. I like your suggestions.

[yuanjingxp]

EF provider ConcurrencyCheck Attribute control esignates that a property participates in optimistic concurrency checks.

https://msdn.microsoft.com/zh-cn/library/system.componentmodel.dataannotations.concurrencycheckattribute(VS.95).aspx

[mhascak]

+1

[natiki]

+1

[brunobertechini]

+1

[pantonis]

+1

[Cuiqs76]

+1

[tom177y]

This is the English link:

https://msdn.microsoft.com/en-us/library/system.componentmodel.dataannotations.concurrencycheckattribute(VS.95).aspx

[maharatha]

Any idea when we can expect this to implemented in ABP