Category: signalR

SameId – skip

In the previous post I have show how two users can see each other if they are editing the same product ( in my example , product id 5)

But not in all cases the users should be notified about each other – like in , let’s say, view product Id 5.

In this case we have an attribute to apply to the action [SameIdSkip]

A video will show you :

Same object edited by 2 users–proactively notifying users

This is a practical example about how two users that comes on the same page will be notified one about other( after an idea of Adrian Petcu) . See the picture :


With the NuGet package you can install in your application in this steps:

To run :
1. install package from Nuget
2. in Filter.Config add following line:  filters.Add(new SameIdAlert.SameIdFilter());
3. In Route.Config, after
GlobalHost.DependencyResolver.Register(typeof(IAssemblyLocator) ,() => new SameIdAlert.SameIdAssemblyLocator());
4. In the View that you want the user to be notified add the following lines in the @section scripts{
<!–Script references. –>
<!–The jQuery library is required and is referenced by default in _Layout.cshtml. –>
<!–Reference the SignalR library. –>
<script src=”~/Scripts/jquery.signalR-1.1.3.js”></script>  <!–or whatever signalr library version you have –>
<!–Reference the autogenerated SignalR hub script. –>
<script src=”~/signalr/hubs”></script>
<!–SignalR script to update the chat page and send messages.–>

and somewhere:


5. In _Layout  move jquery declaration

before RenderBody

6. If you decide to put into _Layout and you want to skip an action, please put  [SameIdSkipAttribute] to the action

7. If you want more action parameters than the default id , just put
[SameIdAttribute(“parameter name 1″,”parameter name2”)
to the action
8. If you decide that you want just several actions then modify
filters.Add(new SameIdAlert.SameIdFilter(false));
and put
View online at

Source code at

NuGet package at

Video demo at

If you want to help me, see the issues that can be solved here: