Awkward Coder

 After much banging my head against the internet here is a canonical example of how to configure SQL Server permissions, roles to get SqlDependency working in a .Net app. This is for sceneario where the identity running the .Net code is running as a configured user account with the db_datareader & db_datawriter. -- Create Schema User CREATE USER sql_dependency_schema_owner WITHOUT LOGIN; GO -- Create Schema for SqlDependency objects CREATE SCHEMA sql_dependency AUTHORIZATION sql_dependency_schema_owner; GO -- Create Role for users of [sql_dependency] CREATE ROLE sql_dependency_user; GO -- Grant role permissions GRANT CONTROL ON SCHEMA::sql_dependency TO sql_dependency_user; GRANT IMPERSONATE ON USER::sql_dependency_schema_owner TO sql_dependency_user; GRANT CREATE PROCEDURE TO sql_dependency_user; GRANT CREATE QUEUE TO sql_dependency_user; GRANT CREATE SERVICE TO sql_dependency_user; GRANT REFERENCES ON CONTRACT::[http://schemas.microsoft.com/SQL/Notifications/PostQueryNotificatio

Simple easy to read code is the building blocks for complex applications, and to this end, the is how I now start all desktop apps (written in XAML / WPF). This is nothing new (and not original) but it's been refined & destilled down to a point of simpliclity :) Single line written once and forgotten about... Need to add Exception handling - write it in a Module... Need to add Heartbeat monitoring - write it in a Module... Using DI - do it in a Module... Startup XAML - guess what, done in a Module... Want only one instance of the app - do it in a Module... So lifting from my updated Simple.Wpf.Template on gitHub , I have the following set of Modules defined - this forms the basis for all apps I'm asked to develop for clients: The complexity is hidden away in the ModuleLoader class, simple put this scans & loads any type with the ModuleConfigurationAttribute, orders the Modules according to the properties of the Attribute and dynamically invokes the Modules. Check out th

Looking to eek-out as much perf as I can from some code (C#) at work, and looking at all the .ToString() manipulations in the code and I came across the following: How can I quickly workout if I want to do something around this? BenchmarkDotNet to the rescue, and this library really does make benchmarking easy (and fun!). I created an overload of the extension method which internally uses a cache to avoid the repeative ToString() calls: Only small issue was wanting to test a Static methods, and this only involved creating a wrapper class with annotated methods(calling the static implementations), also preloaded the internal cache: Results below, make-of-it what you will...

In my continuing (point-less) mission to avoid using anything related to MS Prism - a quick implementation of an EventAggregator using Rx - took about 5 minutes to write for a problem I currently have, normally try and avoid using such a pattern as it can lead the scattering of business logic which can hard to 'follow' when refactoring / re-visting code. Trying to kepp the interace as simple and obvious as possible (symetric design) - this will be injected by the container: Simple base event class, not thing special at the moment, might add a timestamp in the future, but more likely to do that with Rx on the event stream using the apply named Timestamp method: Included a simplifed Schedulers wrapper - idea being you can get any of the Rx Schedulers in one place, and importantly makes unit testing easier: Show me the money...

I wanted a quick diagnostics page in html / js and this included grid to show server logs, decided to use slickGrid . All pretty easy to use apart from one thing - last column to fill remaining space... Nothing in their examples, so here's one for posterity... Not sure if it's the preferred way, but it works - the most obivous issue for is doing a DOM search to get the Viewport element - this is tightly coupled to the current latest release. Stuck the implmentation in a Class and not provided any logic for creating Data, Columns or other grid optnios / plugins - tried to keep it simple...

How to implement IAuthorizationRequirement for SignalR in Asp.Net Core v5.0 Been battling this for a couple of days, and eventually ended up raising an issue on Asp.Net Core gitHub  to find the answer. Wanting to do some custom authorization on a SignalR Hub when the client makes a connection (Hub is created) and when an endpoint (Hub method) is called:  I was assuming I could use the same Policy for both class & method attributes, but it ain't so - not because you can't, because you need the signatures to be different. Method implementation has a resource type of HubInnovationContext: I assumed class implementation would have a resource type of HubConnectionContext - client connects etc... This isn't the case, it's infact of type DefaultHttpContext . For me I don't even need that, it can be removed completely  from the inheritence signature and override implementation. Only other thing to note, and this could be a biggy, is the ordering of the statements in th