To exit your application you can call System.Windows.Application.Current.Shutdown(); As described in the documentation to the Application.Shutdown method you can also modify the shutdown behavior of your application by specifying a ShutdownMode: Shutdown is implicitly called by Windows Presentation Foundation (WPF) in the following situations: When ShutdownMode is set to OnLastWindowClose. When the ShutdownMode is set … Read more
Simple check to see if two time periods overlap: bool overlap = a.start < b.end && b.start < a.end; or in your code: bool overlap = tStartA < tEndB && tStartB < tEndA; (Use <= instead of < if you change your mind about wanting to say that two periods that just touch each other … Read more
An AnyCPU assembly will JIT to 64-bit code when loaded into a 64-bit process and 32 bit when loaded into a 32-bit process. By limiting the CPU you would be saying: There is something being used by the assembly (something likely unmanaged) that requires 32 bits or 64 bits.
I like to use properties in a class instead of methods, since they look more enum-like. Here’s an example for a Logger: public class LogCategory { private LogCategory(string value) { Value = value; } public string Value { get; private set; } public static LogCategory Trace { get { return new LogCategory(“Trace”); } } public … Read more
You can create a new writeable instance of HttpValueCollection by calling System.Web.HttpUtility.ParseQueryString(string.Empty), and then use it as any NameValueCollection. Once you have added the values you want, you can call ToString on the collection to get a query string, as follows: NameValueCollection queryString = System.Web.HttpUtility.ParseQueryString(string.Empty); queryString.Add(“key1”, “value1”); queryString.Add(“key2”, “value2”); return queryString.ToString(); // Returns “key1=value1&key2=value2”, all … Read more
Yes. It’s like the difference between a tollbooth and a door. The ManualResetEvent is the door, which needs to be closed (reset) manually. The AutoResetEvent is a tollbooth, allowing one car to go by and automatically closing before the next one can get through.
It specifies that an iterator has come to an end. You can think of yield break as a return statement which does not return a value. For example, if you define a function as an iterator, the body of the function may look like this: for (int i = 0; i < 5; i++) { … Read more
It usually happens because one of the following reasons: Entity Set is mapped from Database view A custom Database query Database table doesn’t have a primary key After doing so, you may still need to update in the Entity Framework designer (or alternatively delete the entity and then add it) before you stop getting the … Read more
If your result set returns 0 records: SingleOrDefault returns the default value for the type (e.g. default for int is 0) FirstOrDefault returns the default value for the type If you result set returns 1 record: SingleOrDefault returns that record FirstOrDefault returns that record If your result set returns many records: SingleOrDefault throws an exception … Read more
As it says, the “source code is different from the original version”. Right click on the project folder inside the solution explorer and choose to Clean. Build a new version of the project and the breakpoint will work again!