Web,c#,asp.net-mvc,linq,delegates,controller,C#,Asp.net Mvc,Linq,Delegates,Controller,我想将自定义筛选器传递给控制器中的操作方法。 我试着这样定义它 public ActionResult GetResult(Func filter) { List faultList; using (var _context = new myDB()) { faultList = from f in _context.Faults where f WebDelegates act as a way to parametrize some kind of action. The function that is being passed a delegate doesn't care how the action is done, just that it is performed. For example, look at the IComparer interface. It allows you to sort a list without relying on how the type in the list is "naturally" sorted.
C# : When would you use delegates in C#? - YouTube
WebMay 19, 2012 · The Delegates Approach Technically, a delegate is a reference type used to encapsulate a method with a specific signature and return type. You can encapsulate any matching method in that delegate. Here we are going to create a delegate with some signature and assign a function to the delegate to assign the text from textbox to label. WebUsing Delegates with Events The events are declared and raised in a class and associated with the event handlers using delegates within the same class or some other class. The class containing the event is used to publish the event. This is called the publisher class. Some other class that accepts this event is called the subscriber class. jeff russo wkbw
Asynchronous Programming Using Delegates Microsoft Learn
WebGUI code uses delegates to handle events, such as button clicks, window moves. Using the delegate allows you do have a function called whenever the event occurs. An example would be linking a function that saves data to a "Save" button on the interface. When the button gets clicked it is set up to execute the function that saves data. WebMay 28, 2024 · Delegates in C# are really powerful, but most people don't know how to use them effectively, if at all. Today I am going to show you what delegates are, how to use them, why they are... WebMay 5, 2014 · Delegates are basically a cleaner, easier function pointer. Any place where function pointers were used in C++, you can think delegate. Advantages to using them … jeff russo lrgion soundtrack