Can you explain me code below : private static List<Post> _Posts; public static Post GetPost(Guid id) { return _Posts.Find(delegate(Post p) { return p.Id == id; }); } What is the point to find an object in a generic list by that way ? He can simply iterate the list. How this delegated method called for each element ...
In C#, you can define small pieces of code called delegates anonymously (even though they are nothing more than syntactic sugar). So, or example, I can do this: public string DoSomething(Func<string, string> someDelegate) { // Do something involving someDelegate(string s) } DoSomething(delegate(string s){ return s += "asd"; }); D...
For the record: I found a similar question here but I have to elaborate a bit more on on the subject. My concrete scenario is this: In Silverlight 4, The myFrameworkElement.FindName("otherElementName") method seems to work fine now, but I encountered a problem. It still returns null when the element is not yet added to the visual tree ...
I'm rather new to these could someone explain the significance (of the following code) or perhaps give a link to some useful information on lambda expressions? I encounter the following code in a test and I am wondering why someone would do this: foo.MyEvent += (o, e) => { fCount++; Console.WriteLine(fCount); }; foo.MyEvent -= (o, e) =...
If i have: public static Func<SomeType, bool> GetQuery() { return a => a.Foo=="Bar"; } and a generic version public static Func<T, bool> GetQuery<T>() { return (Func<T,bool>)GetQuery(); } Is there a way to cast my strongly typed Func of SomeType to a Func of T? The only way I have found so far is to try and combine it with a mock...
Hi. I have a class called NTree: class NTree<T> { delegate bool TreeVisitor<T>(T nodeData); public NTree(T data) { this.data = data; children = new List<NTree<T>>(); _stopTraverse = false; } ... public void Traverse(NTree<T> node, TreeVisitor<T> visitor) { try {...
I've downloaded the VCSharpSample pack from Microsoft and started reading on Anonymous Delegates. I can more or less understand what the code is doing, but I don't understand the reason behind it. Maybe if you gave me some examples where it would result in cleaner code and easier maintainability then I could wrap my head around it. :) C...
Currently, I have a static factory method like this: public static Book Create(BookCode code) { if (code == BookCode.Harry) return new Book(BookResource.Harry); if (code == BookCode.Julian) return new Book(BookResource.Julian); // etc. } The reason I don't cache them in any way is because BookResource is sensitive to cultu...
Hello I have progress form which delegate: // in ProgressForm thread public delegate void executeMethod(object parameters); private executeMethod method; public object parameters; // ... private void ProgressForm_Shown(object sender, EventArgs e) { method.Invoke(parameters); } Which way ...