No, it’s not that – by default, references are checked for equality. Operators such as == are not polymorphic and don’t call anything polymorphic by default. So for example: string x = “Hello”; string y = new String(“Hello”.ToCharArray()); Console.WriteLine(x == y); // True; uses overloaded operator object a = x; object b = y; Console.WriteLine(a … Read more
Nick Craver mentioned checking the Configuration Manager to ensure you have the project selected to build for a given configuration. However, to set the build order for multiple projects in a solution right click the solution and choose “Project Build Order…” from the context menu.
I wrote the following using EF6, but I believe it is all compatible with EF5. The general idea behind the code is to use the excellent classes in a System.Data.Metadata.Edm to get the navigation properties and use reflection on those property names to get the true properties of the object for updating. I wanted to … Read more
//using System.Management public bool IsUsbDeviceConnected(string pid, string vid) { using (var searcher = new ManagementObjectSearcher(@”Select * From Win32_USBControllerDevice”)) { using (var collection = searcher.Get()) { foreach (var device in collection) { var usbDevice = Convert.ToString(device); if (usbDevice.Contains(pid) && usbDevice.Contains(vid)) return true; } } } return false; }
If you don’t need the title attribute on individual options your code could be simplified to: public static HtmlString SelectFor<TModel, TProperty, TIdProperty, TDisplayProperty, TListItem>( this HtmlHelper<TModel> htmlHelper, Expression<Func<TModel, TProperty>> expression, IEnumerable<TListItem> enumeratedItems, Expression<Func<TListItem, TIdProperty>> idProperty, Expression<Func<TListItem, TDisplayProperty>> displayProperty, object htmlAttributes ) where TModel : class { var id = (idProperty.Body as MemberExpression).Member.Name; var display = … Read more
if (record[“Dosage”].ToString() != string.Empty) result.StartsWith(“https://stackoverflow.com/”) && result.EndsWith(“https://stackoverflow.com/”) ? result.Replace(“https://stackoverflow.com/”, string.Empty) : result; The second line there is not a statement, it is an expression. Not all expressions can be statements in C#, so this is a syntax error. Presumably you meant to assign the result of this to result: if (record[“Dosage”].ToString() != string.Empty) result = … Read more
In general, you’d have to either use a List<object> or create a non-generic base class, e.g. public abstract class ValuePair { public string Name { get; set;} public abstract object RawValue { get; } } public class ValuePair<T> : ValuePair { public T Value { get; set; } public object RawValue { get { return … Read more
Here’s a visitor that does the job. it makes a copy of the parameter (since we’ll need to create a new parameter and substitute all references of the old parameter for the new one) it walks the .Body of the tree, substituting the parameter, and switching any member-access against the old type to a like-named … Read more
Finally found a solution to my queries. Its all here. Supporting Cross Origin Resource Nice step by step explanation. I guess I could have never figured this out on my own. CODE: Create 2 classes as follows: MessageInspector implementing IDispatchMessageInspector. BehaviorAttribute implementing Attribute, IEndpointBehavior and IOperationBehavior. With the following details: //MessageInspector Class using System; using … Read more
it should be something like this var request = HttpWebRequest.Create(“http://www.google.com”) as HttpWebRequest; if (request != null) { var response = request.GetResponse() as HttpWebResponse; string contentType = “”; if (response != null) contentType = response.ContentType; }