.net

问题 Consider the following code sample: using System; using System.Linq.Expressions; public class Class1<T, Y> { public Class1(Expression<Func<T, Y>> mapExpression) { GetValue = mapExpression.Compile(); } public Func<T, Y> GetValue { get; protected set; } } public class DataClass { public long Data { get; set; } } Now suppose that I make in different places new instances of Class1, e.g. var instance1 = new Class1<DataClass, long>(x => x.Data); var instance2 = new Class1<DataClass, long>(x => x

问题 I have a WCF service that caches certain data and uses it to respond to web requests. To deal with this requirement, I made the service a Singleton (using InstanceContextMode.Single and ConcurrencyMode.Multiple (yes, it's threadsafe)). I've tried to set the timeout of the service to its maximum using the following binding: <binding name="WebHttpBinding" receiveTimeout="24.20:31:23.6470000"> <security mode="TransportCredentialOnly"> <transport clientCredentialType="None" /> </security> <

问题 I have a WCF service that caches certain data and uses it to respond to web requests. To deal with this requirement, I made the service a Singleton (using InstanceContextMode.Single and ConcurrencyMode.Multiple (yes, it's threadsafe)). I've tried to set the timeout of the service to its maximum using the following binding: <binding name="WebHttpBinding" receiveTimeout="24.20:31:23.6470000"> <security mode="TransportCredentialOnly"> <transport clientCredentialType="None" /> </security> <

问题 I'm just going inside the CLR and IL and I'm confused by this thing. I have the following C# code: int x = 1; object obj = x; int y = (int)obj; And IL disassemble for this // Code size 18 (0x12) .maxstack 1 .locals init ([0] int32 x, [1] object obj, [2] int32 y) IL_0000: nop IL_0001: ldc.i4.1 IL_0002: stloc.0 IL_0003: ldloc.0 IL_0004: box [mscorlib]System.Int32 IL_0009: stloc.1 IL_000a: ldloc.1 IL_000b: unbox.any [mscorlib]System.Int32 IL_0010: stloc.2 IL_0011: ret So, the ldloc.0 instruction

问题 What I'm trying to do is simple: make my WinForm on top of another, but not topmost. Like, when I click on a window, my winform will be on top of it, but when I click on something else, like a browser, my form will not be on top of it. Like a TopMost WinForm, but only for a specific process. (Im making a overlay for a game, so I need it to be topmost ONLY on the game.) Pictures to help (Everything inside the RED border is my form): And then when I change to another window (In this case,

问题 What I'm trying to do is simple: make my WinForm on top of another, but not topmost. Like, when I click on a window, my winform will be on top of it, but when I click on something else, like a browser, my form will not be on top of it. Like a TopMost WinForm, but only for a specific process. (Im making a overlay for a game, so I need it to be topmost ONLY on the game.) Pictures to help (Everything inside the RED border is my form): And then when I change to another window (In this case,

问题 I'm just going inside the CLR and IL and I'm confused by this thing. I have the following C# code: int x = 1; object obj = x; int y = (int)obj; And IL disassemble for this // Code size 18 (0x12) .maxstack 1 .locals init ([0] int32 x, [1] object obj, [2] int32 y) IL_0000: nop IL_0001: ldc.i4.1 IL_0002: stloc.0 IL_0003: ldloc.0 IL_0004: box [mscorlib]System.Int32 IL_0009: stloc.1 IL_000a: ldloc.1 IL_000b: unbox.any [mscorlib]System.Int32 IL_0010: stloc.2 IL_0011: ret So, the ldloc.0 instruction

问题 I'm just going inside the CLR and IL and I'm confused by this thing. I have the following C# code: int x = 1; object obj = x; int y = (int)obj; And IL disassemble for this // Code size 18 (0x12) .maxstack 1 .locals init ([0] int32 x, [1] object obj, [2] int32 y) IL_0000: nop IL_0001: ldc.i4.1 IL_0002: stloc.0 IL_0003: ldloc.0 IL_0004: box [mscorlib]System.Int32 IL_0009: stloc.1 IL_000a: ldloc.1 IL_000b: unbox.any [mscorlib]System.Int32 IL_0010: stloc.2 IL_0011: ret So, the ldloc.0 instruction

问题 I'm trying to parse an xml document using the following: XmlDocument doc = new XmlDocument (); doc.LoadXml (myXMLstring); I get the error: The type or namespace name 'XmlDocument' could not be found. Are you missing an assembly reference? ..even though I have using System.Xml; I'm not sure what an assembly reference is. I'm using Xamarin Studio. I see there are several folders for references. In the references folder for the base project I don't see an entry for System.Xml But in individual

问题 I want to retrieve some data with an HttpWebRequest (GET): var request = (HttpWebRequest)WebRequest.Create(myUri); request.Timeout = 5 * 60 * 1000; request.ReadWriteTimeout = 5 * 60 * 1000; // request.ServicePoint.SetTcpKeepAlive(true, 5 * 1000, 1000); var response = request.GetResponse(); Unfortunately the computation on the server can take two or more minutes. So between me sending the header and finally receiving the data in the response stream the socket connection is idle. With curl or a