binding

问题 Is it possible to have a linux library (e.g. "libloader.so") load another library to resolve any external symbols? I've got a whole bunch of code that gets conditionally compiled for the SIMD level to be supported ( SSE2, AVX, AVX2 ). This works fine if the build platform is the same as the runtime platform. But it hinders reuse across different processor generations. One thought is to have executable which calls function link to libloader.so that does not directly implement function . Rather

问题 i have System.Data.DataRows with several fields, most of them just plain types like int, single, string. what is the best way to make them editable using a propertygrid? it should work automatically no matter what kind of fields the datarow has, but it should not display all of them. i want to provide a list of properties that should be hidden. since the DataTable is autogenerated i cannot add custom attributes like [Browsable(false)] thanks a lot! 回答1: Edited to handle filtering; much

问题 i have System.Data.DataRows with several fields, most of them just plain types like int, single, string. what is the best way to make them editable using a propertygrid? it should work automatically no matter what kind of fields the datarow has, but it should not display all of them. i want to provide a list of properties that should be hidden. since the DataTable is autogenerated i cannot add custom attributes like [Browsable(false)] thanks a lot! 回答1: Edited to handle filtering; much

问题 I've spent a couple of hours searching about this error, and I have tested almost everything it's on Google. I want to access a service using TCP, .NET4 and VS2010, in C#. I Have a very tiny service: namespace WcfService_using_callbacks_via_tcp { [ServiceContract(CallbackContract = typeof(ICallback), SessionMode = SessionMode.Required)] public interface IService1 { [OperationContract] string Test(int value); } public interface ICallback { [OperationContract(IsOneWay = true)] void

问题 I've spent a couple of hours searching about this error, and I have tested almost everything it's on Google. I want to access a service using TCP, .NET4 and VS2010, in C#. I Have a very tiny service: namespace WcfService_using_callbacks_via_tcp { [ServiceContract(CallbackContract = typeof(ICallback), SessionMode = SessionMode.Required)] public interface IService1 { [OperationContract] string Test(int value); } public interface ICallback { [OperationContract(IsOneWay = true)] void

问题 I've spent a couple of hours searching about this error, and I have tested almost everything it's on Google. I want to access a service using TCP, .NET4 and VS2010, in C#. I Have a very tiny service: namespace WcfService_using_callbacks_via_tcp { [ServiceContract(CallbackContract = typeof(ICallback), SessionMode = SessionMode.Required)] public interface IService1 { [OperationContract] string Test(int value); } public interface ICallback { [OperationContract(IsOneWay = true)] void

问题 It appears the class constants only cover PDO::PARAM_BOOL , PDO::PARAM_INT and PDO::PARAM_STR for binding. Do you just bind decimal / float / double values as strings or is there a better way to treat them? MySQLi allows the 'd' type for double, it's surprising that PDO doesn't have an equivalent when it seems better in so many other ways. 回答1: AFAIK PDO::PARAM_STR is the way to go. 回答2: You have to use PDO::PARAM_STR, but for SQLite and other engines this can have unpredictable behaviors.

问题 I want to make navigation from child components that render inside router-outlet. My parent component have a router config and I want to navigate manually on some event. But I don't know how I can pass from child to parent some data (for navigation) without output. Because this construction is non working <router-outlet (navigateTo)="navigateToMessagePart($event)"></router-outlet> How I can do it in right way? Maybe navigate it from child? But how I can get parent methods from child. Many

问题 I am trying to bind the ENTER key to the email password entry box. That way when I have entered all three items I can press enter to call the callback() function. The other issue I have is with the .get() method. It does not seem to assign the values I typed into the entry boxes to the variables I defined in my code. from Tkinter import * root = Tk() # grabs the values in the entry boxes and assigns them to variablse def callback(): steamUser = steamUserW.get() steamPass = steamPassW.get()

问题 I'm writing a simple noughts - and - crosses game in python using Tkinter and want to have the Os show only when you hover over them. To do this, I know I need to add an event binding, but don't know how because when I create a circle (arc) I don't get an object returned but an id number instead. How can I use this id number to create an event binding? 回答1: Instead of using the ID number to create an event binding, I would recommend using a tag system to go about this. When creating your oval