dynamic

问题 Currently I am using LinqKit / Ms dynamic query example to dynamically build Linq Expressions from strings. This works fine. LinqKit: http://www.albahari.com/nutshell/linqkit.aspx Microsoft dynamic Linq queries: http://weblogs.asp.net/scottgu/archive/2008/01/07/dynamic-linq-part-1-using-the-linq-dynamic-query-library.aspx Right now, I am migrating my application from C#3.5 to C#4.0. I am wondering if there is another way (standard way of the framework) to build queries from strings. I have

问题 I am currently trying to create dynamically-created data tables that each have its own tab. The number of tabs is determined by the user. I have used the code from this post as a framework. I am able to create the tabs dynamically, but I can't figure out how to add data tables to the tabs. The data tables are determined by user input too. So, for example, say in ui.R, the user has the choice to pick which data sets they want to see: ui.R library(shiny) shinyUI(fluidPage( titlePanel("Example")

问题 can anyone please explain, with an example if possible, how to load dynamic content inside an iscroll div and assign a new height to it? I can get it to work but I can't control the height of the scroll for the new content. I'm new to all this and have no clue were to start. here's what I'm working on: http://homepage.mac.com/jjco/test/index7.html when the page is loaded you see the scroll bar where there's no content... clicking on print/damm (shows the height I originally set for this

问题 I want to import the modules dynamically, by the following way: I create a folder named pkg with this structure: pkg |__init__.py |foo.py In the head of __init__.py , add this code fragement: pkgpath = os.path.dirname(pkg.__file__); for module in pkgutil.iter_modules([pkgpath]): __import__(module[1], locals(), globals()); m = sys.modules[module[1]]; print m.__package__; I found m.__package__ is None in case there is no import statements in foo.py but if I add a simple import statement like

问题 I am dynamically calling Windows API. I found some code online that can do this, and I took a whole lot of interest to it. The idea itself is brilliant to say the least. However, I can't seem to make it work for my code. The parameters for the dynamic call are as of type string , string int[] , and I would like to use the API GetThreadContext with the parameters of pInfo.hThred and ref ctx (shown below). API Call GetThreadContext(pInfo.hThread, ref ctx); The above code will make a call to the

问题 We have Jython , JRuby , Groovy which are dynamically typed and runs over JVM . I understand that these languages compile to bytecode. Other languages such as Scala supports type inference, and its clear that the compiler infers the type for us. But Java is a static language and it compiles to bytecode, does this mean bytecode supports dynamic typing? For e.g. In Java we need to declare the variable type at compile time, and can never change it. But in case of Python we dont have to declare a

问题 In my current application we create controls dynamically inside panel based on database value. Like, Type controls, Style, width, etc. Is it possible to do something like this using ASP.NET MVC? Thanks, Alps 回答1: ASP.Net MVC doesn't use server controls like ASP.Net webforms does. What you're talking about is definitely possible, but MVC gets you down to the HTML level, rather than abstracting it into controls. You'd likely want to be using partial views, or else looking at adding extension

问题 I want to create subdomains dynamically through a PHP script or something similar. I've seen lots of sites that create subdomains for individual users, or for new forum spaces. I'm just wondering how that works, and how I can implement it in my system. Thanks for your help! 回答1: Take a look into wildcard subdomains. Once you have all of the "subdomains" going to the right place, you can use url rewriting and/or some other mixture of redirecting to create the effect of subdomains without

问题 Heroku allows you to add and remove dynos and workers on the fly and charges you per second that each is used. Is it possible to set up my app so that it can add/remove dynos and workers from itself depending on the load it's under? This paragraph on Heroku.com mentions an API, but I can't find out much more about it. 回答1: Yes. What you want is something like this: require 'heroku' Heroku::Client.new("username", "password").set_workers("appname", num_workers) 来源： https://stackoverflow.com

问题 So here it is: I am trying to invoke a WCF Service's method from with in a windows form client application. I do not have the Contract Class Definition. The only thing I have is the Service's URI, which is http://ip:port/Service1.svc. So I thought i could make a proxy class for that. I want to make the proxy class at run time so any external tool to create a proxy class and import to project can't help me. I managed to make the proxy class on the fly. Here's the code: Dim mexClient As