dynamic

Expression.Call and Count

由 故事扮演 提交于 2019-12-10 16:13:27
问题 I'm looking for a way to do following dynamically: var q = context.Subscription .Include("Client") .Include("Invoices") Where(s=>s.Client.Invoices.Count(i=>i.InvoiceID == SomeInt) > 0); I would like to build expression dynamically for the left side: Expression left = s => s.Client.Invoices.Count(i => i.InvoiceID == iSomeVar); //! Expression right = Expression.Constant(0); var binary = Expression.GreaterThan(left, right); Thanks! UPDATED NOTES: Please note: The end result must be Expression

MyEclipse Web Project转Eclipse Dynamic Web Project

由 前提是你 提交于 2019-12-10 16:06:08
由于工作原因，需要将svn上的MyEclipse Web Project导入到Eclipse（Eclipse Java EE 4.2）中开发。但是在部署到tomcat时，发现无法发布这个项目。 MyEclipse Web Project被识别为Java Project。所以决定从Java Project和Dynamic Web Project的区别开始分析。 一、分析 Java Project .classpath .project .settings org.eclipse.jdt.core.prefs Dynamic Web Project .classpath .project .settings .jsdtscope org.eclipse.jdt.core.prefs org.eclipse.wst.common.component org.eclipse.wst.common.project.facet.core.xml org.eclipse.wst.jsdt.ui.superType.container org.eclipse.wst.jsdt.ui.superType.name .classpath中增加了J2EE Standard Tools (JST)的配置，.project中增加了Eclipse Modeling Framework Project (EMF

Trouble with FindControl and dynamicly created controls

由 此生再无相见时 提交于 2019-12-10 15:54:52
问题 Example code: var div = new HtmlGenericControl("div"); div.Controls.Add(new Literal() { ID = "litSomeLit" }); var lit = (Literal)div.FindControl("litSomeLit"); Assert.IsNotNull(lit); This code fails the assert, because lit is null. Debugging shows that div.Controls definitely contains a literal with ID of "litSomeLit." My questions are "Why?" and "Is there any way to get a control of a specific ID without doing a recursive search of div.Controls[] by hand one element at a time?" The reason I

Angular Dynamic Component Injection error

由 女生的网名这么多〃 提交于 2019-12-10 15:49:17
问题 I'm building a small reference application to see how to dynamically inject components in one component to view the content on the page. I'm getting an error that points to the ViewContainerRef object. This is the component that should display the injected component's content in the view, but it's throwing an error: Here is the StatsComponent that is throwing the error: export class StatsComponent implements AfterViewInit, OnDestroy { @Input() dynComp: DynamicComponent; @ViewChild

Python packages not originating from filesystem

由 假装没事ソ 提交于 2019-12-10 15:42:42
问题 In the python documentation describing the import system, there is the following (emphasis done by me): [...] You can think of packages as the directories on a file system and modules as files within directories, but don’t take this analogy too literally since packages and modules need not originate from the file system . [...] What options are there for storing modules and packages that do not correspond to files and folders, respectively, in the filesystem? I read about the possibility of

How to invoke static method with dynamic argument when a non-static, better-fit method exists?

由 爷，独闯天下 提交于 2019-12-10 15:13:43
问题 Inspired by this question I have tried a following code on Mono 2.10.9 and Visual Studio 2010: public class Example { public static void Main() { Foo(1); } public static void Foo( dynamic x ) { Example.Bar(x); } static void Bar( dynamic x ) { x++; } int count; void Bar( int x ) { count++; } } As you can see, Foo is static, so it can only access static Bar - and I explicitly invoke the static version! I know that I would not be able to declare static void Bar( int x ) , because a non-static

How to dynamically generate textbox and collect data entered by user?

由 女生的网名这么多〃 提交于 2019-12-10 15:12:30
问题 I will appreciate answers in VB or C# we use a database to create Data Collection forms with dynamic items I used this code to generate labels and textboxes from a table in database (when the user hits the button "load CRF") Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click Dim CRFgrid As New GridView CRFgrid.DataSource = CRFds CRFgrid.DataBind() Dim ItemCount As Integer = CRFgrid.Rows.Count Session("Itemcount") = CRFgrid.Rows.Count For I =

“CompileAssemblyFromSource” in f# powerPack codeDom

由 大兔子大兔子 提交于 2019-12-10 14:43:40
问题 I am trying to get going a basic program to dynamically compile and run f# code. I am trying to run the following code: open System open System.CodeDom.Compiler open Microsoft.FSharp.Compiler.CodeDom // Our (very simple) code string consisting of just one function: unit -> string let codeString = "module Synthetic.Code\n let syntheticFunction() = \"I've been compiled on the fly!\"" // Assembly path to keep compiled code let synthAssemblyPath = "synthetic.dll" let CompileFSharpCode(codeString,

ASP.NET - Dynamic controls created in Page_Pre_init() or Page_Init() or Page_Load()

由 喜夏-厌秋 提交于 2019-12-10 14:34:48
问题 Where is the best place to create dynamic controls in ASP.NET? MSDN says Pre_init , another MSDN article says Init, and some people say the Load event (which I read isn't good to do). I'm studying for a MS certification and I want to make sure I know which one is ideal and why. My initial thought would be to create the object in pre_init and assign any property values in the Load event (so that ViewState would be loaded for the dynamic control). 回答1: I recommend Page_Init(). This will bypass

C# 4: Determining parameter passing semantics in dynamic calls

由 谁说我不能喝 提交于 2019-12-10 14:33:48
问题 In C# 4, when deriving from DynamicObject and overridding TryInvokeMember, how can one determine whether any parameters supplied at the call site have been passed with out or ref semantics? I can see some private fields in the supplied binder that contain this information (namely the Microsoft.CSharp.RuntimeBinder.ICSharpInvokeOrInvokeMemberBinder.ArgumentInfo property) but it appears to be inaccessible. I assume this information must be available somewhere otherwise it would limit one's
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