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POEntryPointNotFound when subscribe an event via IObservable
 

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  1. POEntryPointNotFound when subscribe an event via IObservable
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    <p>I tried to make a Drag and drop in a WPF application using Rx and when I tried to Subscrive a EntryPointNotFindException was throwed....can anyone help me with this?</p> <p>WPF Application Code</p> <pre><code>&lt;Window x:Class="RxDragDropPOC.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="MainWindow" Height="300" Width="300"&gt; &lt;Canvas Name="canvas"&gt; &lt;TextBlock Name="textBlock" Text="Test" /&gt; &lt;Image Canvas.Left="0" Canvas.Top="25" Height="100" Name="image" Width="100" Source="C:/Users/guilherme.dias/Desktop/images.jpg" /&gt; &lt;/Canvas&gt; </code></pre> <p></p> <p>C# code</p> <pre><code>public partial class MainWindow : Window { public MainWindow() { InitializeComponent(); var mouseDown = from evt in Observable.FromEvent&lt;MouseButtonEventArgs&gt;(image, "MouseLeftButtonDown") select evt.EventArgs.GetPosition(this); var mouseUp = from evt in Observable.FromEvent&lt;MouseButtonEventArgs&gt;(image, "MouseLeftButtonUp") select evt.EventArgs.GetPosition(this); var mouseMove = from evt in Observable.FromEvent&lt;MouseEventArgs&gt;(image, "MouseMove") select evt.EventArgs.GetPosition(this); var q = from start in mouseDown from pos in mouseMove.StartWith(start).TakeUntil(mouseUp). Let(mm =&gt; mm.Zip(mm.Skip(1), (prev, cur) =&gt; new { X = cur.X - prev.X, Y = cur.Y - prev.Y })) select pos; //THIS IS THE LINE THAT THROWS EntryPointNotFound q.ObserveOnDispatcher().Subscribe(value =&gt; { Canvas.SetLeft(image, Canvas.GetLeft(image) + value.X); Canvas.SetTop(image, Canvas.GetTop(image) + value.Y); }); } } </code></pre> <p>EDIT 1</p> <p>Exception details</p> <pre><code>System.EntryPointNotFoundException was caught Message=Entry point was not found. Source=mscorlib TypeName="" StackTrace: at System.IObservable`1.Subscribe(IObserver`1 observer) at System.ObservableExtensions.Subscribe[TSource](IObservable`1 source, Action`1 onNext, Action`1 onError, Action onCompleted) at System.Linq.Observable.&lt;&gt;c__DisplayClass3dd`2.&lt;Select&gt;b__3db(IObserver`1 observer) at System.Collections.Generic.AnonymousObservable`1.&lt;&gt;c__DisplayClass1.&lt;Subscribe&gt;b__0() at System.Concurrency.CurrentThreadScheduler.EnsureTrampoline(Action action) at System.Collections.Generic.AnonymousObservable`1.Subscribe(IObserver`1 observer) at System.ObservableExtensions.Subscribe[TSource](IObservable`1 source, Action`1 onNext, Action`1 onError, Action onCompleted) at System.Linq.Observable.&lt;&gt;c__DisplayClass3dd`2.&lt;Select&gt;b__3db(IObserver`1 observer) at System.Collections.Generic.AnonymousObservable`1.&lt;&gt;c__DisplayClass1.&lt;Subscribe&gt;b__0() at System.Concurrency.CurrentThreadScheduler.EnsureTrampoline(Action action) at System.Collections.Generic.AnonymousObservable`1.Subscribe(IObserver`1 observer) at System.ObservableExtensions.Subscribe[TSource](IObservable`1 source, Action`1 onNext, Action`1 onError, Action onCompleted) at System.Linq.Observable.&lt;&gt;c__DisplayClass2e5`1.&lt;Merge&gt;b__2de(IObserver`1 observer) at System.Collections.Generic.AnonymousObservable`1.&lt;&gt;c__DisplayClass1.&lt;Subscribe&gt;b__0() at System.Concurrency.CurrentThreadScheduler.EnsureTrampoline(Action action) at System.Collections.Generic.AnonymousObservable`1.Subscribe(IObserver`1 observer) at System.ObservableExtensions.Subscribe[TSource](IObservable`1 source, Action`1 onNext, Action`1 onError, Action onCompleted) at System.Linq.Observable.&lt;&gt;c__DisplayClass27b`1.&lt;ObserveOn&gt;b__274(IObserver`1 observer) at System.Collections.Generic.AnonymousObservable`1.&lt;&gt;c__DisplayClass1.&lt;Subscribe&gt;b__0() at System.Concurrency.CurrentThreadScheduler.EnsureTrampoline(Action action) at System.Collections.Generic.AnonymousObservable`1.Subscribe(IObserver`1 observer) at System.ObservableExtensions.Subscribe[TSource](IObservable`1 source, Action`1 onNext, Action`1 onError, Action onCompleted) at System.ObservableExtensions.Subscribe[TSource](IObservable`1 source, Action`1 onNext) at RxDragDropPOC.MainWindow..ctor() in C:\Semantic Framework\POC\RxDragDropPOC\RxDragDropPOC\MainWindow.xaml.cs:line 46 </code></pre>
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    1. PO
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      1. PTAnswer
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    1. PTQuestion
    1. USGuilherme
    1. USGuilherme
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
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      1. PTAnswer
    1. This table or related slice is empty.
    1. COPlease, provide the exception details. For now it seems like you've got some compilation errors or wrong assembly references.
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      1. POEntryPointNotFound when subscribe an event via IObservable
      1. USPavel Gatilov
 

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