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POHow to implement two way binding between an ActiveX control and a WPF MVVM View Model
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  1. POHow to implement two way binding between an ActiveX control and a WPF MVVM View Model
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    copied!<p>I have a WPF application implemented using the MVVM framework that uses an ActiveX control and I need to keep the WPF and ActiveX UI synchronised.</p> <p>So far I can update the ActiveX UI when I change the WPF UI using the code at the bottom of the question that I got from the article <a href="http://msdn.microsoft.com/en-us/library/ms742735.aspx" rel="nofollow noreferrer">Hosting an ActiveX Control in WPF</a> and this <a href="https://stackoverflow.com/q/3895356/174682">question</a>.</p> <p>But I cannot update the WPF UI when I make a change in the ActiveX UI.</p> <p>I suspect that I need to fire the PropertyChanged event from my ActiveX control but I have no idea how to do this or if it is even possible.</p> <p>The ActiveX controls I have written are in VB6 and MFC as I am just prototying at this time for the eventual integration of VB6 ActiveX controls in a WPF contaner application.</p> <p>Here is a code snipet that indicates the work done so far:</p> <pre><code>System.Windows.Forms.Integration.WindowsFormsHost host = new System.Windows.Forms.Integration.WindowsFormsHost(); // Create the ActiveX control. AxTEXTBOXActiveXLib.AxTEXTBOXActiveX axWmp = new AxTEXTBOXActiveXLib.AxTEXTBOXActiveX(); // Assign the ActiveX control as the host control's child. host.Child = axWmp; axWmp.DataBindings.Add(new System.Windows.Forms.Binding("ActiveXStatus", (MainWindowViewModel)this.DataContext, "ModelStatus", true, DataSourceUpdateMode.OnPropertyChanged )); // Add the interop host control to the Grid // control's collection of child controls. this.activexRow.Children.Add(host); </code></pre> <p>How to implement two way binding between an ActiveX control and a WPF MVVM View Model?</p>
 

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