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.NET Framework Class Library
Context..::Changing Event

BMXNET 4.0 Developer API

When the current patient or visit is being changed by the user, every subscriber to the Changing method has the option to "Veto" the event by Cancelling it:

Copy Code
                public void Startup()
                 {
                     if (this.Context != null)
                     {
                         this.Context.Changed += new EventHandler<ContextChangedArgs>(Context_Changed);
                         this.Context.Changing += new EventHandler<ContextChangedArgs>(Context_Changing);
                 }

                 void Context_Changing(object sender, ContextChangingArgs e)
                 {
                     e.Cancel = needToFinishSomethingElseBeforeChangingContext;
                 }

However, a Veto is like a U.S. presential Veto and that it can be overridden. The WinFramework or EHR can override any Veto so all components (even if they veto changes) must be prepared to have the context changed at anytime.

Namespace: IndianHealthService.BMXNet.Model
Assembly: BMXNET40 (in BMXNET40.dll)

# Syntax

| C# |  |  | Visual Basic |  |  | Visual C++ |

    event EventHandler<ContextChangingArgs> Changing

    Event Changing As EventHandler(Of ContextChangingArgs)

     event EventHandler<ContextChangingArgs^>^ Changing {
    	void add (EventHandler<ContextChangingArgs^>^ value);
    	void remove (EventHandler<ContextChangingArgs^>^ value);
    }

# See Also

Context Interface
IndianHealthService.BMXNet.Model Namespace