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am just switching over to c#, I have the line <br />
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&nbsp; &nbsp;public event PropertyChangedEventHandle<wbr />r PropertyChanged = delegate { };<br />
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what does the = delegate{} do?<br />
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I am sure I have seen this slightly different to check if anything if connected, a null check previously
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am just switching over to c#, I have the line 

   public event PropertyChangedEventHandler PropertyChanged = delegate { };

what does the = delegate{} do?

I am sure I have seen this slightly different to check if anything if connected, a null check previously

INotifyPropertyChanged - delegate{}

The .NET Framework is not specific to any one programming language; rather, it includes a library of functions that allows developers to rapidly build applications. Several supported languages include C#, VB.NET, C++ or ASP.NET.

.NET Programming

C# is an object-oriented programming language created in conjunction with Microsoft’s .NET framework. Compilation is usually done into the Microsoft Intermediate Language (MSIL), which is then JIT-compiled to native code (and cached) during execution in the Common Language Runtime (CLR).