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POExecute a derived constructor before the base constructor in C#
 

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    <p>My problem here is that I would like to pass an object to a derived class, but it must be done before the base class constructor, since the base class will immediately call the derived class's <code>Start()</code> method that uses the object.</p> <p>Here's an excerpt from the base class, (renamed from <a href="http://msdn.microsoft.com/en-us/library/aa446489.aspx#barcode_scanners_netcf_topic6" rel="noreferrer">BarcodeScanner</a> for convenience).</p> <pre><code>public abstract class MyBase { public MyBase() { if (Initialize()) this.Start(); } public abstract bool Initialize(); public abstract void Start(); } </code></pre> <p>Here's the derived class that I'm creating.</p> <pre><code>class MyDerived : MyBase { private string sampleObject; public MyDerived (string initObject) { sampleObject = initObject; } public override bool Initialize() { return GetDevice(); } public override void Start() { Console.WriteLine("Processing " + sampleObject.ToString()); } } </code></pre> <p>I doubt you can make C# execute a derived constructor before the base constructor; so I'm really just looking for a solution to pass an object to the derived class before the object is used.</p> <p>I've gotten around this by putting the Initialize/Start if block inside the <code>MyDerived</code> constructor. However, there are other classes deriving from the base class; so I ended up having to repeat this block of Initialize/Start code in every derived class. I'd like to see an alternative to modifying the base class. </p>
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