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Editorial Team
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Asked: 2026-05-14T22:22:52+00:00

Now that people have been using C# 4.0 for a while I thought I’d

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Now that people have been using C# 4.0 for a while I thought I’d see how people were most often using the type ‘dynamic’ and why has this helped them solve their problem better than they may have done previously?

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  1. Editorial Team

    For example when using reflection.

    Example, something like this: 

    object calc = GetCalculator();
Type calcType = calc.GetType();
object res = calcType.InvokeMember("Add", BindingFlags.InvokeMethod, null, new object[] { 10, 20 });
int sum = Convert.ToInt32(res);

    would than become: 

    dynamic calc = GetCalculator();
int sum = calc.Add(10, 20);

    That’s a big improvement I think.

    But there are more subjects where this can come in handy. For instance when working with COM interop objects this could come in handy, look at:
    http://www.devx.com/dotnet/Article/42590

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