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Asked: 2026-05-13T20:04:42+00:00

I was just reading How costly is .NET reflection? I do numerous reflection calls

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I was just reading How costly is .NET reflection?
I do numerous reflection calls for property sets and was wondering if I should be looking at converting all of my PropertyInfo.SetProperty() into MethodInfos calls so that I can run Delegate.CreateDelegate against.

Finally if I do this, I assume that I need to store each MethodInfo or the Property based on the object Type even if the Property name and Type are the same across multiple Types

fyi. I am using dotnet 2

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I am not dealing with a critical performance problem per se, but there are sometimes enough of a lag that working on this is not a bad idea if it will make a difference. Furthermore, 90%+ of my reflection calls occur with 2 functions so small changes there could have huge impact throughout the app.

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  1. Editorial Team

    It doesn’t make any difference. The cost is in retrieving the metadata from the assembly. Whether it is a PropertyInfo or the MethodInfo that reflects the setter or getter is immaterial. Time this with System.Diagnostics.Stopwatch to convince yourself, the proof is in the pudding. Make sure you time the first use, it is fast after that thanks to the metadata getting cached.

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