C# get generic type arguments from within the executed generic method without directly referencing them, i.e. typeof(T0)

Asked Jan 20 '21 at 23:22

Active Jan 21 '21 at 06:18

Viewed 23 times

Is it possible to get generic type arguments from within the executed generic method without directly referencing them (i.e. typeof(T0))? For example:

public static List<(T0?, T1?, T2?, T3?, T4?)> ParseParameter<T0, T1, T2, T3, T4>(this JArray array, params string[] columnCodesCaseIndependent)
{
    var genericArgs = MethodBase.GetCurrentMethod()!.GetGenericArguments();
    
    // ...

    return result;
}

Testing the above in debugger I see:

{Name="T0", FullName=null}
same as above for the rest

So the types are not the ones actually used. net5.0

edited Jan 21 '21 at 06:18

asked Jan 20 '21 at 23:22

aleksander_si

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How are you calling this method? – Chetan Jan 20 '21 at 23:27
@ChetanRanpariya ParseParameter("doublecol", "stringcol", ...). I was hoping to get the array of types without having to call typeof(T0), typeof(T1), ... – aleksander_si Jan 21 '21 at 06:13

C# get generic type arguments from within the executed generic method without directly referencing them, i.e. typeof(T0)

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