reflection - Why is my C# IS statement not working? -

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i have following code, t generic defined such:

public abstract class repositorybase<t> t : class, idatamodel

this code works fine:

propertyinfo propertyinfo = typeof(t).getproperty(propertyname); if (propertyinfo.declaringtype.fullname == typeof(t).fullname)  <--- works fine

vs code evaluates false

propertyinfo propertyinfo = typeof(t).getproperty(propertyname); if (propertyinfo.declaringtype t) <-- not work

what doing wrong here?

is uses type comparison between 2 objects. declaringtype of type type , typeof(t) of type t, not equal.

var atype = typeof(propertyinfo.declaringtype); var btype = typeof(t); bool areequal = atype btype; // false, unless t type

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