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Home/ Questions/Q 931451
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Editorial Team
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Editorial Team
Asked: May 15, 20262026-05-15T20:30:12+00:00 2026-05-15T20:30:12+00:00

I can restrict generics to a specify type using the Where clause such as:

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I can restrict generics to a specify type using the “Where” clause such as:

public void foo<TTypeA>() where TTypeA : class, A

How do I do this if my function has two generic types?

public void foo<TTypeA, TTypeB>() where TTypeA : class, A && TTypeB : class, B

The above doesn’t work. What’s the correct syntax to add the rule “TTypeB : class, B”

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  1. Editorial Team
    Editorial Team
    2026-05-15T20:30:13+00:00Added an answer on May 15, 2026 at 8:30 pm
     public void foo<TTypeA, TTypeB>() where TTypeA : class, A 
                                       where TTypeB : class, B 
    
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