C# method multiple constraints with "new"

Question

I'm trying to define a method that has multiple constraints where the T type is able to be used as a constructor:

private void GetData<T, OType>(string url, string token1, string token2, Action<T, SqlConnection, SqlTransaction> bulkInsert, string user = null, string pwd = null) 
    where T : JsonElements<OType>, new
    where OType : class 
{
    var thing = T();

I'm getting an error on the new part though saying

) expected

What's the right syntax for this?

score 4 · Accepted Answer · answered May 30 '18 at 20:11

4

You have to use new(), not just new. This is a visual clue to a parameter-less constructor.

Also, you have to use new T() when assigning thing.

answered May 30 '18 at 20:11

Daniel A. White

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C# method multiple constraints with "new"

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