How to create an instance of a .NET Generic class in Dyalog?

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How to create an instance of a .NET Generic class in Dyalog?

Postby Vince|Dyalog on Fri Aug 27, 2021 11:52 am

How do I access this System.Collections.Generic.List`1 class?

It is a “generic” (i.e its full name is List<T>), which means that you need to provide a Type (i.e. a class) for “T”.

We do not have a syntax to do that. So, it is not possible to create one directly from Dyalog.

Having said that, you can use. Type.MakeGenericType ( to create a Type, and then use Activator.CreateInstance ( to create an instance of it.

So, the following code is an example of that, which works in .NET Framework 4

Code: Select all
⎕USING←'' 'System' 'System,System.dll' 'System.Text' 'System.Type'
listcol1←Activator.CreateInstance lobj(,⊂bytearr)
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Joined: Wed Oct 01, 2008 9:39 am

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