xamarinmac 
namespace System.Data.Common
{
    public abstract class DbCommand : IDbCommand, IDisposable
    {
        public void Dispose();
    }
}
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Reference this API
.NET
5.06.07.08.09.010.0
.NET Core
1.01.12.02.12.23.03.1
.NET Standard
1.21.31.41.51.62.02.1
Information specific to xamarinmac
Assembly

System.Data.Common , Version=4.1.0.0, PublicKeyToken=b03f5f7f11d50a3a

Referencing

Your project needs a package reference to System.Data.Common.

Package System.Data.Common (4.3.0) netstandard1.2
Platform Restrictions

This framework does not have platform annotations.

  • Built-in API
  • Package-provided API