net9.0 
namespace System.Data.Common
{
    [DefaultMember("Item")]
    public abstract class DbDataReader : MarshalByRefObject, IEnumerable, IDataReader, IDataRecord, IAsyncDisposable, IDisposable
    {
        public virtual Task<ReadOnlyCollection<DbColumn!>!>! GetColumnSchemaAsync(CancellationToken cancellationToken = default);
    }
}
nuget.org
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Reference this API
Design Reviews
.NET 5.06.07.08.09.0
Information specific to net9.0
Assembly

System.Data.Common , Version=9.0.0.0, PublicKeyToken=b03f5f7f11d50a3a

Referencing

The API is automatically referenced.

Platform Restrictions

This API is supported on all platforms.

  • Built-in API
  • Package-provided API