TypedTableBase.cs

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using System.Collections;
using System.Collections.Generic;
using System.Diagnostics.CodeAnalysis;
using System.Linq;
using System.Runtime.Serialization;
 
namespace System.Data;
 
[Serializable]
public abstract class TypedTableBase<T> : DataTable, IEnumerable<T>, IEnumerable where T : DataRow
{
    protected TypedTableBase()
    {
    }
 
    [UnconditionalSuppressMessage("ReflectionAnalysis", "IL2112:ReflectionToRequiresUnreferencedCode", Justification = "DataTable.CreateInstance's use of GetType uses only the parameterless constructor, not this serialization related constructor.")]
    [RequiresUnreferencedCode("Members from serialized types may be trimmed if not referenced directly.")]
    protected TypedTableBase(SerializationInfo info, StreamingContext context)
        : base(info, context)
    {
    }
 
    public IEnumerator<T> GetEnumerator()
    {
        return base.Rows.Cast<T>().GetEnumerator();
    }
 
    IEnumerator IEnumerable.GetEnumerator()
    {
        return GetEnumerator();
    }
 
    public EnumerableRowCollection<TResult> Cast<TResult>()
    {
        EnumerableRowCollection<T> source = new EnumerableRowCollection<T>(this);
        return source.Cast<TResult>();
    }
}