/// <summary>
/// Matches underlying rows with provided primary key value(s) from other DataSet.
/// </summary>
/// <param name="columns">The columns of other DataSet's primary key.</param>
/// <param name="dataRow">The DataRow of other DataSet.</param>
/// <returns>The matched <see cref="RowPresenter"/>, <see langword="null"/> if no matched row.</returns>
public RowPresenter Match(IReadOnlyList <Column> columns, DataRow dataRow = null)
{
columns.VerifyNotNull(nameof(columns));
if (!CanMatchRow)
{
return(null);
}
var valueHashCode = RowMatch.GetHashCode(columns, dataRow);
if (!valueHashCode.HasValue)
{
return(null);
}
return(LayoutManager[new RowMatch(columns, dataRow, valueHashCode.Value)]);
}
private int?GetMatchValueHashCode()
{
return(_rowMapper == null || !_rowMapper.CanMatchRow || DataRow == null || DataRow.IsAdding ? null : RowMatch.GetHashCode(MatchColumns, DataRow));
}