/// <summary>
/// LINQ's Where operator for generic EnumerableRowCollection.
/// </summary>
public static EnumerableRowCollection <TRow> Where <TRow>(this TypedTableBase <TRow> source, Func <TRow, bool> predicate) where TRow : DataRow
{
DataSetUtil.CheckArgumentNull(nameof(source), "source");
EnumerableRowCollection <TRow> erc = new EnumerableRowCollection <TRow>(source);
return(erc.Where(predicate));
}
public void Where_SuccessfullyFindRow()
{
TypedTableBase <DataRow> table = new TestTypedTable <DataRow>();
table.Columns.Add();
DataRow two = table.Rows.Add("two");
EnumerableRowCollection <DataRow> source = table.Cast <DataRow>();
var filtered = source.Where(row => "two".Equals(row.ItemArray[0]));
// Check that only one row matches predicate condition
Assert.Equal(1, filtered.Count());
// Check that matching row is the same object as the second data row
Assert.Same(two, filtered.First());
}
