/// <summary>
/// This method provides access to the values in each of the columns in a given row.
/// This method makes casts unnecessary when accessing columns.
/// Additionally, Field supports nullable types and maps automatically between DBNull and
/// Nullable when the generic type is nullable.
/// </summary>
/// <param name="row">The input DataRow</param>
/// <param name="columnName">The input column name specificy which row value to retrieve.</param>
/// <param name="version">The DataRow version for which row value to retrieve.</param>
/// <returns>The DataRow value for the column specified.</returns>
public static T Field<T>(this DataRow row, string columnName, DataRowVersion version)
{
DataSetUtil.CheckArgumentNull(row, nameof(row));
return UnboxT<T>.s_unbox(row[columnName, version]);
}
/// <summary>
/// This method provides access to the values in each of the columns in a given row.
/// This method makes casts unnecessary when accessing columns.
/// Additionally, Field supports nullable types and maps automatically between DBNull and
/// Nullable when the generic type is nullable.
/// </summary>
/// <param name="row">The input DataRow</param>
/// <param name="columnIndex">The input ordinal specificy which row value to retrieve.</param>
/// <returns>The DataRow value for the column specified.</returns>
public static T Field<T>(this DataRow row, int columnIndex)
{
DataSetUtil.CheckArgumentNull(row, nameof(row));
return UnboxT<T>.s_unbox(row[columnIndex]);
}
public static T Field <T>(this DataRow row, int columnIndex, DataRowVersion version)
{
DataSetUtil.CheckArgumentNull(row, nameof(row));
return(UnboxT <T> .s_unbox(row[columnIndex, version]));
}
public static T Field <T>(this DataRow row, DataColumn column)
{
DataSetUtil.CheckArgumentNull(row, nameof(row));
return(UnboxT <T> .s_unbox(row[column]));
}
/// <summary>
/// This method provides access to the values in each of the columns in a given row.
/// This method makes casts unnecessary when accessing columns.
/// Additionally, Field supports nullable types and maps automatically between DBNull and
/// Nullable when the generic type is nullable.
/// </summary>
/// <param name="row">The input DataRow</param>
/// <param name="columnName">The input column name specifying which row value to retrieve.</param>
/// <returns>The DataRow value for the column specified.</returns>
public static T?Field <T>(this DataRow row, string columnName)
{
DataSetUtil.CheckArgumentNull(row, nameof(row));
return(UnboxT <T> .s_unbox(row[columnName]));
}
/// <summary>
/// This method provides access to the values in each of the columns in a given row.
/// This method makes casts unnecessary when accessing columns.
/// Additionally, Field supports nullable types and maps automatically between DBNull and
/// Nullable when the generic type is nullable.
/// </summary>
/// <param name="row">The input DataRow</param>
/// <param name="column">The input DataColumn specificy which row value to retrieve.</param>
/// <param name="version">The DataRow version for which row value to retrieve.</param>
/// <returns>The DataRow value for the column specified.</returns>
public static T Field <T>(this DataRow row, DataColumn column, DataRowVersion version)
{
DataSetUtil.CheckArgumentNull(nameof(row), "row");
return(UnboxT <T> .s_unbox(row[column, version]));
}