/// <summary>
/// Extracts data columns from a collection of CLR class instances
/// </summary>
/// <typeparam name="TClass">Class type</typeparam>
/// <param name="classInstances">Collection of class instances</param>
/// <param name="schema">Schema to operate on</param>
public IReadOnlyCollection <DataColumn> ExtractColumns <TClass>(IEnumerable <TClass> classInstances, Schema schema)
{
List <DataField> dataFields = schema.GetDataFields();
IColumnClrMapper valuesExtractor = new SlowReflectionColumnClrMapper(typeof(TClass));
IReadOnlyCollection <DataColumn> result = valuesExtractor.ExtractDataColumns(dataFields, classInstances);
return(result);
}
