/// <summary> Gets a string field list with the specified separator.
/// The fields match the specified match predicate delegate and their names are transformed by
/// the specified string transformation action delegate.
/// </summary>
/// <param name="match">A match predicate delegate.</param>
/// <param name="transformation">A string transformation action delegate.</param>
/// <param name="separator">The string that separates fields.</param>
/// <returns>A string field list with the transformed fields name separated by the specified separator.</returns>
private string GetFieldList(Predicate <FieldInfo> match, FieldTransformation transformation, string separator)
{
string fieldList = "";
int fieldIndex = 0;
List <FieldInfo> fields;
//Public member match
if (match != null)
{
fields = GetFields().FindAll(match);
}
else
{
fields = GetFields();
}
//Public filtered members iteration
foreach (FieldInfo fieldInfo in fields)
{
string fieldName;
object fieldValue = fieldInfo.GetValue(this);
DbField field = (DbField)fieldValue;
//Transform the field name
if (transformation != null)
{
fieldName = transformation(field);
}
else
{
fieldName = fieldInfo.Name;
}
//Build the SQL text
if (fieldIndex == 0)
{
fieldList = fieldName;
}
else
{
fieldList = fieldList + separator + fieldName;
}
fieldIndex++;
}
return(fieldList);
}
/// <summary> Gets a string field list.
/// The fields match the specified match predicate delegate and their names are transformed by
/// the specified string transformation action delegate.
/// </summary>
/// <param name="match">A match predicate delegate.</param>
/// <param name="transformation">A string transformation action delegate.</param>
/// <returns>A string field list with the transformed fields name separated by commas.</returns>
private string GetFieldList(Predicate <FieldInfo> match, FieldTransformation transformation)
{
return(GetFieldList(match, transformation, ","));
}
