private void GetColumns <T>(ref IDTSConnectionManagerFlatFile100 manager, EntityTypeConfiguration <T> map) where T : class
{
foreach (object column in manager.Columns)
{
manager.Columns.Remove(column);
}
Type type = typeof(T);
T instance = (T)Activator.CreateInstance(type);
IEnumerable <Tuple <string, string, int?, int?> > columnInfo = map.GetColumnInfo()
.OrderBy(o => o.Item3);
Dictionary <string, int> numberLengths = new Dictionary <string, int>
{
{ "LOGRECNO", 7 },
{ "AREALAND", 14 },
{ "AREAWATR", 14 },
{ "POP100", 9 },
{ "HU100", 9 }
};
foreach (Tuple <string, string, int?, int?> column in columnInfo)
{
//Console.WriteLine(column);
int?columnWidth = numberLengths.ContainsKey(column.Item1)
? numberLengths[column.Item1]
: column.Item4;
if (!columnWidth.HasValue)
{
throw new ArgumentException($"Invalid Column width on {column.Item1}");
}
dynamic ffColumnObject = manager.Columns.Add();
IDTSConnectionManagerFlatFileColumn100 ffColumn = (IDTSConnectionManagerFlatFileColumn100)ffColumnObject;
ffColumn.DataType = column.Item2.Equals("NVARCHAR")
? DataType.DT_STR
: DataType.DT_I4;
ffColumn.ColumnType = "FixedWidth";
ffColumn.ColumnWidth = columnWidth.Value;
ffColumn.MaximumWidth = ffColumn.ColumnWidth;
IDTSName100 columnName = ffColumnObject as IDTSName100;
if (columnName != null)
{
columnName.Name = column.Item1;
columnName.Description = instance.GetName(column.Item1);
}
}
dynamic ffTerminatingColumnObject = manager.Columns.Add();
IDTSConnectionManagerFlatFileColumn100 ffTerminatingColumn = (IDTSConnectionManagerFlatFileColumn100)ffTerminatingColumnObject;
ffTerminatingColumn.DataType = DataType.DT_STR;
ffTerminatingColumn.ColumnWidth = 1;
ffTerminatingColumn.MaximumWidth = 1;
IDTSName100 terminatingColumnName = ffTerminatingColumnObject as IDTSName100;
if (terminatingColumnName != null)
{
terminatingColumnName.Name = "TERMINATOR";
terminatingColumnName.Description = "A single space terminating column to ensure all record rows are matching lengths";
}
}