private static DbSchemaRow[] GetSortedSchemaRows(DataTable dataTable, bool returnProviderSpecificTypes)
{
DataColumn column = dataTable.Columns[SchemaMappingUnsortedIndex];
if (column == null)
{
column = new DataColumn(SchemaMappingUnsortedIndex, typeof (int));
dataTable.Columns.Add(column);
}
int count = dataTable.Rows.Count;
for (int index = 0; index < count; ++index)
{
dataTable.Rows[index][column] = index;
}
var schemaTable = new DbSchemaTable(dataTable, returnProviderSpecificTypes);
DataRow[] dataRowArray = dataTable.Select(null, "ColumnOrdinal ASC", DataViewRowState.CurrentRows);
var dbSchemaRowArray = new DbSchemaRow[dataRowArray.Length];
for (int index = 0; index < dataRowArray.Length; ++index)
{
dbSchemaRowArray[index] = new DbSchemaRow(schemaTable, dataRowArray[index]);
}
return dbSchemaRowArray;
}
internal DbSchemaRow(DbSchemaTable schemaTable, DataRow dataRow)
{
this.schemaTable = schemaTable;
this.dataRow = dataRow;
}