public static Field fromSnapshot(Table table, OleDbDataReader reader)
{
string name = reader.GetValue(reader.GetOrdinal("name")).ToString();
int dataType = int.Parse(reader.GetValue(reader.GetOrdinal("dataType")).ToString());
Field field = null;
if (table.fields.ContainsKey(name))
{
field = table.fields[name];
}
switch (dataType)
{
case (int)OleDbType.BigInt:
case (int)OleDbType.Decimal:
case (int)OleDbType.Currency:
case (int)OleDbType.Double:
case (int)OleDbType.Integer:
case (int)OleDbType.Numeric:
case (int)OleDbType.Single:
case (int)OleDbType.SmallInt:
case (int)OleDbType.UnsignedBigInt:
case (int)OleDbType.UnsignedInt:
case (int)OleDbType.UnsignedSmallInt:
case (int)OleDbType.UnsignedTinyInt:
{
if (field == null)
{
field = new FieldNumeric(table, reader);
}
else
{
field.read(reader);
}
break;
}
case (int)OleDbType.Date:
case (int)OleDbType.DBDate:
case (int)OleDbType.DBTime:
case (int)OleDbType.DBTimeStamp:
case (int)OleDbType.Filetime:
{
if (field == null)
{
field = new FieldDateTime(table, reader);
}
else
{
field.read(reader);
}
break;
}
case (int)OleDbType.BSTR:
case (int)OleDbType.Char:
case (int)OleDbType.LongVarChar:
case (int)OleDbType.LongVarWChar:
case (int)OleDbType.VarChar:
case (int)OleDbType.VarWChar:
case (int)OleDbType.WChar:
{
if (field == null)
{
field = new FieldString(table, reader);
}
else
{
field.read(reader);
}
break;
}
case (int)OleDbType.Boolean:
{
if (field == null)
{
field = new FieldBoolean(table, reader);
}
else
{
field.read(reader);
}
break;
}
default:
{
Console.WriteLine($"Error : Unknown OleDb Data Type {dataType} | Table : {table.name} | Field : {name}");
break;
}
}
// don't add multiple
if (field != null && !table.fields.ContainsKey(field.name))
{
table.fields.Add(field.name, field);
}
return(field);
}
public static Field fromAdoDb(Table table, DataRow row)
{
string name = row["COLUMN_NAME"].ToString();
int dataType = int.Parse(row["DATA_TYPE"].ToString());
Field field = null;
switch (dataType)
{
case (int)OleDbType.BigInt:
case (int)OleDbType.Decimal:
case (int)OleDbType.Currency:
case (int)OleDbType.Double:
case (int)OleDbType.Integer:
case (int)OleDbType.Numeric:
case (int)OleDbType.Single:
case (int)OleDbType.SmallInt:
case (int)OleDbType.UnsignedBigInt:
case (int)OleDbType.UnsignedInt:
case (int)OleDbType.UnsignedSmallInt:
case (int)OleDbType.UnsignedTinyInt:
{
field = new FieldNumeric(table, row);
break;
}
case (int)OleDbType.Date:
case (int)OleDbType.DBDate:
case (int)OleDbType.DBTime:
case (int)OleDbType.DBTimeStamp:
case (int)OleDbType.Filetime:
{
field = new FieldDateTime(table, row);
break;
}
case (int)OleDbType.BSTR:
case (int)OleDbType.Char:
case (int)OleDbType.LongVarChar:
case (int)OleDbType.LongVarWChar:
case (int)OleDbType.VarChar:
case (int)OleDbType.VarWChar:
case (int)OleDbType.WChar:
{
field = new FieldString(table, row);
break;
}
case (int)OleDbType.Boolean:
{
field = new FieldBoolean(table, row);
break;
}
default:
{
Console.WriteLine($"Error : Unknown OleDb Data Type {dataType} | Table : {table.name} | Field : {name}");
break;
}
}
if (field != null)
{
table.fields.Add(field.name, field);
}
return(field);
}
