sqlDataReader填充DataTable

public DataTable DataReaderToDataTable(IDataReader reader)
        {           
            DataTable tb = new DataTable();
            DataColumn col;
            DataRow row;
            int i;

            for (i = 0; i < reader.FieldCount; i++)
            {
                col = new DataColumn();
                col.ColumnName = reader.GetName(i);
                col.DataType = reader.GetFieldType(i);
                tb.Columns.Add(col);
            }

            while (reader.Read())
            {
                row = tb.NewRow();
                for (i = 0; i < reader.FieldCount; i++)
                {
                    row[i] = reader[i];
                }
                tb.Rows.Add(row);
            }
            return tb;
        }

 

 

ASP.NET2.0有更简单的方法：

DataTable dt=new DataTable();
dt.Load(IDataReader);