How do I create a custom IDataReader to a custom collection?

    internal class MockDataReader : IDataReader
    {
        int curRow = -1;
        string[] columns;
        object[][] data;
        public MockDataReader(
            string[] columns,
            object[][] data)
        {
            this.columns = columns;
            this.data = data;
        }
        #region IDataReader Members
 
        public void Close()
        {
        }
 
        public int Depth
        {
            get { return 0; }
        }
 
        public DataTable GetSchemaTable()
        {
            return null;
        }
 
        public bool IsClosed
        {
            get { return this.curRow < data.Length; }
        }
 
        /// <summary>
        /// Advances the data reader to the next result, when reading the results of batch SQL statements.
        /// </summary>
        /// <returns>
        /// true if there are more rows; otherwise, false.
        /// </returns>
        public bool NextResult()
        {
            return false;
        }
 
        /// <summary>
        /// Advances the <see cref="T:System.Data.IDataReader"></see> to the next record.
        /// </summary>
        /// <returns>
        /// true if there are more rows; otherwise, false.
        /// </returns>
        public bool Read()
        {
            curRow++;
            return this.IsClosed;
        }
 
        public int RecordsAffected
        {
            get { return data.Length; }
        }
 
        #endregion
 
        #region IDisposable Members
 
        public void Dispose()
        {
        }
 
        #endregion
 
        #region IDataRecord Members
 
        public int FieldCount
        {
            get { return this.data[0].Length; }
        }
 
        public bool GetBoolean(int i)
        {
            return Convert.ToBoolean(this.data[curRow][i]);
        }
 
        public byte GetByte(int i)
        {
            return Convert.ToByte(this.data[curRow][i]);
        }
 
        public long GetBytes(int i, long fieldOffset, byte[] buffer, int bufferoffset, int length)
        {
            throw new Exception("The method or operation is not implemented.");
        }
 
        public char GetChar(int i)
        {
            return Convert.ToChar(this.data[curRow][i]);
        }
 
        public long GetChars(int i, long fieldoffset, char[] buffer, int bufferoffset, int length)
        {
            Convert.ToString(this.data[curRow][i]).CopyTo((int)fieldoffset, buffer, bufferoffset, length);
            return length;
        }
 
        public IDataReader GetData(int i)
        {
            throw new Exception("The method or operation is not implemented.");
        }
 
        public string GetDataTypeName(int i)
        {
            return this.GetFieldType(i).Name;
        }
 
        public DateTime GetDateTime(int i)
        {
            return Convert.ToDateTime(this.data[curRow][i]);
        }
 
        public decimal GetDecimal(int i)
        {
            return Convert.ToDecimal(this.data[curRow][i]);
        }
 
        public double GetDouble(int i)
        {
            return Convert.ToDouble(this.data[curRow][i]);
        }
 
        public Type GetFieldType(int i)
        {
            return this.data[curRow][i].GetType();
        }
 
        public float GetFloat(int i)
        {
            return Convert.ToSingle(this.data[curRow][i]);
        }
 
        public Guid GetGuid(int i)
        {
            return new Guid(this.GetString(i));
        }
 
        public short GetInt16(int i)
        {
            return Convert.ToInt16(this.data[curRow][i]);
        }
 
        public int GetInt32(int i)
        {
            return Convert.ToInt32(this.data[curRow][i]);
        }
 
        public long GetInt64(int i)
        {
            return Convert.ToInt64(this.data[curRow][i]);
        }
 
        public string GetName(int i)
        {
            return this.columns[i];
        }
 
        public int GetOrdinal(string name)
        {
 
            for (int idx = 0; idx < this.columns.Length; idx++)
            {
                if (name.Equals(this.columns[idx]))
                    return idx;
            }
            return -1;
        }
 
        public string GetString(int i)
        {
            return Convert.ToString(this.data[curRow][i]);
        }
 
        public object GetValue(int i)
        {
            return this.data[curRow][i];
        }
 
        public int GetValues(object[] values)
        {
            this.data[curRow].CopyTo(values, 0);
            return data[curRow].Length;
        }
 
        public bool IsDBNull(int i)
        {
            return Convert.IsDBNull(this.data[curRow][i]);
        }
 
        public object this[string name]
        {
            get
            {
                int column = this.GetOrdinal(name);
                return this.data[curRow][column];
            }
        }
 
        public object this[int column]
        {
            get
            {
                return this.data[curRow][column];
            }
        }
 
        #endregion
    }
                                              

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