将DataReader转换为DataTable

public static DataTable ConvertDataReaderToDataTable(SqlDataReader dataReader)
{
    ///定义DataTable
    DataTable datatable = new DataTable();

    try
    {    ///动态添加表的数据列
        for (int i = 0; i < dataReader.FieldCount; i++)
        {
            DataColumn myDataColumn = new DataColumn();
            myDataColumn.DataType = dataReader.GetFieldType(i);
            myDataColumn.ColumnName = dataReader.GetName(i);
            datatable.Columns.Add(myDataColumn);
        }

        ///添加表的数据
        while (dataReader.Read())
        {
            DataRow myDataRow = datatable.NewRow();
            for (int i = 0; i < dataReader.FieldCount; i++)
            {
                myDataRow[i] = dataReader[i].ToString();
            }
            datatable.Rows.Add(myDataRow);
            myDataRow = null;
        }
        ///关闭数据读取器
        dataReader.Close();
        return datatable;
    }
    catch (Exception ex)
    {
        ///抛出类型转换错误
        //SystemError.CreateErrorLog(ex.Message);
        throw new Exception(ex.Message, ex);
    }
}