来自List <row>的数据表

时间:2017-05-07 21:09:08

标签: c# csv reflection datatable

我已经下载了List<Row> Rows中包含的数据,如下所示:

class Row
{
    string[] Items { get; set; }
    public Row(string[] Items)
    {
        this.Items = Items;
    }
}

这些行基本上是以逗号分隔的条目(.csv)

using (var reader = new StreamReader(spreadSheetStream))          
{
    string header = reader.ReadLine(); //This is the header
    Rows.Add(new Row(header.Split(',')));

    while (!reader.EndOfStream)
    {
        string tickerInfo = reader.ReadLine();  //This is a data entry                                             
        Rows.Add(new Row(tickerInfo.Split(',')));                        
    }
}

我将List<Row>转换为Datatable,就像这样

DataTable historicalDataTable = ToDataTable<Row>(Rows);

List<Row> Rows的第一个元素包含列的名称,其中七个。然后,每个元素都是一个实际的数据元素。

public static DataTable ToDataTable<T>(List<T> items)
{
    DataTable dataTable = new DataTable(typeof(T).Name);

    //Get all the properties
    PropertyInfo[] Props = typeof(T).GetProperties(BindingFlags.Public | BindingFlags.Instance);
    foreach (PropertyInfo prop in Props)
    {
        //Setting column names as Property names
        dataTable.Columns.Add(prop.Name);
    }
    foreach (T item in items)
    {
        var values = new object[Props.Length];
        for (int i = 0; i < Props.Length; i++)
        {
            //inserting property values to datatable rows
            values[i] = Props[i].GetValue(item, null);
        }
        dataTable.Rows.Add(values);
    }
    //put a breakpoint here and check datatable
    return dataTable;
}

当我尝试写出表格的内容时,我看到了正确的行数,ItemArray

中没有任何内容
foreach (DataRow dataRow in historicalDataTable.Rows)
{
    Console.WriteLine(dataRow.ToString());
    foreach (var item in dataRow.ItemArray)
    {
        Console.WriteLine(item);
    }
}

0 个答案:

没有答案