在列表文件夹中读取CSV文件时出错

string[] filePaths = Directory.GetFiles("D:''", "*.csv");
foreach (var file in filePaths)
{
    //  string[] datacsv = System.IO.File.ReadAllLines("D:''LP02_1506172300.csv");
    string[] datacsv2 = System.IO.File.ReadAllLines(file);
    string[] data_col = null;
    int x = 0;
    foreach (string textcsv in datacsv2)
    {
        data_col = textcsv.Split(',');
        if (x == 0)
        {
            for (int i = 0; i <= data_col.Count()-1; i++)
            {
                Table.Columns.Add(data_col[i]);
            }
            x++;
        }
        else
        {
                Table.Rows.Add(data_col);
        }
    }
    Gridviews.DataSource = Table;
    this.Controls.Add(Gridviews);

"Table.Columns.Add(data_col[i])"已经有一个名为" Date "的列了

提前致谢