珍惜源码，传播留址

using System.Collections.Generic;
using System.Data;
using System.Data.OleDb;
using System.Text;

public List<string> GetList(string tn)
{
    DataTable table = dbcon.GetOleDbSchemaTable(OleDbSchemaGuid.Columns, new object[] { null, null, null, null });
    List<string> ts = new List<string>();
    foreach (DataRow row in table.Rows)
    {
        if(row["TABLE_NAME"].ToString()==tn)
            ts.Add(row["COLUMN_NAME"].ToString());
     }
     return ts;
}

测试运行

查询结果：{ID,测试1,测试2,}