遍历文件夹里面的文件，并绑定到dropdownlist

string rep_path = Server.MapPath("reports");
string[] files = Directory.GetFiles(rep_path);
string[] report_files = new string[files.Length];
for (int i = 0; i < files.Length; i++)
{

report_files[i] = files[i].Replace(rep_path + "//", "");
}
DropDownList1.DataSource = report_files;

DropDownList1.DataBind();