how to change below code from asp.net to razor page

i am new in razor page but working in aspx below of my code of please help to convert to razor page

void Page_Load(object sender, EventArgs e) {

foreach(string f in Request.Files.AllKeys) {
    HttpPostedFile file = Request.Files[f];
    file.SaveAs("C:\\e_data\\WorkPage\\IMS18\\ALBAB_Dynamic\\20008\\Case_Manager\\" + file.FileName);
}   

}

want to change in razor page code