File download in aspx and MVC mixed mode case - asp.net-mvc

Question

The below given codes works perfect for me when i am using it with pure asp.net(aspx) application having redirection and front end in asp net.
Now my scenario is, i have mixed mode application in mvc and asp.net(aspx page)
so i am simply using same page(aspx) for downloading file by calling it from mvc controller method, which is not working .
i have written ajax call in view to call a void method in controller which redirects to aspx page where this code is written , rest of case is as mentioned above.
**string path = HttpContext.Current.Server.MapPath("~/Reporting/OnePager.xlsm");
string id = Request.Params["id"];
HttpResponse response = this.Response;
response.Buffer = true;
response.Clear();
response.ContentType = "application/vnd.ms-excel";
response.AddHeader("content-disposition", "attachment; filename=" + id + "-One-Pager.xlsm");
response.WriteFile(path);
response.Flush();
response.End();**
Here is ajax call
if (arrselected.length > 0) {
$.ajax({
type: 'POST',
url: '#Url.Action("ExportProjectOnePager", "controller")',
dataType: 'json',
contentType: "application/json; charset=utf-8",
data: JSON.stringify({ ID: arrselected[0]}),
success: function (output) {
if (output.notValid.length != arrselected.length) {
alert("success");
}
if (output.notValid != "") {
alert("You do not have permission to see this IDs :" + output.notValid);
}
}
});
}
and here is void controller method
public void ExportProjectOnePager(string ID)
{
string _Path = #"~/Reporting/ProjectOnePager.aspx?id=" + ID;
Response.Redirect(_Path);
}

Answer 1

You can do the same in the controller method, but you have to change it to return FileResult or FileStreamResult, and copy the code there.
You can also change the controller method to return RedirectResult and inside the code use return Redirect('the aspx page') instead of Response.Redirect and return type is void