How to generate multiple file/bill on single click ?

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C#

ASP.NET

file

algorithm

MVC3

Hi everyone,

I have a simple method wich generate a file based on a view (Export.cshtml) to format data.

//ExportController
               public ActionResult Export(string searchString, int searchOrder = 0)
               {

                   var user = from m in db.Orders select m;

                   Response.AddHeader("Content-Type", "application/vnd.ms-excel");
                   return this.View(user);
               }

In the following code, I added a if condition to select a clientID.

//Index.cshtml
               public ActionResult Export(string searchString, int searchOrder = 0)
               {

                   var user = from m in db.Orders select m;
                   
                   if (!String.IsNullOrEmpty(searchString))
                   {
                       user = user.Where(s => s.ClientID.Contains(searchString));
                   }

                   Response.AddHeader("Content-Type", "application/vnd.ms-excel");
                   return this.View(user);
               }

In this case, in my Index.cshtml view, I enter an ID in a textbox, and when I click on a submit button, it generate a file with only the lines that match this ID.

I would like, when I click the submit button, it retrieves me a file for each clientID in my table, because if I have more than 10.000 clientID, I won't enter an ID and click on submit 10.000 times.

I hope I was clear enough, sorry for my english and thanks in advance for your answers, tips, link, anything... I'm really stuck.