File force download [c#]

File force download - CS ASP.NET

// full path to your file
string yourFilePath = HttpContext.Current.Request.PhysicalApplicationPath + "imageFolder\\yourFile.jpg";

// save downloaded file as (name)
string saveFileAs = "yourFile.jpg";

Response.Clear();
Response.AddHeader("content-disposition", "attachment; filename=" + saveFileAs);
Response.WriteFile(yourFilePath);
Response.ContentType = "";
Response.End();