ASP.NET MVC幾個常件的ActionResult的範例
剛從資策會畢業，第一個專案就是ASP MVC，所以整理了一下，MVC幾個常用的ActionResult
ActionResult
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ActionResult |
public ActionResult PasswordError() { return View(); } |
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Javscript() |
public JavaScriptResult ForJavaScriptResult() { //string js = "alert(\"這是JavascriptResult的結果\")"; //string js = "Javascript:alert(123)"; //return JavaScript(js); return JavaScript("alert('Java script')"); } |
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FilePathResult() |
public FilePathResult ForFilePathResult() { // ../ 上一層 // ../../ 上兩層 // ../../../ 上三層 var imgPath = Server.MapPath("~/"); return File(imgPath + "example.jpg", "image/png"); } |
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DownloadFile() |
public ActionResult DownloadFile()//下載檔案，FileStream 只能用內部 { Stream iStream = new FileStream(Server.MapPath("~/example.jpg"), FileMode.Open, FileAccess.Read, FileShare.Read); return File(iStream, "image/png", "1.jpg"); // return JavaScript("alert(\"無此檔案\")"); } |
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JsonResult ForJsonResult() |
public JsonResult ForJsonResult() { var JsonContent = new { Id = 1, Content = "這是JsonResult" }; return Json(JsonContent, JsonRequestBehavior.AllowGet); } |
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Upload(單檔) |
[HttpPost] public ActionResult Upload(HttpPostedFile file) { if (file != null) { if (file.ContentLength > 0) { string url = Path.Combine(Server.MapPath("~/Uploads/"), file.FileName); //路徑合併 file.SaveAs(url); } } return RedirectToAction("Upload"); } |
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Upload(多檔案上傳) |
[HttpPost] public ActionResult Upload(IEnumerable<HttpPostedFile> files) { foreach (var file in files) { if (file != null && file.ContentLength > 0) { string filePath = DateTime.Now.ToLongDateString() + file.FileName; string url = Path.Combine(Server.MapPath("~/Uploads/"), filePath); //路徑合併 file.SaveAs(url); } } return RedirectToAction("Upload"); } |