I am Using asp.net mvc 5. I want to pass array of string from view to controller without using Ajax. Can Anyone help?
This is the controller, value is to be gotten in packagelist[]
public ActionResult Create(Business business, string loc, string serv, string[] packagelist)
{
try
{
if (ModelState.IsValid)
{
var a = locationIds;
business.ServiceId = db.Services.Where(x => x.Title ==serv).Select(x => x.Id).SingleOrDefault();
business.LocationId = db.Locations.Where(x => (x.Title + " (" + x.State + "), " + x.PostalCode)==loc).Select(x => x.Id).SingleOrDefault();
db.Businesses.Add(business);
db.SaveChanges();
return RedirectToAction("Index");
}
else
{
foreach(var error in ModelState.Values)
{
foreach(var er in error.Errors)
ModelState.AddModelError("", er.Exception.ToString());
}
}
ViewData["Packages"] = db.BusinessPackages.Select(x => new SelectListItem
{
Text = x.Package,
});
return View(business);
}
catch(Exception ex)
{
ModelState.AddModelError("", ex);
return View(business);
}
}
Have created an hidden input on view
<input type="hidden" name="packagelist" id="packagelist" value="" />
Then set the value of this hidden field via this function
$("#theform").submit(function (e) {
e.preventDefault();
var locdiv=$("#maindiv");
var locations = locdiv.children();
var loc = [];
for (var i = 0; i < locations.length; i++)
{
loc.push(locations.eq(i).text());
}
// SaveLocations(loc);
$("#packagelist").val(loc);
$("#theform").submit();
Now main problem is that when I set value of the input via Jquery and submit it to the controller, controller is considering the array of values as single value.
To receive an array as param in controller, your inputs need specific naming
<input type="hidden" name="packagelist[0]" id="packagelist_0_" value="" />
<input type="hidden" name="packagelist[1]" id="packagelist_1_" value="" />
<input type="hidden" name="packagelist[2]" id="packagelist_2_" value="" />
...
<input type="hidden" name="packagelist[x]" id="packagelist_x_" value="" />
I think you can use cookies.
In JS,
document.cookie = "CookiesName=" + value + "; " + "365;path=/";
In Controller,
var data = Request.Cookies["CookiesName"]
Related
I'm following this tutorial to create a modified version of a blog. In this case, the "posts" are the same things as "projects," the "tags" are called "technologies," and the comments are all the same. In this case, the create new post/project function also should be able to update existing posts/projects. When I click submit, however, editing an old post, it simply creates a new one.
Here is my controller:
[Authorize]
[HttpPost]
[ValidateAntiForgeryToken]
[ValidateInput(false)]
public ActionResult Update(int? p, string title, string shortDescription, string longDescription, DateTime dateTime, string technologies)
{
Project project = GetProject(p);
if (!User.IsInRole("ChapterAdvisor") || !(User.Identity.GetFirstName() + " " + User.Identity.GetLastName()).Equals(project.ProjectLeader))
{
RedirectToAction("Index");
}
project.Title = title;
project.ShortDescription = shortDescription;
project.LongDescription = longDescription;
project.TimeCreated = dateTime;
project.ProjectLeader = User.Identity.GetFirstName() + " " + User.Identity.GetLastName();
project.Technologies.Clear();
technologies = technologies ?? string.Empty;
string[] technologyNames = technologies.Split(new char[] {' '}, StringSplitOptions.RemoveEmptyEntries);
foreach (string technologyName in technologyNames)
{
project.Technologies.Add(GetTechnology(technologyName));
}
if (!p.HasValue)
{
model.Projects.Add(project);
}
try
{
model.SaveChanges();
}
catch (System.Data.Entity.Validation.DbEntityValidationException dbEx)
{
Exception raise = dbEx;
foreach (var validationErrors in dbEx.EntityValidationErrors)
{
foreach (var validationError in validationErrors.ValidationErrors)
{
string message = string.Format("{0}:{1}",
validationErrors.Entry.Entity.ToString(),
validationError.ErrorMessage);
// raise a new exception nesting
// the current instance as InnerException
raise = new InvalidOperationException(message, raise);
}
}
throw raise;
}
return RedirectToAction("Details", new { p = project.Id });
}
public ActionResult Edit(int? p)
{
Project project = GetProject(p);
StringBuilder technologyList = new StringBuilder();
foreach (Technology technology in project.Technologies)
{
technologyList.AppendFormat("{0} ", technology.Name);
}
ViewBag.Technologies = technologyList.ToString();
return View(project);
}
private Technology GetTechnology(string technologyName)
{
return model.Technologies.Where(x => x.Name == technologyName).FirstOrDefault() ?? new Technology() { Name = technologyName };
}
private Project GetProject(int? id) => id.HasValue ? model.Projects.Where(x => x.Id == id).First() : new Project() { Id = -1 };
And this is my view:
<form action="#Href("~/Projects/Update")" method="post" id="postForm">
#Html.AntiForgeryToken()
#if (Model.Id != -1)
{
<input type="hidden" value="#Model.Id" />
}
#{ DateTime dateTime = Model.TimeCreated.Year > 2000 ? Model.TimeCreated : DateTime.Now; }
<input type="text" name="dateTime" value="#dateTime" /> Date<br />
<input type="text" name="title" value="#Model.Title" /> Project Name<br />
#Html.DropDownListFor(m => m.Technologies, new SelectList(new List<Object> { new { value = "Animation", text = "Animation" }, new { value = "Robotics", text = "Robotics" }, new { value = "Architecture", text = "Architecture" }, new { value = "CAD", text = "CAD" }, new { value = "Websites", text = "Websites" }, new { value = "Games", text = "Games" }, new { value = "Biotechnology", text = "Biotechnology" }, new { value = "Club", text = "Club" }, new { value = "Other", text = "Other" } }, "value", "text"), new { #style = "border: 1px solid #e8e8e8;padding: 0.5em 1.07em 0.5em;background: #f5f5f5;font-size: 0.875rem;border-radius: 5px;width: 100%;line-height: 1.43;min-height: 3.5em;" })
<textarea name="shortDescription" rows="5" cols="80">#Model.ShortDescription</textarea><br />
<textarea name="longDescription" rows="10" cols="80">#Model.LongDescription</textarea><br />
<input type="submit" name="submit" value="Save Changes" />
</form>
Any ideas why it is creating a new "project" instead of updating the one defined by the variable passed in the url?
Every post from that form is being treated as a "new" record because it doesn't contain the ID from an existing record. So the logic always assumes it's new.
This is because the hidden input isn't included in the POST data because it has no name:
<input type="hidden" value="#Model.Id" />
It looks like your action expects the ID value to be called "p":
<input type="hidden" name="p" value="#Model.Id" />
I am new in MVC asp.net i am developing a project where i want to add floors sequence wise. Want to start sequence from 0.
Message=LINQ to Entities does not recognize the method 'NTB.Floor LastOrDefault[Floor](System.Linq.IQueryable1[NTB.Floor], System.Linq.Expressions.Expression1[System.Func`2[NTB.Floor,System.Boolean]])' method, and this method cannot be translated into a store expression.
Controller:
public ActionResult Create(int id)
{
var cfloorno = 0;
//if (bid > 0)
//{
var lastfloor = db.Floors.Last(x => x.BuildingId == id);
if (lastfloor != null)
{
cfloorno = lastfloor.FloorNo.GetValueOrDefault() + 1;
}
//}
var building = db.Buildings.ToList();
ViewBag.Building = building;
var type = db.FloorTypes.ToList();
ViewBag.Type = type;
ViewBag.CurrentFloor = cfloorno;
ViewBag.buildingid = id;
return View();
}
[HttpPost]
public ActionResult Create(Floor f)
{
using (db)
{
db.Floors.Add(f);
db.SaveChanges();
}
return RedirectToAction("List");
}
View:
<input type="hidden" name="BuildingId" value="#ViewBag.buildingid" />
<div class="row">
<label class="col-sm-2 control-label">Floor #</label>
<div class="col-sm-10">
<input class="form-control" name="FloorNo" value="#ViewBag.CurrentFloor" disabled type="number">
#Html.ValidationMessageFor(model => model.FloorNo)
</div>
</div>
I am working on a simple image upload site in which users will have the ability to post comments on the images uploaded to the site, whenever posting a comment I am given this error :
The model item passed into the dictionary is of type '<>f__AnonymousType1`1[System.Int32]', but this dictionary requires a model item of type 'SilkMeme.Models.Meme'.
I know it has something to do with the model being defined at the top of my view being different to the one I am sending the post request to but I'm not entirely sure how to fix it
View
#model SilkMeme.Models.Meme
....
#using (Html.BeginForm("Comment", "Memes", new { id = Model.SilkId }))
{
<label for="thought">Thoughts?</label>
<input type="text" name="thought"/>
<label for="rating">Rating?</label>
<input name="rating" type="range" min="0" max="10" step="1" />
<input type="submit" value="Post Thoughts" />
}
<div class="thoughts">
#foreach (var c in ViewBag.thoughts)
{
<p>- #c.ThoughtWords , #c.ThoughtRating / 10 meme</p>
}
</div>
Controller
public ActionResult Details(int? id)
{
var thoughts = from comment in db.Thoughts where comment.SilkId == id select comment;
ViewBag.thoughts = thoughts;
if (id == null)
{
return new HttpStatusCodeResult(HttpStatusCode.BadRequest);
}
Meme meme = db.Memes.Find(id);
if (meme == null)
{
return HttpNotFound();
}
return View(meme);
}
[HttpPost]
public ActionResult Comment(int id)
{
int thoughtid = (from m in db.Thoughts select m).OrderByDescending(e => e.ThoughtId).FirstOrDefault().ThoughtId + 1;
if (Request["thought"].ToString() != "")
{
Thought thought = new Thought()
{
ThoughtId = thoughtid,
SilkId = id,
Meme = db.Memes.Find(id),
ThoughtWords = Request["thought"],
ThoughtRating = Int32.Parse(Request["rating"])
};
db.Thoughts.Add(thought);
}
return View("Details", new { id = id });
}
This line.
return View("Details", new { id = id });
It is basically passing an anonymous object with Id property to your view which is strongly typed to Meme type and expects an object of Meme class.
If you save your data successfully, Ideally,you should do a redirect to the GET action (following PRG pattern)
[HttpPost]
public ActionResult Comment(int id)
{
int thoughtid = (from m in db.Thoughts select m)
.OrderByDescending(e => e.ThoughtId).FirstOrDefault().ThoughtId + 1;
if (Request["thought"].ToString() != "")
{
Thought thought = new Thought()
{
ThoughtId = thoughtid,
SilkId = id,
Meme = db.Memes.Find(id),
ThoughtWords = Request["thought"],
ThoughtRating = Int32.Parse(Request["rating"])
};
db.Thoughts.Add(thought);
db.SaveChanges();
}
return RedirectToAction("Details", new { Id=id });
}
Also, I recommend using MVC Modelbinding to read the submitted form data. You will find a ton of examples on stackoverflow to do that. When using ModelBinding, you can return the posted view model back to the view (with an error message if needed) and the ValidationSummary /ValidationMessgeFor helper methods can show an error message to user as needed.
Good evening, I'm using the api bootstrap fileinput and I wonder if you can return a value with ContetResult and uses it in my View.
my Test Controller method ContentResult (just a test):
public ContentResult upload()
{
string name = "";
for (int i = 0; i < Request.Files.Count; i++)
{
HttpPostedFileBase file = Request.Files[i];
name = file.FileName;
}
return Content("{\"name\":\"" + name + "\"}", "application/json");
}
and my View:
<input id="input-701" name="kartik-input-701[]" type="file" multiple=true class="file-loading" />
<input type="text" class="file_name" />
<script type="text/javascript">
$("#input-upload").fileinput({ 'showUpload': true, 'previewFileType': 'any' });
$("#input-701").fileinput({
uploadUrl: '#Url.Action("upload", "Home")', // server upload action
uploadAsync: false,
maxFileCount: 50,
sucess: function (e, data) {
$('.file_name').html(data.result.name);
}
});
</script>
so I want to do something like this illustrative atributte: sucess
Thanks for the help!
Just Insert value in textbox
$('.file_name').val(data.result.name);
Client side code:
<form action="api/MyAPI" method="post" enctype="multipart/form-data">
<label for="somefile">File</label> <input name="somefile" type="file" />
<input type="submit" value="Submit" />
</form>
And how to process upload file with mvc web-api,have some sample code?
HTML Code:
<form action="api/MyAPI" method="post" enctype="multipart/form-data">
<label for="somefile">File</label>
<input name="somefile" type="file" />
<input type="submit" value="Submit" />
</form>
Controller
// POST api/MyAPI
public HttpResponseMessage Post()
{
HttpResponseMessage result = null;
var httpRequest = HttpContext.Current.Request;
if (httpRequest.Files.AllKeys[0] == "image")
{
if (httpRequest.Files.Count > 0)
{
var docfiles = new List<string>();
foreach (string file in httpRequest.Files)
{
var postedFile = httpRequest.Files[file];
var filePath = HttpContext.Current.Server.MapPath("~/Images/" + postedFile.FileName);
postedFile.SaveAs(filePath);
docfiles.Add(filePath);
}
result = Request.CreateResponse(HttpStatusCode.Created, docfiles);
}
}
else
{
result = Request.CreateResponse(HttpStatusCode.BadRequest);
}
return result;
}
try below link
this link use for me hopefully it will work you
http://www.asp.net/web-api/overview/advanced/sending-html-form-data,-part-2
You can use ApiMultipartFormFormmatter to upload file to web api 2.
By using this library, you can define a view model to get parameters submitted from client-side. Such as:
public class UploadFileViewModel
{
public HttpFile Somefile{get;set;}
}
And use it in your Api controller like this:
public IHttpActionResult Upload(UploadFileViewModel info)
{
if (info == null)
{
info = new UploadFileViewModel();
Validate(info);
}
if (!ModelState.IsValid)
return BadRequest(ModelState);
return Ok();
}
Nested objects can be parsed by this library.