Can a WebGrid be made editable?
Make new View Edit.cshtml and take Hiddenfield for id that will pass to madel for the update data.
public ActionResult Edit(WebdridDBModel model, string id)
{
var editItem = from e in dc.EDetails where e.Id ==Convert.ToInt32(id) select e;
var editList = editItem.ToList();
model.FirstName= editList[0].FirstName;
model.LastName=editList[0].LastName;
model.Salary =Convert.ToInt32( editList[0].Salary);
return View(model);
}
public ActionResult EditSubmit(WebdridDBModel model, string id)
{
EDetail ed = dc.EDetails.Single(P=>P.Id==model.Id);
ed.FirstName = model.FirstName.Trim();
ed.LastName = model.LastName.Trim();
ed.Salary = model.Salary.ToString();
dc.SubmitChanges();
return RedirectToAction("Index");
}
Related
I want to pass class parameter in ActionAsPdf
public ActionResult Pdf(long Id)
{
var printclass = this._printService.GetPrintResults(Id);
return new ActionAsPdf("Content", new {Id = Id})
{
FileName = "abc.pdf"
}
}
public ActionResult Content(long Id)
{
//viewModel
return View("Index", viewModel);
}
It's working fine if Id alone is passed. But I want the printclass (var printclass of type class) to be passed in as the parameter as well to the Content.
I am having problem when I try to pass the class like below.
return new ActionAsPdf("Content", new {Id = Id, printclass= printclass})
{
FileName = "abc.pdf"
}
public ActionResult Content(long Id, printDTO abc)
{
var temp = abc;
//viewModel
return View("Index", viewModel);
}
The value of temp is null in the above case.
Use ViewAsPdf() instead. ActionAsPdf() accepts a RouteValueDictionary parameter.
The following code is taken from the tutorial: http://www.asp.net/mvc/tutorials/getting-started-with-aspnet-mvc3/cs/examining-the-edit-methods-and-edit-view which shows how ASP.net MVC 3 can be used to manage a movie database.
In the tutoral, a list object is added to the controller class that contains every movie genre that exists in the database. This list is then passed to a drop-down in the view enabling the database to be searched by genre.
Controller: (code related to movie genre in bold)
public ActionResult SearchIndex(string movieGenre, string searchString)
{
var GenreLst = new List<string>();
var GenreQry = from d in db.Movies
orderby d.Genre
select d.Genre;
GenreLst.AddRange(GenreQry.Distinct());
ViewBag.movieGenre = new SelectList(GenreLst);
var movies = from m in db.Movies
select m;
if (!String.IsNullOrEmpty(searchString))
{
movies = movies.Where(s => s.Title.Contains(searchString));
}
if (string.IsNullOrEmpty(movieGenre))
return View(movies);
else
{
return View(movies.Where(x => x.Genre == movieGenre));
}
}
What I want to do is enhance this further so that the movies can be searched by price as well as genre. I know I can re-use the much of the same code to do this. I think I need to create a new class that the controller class can pass either the genre or price. Is this correct? IF so, I'd appreciate an example. Thanks.
Update/Clarification:
I want to avoid repeating the code for both genre and price as below:
public ActionResult SearchIndex(string movieGenre, string searchString,float moviePrice)
{
var GenreLst = new List<string>();
var GenreQry = from d in db.Movies
orderby d.Genre
select d.Genre;
GenreLst.AddRange(GenreQry.Distinct());
ViewBag.movieGenre = new SelectList(GenreLst);
var PriceLst = new List<string>();
var PriceQry = from d in db.Movies
orderby d.Genre
select d.Genre;
PriceLst.AddRange(GenreQry.Distinct());
ViewBag.moviePrice = new SelectList(PriceLst);
var movies = from m in db.Movies
select m;
if (!String.IsNullOrEmpty(searchString))
{
movies = movies.Where(s => s.Title.Contains(searchString));
}
if (string.IsNullOrEmpty(movieGenre))
return View(movies);
else
{
return View(movies.Where(x => x.Genre == movieGenre));
}
if (string.IsNullOrEmpty(moviePrice))
return View(movies);
else
{
return View(movies.Where(x => x.Genre == moviePrice));
}
}
You just have to insert a text box in the view to get price value. Then receive this value at action and modify the query to get desired results.
like this:
#Html.ActionLink("Create New", "Create")
#using (Html.BeginForm()){
<p>Genre: #Html.DropDownList("movieGenre", "All")
Title: #Html.TextBox("SearchString")
Price: #Html.TextBox("Price")
<input type="submit" value="Filter" /></p>
}
And in the action method you are using the code below to populate the dropdownlist with genre values. You need not do the same for price value.
var GenreLst = new List<string>();
var GenreQry = from d in db.Movies
orderby d.Genre
select d.Genre;
GenreLst.AddRange(GenreQry.Distinct());
ViewBag.movieGenre = new SelectList(GenreLst);
And in your action method you just have to use the value of price to filter data
public ActionResult SearchIndex(string movieGenre, string searchString,float price)
{
var GenreLst = new List<string>();
var GenreQry = from d in db.Movies
orderby d.Genre
select d.Genre;
GenreLst.AddRange(GenreQry.Distinct());
ViewBag.movieGenre = new SelectList(GenreLst);
var movies = from m in db.Movies
select m;
if (!String.IsNullOrEmpty(searchString))
{
movies = movies.Where(s => s.Title.Contains(searchString));
}
if (string.IsNullOrEmpty(movieGenre))
return View(movies);
else
{
return View(movies.Where((x => x.Genre == movieGenre) &&(x => x.Price== price)));
}
}
You can do it in so many different ways while all are correct but it depends on the complexity of your project. Basically you don't want to over-engineer a simple program. But in general you should move all of your logic to a separate class and use your actions for creating and calling the right logic class:
public class GetMoviesRequest
{
public string Name { get; set; }
public float? Price { get; set; }
}
public class MoviesLogic
{
private List<Movie> Movies;
public IEnumerable<Movie> Get(GetMoviesRequest request)
{
IEnumerable<Movie> filtered = Movies.AsQueryable();
if (!string.IsNullOrEmpty(request.Name))
{
//Filter by name
filtered = filtered.Where(m => m.Name == request.Name);
}
if (request.Price.HasValue)
{
//Filter by value
filtered = filtered.Where(m => m.Price == request.Price);
}
return filtered;
}
}
public class MyController
{
public ActionResult SearchIndex(string movieGenre, string searchString)
{
var logic = new MoviesLogic();
var movies = logic.Get(new GetMoviesRequest() { Name = searchString } )
///do stuff with movies
}
}
I have a MVC3 Razor form. It have a radiobutton list and some another text fields. When I press submit controller post action get the view model, which have all fields seted correctly, except RegionID.
Model:
namespace SSHS.Models.RecorderModels
{
public class CreateViewModel
{
...
public int RegionID { get; set; }
...
}
}
Controller:
namespace SSHS.Controllers
{
public class RecorderController : Controller
{
...
public ActionResult Create()
{
EntrantDBEntities db = new EntrantDBEntities();
List Regions = new List(db.Region);
List Schools = new List(db.School);
List Settlements = new List(db.settlement);
CreateViewModel newEntr = new CreateViewModel();
ViewBag.Regions = Regions;
ViewBag.Schools = Schools;
ViewBag.Settlements = Settlements;
return View(newEntr);
}
[HttpPost]
public ActionResult Create(CreateViewModel m)
{
EntrantDBEntities db = new EntrantDBEntities();
Entrant e = new Entrant()
{
FatherName = m.FatherName,
Lastname = m.LastName,
LocalAddress = m.LocalAddress,
Name = m.Name,
RegionID = m.RegionID,
PassportID = m.PassportID,
SchoolID = m.SchoolID,
SettlementID = m.SattlementID,
TaxID = m.TaxID,
};
db.Entrant.AddObject(e);
db.SaveChanges();
return RedirectToAction("Index");
}
}
View:
#model SSHS.Models.RecorderModels.CreateViewModel
#using SSHS.Models
#using (Html.BeginForm("Create", "Recorder", FormMethod.Post))
{
#foreach (Region item in ViewBag.Regions)
{
#Html.RadioButtonFor(m => m.RegionID, item.RegionID)
#Html.Label(item.RegionName) - #item.RegionID
}
...
...
}
The Create(CreateViewModel m) method gets data from all textboxes normaly, but RegionID always is 0.
How are you planning to fill radio button with int ? It have two states: checked and not. Could you tell us, what are you trying to do? Make radio group? Use bool for RadioButtonFor.
Added:
You need to write something like this: CheckboxList in MVC3.0 (in your example you will have radio buttons)
I need some help with this one....
I have this simple model:
public class Candidat
{
public string LoginEmail { get; set; }
[Required]
[DataType(DataType.Text)]
[Display(Name = "Prénom")]
public string FirstName { get; set; }
[Required]
[DataType(DataType.Text)]
[Display(Name = "Nom")]
public string LastName { get; set; }
}
I also have a controller like this:
[Authorize]
public ActionResult Index(Candidat model)
{
if (model.LoginEmail == null)
{
model = null;
using (var db = new rhDB())
{
MembershipUser user = Membership.GetUser();
if (user != null)
{
model = (from m in db.Candidates where m.LoginEmail == user.Email select m).SingleOrDefault();
}
if (model == null)
{
model = new Candidat();
model.LoginEmail = user.Email;
model.Email = user.Email;
}
}
}
return View("MyProfileCandidate", model);
}
As you can see, I check if the user as an existing record in the database. If not, I create a new instance of the model and set some default values... Then, I pass it to an EditView.
The problem is that my view show with the error validation messages... For all required fields...
Of course, this is because those fields are empty and required... It seems like the view think I am posting back an invalid model... Is there a way to hide those validation message ?
Try clearing the model state if you intend to modify some of the values on your model in the POST action:
[Authorize]
public ActionResult Index(Candidat model)
{
if (model.LoginEmail == null)
{
model = null;
using (var db = new rhDB())
{
MembershipUser user = Membership.GetUser();
if (user != null)
{
ModelState.Clear();
model = (from m in db.Candidates where m.LoginEmail == user.Email select m).SingleOrDefault();
}
if (model == null)
{
ModelState.Clear();
model = new Candidat();
model.LoginEmail = user.Email;
model.Email = user.Email;
}
}
}
return View("MyProfileCandidate", model);
}
The reason for this is that HTML helpers will use model state values that were initially posted instead of those in the model. You could also clear individual fields in the model state: ModelState.Remove("FirstName");.
I write a ASP.NET MVC 3 project for service a video store. I add a CRUD MovieController class and add a search feature in it. But I receive an error: "The name 'movieGenre' does not exist in the current context" for the method. Here is the code:
public ActionResult SearchIndex(string searchString)
{
var GenreList = new List<string>();
var GenreQuery = from d in db.Movies
orderby d.Genre
select d.Genre;
GenreList.AddRange(GenreQuery.Distinct());
ViewBag.movieGenre = new SelectList(GenreList);
var movies = from m in db.Movies select m;
if (!String.IsNullOrEmpty(searchString))
{
movies = movies.Where(s => s.Title.Contains(searchString));
}
if (string.IsNullOrEmpty(ViewBag.movieGenre))
{
return View(movies);
}
else
{
return View(movies.Where(x => x.Genre == movieGenre));
}
return View(movies);
}
For the last movieGenre I'm receiving this error.
If you want do use a select list you have to use ViewData instead of a ViewBag.
ViewData["Genre"] = new SelectList(GenreList);
There is no movieGenre variable.
You mean ViewBag.movieGenre.
You have an error in method declaration.
You have:
public ActionResult SearchIndex(string searchString)
Should be:
public ActionResult SearchIndex(string movieGenre, string searchString)