asp.net-mvc-3

问题 I'd like to set an error message for an email field after an exception has been caught in my controller: ... catch (EmailAlreadyExistsException emailAlreadyExistsException) { ModelState.AddModelError("Useraccount_Email", "This is an error message"); RegisterViewModel viewModel = new RegisterViewModel { Useraccount = useraccount, InformationMessages = InformationMessageHelper.GetInformationMessages() }; return PartialView(viewModel); } ... The error message should now be displayed in my view:

问题 I'd like to set an error message for an email field after an exception has been caught in my controller: ... catch (EmailAlreadyExistsException emailAlreadyExistsException) { ModelState.AddModelError("Useraccount_Email", "This is an error message"); RegisterViewModel viewModel = new RegisterViewModel { Useraccount = useraccount, InformationMessages = InformationMessageHelper.GetInformationMessages() }; return PartialView(viewModel); } ... The error message should now be displayed in my view:

问题 I am working with razor view engine in asp.net mvc3. Now, I need an input for a DateTime which should display the value in a fixed format (say dd-MMM-yyyy ). So I can do: [DisplayFormat(ApplyFormatInEditMode = true, DataFormatString = "{0:dd-MMM-yyyy}")] public DateTime StartDate { get; set; } And in the view: @Html.EditorFor(model => model.StartDate) But I need to add a class in the input. Which I think is not possible in EditorFor . So I could use @Html.TextBoxFor(model => model.StartDate,

问题 I have a senario where i have to check for a Username existance in database while doing a registration page. for this i have implemented a Remote Attribute for remote validation in my model [Remote("CheckUserNameAvaliable", "User", Httpmethod="Post")] public string Username {get; set;} and my method looks like this [HttpPost] public JsonResult CheckUserNameAvaliable(string UserName) { SessionUser currentUser = this.sessionHelper.GetCurrentUser(); User user = this.userService.GetByUsername

问题 i've define static class to enable paging : public static class Pager { public static IEnumerable<T> PageData<T>(this IEnumerable<T> source, int currentPage, int pageSize) { var sourceCopy = source.ToList(); if (sourceCopy.Count() < pageSize) { return sourceCopy; } return sourceCopy.Skip((currentPage - 1) * pageSize).Take(pageSize); } } and i want in my controller to do like : var pagedDataCourses = products.OrderBy(p => p.productName).PageData(currentPage, pageSize); so where i can put that

问题 As today's MVC3 released, I would like to ask if anyone had experienced problems in upgrading from MVC2 to MVC3 (without changing anything in the views) . I'm currently using EF4, Telerik extensions Should I upgrade, or should I wait ? 回答1: The lead developer on the project I'm currently on installed and upgraded MVC2 to MVC3 RC, and the project and we're using EF4 and Telerik. We updated from RC to the release this morning and discussed the update from MVC2 to MVC3 RC. After installation, he

问题 I am using MVC3, and have a Layout file that is common for all of my Views. In the layout file, I would like to show some information regarding the currently logged in user. I got it working now, but the only way I found out how to is to set some ViewBag fields in the actions methods, and pick them up in the layout file. This means that I will have to the the ViewBag fields from all my action methods, or at least make a method that sets them, and call this method from all my action methods.

问题 I am using MVC3, and have a Layout file that is common for all of my Views. In the layout file, I would like to show some information regarding the currently logged in user. I got it working now, but the only way I found out how to is to set some ViewBag fields in the actions methods, and pick them up in the layout file. This means that I will have to the the ViewBag fields from all my action methods, or at least make a method that sets them, and call this method from all my action methods.

问题 I'm creating a brand new MVC3 site. Client side validation enabled on the web.config <appSettings> <add key="ClientValidationEnabled" value="true"/> <add key="UnobtrusiveJavaScriptEnabled" value="true"/> </appSettings> Scenario #1: Output HTML generated after a failed (client side) validation: <span data-valmsg-replace="true" data-valmsg-for="UserName" class="field-validation-error"> <span htmlfor="UserName" generated="true" class="">Please enter an email address</span> </span> Note the

问题 I've got following display template for object (source): @model object @if (Model == null) { @ViewData.ModelMetadata.NullDisplayText } else if (ViewData.TemplateInfo.TemplateDepth > 1) { @ViewData.ModelMetadata.SimpleDisplayText } else { foreach (var prop in ViewData.ModelMetadata.Properties.Where(pm => pm.ShowForDisplay && !ViewData.TemplateInfo.Visited(pm))) { if (prop.HideSurroundingHtml) { @Html.Display(prop.PropertyName) } else { <div> <strong>@prop.GetDisplayName():</strong> @Html