partial

问题 I'm having trouble getting traction on what the general ways data gets passed around from and is made available to partials. For example: I have a controller handing off an instance variable to a template that renders a partial: static_pages_controller.rb: def home @feed_items = current_user.feed end home.html.erb: <%= render 'shared/feed' %> _feed.html.erb: <%= render @feed_items %> Now, inside my User model is an instance method that reaching into the database to get her posts: user.rb: def

问题 I want to create a recursive menu with recursive elements. My first approach was to use Partial Views in order to re-use code.. Alas, when I run the code, it throws a "System.InvalidOperationException" "Stack empty" error. I am mapping data from a web service with AutoMapper, which results in the following entity: public interface INavigationItemContract { int Id { get; set; } string Title { get; set; } int ParentId { get; set; } string Url { get; set; } bool DisplayInMenu { get; set; }

问题 Update: My question was answered, but I wrote a blog post detailing exactly how I went about doing this: http://lathamcity.com/posts/ajaxInRails.html I have a page that shows a list of things based on a Ruby object. My goal is to make an Ajax call to get a new Ruby object and then update the list based on that. I thought that the way to do this was with partials. I make the entire list a partial file with the Rails instance variable in the code. Then I want the Ajax call to set the

问题 When I submit a form I have to save two objects to the database; however if there is a failure in between the first and second saves, I still see the first object in the database. Because I have enabled TransactionMiddleware in the main settings, I wanted (and was expecting) the failure of the request to roll back any database update that I had made as a result of this request. My code is as follows: def submit(request): form1 = Form1(request.POST) form2 = Form2(request.POST) obj1 = form1

问题 I am trying to bind to the results of a Linq-To-SQL query, which I have set to populate a graph. The graph is along the lines of Date along the X-Axis and Money along the Y-Axis. There are two-series, one for money in, and one for money out. Simple enough so far. I wanted to add a third series which is "balance of trade", i.e. the difference between income and outgoing. I created a partial class for this, which uses the fields in the generated code in order to calculate the correct figure.

问题 I have an Index page which has two partial views: login and register.I am using data model validation. Login.cshtml @model Project.ViewModel.UserModel <div style="position:inherit;"> @using (Html.BeginForm("_Login", "account")) { @Html.ValidationSummary(true) <div class="label">@Html.Label("Username")</div> <div class="field">@Html.TextBoxFor(m => m.Username)</div> <div class="error">@Html.ValidationMessageFor(model => model.Username)</div> <div class="label">@Html.Label("Password")</div>

问题 I have a document like this { "Field1": 1, "Field2": 2, "Field3": { Type: "TheMotherLoad" } } Which i want to convert into this class, but keeping field 3 "raw/as-is". public class Fields { public int Field1 { get; set; } public int Field2 { get; set; } public string Field3 { get; set; } } The result should be Field1 = 1, Field2 = 2, Field3 = "{ Type: "TheMotherLoad" }" Possible with Json.NET? 回答1: Field3 could be a JObject. When you need JSON just call Field3.ToString() 来源： https:/

问题 I am a little confused regarding the design patterns of ASP.NET MVC. I have a Masterpage including a partial view that renders breadcrumbs: <div id="header"> <strong class="logo"><a href="#">Home</a></strong> <% Html.RenderPartial("BreadCrumbs"); %> The thing is, I want the breadcrumb links to work both in production and in my dev environment. So my code in the partial view goes something like this: <p id="breadcrumbs"> You are here: <a href="http:// <% if (Request.Url.IsLoopback) Response

问题 The full error description is as per below: And I found a few similar question posted before: A and B But the question in A and B does not provide detail of problem description (perhaps we prompted the same error message but caused by different reason? I am not sure..). Any how, answer in A and B does not have good solution. So I decided to post the similar question with some more details. My problem is as per below: The Designer auto generate a new code (ErrSer1.Designer) which contain the

问题 I have a page that displays a lot of data, including Zend_Paginator. The page action is /po/fetch?id=someID . what i want to do is to pass the "id" parameter to zend paginationControl so the pagination links will be something like /po/fetch?id=someID&page=somePage . unfortunally i can't find anywhere explanation on how i can pass that parameter to the paginationControl. my call to paginationControl: echo $view->paginationControl($paginator, 'Sliding',$control, $params); where $params = array(