@foreach (string city in Cities) { <option value="@city" selected="@(city == SelectedCity)"> @city </option> } </select> </div> @code { [Inject] public DataContext Context { get; set; } public IEnumerable<Person> People => Context.People.Include(p => p.Department).Include(p ...
CodeBehindComponent.razor.cs public partial class CodeBehindComponent { [Parameter] public string Text { get; set; } } 它与前两个示例的代码相同–我们只是将其分为两个文件。关键是partial class。它允许从多个文件中编译单个class。在本例中,有我们的partial class和自动生成的CodeBehindComponent.razor文件。
it is written much differently and at first glance may not be obvious. To use dependency injection in a code-behind file we'll use the[Inject]attribute and apply it to a property of the type we would like to inject, ex:[Inject] MyType MyProp ...
cs @page "/" @using MyBlog.Data.Interfaces @using MyBlog.Data.Models @inject IMyBlogApi api @code{ protected async Task AddSomePosts() { for (int i = 1; i <= 10; i++) { await api.SaveBlogPostAsync(new BlogPost() { PublishDate = DateTime.Now, Title = $"Blog post {i}", ...
The value of this Boolean property is set in the code behind (.cshtml.cs) page.The City dropdown list inside the form is binding to our Cities collection in the database with the help of cityList variable. The cityList will be populated as the application boots up....
Injecting web content inside a WPF app does not need to be a one-way street—the host app and the web content caninteract. The WPF host can listen in on lifecycle events raised by WebView2 and inject JavaScript code into WebView2 controls at runtime. One can also enable communications ...
@inject IJSRuntime JS <h2>Measure Latency</h2> @if (latency is null) { <span>Calculating...</span> } else { <span>@(latency.Value.TotalMilliseconds)ms</span> } @code { private DateTime startTime; private TimeSpan? latency; protected override async Task OnAfterRenderAsync(bool f...
You can easily interact with and inspect components, trigger event handlers, provide cascading values, inject services, mock IJsRuntime, and perform snapshot testing. Cropper.Blazor - Cropper.Blazor is a component that wraps around Cropper.js for cropping images in Blazor. Support Blazor Server, ...
We simplify the navigation in NavMenu.razor. We will make the styling even simpler, by removing the usage of NavLink's and all of the code-behind. It looks like this now: We remove some markup from Index.razor as well. Here is its final look for part one: and we specify in program...
…then remove the code-behind in the@codeblock inCounter.razor, inject the counter service and data-bind directly: @inject CounterService Svc <h1>Counter</h1> <p>Current count: @Svc.Count</p> <buttonclass="btn btn-primary"@onclick="Svc.Increment">Click me</button> ...