Blazor @onkeypress 文本框在 IE 中不起作用？

Question

I'm creating a server-side blazor application and have the following razor file.我正在创建一个服务器端 blazor 应用程序并具有以下 razor 文件。

@page "/test"
@using BlazorApp2.Data
@inject ViewModels.TestViewModel VM

<div>
    Search:
    <input id="search" type="text" @bind="VM.Search" @onkeypress="@VM.SearchChanged" />
    <span>@VM.Search</span>
</div>

ViewModels.TestViewModel: ViewModels.TestViewModel：

public string Search { get; set; }

public async void SearchChanged()
{
    // Break point set but not hit?
}

Typing in the text box "search" doesn't hit the break point set in SearchChanged() when in IE?在 IE 中键入“搜索”文本框不会达到SearchChanged()中设置的断点？ It works in Chrome.它适用于 Chrome。

Answer 1

I think you can miss registering TestViewModel in Startup.ConfigureServices我认为您可能会错过在 Startup.ConfigureServices 中注册 TestViewModel

You can visit this link: https://docs.microsoft.com/en-us/aspnet/core/tutorials/build-your-first-blazor-app?view=aspnetcore-3.0 to refer more.您可以访问此链接： https://docs.microsoft.com/en-us/aspnet/core/tutorials/build-your-first-blazor-app?view=aspnetcore-3.0以参考更多信息。

If you want Blazor run on IE11, please add Polyfills.如果您希望 Blazor 在 IE11 上运行，请添加 Polyfills。 Visit this link: https://github.com/Daddoon/Blazor.Polyfill to refer more.访问此链接： https://github.com/Daddoon/Blazor.Polyfill以参考更多信息。

You can download Polyfills at here: https://github.com/Daddoon/Blazor.Polyfill/releases你可以在这里下载 Polyfills： https://github.com/Daddoon/Blazor.Polyfill/releases

Here is a sample following your question.这是您的问题之后的示例。 Hope to help, my friend:))希望对你有所帮助，我的朋友：））

1) Models 1) 型号

namespace BlazorApp.Models
{
    public class TestViewModel
    {
        public string Search { get; set; }

        public async void SearchChanged()
        {
            // Break point set but not hit?
            Search = "Hello world";            
        }
    }
}

2) In Startup class 2) 在启动 class

public void ConfigureServices(IServiceCollection services)
        {
            services.AddRazorPages();
            services.AddServerSideBlazor();
            services.AddSingleton<WeatherForecastService>();
            services.AddSingleton<Models.TestViewModel>();
        }

3)View 3)查看

@page "/testview"
@inject Models.TestViewModel VM

<h1>Test Blazor</h1>
<div>
    Search:
    <input id="search" type="text" @bind="VM.Search" @onkeypress="@VM.SearchChanged" />
    <span>@VM.Search</span>
</div>

4) In _Host view 4) 在 _Host 视图中

@page "/"
@namespace BlazorApp.Pages
@addTagHelper *, Microsoft.AspNetCore.Mvc.TagHelpers

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>BlazorApp</title>
    <base href="~/" />
    <link rel="stylesheet" href="css/bootstrap/bootstrap.min.css" />
    <link href="css/site.css" rel="stylesheet" />
</head>
<body>
    <app>
        @(await Html.RenderComponentAsync<App>(RenderMode.ServerPrerendered))
    </app>

    <script src="~/scripts/blazor.polyfill.min.js"></script>
    <script src="_framework/blazor.server.js"></script>
</body>
</html>

Blazor @onkeypress 文本框在 IE 中不起作用？

问题描述

1 个解决方案

解决方案1
2 2019-10-11 07:24:59

Blazor @onkeypress 文本框在 IE 中不起作用？

问题描述

1 个解决方案

解决方案1 2 2019-10-11 07:24:59

解决方案1
2 2019-10-11 07:24:59