MVC中的new AjaxOptions { OnSuccess }迁移core

MVC中提交表单会有成功后执行前端js的OnSuccess = "doResult"

@using (Ajax.BeginForm("ModifyPhoneOverseas", "ResumeUpdate", FormMethod.Post, new AjaxOptions { OnSuccess = "doResult" }))
    {

    }

在NET CORE里面new AjaxOptions { OnSuccess = "doResult" })又该怎么样写呢？

在ASP.NET Core中已经不再使用Ajax.BeginForm，而是使用Html.AjaxBeginForm。
完整的流程：
1.用以下命令安装包：

PM> Install-Package AspNetCore.Unobtrusive.Ajax

2.将这个包注册到Startup.cs：

public void ConfigureServices(IServiceCollection services)
{
    //...
    services.AddUnobtrusiveAjax(); 
    //services.AddUnobtrusiveAjax(useCdn: true, injectScriptIfNeeded: false);
    //...
}

public void Configure(IApplicationBuilder app)
{
    //...
    app.UseStaticFiles();

    //It is required for serving 'jquery-unobtrusive-ajax.min.js' embedded script file.
    app.UseUnobtrusiveAjax(); //It is suggested to place it after UseStaticFiles()
    //...
}

3.把js文件加到_Layout.cshtml里面：

<!--Place it at the end of body and after jquery-->
    @Html.RenderUnobtrusiveAjaxScript()
    <!-- Or you can reference your local script file -->

    @RenderSection("Scripts", required: false)
</body>
</html>

4.至于你所说的想知道如何实现new AjaxOptions { OnSuccess = "doResult" })，跟MVC是一样设置的，在ASP.NET Core中设置：

@{
    AjaxOptions ajaxOptions = new AjaxOptions
    {
        HttpMethod = "POST",
        OnSuccess="doResult"
        //other options....
    };

}

@using (Html.AjaxBeginForm("ActionName", "ControllerName", ajaxOptions))
{
    //other elements...
    <input type="submit"  value="Submit Details" />
}
//....