C# Razor页面:在导航OnGetAsync时向传递多个参数
我从事Razor页面项目,该项目表示模型C# Razor页面:在导航OnGetAsync时向传递多个参数,c#,asp.net-core,razor-pages,C#,Asp.net Core,Razor Pages,我从事Razor页面项目,该项目表示模型列表和记录: public class List { public int ID { get; set; } [StringLength(25, MinimumLength = 3, ErrorMessage = "Title should be in range between 3 and 25")] [Display(Name = "Title")] public string Caption { get; set;
列表
和记录
:
public class List
{
public int ID { get; set; }
[StringLength(25, MinimumLength = 3, ErrorMessage = "Title should be in range between 3 and 25")]
[Display(Name = "Title")]
public string Caption { get; set; }
public string UserId { get; set; }
public User User { get; set; }
public ICollection<Record> Records { get; set; }
}
public class Record
{
public int ID { get; set; }
[StringLength(25, MinimumLength = 3, ErrorMessage = "Word should be in range between 3 and 25")]
[Display(Name = "Title")]
public string Word { get; set; }
[StringLength(30, MinimumLength = 3, ErrorMessage = "Translation should be in range between 3 and 30")]
public string Translation { get; set; }
public int ListId { get; set; }
public List List { get; set; }
}
记录/详细信息(我要导航的页面)中方法OnGetAsync
的签名应如下所示:
<a asp-page="./Details" asp-route-id="@item.ID,@item.ListId">Details</a>
public async Task<IActionResult> OnGetAsync(int? id, int? listId) {...}
@page "/Lists/{id}/Records/Details/"
<a asp-page="./Details" asp-route-id="@item.ID" asp-route-listId="@item.ListId">Details</a>
但它不起作用
如果我这样定义@page Records/Details.cshtml
:
<a asp-page="./Details" asp-route-id="@item.ID,@item.ListId">Details</a>
public async Task<IActionResult> OnGetAsync(int? id, int? listId) {...}
@page "/Lists/{id}/Records/Details/"
<a asp-page="./Details" asp-route-id="@item.ID" asp-route-listId="@item.ListId">Details</a>
方法
public async Task<IActionResult> OnGetAsync(int? id, int? listId)
公共异步任务OnGetAsync(int?id,int?listId)
转到断点,但是,两个参数都为null,URL如下所示:
这一点您已经差不多做到了,但您需要拆分这些管线参数,并使用类似以下内容:
<a asp-page="./Details" asp-route-id="@item.ID,@item.ListId">Details</a>
public async Task<IActionResult> OnGetAsync(int? id, int? listId) {...}
@page "/Lists/{id}/Records/Details/"
<a asp-page="./Details" asp-route-id="@item.ID" asp-route-listId="@item.ListId">Details</a>
详细信息
您可以使用
asp-route-*
设置参数,其中*表示参数本身的名称,并用于每个单独的参数 如果需要指定多个管线值,可以使用锚定标记辅助对象上的asp所有管线数据
属性:
@{
var routeValues = new Dictionary<string, string>
{
{ "listId", item.ListId },
{ "id", item.ID }
};
}
<a asp-page="./Details" asp-all-route-data="routeValues">Click</a>
@{
var routeValues=新字典
{
{“listId”,item.listId},
{“id”,item.id}
};
}
点击
这在本手册中有介绍。