[英]Passing HTML table information from cshtml to method onpost cshtml.cs using PageModel
我正在使用 asp.net 核心和引导程序,当我选中和取消选中复选框时,我正在尝试更新我的表。 问题是,当我单击按钮保存更新表时,我想接收所有信息,但是当我尝试以某种方式执行此操作时,我的IList<OutputAccessRights> userAccessRights
返回 Count = 0。如何在不丢失所有内容的情况IList<OutputAccessRights> userAccessRights
传? 我可以使用 jquery、javascript 吗?
。CS:
public IActionResult OnPost(int id, string groupAccessName, bool chkDefaultGroup, IList<OutputAccessRights> userAccessRights, string returnUrl = null)
{
ReturnUrl = returnUrl;
else //Update
{
Security security = new Security();
security.GroupAccessUpdate(BellaMain.GlobalVariable.SystemID, Convert.ToInt16(groupAccessID), groupAccessName, false);
Update(Convert.ToInt16(groupAccessID), userAccessRights);
GroupAccessID = id;
GroupAccessName = groupAccessName;
return RedirectToAction("Group AccessDetails", "Form", new { id = GroupAccessID, searchString = SearchString, searchInt = SearchInt }).WithSuccess("Success!", "Updated item!");
}
return Page();
}
模型:
public class GroupAccessDetailsModel : PageModel
{
private readonly ILogger<GroupAccessDetailsModel> _logger;
public GroupAccessDetailsModel(ILogger<GroupAccessDetailsModel> logger)
{
_logger = logger;
}
public class OutputAccessRights
{
public byte MainMenuID { get; set; }
public byte SubMenuID { get; set; }
public byte OperationID { get; set; }
public string MainMenuDescription { get; set; }
public string SubMenuDescription { get; set; }
public string Operation { get; set; }
public bool ChkUserAccessRights { get; set; }
public bool ChkAddRight { get; set; }
public bool ChkUpdateRight { get; set; }
public bool ChkDelete { get; set; }
public bool FlagDefaultGroupAlreadySet { get; set; }
}
[BindProperty]
public IList<OutputAccessRights> UsersAccessRights { get; set; }
}
html:
@if (Model.UsersAccessRights != null)
{
<table class="table table-striped table-bordered dataTable tableAccessRights" name="userAccessRights" id="userAccessRights" style="width:100%">
<thead>
<tr>
<th>
MainMenu
</th>
<th>
SubMenu
</th>
<th>
Operation
</th>
</tr>
</thead>
<tbody>
@foreach (var item in Model.UsersAccessRights)
{
<tr>
<td>
@if (Model.GroupAccessID == 0)
{
<input type="checkbox" class="form-check-inline" name="@item.ChkUserAccessRights" id="chkUserAccessRights" asp-for="@item.ChkUserAccessRights" />
@Html.DisplayFor(modelItem => item.MainMenuDescription)
}
else
{
@if (Model.Details != true)
{
<input type="checkbox" class="form-check-inline" name="@item.ChkUserAccessRights" id="chkUserAccessRights" asp-for="@item.ChkUserAccessRights" />
@Html.DisplayFor(modelItem => item.MainMenuDescription)
<span class="text-danger"></span>
}
else
{
<input type="checkbox" class="form-check-inline" name="@item.ChkUserAccessRights" id="chkUserAccessRights" disabled readonly="readonly" />
@Html.DisplayFor(modelItem => item.MainMenuDescription)
}
}
</td>
<td>
@Html.DisplayFor(modelItem => item.SubMenuDescription)
</td>
<td>
@if (Model.GroupAccessID == 0)
{
<input type="checkbox" class="form-check-inline" name="@item.ChkAddRight" id="chkAddRight" asp-for="@item.ChkAddRight" />
<label for="chkAddRight">Insert</label>
}
else
{
@if (Model.Details != true)
{
<input type="checkbox" class="form-check-inline" name="@item.ChkAddRight" id="chkAddRight" asp-for="@item.ChkAddRight" />
<label for="chkAddRight">Insert</label>
<span class="text-danger"></span>
}
else
{
<input type="checkbox" class="form-check-inline" name="@item.ChkAddRight" id="chkAddRight" disabled readonly="readonly" asp-for="@item.ChkAddRight" />
<label for="chkAddRight">Insert</label>
}
}
@if (Model.GroupAccessID == 0)
{
<input type="checkbox" class="form-check-inline" name="@item.ChkDelete" id="chkDelete" asp-for="@item.ChkDelete" />
<label for="chkDelete">Delete</label>
}
else
{
@if (Model.Details != true)
{
<input type="checkbox" class="form-check-inline" name="@item.ChkDelete" id="chkDelete" asp-for="@item.ChkDelete" />
<label for="chkDelete">Delete</label>
<span class="text-danger"></span>
}
else
{
<input type="checkbox" class="form-check-inline" name="@item.ChkDelete" id="chkDelete" disabled readonly="readonly" asp-for="@item.ChkDelete" />
<label for="chkDelete">Delete</label>
}
}
@if (Model.GroupAccessID == 0)
{
<input type="checkbox" class="form-check-inline" name="@item.ChkUpdateRight" id="chkUpdateRight" asp-for="@item.ChkUpdateRight" />
<label for="chkUpdateRight">Update</label>
}
else
{
@if (Model.Details != true)
{
<input type="checkbox" class="form-check-inline" name="@item.ChkUpdateRight" id="chkUpdateRight" asp-for="@item.ChkUpdateRight" />
<label for="chkUpdateRight">Update</label>
<span class="text-danger"></span>
}
else
{
<input type="checkbox" class="form-check-inline" name="@item.ChkUpdateRight" id="chkUpdateRight" disabled readonly="readonly" asp-for="@item.ChkUpdateRight" />
<label for="chkUpdateRight">Update</label>
}
}
</td>
</tr>
}
</tbody>
</table><button type="submit" class="btn btn-primary" asp-page="Group AccessDetails" asp-route-userAccessRights="@Model.UsersAccessRights">@Localizer["Save"]</button>
}
http post 的基本原理意味着只有表单控件(输入、选择)被回发到服务器。
用户更改的任何内容都应回发到服务器,并重新集成到全新的 get 请求中。
所以模式是这样的:
在 POST / 表单提交之后,您必须从任何地方重新获取数据,这是无法回避的事实。
如果您没有将用户数据保存到数据库中,那么您只需要重新集成它。
编辑:
如果您真的想发布页面的整个状态,则必须将所有内容放入输入(隐藏类型以对用户隐藏)中,以便将其发送回服务器。
请记住,从输入返回的所有数据都是用户输入,不能相信是正确的。
编辑2:
简单的例子:
public ActionResult LoadPage()
{
var viewModel = service.GetViewModel();
return View(viewModel);
}
[HttpPost]
public ActionResult PostPage(MyViewModel postedViewModel)
{
service.UpdateData(postedViewModel);
// either:
var freshData = service.GetViewModel();
return View(freshData);
// or:
// this is my preferred method, as it means that pressing F5 will not resubmit the old page
return RedirectToAction("GetData");
}
// what I mean by integrating the data back into the fresh data:
[HttpPost]
public ActionResult PostWithIntegration(MyViewModel postedData)
{
var freshData = service.GetViewModel();
freshData.Update(postedData);
return View(freshData);
}
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