如何解决将下拉列表值从View传递到控制器
我在“请求表”内的视图中创建了一个下拉列表,该列表成功地从数据库中将数据填充为“分析师列表”。
但是,当我单击控制器上的“接受”按钮时,我仍然无法传递表格中下拉列表中的选定值。
RequestViewModel 。
public class RequestViewModel
{
public IEnumerable<Request> Requests { get; set; }
public IEnumerable<ApplicationUser> AnalystList { get; set; }
public Institution Institution { get; set; }
public string selectedAnalyst { get; set; }
}
RequestController
public async Task<IActionResult> ApproveRequest(int id)
{
<--------- Lines of Code --------->
if (Req.Type == SD.TypeRegister)
{
Req.Institution.Status = SD.StatusApproved;
Req.Institution.ApprovalDate = DateTime.Now;
Req.Institution.Seats = Req.Seats; // new
Req.Institution.AnalystId = ;*//Here i want to set the value to the AnalystId from dropdown list*
}
<--------- Lines of Code --------->
}
IndexView
<--------- Lines of Code --------->
<table>
@foreach (var item in Model.Requests)
{
@if (item.Type == "Register" && item.Institution.Status == "Pending")
{
<tr>
<td>
@Html.DisplayFor(m => item.Institution.Name)
</td>
<td>
@Html.DisplayFor(m => item.Date)
</td>
<td>
<select asp-for="selectedAnalyst" asp-items="Model.AnalystList.ToSelectListItem(Model.selectedAnalyst)" class="form-control">
<option selected value="">--- Choose ---</option>
</select>
</td>
<td>
<a class="btn btn-info" asp-controller="Request" asp-action="ApproveRequest" asp-route-id="@item.Id"> accept </a>
<a class="btn btn-info" asp-controller="Request" asp-action="RejectRequest" asp-route-id="@item.Id"> Reject </a>
</td>
<td>
<button type="submit" class="btn btn-success anchorDetail" data-target="#modal-@item.Institution.Id" data-toggle="modal">
View details
</button>
</td>
<--------- Lines of Code --------->
</tr>
}
}
</table>
<--------- Lines of Code --------->
@section scripts
{
<script>
var PostBackURL = '/Request/RequestDetails';
$(function () {
$(".anchorDetail").click(function () {
<--------- Lines of Code --------->
})
</script>
}
我可以像在“ RequestDetails”脚本中一样传递它,但可以传递不同的动作吗?
解决方法
将您的按钮更新为类似的内容
p1 + geom_hline(yintercept = 1,color = "black")
并将控制器的定义更新为此:
<input type="button" class="btn btn-success anchorDetail" data-target="#modal-@item.Institution.Id" data-toggle="modal" onclick="location.href='@Url.Action("ApproveRequest","Request",new { id = yourvalue })'" />
,
您仅提供url和click事件,但没有提供具体的实现方法。因此我无法理解您的具体含义。 如果只想将当前行的ID和当前下拉列表的值传递给RequestController,则可以参考以下实现,修改其ID:
<td>
<select id="selectedAnalyst_@item.Id" asp-for="selectedAnalyst" asp-items=" Model.AnalystList.ToSelectListItem(Model.selectedAnalyst)" class="form-control">
<option selected value="">--- Choose ---</option>
</select>
</td>
在接受按钮上添加点击功能:
<td>
<a class="btn btn-info" onclick="accept(@item.Id)" > accept </a>
</td>
脚本:
@section Scripts
{
<script>
function accept(id) {
var aid = $('#selectedAnalyst_' + id).val()
location.href = "/Request/ApproveRequest?id=" + id + "&Analystid=" + aid
}
</script>
}
这是批准请求:
public IActionResult ApproveRequest(int id,int Analystid)
{
return Json($"{id} {Analystid}");
}
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