我正在使用 ajax 创建一个搜索页面
。
场景是:在我们的购买系统中,用户从dropdownlist
中选择类别,然后单击浏览按钮
以显示包含产品列表的模式表单
基于所选类别。
问题是在显示模式后,然后用户填写搜索条件并单击“搜索”后,categoryID 为空
。当我们使用ajax搜索数据时如何保留这个值?
下面的代码代表了我到目前为止所做的事情:
购买 View :
@using (Html.BeginForm("Create", "Invoice", FormMethod.Post, new { @enctype = "multipart/form-data" }))
{
@Html.LabelFor(model => model.CategoryID, new { @class = "control-label col-md-2" })
@Html.DropDownListFor(model => model.CategoryID, new SelectList(Model.Categories, "CategoryID", "Name"), "-- Please Select --", new { @class = "form-control" })
@Html.ValidationMessageFor(model => model.CategoryID)
@Html.LabelFor(model => model.ProductID, new { @class = "control-label col-md-2" })
@Html.HiddenFor(model => model.ProductID)
@Html.EditorFor(model => model.Product.Name, new { htmlAttributes = new { @class = "form-control", @readonly = "readonly" } })
<button class="btn btn-primary" id="btnLookupProduct" data-id="@Model.CategoryID" data-toggle="modal" data-target="#myModal">Lookup Product</button>
}
<div class="modal fade" id="myModal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal"><span aria-hidden="true">×</span><span class="sr-only">Close</span></button>
<h4 class="modal-title" id="myModalLabel">Product List</h4>
@using (Ajax.BeginForm("Search", "Product",
new AjaxOptions
{
HttpMethod = "POST",
InsertionMode = InsertionMode.Replace,
UpdateTargetId = "lookup-timekeeper-container"
}))
{
@Html.DropDownList("FilterField",
new List<SelectListItem>
{
new SelectListItem { Text = "Code", Value = "Code" },
new SelectListItem { Text = "Name", Value = "Name" }
},
"-- Please Select --",
new { @class = "form-control" })
@Html.TextBox("FilterValue", null, new { @class = "form-control", @placeholder = "Enter keyword" })
<input type="submit" value="Search" class="btn btn-primary" />
}
</div>
<div class="modal-body" id="lookup-timekeeper-container">
// list of product
</div>
</div>
</div>
</div>
@section Scripts {
<script type="text/javascript">
$(document).ready(function () {
$("#btnLookupProduct").click(function () {
var url = '@Url.Content("~/Product/Search/")' + $("#CategoryID").val();
$.get(url)
.done(function (data) {
if (!data.message) {
$("#lookup-timekeeper-container").html(data);
$("#myModal").modal(show = true, backdrop = true);
} else {
alert(data.message);
}
});
});
});
</script>
}
采购 Controller :
public ActionResult Search(int? id, string filterField, string filterValue)
{
var products = db.Products.Where(p => p.CategoryID == id);
if (!string.IsNullOrEmpty(filterValue))
{
products = products.Where(filterField + ".Contains(@0)", filterValue);
}
return PartialView("_Lookup", products.ToList());
}
产品部分页面:
@model List<PurchaseSystem.Models.Product>
<div class="table-responsive">
<table class="table table-striped table-hover table-condensed">
<tr>
<th>Code</th>
<th>Name</th>
</tr>
@foreach (var item in Model)
{
<tr>
<td>@Html.DisplayFor(modelItem => item.Code)</td>
<td>@Html.DisplayFor(modelItem => item.Name)</td>
</tr>
}
</table>
</div>
最佳答案
从 Drop Down 中获取值到 HiddenField
<input type="hidden" value="" name="hiddens" id="hiddens" />
$("#btnLookupProduct").click(function () {
var DropValues = $("#DROPDOWNID").val();
document.getElementById("hiddens").value = DropValues;
});
现在单击搜索将此隐藏字段值放入变量中以使用它
关于javascript - 使用ajax mvc搜索数据时如何在查询字符串上保留id,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/25396355/