我有一个名为start的日期变量，它在查询字符串中传递。使用linq我需要在另一个页面上测试另一个名为StartDate的日期变量是否等于在url中传递的日期变量。
我正在尝试做类似的事情：
test = client.GetEventInstances().Where(e => e.StartDate == start);
然后，我可以使用StartDate的事件进行过滤，该start等于在网址中发送的@model ReportGenerator.WebUI.Models.FieldViewModel
@{
var list = @Model.IEnumerableField.GroupBy(item => item.TemplateName).ToList();
}
@using (Html.BeginForm("addTemplate", "TemplateField", FormMethod.Post))
{
<div class="form-group">
<div class="input-group">
<label class="label label-default">Nazwa szablonu*</label>
@Html.TextBoxFor(m => m.field.TemplateName, new { @class = "form-control" })
<br /><br />
</div>
</div>
<table id="sort" class="table">
<thead>
<tr>
<th>Nazwa kolumny z BD*</th>
<th>Długość rekordu*</th>
<th>Nazwa kolumny wyświetlana</th>
<th>Format*</th>
</tr>
</thead>
<tbody id="tblsort">
@for (var i = 0; i < Model.listOfFormats(Model.field.TemplateName).ColumnNamesDB.Count; i++)
{
<tr>
<td>@Html.TextBoxFor(m => Model.listOfFormats(Model.field.TemplateName).ColumnNamesDB[i], new { @class = "form-control" })</td>
<td>@Html.TextBoxFor(m => Model.listOfFormats(Model.field.TemplateName).LengthColumns[i], new { @class = "form-control" })</td>
<td>@Html.TextBoxFor(m => Model.listOfFormats(Model.field.TemplateName).ColumnNamesUser[i], new { @class = "form-control" })</td>
<td>@Html.DropDownListFor(m => Model.listOfFormats(Model.field.TemplateName).Formats[i], new SelectList(Model.formatFieldValues, "Value", "Text"), Model.listOfFormats(Model.field.TemplateName).Formats[i], new { @class = "form-control" })</td>
</tr>
}
</tbody>
</table>
<div id="hiddenHtml" style="display:none;">
@Html.DropDownList("FormatFieldName", new SelectList(Model.formatFieldValues, "Value", "Text"), "Domyślny", new { @class = "form-control" })
</div>
<button class="btn btn-success" type="button" id="addRow" style="float: right;"><span class="glyphicon glyphicon-plus" id="addRow"></span></button>
<button class="btn btn-success" id="save" style="float: left;">Zapisz</button>
<br /><br /><br />
<div>
<p style="float: right;">* - Pole oznaczone gwiązdką są obowiązkowe!</p>
</div>
<br /> <br />
@Html.ValidationSummary()
<h1 style="color:@ViewBag.color">@ViewBag.Info</h1>
}
var
答案 0 :(得分：0)
您需要将字符串日期转换为DateTime： -
DateTime startDate = DateTime.Parse(start);
test = client.GetEventInstances().Where(e => e.StartDate.Date == startDate.Date);
显然，您必须检查日期是否已被解析。
答案 1 :(得分：0)
您应该使用DateTime.TryParse()
DateTime startDateTime;
if (DateTime.TryParse(start, out startDateTime))
client.GetEventInstances().Where(e => e.StartDate.Date == startDateTime.Date);
else
/* query can't be parsed, do whatever you need to do */