我有三个dropdownlist - Project,Sprint,Story。 Sprint下拉列表将根据选定的项目绑定,故事下拉列表将根据选定的Sprint绑定。在选定的故事的基础上,我想展示一个webgrid。多个局部视图渲染
我在做什么是: 我的项目dropdownlist是在主视图页面上,Sprint dropdownlist和Story dropdownlist是两个不同的局部视图。当我从项目中选择,选定的值在jquery中,并传递给控制器:
$('#Project').change(function (e) {
e.preventDefault();
var selectedVal = $("#Project").val();
$.ajax({
url: "/Task/BindSprintList",
data: { projectTitle: selectedVal },
type: 'Get',
success: function (result) {
$('#ViewGrid').html(result);
},
error: function() {
alert("something seems wrong");
}
});
});
现在冲刺下拉列表出现。当我来自Sprint选择,选择的值被取入jQuery和传递给作为控制器:
$('#Sprint').change(function (e) {
e.preventDefault();
var selectedProjectVal = $("#Project").val();
var selectedSprintVal = $("#Sprint").val();
$.ajax({
url: "/Task/BindStoryList",
data: { projectTitle: selectedProjectVal, sprintTitle: selectedSprintVal },
type: 'Get',
success: function (result) {
$('#ddlStory').html(result); },
error: function (err) {
alert("something seems wrong "+ err);
}
});
});
但现在故事DROPDOWNLIST没有显示。
MainPage.cshtml
<table>
@{
if (ViewBag.ProjectList != null)
{
<tr>
<td>
<h4>SELECT PROJECT </h4>
</td>
<td>
@Html.DropDownList("Project", new SelectList(ViewBag.ProjectList, "Value", "Text"), " -- Select -- ")
</td>
</tr>
}
if (ViewBag.SprintList != null)
{
Html.RenderPartial("PartialSprintDropDown", Model.AsEnumerable());
}
if (ViewBag.StoryList != null)
{
Html.RenderPartial("PartialStoryDropDown", Model.AsEnumerable());
}
}
</table>
PartialSprintDropDown.cshtml
<table>
<tr>
<td>
<h4>SELECT SPRINT</h4>
</td>
<td>
@Html.DropDownList("Sprint", new SelectList(ViewBag.SprintList, "Value", "Text"), " -- Select -- ")
</td>
</tr>
</table>
<script src="~/Script/Task/IndexTask.js" type="text/javascript"></script>
PartialStoryDropDown.cshtml
<div id="ddlStory">
<table>
<tr>
<td>
<h4>SELECT STORY</h4>
</td>
<td>
@Html.DropDownList("Story", new SelectList(ViewBag.StoryList, "Value", "Text"), " -- Select -- ")
</td>
</tr>
</table>
</div>
<script src="~/Script/Task/IndexTask.js" type="text/javascript"></script>
任何人都可以建议我为什么Story DropdownList不显示。即使当我贬低PartialStoryDropDown.cshtml,“ViewBag.StoryList”包含数据按预期方式,但不显示在页面上。
我在Viewbag.SprintList和Viewbag.StoryList中包含我的数据。 正在显示SprintDropdownlist。
如何解决这个问题?
BindSprintList()
public ActionResult BindSprintList(string projectTitle)
{
try
{
string Owner = Session["UserName"].ToString();
int? ProjectId = GetProjectID(projectTitle);
var ddlSprint = new List<string>();
List<SelectListItem> items = new List<SelectListItem>();
var querySprint = (from sp in entities.Sprints
where sp.Project_ID == ProjectId && sp.Sprint_Status != "Completed"
select sp).ToList();
foreach (var item in querySprint.ToList())
{
SelectListItem li = new SelectListItem
{
Value = item.Sprint_Title,
Text = item.Sprint_Title
};
items.Add(li);
}
IEnumerable<SelectListItem> List = items;
ViewBag.SprintList = new SelectList(List, "Value", "Text");
}
catch (Exception e)
{
var sw = new System.IO.StreamWriter(filename, true);
sw.WriteLine("Date :: " + DateTime.Now.ToString());
sw.WriteLine("Location :: AgileMVC >> Controllers >> TaskController.cs >> public ActionResult BindSprintList(string projectTitle)");
sw.WriteLine("Message :: " + e.Message);
sw.WriteLine(Environment.NewLine);
sw.Close();
}
return PartialView("PartialSprintDropDown", ViewBag.SprintList);
}
BindStoryList()
public ActionResult BindStoryList(string projectTitle, string sprintTitle)
{
try
{
string Owner = Session["UserName"].ToString();
int? ProjectId = GetProjectID(projectTitle);
int? SprintId = GetSprintID(ProjectId, sprintTitle);
var ddlStory = new List<string>();
List<SelectListItem> items = new List<SelectListItem>();
var queryStory = (from st in entities.Stories
join spss in entities.SprintStories on st.Story_ID equals spss.Story_ID
where spss.Sprint_ID == SprintId && spss.Project_ID == ProjectId
select st).ToList();
foreach (var item in queryStory.ToList())
{
SelectListItem li = new SelectListItem
{
Value = item.Story_Title,
Text = item.Story_Title
};
items.Add(li);
}
IEnumerable<SelectListItem> List = items;
ViewBag.StoryList = new SelectList(List, "Value", "Text");
}
catch (Exception e)
{
var sw = new System.IO.StreamWriter(filename, true);
sw.WriteLine("Date :: " + DateTime.Now.ToString());
sw.WriteLine("Location :: AgileMVC >> Controllers >> TaskController.cs >> public ActionResult BindStoryList()");
sw.WriteLine("Message :: " + e.Message);
sw.WriteLine(Environment.NewLine);
sw.Close();
}
return PartialView("PartialStoryDropDown", ViewBag.StoryList);
}
介意分享您的BindStoryList和BindSprintList操作? – 2014-09-26 04:27:36
它看起来像你试图在下拉菜单中显示一个'table'(用'$('#ddlStory')'和你的部分视图的html。 – Mrchief 2014-09-26 04:27:54
其实@Mrchief ...我认为ishud把PartialStoryDropDown内容放在div tag wid ID“ddlStory”,这就是为什么im显示那一个... – Mayank 2014-09-26 04:32:53