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[英]Maintaining Index Value with Partial Views in ASP.NET MVC2 using SPARK
[英]Strange behaviour in ASP.NET MVC2 views and partial form
我正在ASP.NET MVC 2中实现MS NerdDinner应用,并且我使用的是Google地图而不是MS地图。 我使用Google网站的示例代码来绘制地图。 我在同一目录中有2个非常简单的视图,Create.aspx和Edit.aspx,分别创建和编辑晚餐。 它们非常简单-它们都呈现了一个名为Dinner.ascx的局部视图,该视图也位于同一目录中。
Dinner表单包含3个js文件,并且还呈现了另一个显示Google Map的局部表单。 我有2个问题:
从“编辑”视图呈现的晚餐形式找不到Javascript文件,并且完全掉落,而从“创建”视图调用的晚餐形式则是在查看Javascript文件,并且正在工作。 创建的网址是http:// localhost / NerdDinner / Dinners /创建和编辑的网址是http:// localhost / NerdDinner / Dinners / Edit / 39 。 为什么即使在两个视图都呈现相同的局部视图的情况下,仍无法从“编辑”视图中找到JS文件?
在Firefox(3.6.8版)中,“创建”页面有时只能工作,这非常不一致。 通常,在刷新几次或离开并返回页面后,它最终将起作用,而在IE 8中,它将一直起作用。 为什么FF这样不一致?
解决方案目录结构为:
NerdDinner(根)
控制器
-HomeController.cs
-DinnersController.cs
-等
楷模
剧本
-CurrentJS.js
-MainJS.js
-jQuery-1.4.1.js
-等
观看次数
-帐户
-晚餐
--Create.aspx
--Edit.aspx
--DinnerForm.ascx
--GoogleMap2.ascx
--等
-主页
-共享
我已经将头撞在墙上两天了,再也看不见树木的木头了。 下面的代码(如果过于冗长,则表示歉意):
创建.aspx
<%@ Page Title="" Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage<NerdDinner.Controllers.DinnerFormViewModel>" %>
<asp:Content ID="Title" ContentPlaceHolderID="TitleContent" runat="server">
Host a Dinner
</asp:Content>
<asp:Content ID="Create" ContentPlaceHolderID="MainContent" runat="server">
<h2>Host a Dinner</h2>
<% Html.RenderPartial("DinnerForm"); %>
</asp:Content>
Edit.aspx:
<%@ Page Title="" Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage<NerdDinner.Controllers.DinnerFormViewModel>" %>
<asp:Content ID="Title" ContentPlaceHolderID="TitleContent" runat="server">
Edit:
<%=Html.Encode(Model.Dinner.Title) %>
</asp:Content>
<asp:Content ID="Edit" ContentPlaceHolderID="MainContent" runat="server">
<h2>
Edit Dinner</h2>
<% Html.RenderPartial("DinnerForm"); %>
</asp:Content>
DinnerForm.ascx:
<%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl<NerdDinner.Controllers.DinnerFormViewModel>" %>
<script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false"></script>
<script type="text/javascript" src="../Scripts/MainJS.js"></script>
<script type="text/javascript" src="../Scripts/CurrentJS.js"></script>
<script type="text/javascript">
$(document).ready(function() {
$("#Address").blur(function(evt) {
$("#Latitude").val("");
$("#Longitude").val("");
var address = jQuery.trim($("#Address").val());
alert('address: ' + address);
if (address.length < 1)
return;
codeAddress();
});
});
</script>
<%= Html.ValidationSummary("Please correct your errors and try again.") %>
<% using (Html.BeginForm()) { %>
<fieldset>
<p>
<label for="Title">
Dinner Title:</label>
<%= Html.TextBox("Title", Model.Dinner.Title) %>
<%=Html.ValidationMessage("Title", "*") %>
</p>
<p>
<label for="EventDate">
Event Date:</label>
<%= Html.TextBox("EventDate", Model.Dinner.EventDate) %>
<%= Html.ValidationMessage("EventDate", "*") %>
</p>
<p>
<label for="Description">
Description:</label>
<%= Html.TextArea("Description", Model.Dinner.Description) %>
<%= Html.ValidationMessage("Description", "*") %>
</p>
<p>
<label for="Address">
Address:</label>
<%= Html.TextBox("Address", Model.Dinner.Address) %>
<%= Html.ValidationMessage("Address", "*") %>
</p>
<p>
<label for="Country">
Country:</label>
<%= Html.DropDownList("Country", Model.Countries) %>
<%= Html.ValidationMessage("Country", "*") %>
</p>
<p>
<label for="ContactPhone">
Contact Phone #:</label>
<%= Html.TextBox("ContactPhone", Model.Dinner.ContactPhone) %>
<%= Html.ValidationMessage("ContactPhone", "*") %>
</p>
<p>
<%= Html.Hidden("Latitude", Model.Dinner.Latitude) %>
</p>
<p>
<%= Html.Hidden("Longitude", Model.Dinner.Longitude) %>
</p>
<p>
<input type="submit" value="Save" />
</p>
</fieldset>
<div id="mapDiv">
<%Html.RenderPartial("GoogleMap2", Model.Dinner); %>
</div>
<% } %>
GoogleMap2.ascx:
<%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl" %>
<style type="text/css">
html { height: 100% }
body { height: 100%; margin: 0px; padding: 0px }
#map_canvas { height: 50% }
#infoPanel {
float: left;
margin-left: 10px;
}
#infoPanel div {
margin-bottom: 5px;
}
</style>
<!-- End add for google map -->
<div id="map_canvas" style="width: 765px; height: 400px;">
</div>
<div id="infoPanel">
<b>Marker status:</b>
<div id="markerStatus">
<i>Click and drag the marker.</i></div>
<b>Current position:</b>
<div id="info"></div>
<b>Closest matching address:</b>
<div id="address"></div>
</div>
<script type="text/javascript">
$(document).ready(function() {
initialize4();
});
</script>
CurrentJS.js:
//// +++++++++++ Start of attempt to pinpoint location automatically
function initialize4() {
var myOptions = {
zoom: 9,
mapTypeId: google.maps.MapTypeId.ROADMAP
};
map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);
// Try W3C Geolocation (Preferred)
if (navigator.geolocation) {
browserSupportFlag = true;
navigator.geolocation.getCurrentPosition(function(position) {
initialLocation = new google.maps.LatLng(position.coords.latitude, position.coords.longitude);
map.setCenter(initialLocation);
}, function() {
handleNoGeolocation(browserSupportFlag);
});
// Browser doesn't support Geolocation
} else {
browserSupportFlag = false;
handleNoGeolocation(browserSupportFlag);
}
if (initialLocation == 'undefined')
alert('1' + initialLocation);
else
alert('2' + initialLocation);
//Add draggable marker
var marker = new google.maps.Marker({
position: initialLocation, //latLng,
title: 'Point B',
map: map,
draggable: true
});
// Update current position info.
updateMarkerPosition(initialLocation);
geocodePosition(initialLocation);
// Add dragging event listeners.
google.maps.event.addListener(marker, 'dragstart', function() {
updateMarkerAddress('Dragging...');
});
google.maps.event.addListener(marker, 'drag', function() {
updateMarkerStatus('Dragging...');
updateMarkerPosition(marker.getPosition());
});
google.maps.event.addListener(marker, 'dragend', function() {
updateMarkerStatus('Drag ended');
geocodePosition(marker.getPosition());
});
function handleNoGeolocation(errorFlag) {
if (errorFlag == true) {
alert("Geolocation service failed.");
initialLocation = newyork;
} else {
alert("Your browser doesn't support geolocation. We've placed you in newyork.");
initialLocation = newyork;
}
map.setCenter(initialLocation);
}
}
function geocodePosition(pos) {
geocoder.geocode({
latLng: pos
}, function(responses) {
if (responses && responses.length > 0) {
updateMarkerAddress(responses[0].formatted_address);
} else {
updateMarkerAddress('Cannot determine address at this location.');
}
});
}
function updateMarkerStatus(str) {
document.getElementById('markerStatus').innerHTML = str;
}
function updateMarkerPosition(latLng) {
//alert('latLng:' + latLng);
document.getElementById('info').innerHTML = [
latLng.lat(),
latLng.lng()
].join(', ');
}
function updateMarkerAddress(str) {
document.getElementById('address').innerHTML = str;
}
function codeAddress() {
var address = document.getElementById("address").value;
alert('In codeAddress');
geocoder.geocode({ 'address': address }, function(results, status) {
if (status == google.maps.GeocoderStatus.OK) {
map.setCenter(results[0].geometry.location);
var marker = new google.maps.Marker({
map: map,
position: results[0].geometry.location
});
} else {
alert("Geocode was not successful for the following reason: " + status);
}
});
}
//// +++++++++++++ End attempt to pinpoint location automatically
问题1:听起来好像对在哪里找到javascript文件感到困惑。
而不是
<script type="text/javascript" src="../Scripts/MainJS.js"></script>
<script type="text/javascript" src="../Scripts/CurrentJS.js"></script>
将这些更改为
<script type="text/javascript" src="/Scripts/MainJS.js"></script>
<script type="text/javascript" src="/Scripts/CurrentJS.js"></script>
这些线上的相对路径可以不同,具体取决于当前正在渲染哪个视图或局部视图。
问题2:在Firefox(3.6.8版)中,“创建”页面有时只能工作-您能否进一步解释-当它不工作时显示什么?
我通过从相对路径更改为使用以下语法来解决了js问题:
<script src='<%=ResolveClientUrl("~/Scripts/MainJS.js") %>' type="text/javascript"></script>
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