我有以下 asp.net mvc SharePoint 应用程序控制器
public ActionResult Index(string city)
{
var spContext = SharePointContextProvider.Current.GetSharePointContext(HttpContext);
List<Programate> lsProgramate = new List<Programate>();
ViewBag.Img = spContext.SPHostUrl + "Style Library/Intranet/images/programte-13.png";
ViewBag.CssRenting = spContext.SPHostUrl + "Style Library/Intranet/css/renting.css";
using (var clientContext = spContext.CreateUserClientContextForSPHost())
{
if (clientContext != null)
{
List lstProducts = clientContext.Web.Lists.GetByTitle("Programate");
CamlQuery camlQuery = new CamlQuery();
camlQuery.ViewXml = "<View><Query><OrderBy><FieldRef Name='Title'/></OrderBy></Query></View>";
//add filter by city
ListItemCollection lstEventos = lstProducts.GetItems(camlQuery);
clientContext.Load(lstEventos);
clientContext.ExecuteQuery();
ViewBag.Resp = "";
if (lstEventos != null)
{
foreach (var lstEventoItem in lstEventos)
{
Programate objProgramate = new Programate();
objProgramate.Titulo = lstEventoItem["Title"].ToString();
objProgramate.Hora_Inicio = Convert.ToString(lstEventoItem["EventDate"]);
objProgramate.Hora_Fin = Convert.ToString(lstEventoItem["EndDate"]);
objProgramate.Descripcion = lstEventoItem["Description"].ToString();
FieldLookupValue obj = new FieldLookupValue();
obj = (FieldLookupValue)lstEventoItem["Ubicacion"];
objProgramate.Ciudad = obj.LookupValue;
objProgramate.Ubicacion = lstEventoItem["Location"].ToString();
lsProgramate.Add(objProgramate);
}
List<string> lsStr = lsProgramate.Select(x => x.Ciudad).Distinct().ToList();
ViewBag.Ciudades = lsStr;
}
}
}
return View(lsProgramate);
}
在我看来是这样的：
@using xx.Models;
@model List<Programate>
@{
Layout = null;
}
<!DOCTYPE html>
<html>
<head>
<title></title>
<script type="text/javascript" src="~/Scripts/jquery-1.10.2.js"></script>
<script type="text/javascript" src="~/Scripts/bootstrap.js"></script>
<link href="~/Content/bootstrap.css" rel="stylesheet" type="text/css" />
<link href="@ViewBag.CssRenting" rel="stylesheet" type="text/css" />
<style type="text/css">
.programate-color {
width: 95%;
margin-left: 2.5%;
}
.selec-programate {
width: 95%;
margin-left: 2.5%;
}
</style>
<script type="text/javascript">
// Set the style of the app part page to be consistent with the host web.
// Get the URL of the host web and load the styling of it.
function setStyleSheet() {
var hostUrl = ""
if (document.URL.indexOf("?") != -1) {
var params = document.URL.split("?")[1].split("&");
for (var i = 0; i < params.length; i++) {
p = decodeURIComponent(params[i]);
if (/^SPHostUrl=/i.test(p)) {
hostUrl = p.split("=")[1];
document.write("<link rel="stylesheet" href="" + hostUrl +
"/_layouts/15/defaultcss.ashx" />");
break;
}
}
}
// if no host web URL was available, load the default styling
if (hostUrl == "") {
document.write("<link rel="stylesheet" " +
"href="/_layouts/15/1033/styles/themable/corev15.css" />");
}
}
setStyleSheet();
</script>
</head>
<body style="background-color: transparent; overflow: auto;">
<div id="dynamicContent">
@Html.DropDownList("Ciudades", new SelectList(ViewBag.Ciudades), new { @class = "form-control selec-programate", @onchange = "CallChangeCiudad(this.value)" });
<div class="programate-color">
@{int i = 0;
foreach (var item in Model)
{
i = i + 1;
string collapse = "Evento" + i;
<a data-toggle="collapse" data-target="#@collapse">
<div class="programte" style="height: 104px; width: 100%;">
<img class="img-programte" src="@ViewBag.Img">
<p class="fecha-programte">@i</p>
<p class="contenido-programte">@item.Titulo</p>
<p class="lugar">@item.Ubicacion - @item.Ciudad</p>
</div>
</a>
<div id="@collapse" class="collapse">
<div class="row" style="margin-left: 15%;">
<div class="col-sm-12">
<p style="color:red; font-size: 18px;">Inicio: @item.Hora_Inicio - Fin: @item.Hora_Fin</p>
</div>
<div class="col-sm-12">
<p style="font-size:16px; color:#040489;">@item.Descripcion</p>
</div>
</div>
</div>
}
}
</div>
</div>
<script>
function CallChangeCiudad(val) {
//window.location.href = "/Programate/Index?ciudad=" + val;
}
</script>
<script type="text/javascript">
"use strict";
window.Communica = window.Communica || {};
$(document).ready(function () {
Communica.Part.init();
});
Communica.Part = {
senderId: '',
init: function () {
var params = document.URL.split("?")[1].split("&");
for (var i = 0; i < params.length; i = i + 1) {
var param = params[i].split("=");
if (param[0].toLowerCase() == "senderid")
this.senderId = decodeURIComponent(param[1]);
}
this.adjustSize();
},
adjustSize: function () {
var step = 30,
newHeight,
contentHeight = $('#dynamicContent').height(),
resizeMessage = '<message senderId={Sender_ID}>resize({Width}, {Height})</message>';
newHeight = (step - (contentHeight % step)) + contentHeight;
resizeMessage = resizeMessage.replace("{Sender_ID}", this.senderId);
resizeMessage = resizeMessage.replace("{Height}", newHeight);
resizeMessage = resizeMessage.replace("{Width}", "100%");
window.parent.postMessage(resizeMessage, "*");
}
};
</script>
</body>
</html>
如您所见，我有一个呈现城市列表的下拉列表，我希望当用户选择一个列表时，它应该使用城市的查询字符串回调控制器索引操作，但这不是问题，问题是 sharepoint 应用程序需要一些查询字符串令牌，以便 sharepoint 可以在操作上创建 clientContext 对象。
如果是服务器端代码，那么它将是这样的：
@Html.ActionLink("Install Design Package", "InstallDesignPackage", "Home", new { SPHostUrl = SharePointContext.GetSPHostUrl(HttpContext.Current.Request).AbsoluteUri },null)
但是因为这是javascript，我不知道如何在下拉列表更改时附加所有这些标准共享点令牌。
在我们的例子中，这是我们必须手动完成的事情，这是一个示例（请注意，我们依赖于jquery）然后，您所要做的就是将 Utilities.GetSharePointSecurityParams 的结果附加到 ajax 调用的 url 中。
Utilities.GetSharePointSecurityParams = function ()
{
var re = /+/g;
var spAppWebUrl = Utilities.getQueryStringParameterCleaned("SPAppWebUrl");
var params = {
SPHostUrl: Utilities.getQueryStringParameterCleaned("SPHostUrl"),
SPLanguage: Utilities.getQueryStringParameterCleaned("SPLanguage"),
SPClientTag: Utilities.getQueryStringParameterCleaned("SPClientTag"),
SPProductNumber: Utilities.getQueryStringParameterCleaned("SPProductNumber"),
SPHostTitle: Utilities.getQueryStringParameterCleaned("SPHostTitle"),
};
if (spAppWebUrl !== "")
params["SPAppWebUrl"] = spAppWebUrl;
return $.param(params).replace(re, " ");
}
Utilities.getQueryStringParameter = function (paramToRetrieve) {
var params = document.URL.split("?")[1].split("&");
for (var i = 0; i < params.length; i = i + 1) {
var singleParam = params[i].split("=");
if (singleParam[0] === paramToRetrieve)
return singleParam[1];
}
return null;
}
Utilities.getQueryStringParameterCleaned = function (paramToRetrieve) {
var re = /#$/;
var tempResult = Utilities.getQueryStringParameter(paramToRetrieve);
if (tempResult != null)
return decodeURIComponent(tempResult).replace(re, "")
else
return "";
}<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>