Sharepoint 2013 本地 C# CSOM 跨站点集合列表访问
Sharepoint 2013 On-Premises C# CSOM Cross Site Collection List Access
我看到这个问题之前已经被问过很多次了，但是我在 运行 中遇到的所有示例都不起作用或者在 JavaScript 中，我需要 C# 方面的帮助。
我有一个带有服务器网站集的场，我成功地创建了一个提供程序托管 addin/App，当它尝试访问启动它的 Web 上的列表时，一切正常！我需要尝试访问同一农场和同一域中其他网站上的列表，有没有人有可以执行此操作的 C# 代码示例
您可以像这样创建存储库方法：
public class SharepointRepository
{
public ListItemCollection ListTopN(string urlSite, string listName, bool ascending, string column, int rowLimit)
{
using (var context = new ClientContext(urlSite))
{
context.Credentials = CredentialCache.DefaultCredentials;
List list = context.Web.Lists.GetByTitle(listName);
string myQuery = string.Format("<View><Query><OrderBy><FieldRef Name='{0}' Ascending='{1}' /></OrderBy></Query><RowLimit>{2}</RowLimit></View>", column, ascending.ToString(), rowLimit);
CamlQuery query = new CamlQuery();
query.ViewXml = myQuery;
ListItemCollection collection = list.GetItems(query);
context.Load(list);
context.Load(collection);
context.ExecuteQuery();
return collection;
}
}
}
此方法使用托管 csom。
如果您遇到 ADFS 问题，请尝试在此行之后添加
context.Credentials = CredentialCache.DefaultCredentials;
这个
context.ExecutingWebRequest += new EventHandler<WebRequestEventArgs>(MixedAuthRequestMethod);
和这个函数
void MixedAuthRequestMethod（对象发送者，WebRequestEventArgs e）
{
e.WebRequestExecutor.RequestHeaders.Add("X-FORMS_BASED_AUTH_ACCEPTED", "f");
}
这是基本参考：
https://msdn.microsoft.com/en-us/library/office/fp179912.aspx
您还应该查看 Sharepoint App 模型和 Rest OData API。
我明白了，所以我发布它以防万一其他人需要它，也请理解我对 SharePoint 完全是菜鸟，这可能不是最好的方式，甚至不是 SharePoint 接受的做事方式.
首先，您需要授予应用租户权限（完全控制或管理）！ - 非常重要
其次，我创建了这个函数，它在
上创建了一个网站的 SharePoint 上下文，而不是应用程序所在的网站 运行
public ClientContext CreateRemoteSharePointContext(string TargetWebURL, SharePointContext CurrentSharePointContext)
{
//In order for us to create a share point client context that points to
//site other then the site that this app is running we need to copy some url parameters from the current
//context. These parameters are found on the current share-point context
NameValueCollection QueryString = Request.QueryString;
//Since, The Query string is a read only collection, a use of reflection is required to update the
//values on the request object, we must use the current request object because it contains
//security and other headers/cookies that we need for the context to be created, Grab the url params that we need
//other then TargetWebUrl, that will be the url of the site we want to manipulate
Utility.AddToReadonlyQueryString(QueryString, "SPHostUrl", CurrentSharePointContext.SPHostUrl.ToString(), System.Web.HttpContext.Current.Request);
Utility.AddToReadonlyQueryString(QueryString, "SPAppWebUrl", TargetWebURL, System.Web.HttpContext.Current.Request);
Utility.AddToReadonlyQueryString(QueryString, "SPLanguage", CurrentSharePointContext.SPLanguage, System.Web.HttpContext.Current.Request);
Utility.AddToReadonlyQueryString(QueryString, "SPClientTag", CurrentSharePointContext.SPClientTag, System.Web.HttpContext.Current.Request);
Utility.AddToReadonlyQueryString(QueryString, "SPProductNumber", CurrentSharePointContext.SPProductNumber, System.Web.HttpContext.Current.Request);
//This is a special line, we need to get the AppOnly access token and pass it along to the target site, its is a little counter intuitive
//Because we are using TokenHelper.GetS2SAccessToeknWithWindowsIdentity - but we pass NULL as the User identity, this will
//check the app manifest and if the app has a CERT and AppOnly Permission it will return a valid app only token to use
Utility.AddToReadonlyQueryString(QueryString, "AppContextToken", TokenHelper.GetS2SAccessTokenWithWindowsIdentity(new Uri(TargetWebURL), null), System.Web.HttpContext.Current.Request);
//Return the newly created context
return SharePointContextProvider.Current.CreateSharePointContext(HttpContext.Request, TargetWebURL).CreateAppOnlyClientContextForSPAppWeb();
}
如您所见，我不得不破解 Querystring 并获取一些值，所以这是执行此操作的实用程序 class：
public class Utility
{
public static void UpdateReadonlyQueryString(NameValueCollection collectionToUpdate, string paramName, string paramValue, HttpRequest Request)
{
collectionToUpdate = (NameValueCollection)Request.GetType().GetField("_queryString", BindingFlags.NonPublic | BindingFlags.Instance).GetValue(Request);
PropertyInfo readOnlyInfo = collectionToUpdate.GetType().GetProperty("IsReadOnly", BindingFlags.NonPublic | BindingFlags.Instance);
readOnlyInfo.SetValue(collectionToUpdate, false, null);
collectionToUpdate[paramName] = paramValue;
readOnlyInfo.SetValue(collectionToUpdate, true, null);
}
public static void AddToReadonlyQueryString(NameValueCollection collectionToUpdate, string paramName, string paramValue, HttpRequest Request)
{
collectionToUpdate = Request.QueryString;
collectionToUpdate = (NameValueCollection)Request.GetType().GetField("_queryString", BindingFlags.NonPublic | BindingFlags.Instance).GetValue(Request);
PropertyInfo readOnlyInfo = collectionToUpdate.GetType().GetProperty("IsReadOnly", BindingFlags.NonPublic | BindingFlags.Instance);
readOnlyInfo.SetValue(collectionToUpdate, false, null);
collectionToUpdate.Add( paramName, paramValue);
readOnlyInfo.SetValue(collectionToUpdate, true, null);
}
}
最后，SharePoint 访问代码看起来与网络上的大部分相同 SharePoint 代码，我不得不从中删除一些可以识别项目或它的服务对象的内容，但它应该很容易从里面挑选你需要的东西
try
{
//Get the name of the sharepoint list that needs to be updated from settings
var ListName = ConfigurationManager.AppSettings[Constants.SettingsConstants.SPLaunchQueList];
var TargetSiteToUpdate = "URL TO THE SITE YOUR TRYING TO UPDATE";
//Get the sharepoint context from session
var spContext = <SOME HOW CREATE YOUR CONTEXT>
//Lets create a client context from the current sharepoint context to the target site
//NOTE this requires the application to HAVE Tenant level permission, it must be trusted by
//the farm admin
using (var spClientContext = CreateRemoteSharePointContext(TargetSiteToUpdate, spContext))
{
//Get the current Web (Sharepoint Web) from the client context
var web = spClientContext.Web;
//Load all the webs properties including title , url all the lists and get the subwebs if any as well
spClientContext.Load(web, x => x.Title, x => x.Url, x => x.Lists, x => x.Webs.Include(w => w.Title, w => w.Url));
spClientContext.ExecuteQuery();
//Lets grab the list that needs to be updated
SP.List OrgList = web.Lists.GetByTitle(ListName);
//Construct a caml query Where the groupID of the SQL Server record is the same
//as the list GroupID
var caml = new Caml<DetailParts>().Where(o => o.GroupID == updateRecord.GroupID);
CamlQuery camlQuery = new CamlQuery();
camlQuery.ViewXml = caml.ToString();
//Load the CAML query
ListItemCollection Rows = OrgList.GetItems(camlQuery);
spClientContext.Load(Rows);
spClientContext.ExecuteQuery();
//The CAML Query should only return one row because GroupID should be UNQIUE
//however due to how sharepoint returns list data we are forcing the first value
//here
ListItem RowToUpdate = Rows[0];
//Get a list of sharepoint columns that match the local detail parts
var ColumnsToUpdate = GetSharePointColumns(typeof(DetailParts));
RowToUpDate["SomeColumn"] = "YOUR NEW VALUE";
RowToUpdate.Update();
//Commit the changes
spClientContext.ExecuteQuery();
}
}
}
catch (Exception ex)
{
//Log any exception and then throw to the caller
logger.Error("Sharepoint exception", ex);
}
最后一段代码应该在某种函数或方法中，我只是提取了相关部分。正如我所说，这是我发现唯一可行的方法，如果有人有更好的方法，请分享它，因为我不是 SharePoint 专家。
我看到这个问题之前已经被问过很多次了，但是我在 运行 中遇到的所有示例都不起作用或者在 JavaScript 中，我需要 C# 方面的帮助。
我有一个带有服务器网站集的场，我成功地创建了一个提供程序托管 addin/App，当它尝试访问启动它的 Web 上的列表时，一切正常！我需要尝试访问同一农场和同一域中其他网站上的列表，有没有人有可以执行此操作的 C# 代码示例
您可以像这样创建存储库方法：
public class SharepointRepository
{
public ListItemCollection ListTopN(string urlSite, string listName, bool ascending, string column, int rowLimit)
{
using (var context = new ClientContext(urlSite))
{
context.Credentials = CredentialCache.DefaultCredentials;
List list = context.Web.Lists.GetByTitle(listName);
string myQuery = string.Format("<View><Query><OrderBy><FieldRef Name='{0}' Ascending='{1}' /></OrderBy></Query><RowLimit>{2}</RowLimit></View>", column, ascending.ToString(), rowLimit);
CamlQuery query = new CamlQuery();
query.ViewXml = myQuery;
ListItemCollection collection = list.GetItems(query);
context.Load(list);
context.Load(collection);
context.ExecuteQuery();
return collection;
}
}
}
此方法使用托管 csom。
如果您遇到 ADFS 问题，请尝试在此行之后添加
context.Credentials = CredentialCache.DefaultCredentials;
这个
context.ExecutingWebRequest += new EventHandler<WebRequestEventArgs>(MixedAuthRequestMethod);
和这个函数
void MixedAuthRequestMethod（对象发送者，WebRequestEventArgs e） { e.WebRequestExecutor.RequestHeaders.Add("X-FORMS_BASED_AUTH_ACCEPTED", "f"); }
这是基本参考： https://msdn.microsoft.com/en-us/library/office/fp179912.aspx
您还应该查看 Sharepoint App 模型和 Rest OData API。
我明白了，所以我发布它以防万一其他人需要它，也请理解我对 SharePoint 完全是菜鸟，这可能不是最好的方式，甚至不是 SharePoint 接受的做事方式.
首先，您需要授予应用租户权限（完全控制或管理）！ - 非常重要
其次，我创建了这个函数，它在
上创建了一个网站的 SharePoint 上下文，而不是应用程序所在的网站 运行 public ClientContext CreateRemoteSharePointContext(string TargetWebURL, SharePointContext CurrentSharePointContext)
{
//In order for us to create a share point client context that points to
//site other then the site that this app is running we need to copy some url parameters from the current
//context. These parameters are found on the current share-point context
NameValueCollection QueryString = Request.QueryString;
//Since, The Query string is a read only collection, a use of reflection is required to update the
//values on the request object, we must use the current request object because it contains
//security and other headers/cookies that we need for the context to be created, Grab the url params that we need
//other then TargetWebUrl, that will be the url of the site we want to manipulate
Utility.AddToReadonlyQueryString(QueryString, "SPHostUrl", CurrentSharePointContext.SPHostUrl.ToString(), System.Web.HttpContext.Current.Request);
Utility.AddToReadonlyQueryString(QueryString, "SPAppWebUrl", TargetWebURL, System.Web.HttpContext.Current.Request);
Utility.AddToReadonlyQueryString(QueryString, "SPLanguage", CurrentSharePointContext.SPLanguage, System.Web.HttpContext.Current.Request);
Utility.AddToReadonlyQueryString(QueryString, "SPClientTag", CurrentSharePointContext.SPClientTag, System.Web.HttpContext.Current.Request);
Utility.AddToReadonlyQueryString(QueryString, "SPProductNumber", CurrentSharePointContext.SPProductNumber, System.Web.HttpContext.Current.Request);
//This is a special line, we need to get the AppOnly access token and pass it along to the target site, its is a little counter intuitive
//Because we are using TokenHelper.GetS2SAccessToeknWithWindowsIdentity - but we pass NULL as the User identity, this will
//check the app manifest and if the app has a CERT and AppOnly Permission it will return a valid app only token to use
Utility.AddToReadonlyQueryString(QueryString, "AppContextToken", TokenHelper.GetS2SAccessTokenWithWindowsIdentity(new Uri(TargetWebURL), null), System.Web.HttpContext.Current.Request);
//Return the newly created context
return SharePointContextProvider.Current.CreateSharePointContext(HttpContext.Request, TargetWebURL).CreateAppOnlyClientContextForSPAppWeb();
}
如您所见，我不得不破解 Querystring 并获取一些值，所以这是执行此操作的实用程序 class：
public class Utility
{
public static void UpdateReadonlyQueryString(NameValueCollection collectionToUpdate, string paramName, string paramValue, HttpRequest Request)
{
collectionToUpdate = (NameValueCollection)Request.GetType().GetField("_queryString", BindingFlags.NonPublic | BindingFlags.Instance).GetValue(Request);
PropertyInfo readOnlyInfo = collectionToUpdate.GetType().GetProperty("IsReadOnly", BindingFlags.NonPublic | BindingFlags.Instance);
readOnlyInfo.SetValue(collectionToUpdate, false, null);
collectionToUpdate[paramName] = paramValue;
readOnlyInfo.SetValue(collectionToUpdate, true, null);
}
public static void AddToReadonlyQueryString(NameValueCollection collectionToUpdate, string paramName, string paramValue, HttpRequest Request)
{
collectionToUpdate = Request.QueryString;
collectionToUpdate = (NameValueCollection)Request.GetType().GetField("_queryString", BindingFlags.NonPublic | BindingFlags.Instance).GetValue(Request);
PropertyInfo readOnlyInfo = collectionToUpdate.GetType().GetProperty("IsReadOnly", BindingFlags.NonPublic | BindingFlags.Instance);
readOnlyInfo.SetValue(collectionToUpdate, false, null);
collectionToUpdate.Add( paramName, paramValue);
readOnlyInfo.SetValue(collectionToUpdate, true, null);
}
}
最后，SharePoint 访问代码看起来与网络上的大部分相同 SharePoint 代码，我不得不从中删除一些可以识别项目或它的服务对象的内容，但它应该很容易从里面挑选你需要的东西
try
{
//Get the name of the sharepoint list that needs to be updated from settings
var ListName = ConfigurationManager.AppSettings[Constants.SettingsConstants.SPLaunchQueList];
var TargetSiteToUpdate = "URL TO THE SITE YOUR TRYING TO UPDATE";
//Get the sharepoint context from session
var spContext = <SOME HOW CREATE YOUR CONTEXT>
//Lets create a client context from the current sharepoint context to the target site
//NOTE this requires the application to HAVE Tenant level permission, it must be trusted by
//the farm admin
using (var spClientContext = CreateRemoteSharePointContext(TargetSiteToUpdate, spContext))
{
//Get the current Web (Sharepoint Web) from the client context
var web = spClientContext.Web;
//Load all the webs properties including title , url all the lists and get the subwebs if any as well
spClientContext.Load(web, x => x.Title, x => x.Url, x => x.Lists, x => x.Webs.Include(w => w.Title, w => w.Url));
spClientContext.ExecuteQuery();
//Lets grab the list that needs to be updated
SP.List OrgList = web.Lists.GetByTitle(ListName);
//Construct a caml query Where the groupID of the SQL Server record is the same
//as the list GroupID
var caml = new Caml<DetailParts>().Where(o => o.GroupID == updateRecord.GroupID);
CamlQuery camlQuery = new CamlQuery();
camlQuery.ViewXml = caml.ToString();
//Load the CAML query
ListItemCollection Rows = OrgList.GetItems(camlQuery);
spClientContext.Load(Rows);
spClientContext.ExecuteQuery();
//The CAML Query should only return one row because GroupID should be UNQIUE
//however due to how sharepoint returns list data we are forcing the first value
//here
ListItem RowToUpdate = Rows[0];
//Get a list of sharepoint columns that match the local detail parts
var ColumnsToUpdate = GetSharePointColumns(typeof(DetailParts));
RowToUpDate["SomeColumn"] = "YOUR NEW VALUE";
RowToUpdate.Update();
//Commit the changes
spClientContext.ExecuteQuery();
}
}
}
catch (Exception ex)
{
//Log any exception and then throw to the caller
logger.Error("Sharepoint exception", ex);
}
最后一段代码应该在某种函数或方法中，我只是提取了相关部分。正如我所说，这是我发现唯一可行的方法，如果有人有更好的方法，请分享它，因为我不是 SharePoint 专家。