We Keep Coding

Sharepoint online CSOM generate list item display url

I have a file list inside desktop app thats fetched from the sharepoint online document library. What i want to do is to provide a posibility to show that file in the browser. But i'm not able to generate proper url.

Here is a csom code snippet to get file url in a document library:
using (ClientContext ctx = new ClientContext("https://zheguo.sharepoint.com/sites/dev/"))
{
ctx.Credentials = new SharePointOnlineCredentials(account, secret);
ctx.Load(ctx.Web);
ctx.ExecuteQuery();
List targetList = ctx.Web.Lists.GetByTitle("Documents");
ListItemCollection ItemCol = targetList.GetItems(CamlQuery.CreateAllItemsQuery());
ctx.Load(ItemCol);
ctx.ExecuteQuery();
foreach (Microsoft.SharePoint.Client.ListItem item in ItemCol)
{
if (item.FileSystemObjectType == FileSystemObjectType.File)
{
Console.WriteLine(new Uri(ctx.Url).GetLeftPart(UriPartial.Authority) + item["FileRef"]);
}
}
}
Reference:
Getting the Absolute URL of a File in CSOM

Fatest way to check and create folder in document library within SharePoint Online (CSOM)?

I have a SharePoint Online where I can connect through my console application successfully:
private static ClientContext GetUserContext()
{
var o365SecurePassword = new SecureString();
foreach (char c in o365Password)
{
o365SecurePassword.AppendChar(c);
}
var o365Credentials = new SharePointOnlineCredentials(o365Username, o365SecurePassword);
var o365Context = new ClientContext(o365SiteUrl);
o365Context.Credentials = o365Credentials;
return o365Context;
}
But what I need now to do is to go into my SharePoint Document Library named "doc_archive" and check if there exists a folder with name "K20170409-01".
If not create a new one.
Failed Attempt
ClientContext context = GetUserContext();
Web web = context.Web;
Web webroot = context.Site.RootWeb;
context.Load(web);
context.Load(webroot);
List list = webroot.GetList("doc_archive");
context.Load(list);
FolderCollection folders = list.RootFolder.Folders;
context.Load(folders);
IEnumerable<Folder> existingFolders = context.LoadQuery(
folders.Include(
folder => folder.Name)
);
context.ExecuteQuery();
What is the fastest ways to check and create a folder within a document library in SharePoint Online via CSOM (commandline application)?

If you are happy with using external libraries then the OfficeDevPnP.Core has some great CSOM extensions for SharePoint and SharePoint Online. It's readily available as a NuGet package to add to your projects.
For your requirment there is the EnsureFolderPath extension. This function will check if a folder exists, create it if needed and return the Microsoft.SharePoint.Client.Folder object.
Very easy to use:
var webRelativeUrlToFolder = "/doc_archive/K20170409-01"
var folder = cc.Web.EnsureFolderPath(webRelativeUrlToFolder);
cc.Load(folder);
cc.ExecuteQuery();

I can't vouch for how fast this would be, but it works in the end on 0365. Note that it throws a ServerException if the target already exists.
using (var ctx = new ClientContext(siteUrl))
{
ctx.Credentials = new SharePointOnlineCredentials(username, securePwd);
var list = new ListCreationInformation()
{
Title = title
Description = "User Created Document Library",
TemplateType = asDocumentLibrary ? 101 : 100 // 100 is a custom list.
};
ctx.Web.Lists.Add(list);
ctx.ExecuteQuery();
success = true;
}
Most CSOM examples are found in Powershell. The process in C# CSOM is actually the same, so next time find a Powershell example when a C# one is not available.

Not All Site Collections show up in the results - Sharepoint 2013 Search through CSOM

I am working on a C# code that retrieves all site collection paths from a On-Premise Sharepoint 2013 server. I have the following Site Collections on the server:
/serverurl/
/serverurl/my
/serverurl/my/personal/site1
/serverurl/my/personal/site2
/serverurl/sites/TestSite
/serverurl/custompath/site3
when I run my code , I only get the following site collections:
/serverurl/
/serverurl/my
/serverurl/my/personal/site1
/serverurl/my/personal/site2
I was wondering why my search does not return all the site collections?
here is my code:
ClientContext context = new ClientContext(siteUrl);
var cred = new NetworkCredential(userName, password, domain);
context.Credentials = cred;
KeywordQuery query = new KeywordQuery(context);
query.QueryText = "contentclass:STS_Site";
SearchExecutor executor = new SearchExecutor(context);
query.TrimDuplicates = true;
var resultTable = executor.ExecuteQuery(query);
context.ExecuteQuery();
foreach (var row in resultTable.Value[0].ResultRows)
{
string siteName = row["siteName"] as string;
Console.WriteLine("Site Name: {0}", siteName);
}
Thanks!

I was having the same problem today. I found two solutions.
Regardless if your on-prem or on Office365 we can use Microsoft.Online.SharePoint.Client.Tenant dll. You can use this to get all the Site Collections. You do need your admins to run some power shell if your on-prem. Vesa was nice enough to write a blog about it here
Once you get that done, you can do something like the following (Note:I have not tested this method with a non Admin account) (solution taken from here) Sadly this one will not work for me as I want security trimming and this will code must be ran by a user with tenant read permissions which our users would not normal have.
var tenant = new Tenant(clientContext);
SPOSitePropertiesEnumerable spp = tenant.GetSiteProperties(0, true);
clientContext.Load(spp);
clientContext.ExecuteQuery();
foreach(SiteProperties sp in spp)
{
// you'll get your site collections here
}
I ended up doing this which gets back to using search, I still have a problem, we have well over 500 sites/webs so I'm working with our admins to see if we can increase the max rows search can return. However, the true secret here is TrimDuplicates being set to false, I don't know why SP thinks the results are dups, but it obviously does, so set it to false and you should see all your sits.
KeywordQuery query = new KeywordQuery(ctx);
query.QueryText = "contentclass:\"STS_Site\"";
query.RowLimit = 500;//max row limit is 500 for KeywordQuery
query.EnableStemming = true;
query.TrimDuplicates = false;
SearchExecutor searchExecutor = new SearchExecutor(ctx);
ClientResult<ResultTableCollection> results = searchExecutor.ExecuteQuery(query);
ctx.ExecuteQuery();
var data = results.Value.SelectMany(rs => rs.ResultRows.Select(r => r["Path"])).ToList();
Hope one of the two will work for you.

Sharepoint access to list ignore user permission

I created web part (something like wizard) and need change item value in list, but when get list item, they haven't items (logged user haven't access to this list). Can I ignore sharepoint permission, and update this value?
I use LINQ to sharepoint and get context:
using (SystemOcenContextDataContext ctx = new SystemOcenContextDataContext("http://sh2010/sites/270"))
{
// code :)
}
Update:
make test when get list using:
SPSecurity.RunWithElevatedPrivileges(delegate()
{
using (SPSite ElevatedSite = new SPSite("http://sh2010/sites/270"))
{
using (SPWeb ElevatedWeb = ElevatedSite.OpenWeb())
{
list = ElevatedWeb.Lists["Ankiety i oceny"];
}
}
});
the object list "have" items
but in my project I use sharepoint linq datacontext when using:
SPSecurity.RunWithElevatedPrivileges(delegate()
{
using (SystemOcenContextDataContext ctx = new SystemOcenContextDataContext("http://sh2010/sites/270"))
{
item = ctx.AnkietyIOceny.First();
}
});
the context(ctx) didn't have any items :/
any idea?

SPSecurity.RunWithElevatedPrivileges(delegate()
{
// Pur your code here.
});
Get more details Here

The SharePoint linq provides doesn't work with ElevatedPrivileges. It accesses the SPWeb.Current instance which will have the access rights of the request and not the elevated user.
http://jcapka.blogspot.com/2010/05/making-linq-to-sharepoint-work-for.html
There's a work around, which I've implemented generally the same thing. It's a big awkward but it works as far as I can tell.

SharePoint : How can I programmatically add items to a custom list instance

I am really looking for either a small code snippet.
I have a C# console app that I will use to somehow add list items to my custom list. I have created a custom content type too. So not sure if I need to create an C# class from this content type too. Perhaps not.

I think these both blog post should help you solving your problem.
http://blog.the-dargans.co.uk/2007/04/programmatically-adding-items-to.html
http://asadewa.wordpress.com/2007/11/19/adding-a-custom-content-type-specific-item-on-a-sharepoint-list/
Short walk through:
Get a instance of the list you want to add the item to.
Add a new item to the list:
SPListItem newItem = list.AddItem();
To bind you new item to a content type you have to set the content type id for the new item:
newItem["ContentTypeId"] = <Id of the content type>;
Set the fields specified within your content type.
Commit your changes:
newItem.Update();

To put it simple you will need to follow the step.
You need to reference the Microsoft.SharePoint.dll to the application.
Assuming the List Name is Test and it has only one Field "Title" here is the code.
using (SPSite oSite=new SPSite("http://mysharepoint"))
{
using (SPWeb oWeb=oSite.RootWeb)
{
SPList oList = oWeb.Lists["Test"];
SPListItem oSPListItem = oList.Items.Add();
oSPListItem["Title"] = "Hello SharePoint";
oSPListItem.Update();
}
}
Note that you need to run this application in the Same server where the SharePoint is installed.
You dont need to create a Custom Class for Custom Content Type

You can create an item in your custom SharePoint list doing something like this:
using (SPSite site = new SPSite("http://sharepoint"))
{
using (SPWeb web = site.RootWeb)
{
SPList list = web.Lists["My List"];
SPListItem listItem = list.AddItem();
listItem["Title"] = "The Title";
listItem["CustomColumn"] = "I am custom";
listItem.Update();
}
}
Using list.AddItem() should save the lists items being enumerated.

This is how it was on the Microsoft site, with me just tweaking the SPSite and SPWeb since these might vary from environment to environment and it helps not to have to hard-code these:
using (SPSite oSiteCollection = new SPSite(SPContext.Current.Site.Url))
{
using (SPWeb oWeb = oSiteCollection.OpenWeb(SPContext.Current.Web))
{
SPList oList = oWeb.Lists["Announcements"];
// You may also use
// SPList oList = oWeb.GetList("/Lists/Announcements");
// to avoid querying all of the sites' lists
SPListItem oListItem = oList.Items.Add();
oListItem["Title"] = "My Item";
oListItem["Created"] = new DateTime(2004, 1, 23);
oListItem["Modified"] = new DateTime(2005, 10, 1);
oListItem["Author"] = 3;
oListItem["Editor"] = 3;
oListItem.Update();
}
}
Source:
SPListItemClass (Microsoft.SharePoint). (2012). Retrieved February 22, 2012, from http://msdn.microsoft.com/en-us/library/microsoft.sharepoint.splistitem.aspx.

I had a similar problem and was able to solve it by following the below approach (similar to other answers but needed credentials too),
1- add Microsoft.SharePointOnline.CSOM by tools->NuGet Package Manager->Manage NuGet Packages for solution->Browse-> select and install
2- Add "using Microsoft.SharePoint.Client; "
then the below code
string siteUrl = "https://yourcompany.sharepoint.com/sites/Yoursite";
SecureString passWord = new SecureString();
var password = "Your password here";
var securePassword = new SecureString();
foreach (char c in password)
{
securePassword.AppendChar(c);
}
ClientContext clientContext = new ClientContext(siteUrl);
clientContext.Credentials = new SharePointOnlineCredentials("Username#domain.nz", securePassword);/*passWord*/
List oList = clientContext.Web.Lists.GetByTitle("The name of your list here");
ListItemCreationInformation itemCreateInfo = new ListItemCreationInformation();
ListItem oListItem = oList.AddItem(itemCreateInfo);
oListItem["PK"] = "1";
oListItem["Precinct"] = "Mangere";
oListItem["Title"] = "Innovation";
oListItem["Project_x0020_Name"] = "test from C#";
oListItem["Project_x0020_ID"] = "ID_123_from C#";
oListItem["Project_x0020_start_x0020_date"] = "2020-05-01 01:01:01";
oListItem.Update();
clientContext.ExecuteQuery();
Remember that your fields may be different with what you see, for example in my list I see "Project Name", while the actual value is "Project_x0020_ID". How to get these values (i.e. internal filed values)?
A few approaches:
1- Use MS flow and see them
2- https://mstechtalk.com/check-column-internal-name-sharepoint-list/ or https://sharepoint.stackexchange.com/questions/787/finding-the-internal-name-and-display-name-for-a-list-column
3- Use a C# reader and read your sharepoint list
The rest of operations (update/delete):
https://learn.microsoft.com/en-us/previous-versions/office/developer/sharepoint-2010/ee539976(v%3Doffice.14)