I am trying to retrieve a list of user generated Lists from a specified website. I do not want System generated lists (eg MicroFeed) nor Document Libraries. Using the Microsoft example I have this code:
public static void LoadLists(Microsoft.SharePoint.Client.Web web, List<String> foldersList)
{
var ctx = web.Context;
ListCollection collList = web.Lists;
IEnumerable<List> listInfo = ctx.LoadQuery(
collList.Include(
list => list.Title,
list => list.Fields.Include(
field => field.Title,
field => field.InternalName)));
ctx.ExecuteQuery();
foreach (List oList in listInfo)
{
FieldCollection collField = oList.Fields;
foreach (Microsoft.SharePoint.Client.Field oField in collField)
{
Regex regEx = new Regex("name", RegexOptions.IgnoreCase);
if (regEx.IsMatch(oField.InternalName))
{
Console.WriteLine("List: {0} \n\t Field Title: {1} \n\t Field Internal Name: {2}",
oList.Title, oField.Title, oField.InternalName);
}
}
}
}
However this returns all Lists and Document Libraries (and heaven knows what else). Is there an easy way to just get back the user defined lists? Here is an example of what I would like to get:
And looking at the documentation from Microsoft they seems to use the term list to refer to actual lists (tables) and document libraries (folders). What is the proper nomenclature for getting the list that is really just like an excel spreadsheet of data? Finally, is it possible for lists (tables) to be nested in side a Document Libraries? I can't seem to be able to do this, but I wanted to check since I am new to SharePoint.
Thanks!
So after having to lookup lots of examples (not from Microsoft, thank you) and stepping thru actual responses, here is the code for loading only the Lists and their field columns (not hidden) created by the user. I am sure that this could be optimized/cleaned up (for example not having to run the secondary queries to get List attributes, but it gave me access denied in original query), but it is working for me. Also needs some loving care for try-catches in case things go south.
First a couple of classes to hold the data:
public class SharePointColumn
{
public string Title { get; set; }
public string InternalName { get; set; }
public string TypeAsString { get; set; }
}
public class SharePointLibrary
{
public SharePointLibrary()
{
Columns = new List<SharePointColumn>();
}
public string Title { get; set; }
public Boolean IsList { get; set; } // If true a list, else DocumentLibrary
public List<SharePointColumn> Columns { get; set; }
}
Then the real code.
public static void LoadLists(Microsoft.SharePoint.Client.Web web, List<SharePointLibrary> sharePointLibraries)
{
var ctx = web.Context;
ListCollection collList = web.Lists;
IEnumerable<List> listInfo = ctx.LoadQuery(
collList.Include(
list => list.Title,
list => list.Fields.Include(
field => field.Title,
field => field.InternalName,
field => field.Hidden,
field => field.TypeAsString)));
ctx.ExecuteQuery();
foreach (List oList in listInfo)
{
// Had to add these because trying to add in above query failed
ctx.Load(oList);
ctx.ExecuteQuery();
// 544 Base Template is MicroFeed
if (oList.Hidden == false && oList.IsCatalog == false && (!oList.IsObjectPropertyInstantiated("IsSiteAssetsLibrary") || oList.IsSiteAssetsLibrary == false) &&
oList.BaseType != BaseType.DocumentLibrary && oList.BaseTemplate != 544)
{
FieldCollection collField = oList.Fields;
SharePointLibrary lib = new SharePointLibrary
{
Title = oList.Title,
IsList = true,
Columns = new List<SharePointColumn>()
};
foreach (Microsoft.SharePoint.Client.Field oField in collField)
{
if (!oField.Hidden)
{
SharePointColumn col = new SharePointColumn();
col.Title = oField.Title;
col.InternalName = oField.InternalName;
col.TypeAsString = oField.TypeAsString;
lib.Columns.Add(col);
}
}
sharePointLibraries.Add(lib);
}
}
}
Related
i'm trying to create an application where data in a list must be inserted into a database table at once. I made some research and found out that this is possible using user-defined table types where in c# a datatable is used and passed to a stored procedure that is executed. now my problem is that there are no data tables in Xamarin.Android. so I thought to use a list instead. my idea was to create a list in the application and pass it to the webservice method, and in my webservice method I receive the list and convert it to a datatable then pass it as a parameter to the stored procedure. I wrote the following codes:
in my webservice:
[WebMethod]
public bool insrt_dt(List<Class1> lst)
{
SqlParameter param;
SqlConnection conn = new SqlConnection(new DBConnection().ConnectionString);
DataTable dt = list_to_dt(lst);
SqlCommand cmd = new SqlCommand("Insert_Customers", conn);
cmd.CommandType = CommandType.StoredProcedure;
if (conn.State == System.Data.ConnectionState.Closed)
{
conn.Open();
}
param = new SqlParameter("#tblcustomers", dt);
param.Direction = ParameterDirection.Input;
param.DbType = DbType.String;
cmd.Parameters.Add(param);
cmd.CommandTimeout = 300;
int a=cmd.ExecuteNonQuery();
if (a > 0)
{
return true;
}
else return false;
}
}
Class1:
public class Class1
{
public int id { get; set; }
public string name { get; set; }
public string country { get; set; }
}
in my Xamarin.Android app
protected override void OnCreate(Bundle savedInstanceState)
{
base.OnCreate(savedInstanceState);
// Set our view from the "main" layout resource
SetContentView(Resource.Layout.activity_main);
Button btn = FindViewById<Button>(Resource.Id.button1);
btn.Click += delegate
{
wr.WebService1 ws = new wr.WebService1();
wr.Class1 class1 = new wr.Class1();
List<wr.Class1> lst = new List<wr.Class1>(){
new wr.Class1() { id = 1, name = "hgf", country = "khg" },
new wr.Class1() { id = 2, name = "hgf", country = "khg"} };
ws.insrt_dt(lst);
ws.insrt_dtCompleted += Ws_insrt_dtCompleted;
};
}
private void Ws_insrt_dtCompleted(object sender, wr.insrt_dtCompletedEventArgs e)
{
bool l = e.Result;
if (l == true)
Toast.MakeText(this, "khh", ToastLength.Long).Show();
else
Toast.MakeText(this, "ijo'pioo", ToastLength.Long).Show();
}
}
but I keep getting this error:
Argument 1: cannot convert from 'System.Collections.Generic.List<app_dt.wr.Class1>' to 'app_dt.wr.Class1[]
so I used these lines instead
new wr.Class1() { id = 1, name = "hgf", country = "khg" },
new wr.Class1() { id = 2, name = "hgf", country = "khg"} };
wr.Class1[] class1s = lst.ToArray();
ws.insrt_dt(class1s);
now I don't get an error, but it doesn't work, I mean why does it say that the webservice method input must be an array and I've created it as a list. any suggestions for this?
As i know, Xamarin do not support System.Data.SqlClient. If you want to use the database for the Xamarin android project, you could use the SQLite.NET.
Install the package from the NuGet.
NuGet: sqlite-net-pcl https://www.nuget.org/packages/sqlite-net-pcl/
For the code sample about how to use the database in Xamarin, you could check the link below. https://learn.microsoft.com/en-us/xamarin/get-started/quickstarts/database?pivots=windows
For Xamarin.Android, you could check the sample code in the link below. https://learn.microsoft.com/en-us/xamarin/android/data-cloud/data-access/using-sqlite-orm
Inspired by Ayende's article https://ayende.com/blog/89089/ravendb-multi-maps-reduce-indexes, I have the following index, that works as such:
public class Posts_WithViewCountByUser : AbstractMultiMapIndexCreationTask<Posts_WithViewCountByUser.Result>
{
public Posts_WithViewCountByUser()
{
AddMap<Post>(posts => from p in posts
select new
{
ViewedByUserId = (string) null,
ViewCount = 0,
Id = p.Id,
PostTitle = p.PostTitle,
});
AddMap<PostView>(postViews => from postView in postViews
select new
{
ViewedByUserId = postView.ViewedByUserId,
ViewCount = 1,
Id = (string) postView.PostId,
PostTitle = (string) null,
});
Reduce = results => from result in results
group result by new
{
result.Id,
result.ViewedByUserId
}
into g
select new Result
{
ViewCount = g.Sum(x => x.ViewCount),
Id = g.Key.Id,
ViewedByUserId = g.Key.ViewedByUserId,
PostTitle = g.Select(x => x.PostTitle).Where(x => x != null).FirstOrDefault(),
};
Store(x => x.PostTitle, FieldStorage.Yes);
}
public class Result
{
public string Id { get; set; }
public string ViewedByUserId { get; set; }
public int ViewCount { get; set; }
public string PostTitle { get; set; }
}
}
I want to query this index like this:
Return all posts including - for a given user - the integer of how many times, the user has viewed the post. The "views" are stored in a separate document type, PostView. Note, that my real document types have been renamed here to match the example from the article (I certainly would not implement "most-viewed" this way).
The result from the query I get is correct - i.e. I always get all the Post documents with the correct view-count for the user. But my problem is, the PostTitle field always is null in the result set (all Post documents have a non-null value in the dataset).
I'm grouping by the combination of userId and (post)Id as my "uniqueness". The way I understand it (and please correct me if I'm wrong), is, that at this point in the reduce, I have a bunch of pseudo-documents with identical userId /postId combination, some of which come from the Post map, others from the PostView map. Now I simply find any single pseudo-document of the ones, that actually have a value for PostTitle - i.e. one that originates from the Post map. These should all obviously have the same value, as it's the same post, just "outer-joined". The .Select(....).Where(....).FirstOrDefault() chain is taken from the very example I used as a base. I then set this ViewCount value for my final document, which I project into the Result.
My question is: how do I get the non-null value for the PostTitle field in the results?
The problem is that you have:
ViewedByUserId = (string) null,
And:
group result by new
{
result.Id,
result.ViewedByUserId
}
into g
In other words, you are actually grouping by null, which I'm assuming that isn't your intent.
It would be much simpler to have a map/reduce index just on PostView and get the PostTitle from an include or via a transformer.
You understanding of what is going on is correct, in the sense that you are creating index results with userId / postId on them.
Buit what you are actually doing is creating results from PostView with userId /postId and from Post with null /postId.
And that is why you don't have the matches that you want.
The grouping in the index is incorrect. With the following sample data:
new Post { Id = "Post-1", PostTitle = "Post Title", AuthorId = "Author-1" }
new PostView { ViewedByUserId = "User-1", PostId = "Post-1" }
new PostView { ViewedByUserId = "User-1", PostId = "Post-1" }
new PostView { ViewedByUserId = "User-2", PostId = "Post-1" }
The index results are like this:
ViewCount | Id | ViewedByUserId | PostTitle
--------- | ------ | -------------- | ----------
0 | Post-1 | null | Post Title
2 | Post-1 | User-1 | null
1 | Post-1 | User-2 | null
The map operation in the index simply creates a common document for all source documents. Thus, the Post-1 document produces one row, the two documents for Post-1 and User-1 produce two rows (which are later reduced to the single row with ViewCount == 2) and the document for Post-1 and User-2 produces the last row.
The reduce operation the groups all the mapped rows and produces the resulting documents in the index. In this case, the Post-sourced document is stored separately from the PostView-sourced documents because the null value in the ViewedByUserId is not grouped with any document from the PostView collection.
If you can change your way of storing data, you can solve this issue by storing the number of views directly in the PostView. It would greatly reduce duplicate data in your database while having almost the same cost when updating the view count.
Complete test (needs xunit and RavenDB.Tests.Helpers nugets):
using Raven.Abstractions.Indexing;
using Raven.Client;
using Raven.Client.Indexes;
using Raven.Tests.Helpers;
using System.Linq;
using Xunit;
namespace SO41559770Answer
{
public class SO41559770 : RavenTestBase
{
[Fact]
public void SO41559770Test()
{
using (var server = GetNewServer())
using (var store = NewRemoteDocumentStore(ravenDbServer: server))
{
new PostViewsIndex().Execute(store);
using (IDocumentSession session = store.OpenSession())
{
session.Store(new Post { Id = "Post-1", PostTitle = "Post Title", AuthorId = "Author-1" });
session.Store(new PostView { Id = "Views-1-1", ViewedByUserId = "User-1", PostId = "Post-1", ViewCount = 2 });
session.Store(new PostView { Id = "Views-1-2", ViewedByUserId = "User-2", PostId = "Post-1", ViewCount = 1 });
session.SaveChanges();
}
WaitForAllRequestsToComplete(server);
WaitForIndexing(store);
using (IDocumentSession session = store.OpenSession())
{
var resultsForId1 = session
.Query<PostViewsIndex.Result, PostViewsIndex>()
.ProjectFromIndexFieldsInto<PostViewsIndex.Result>()
.Where(x => x.PostId == "Post-1" && x.UserId == "User-1");
Assert.Equal(2, resultsForId1.First().ViewCount);
Assert.Equal("Post Title", resultsForId1.First().PostTitle);
var resultsForId2 = session
.Query<PostViewsIndex.Result, PostViewsIndex>()
.ProjectFromIndexFieldsInto<PostViewsIndex.Result>()
.Where(x => x.PostId == "Post-1" && x.UserId == "User-2");
Assert.Equal(1, resultsForId2.First().ViewCount);
Assert.Equal("Post Title", resultsForId2.First().PostTitle);
}
}
}
}
public class PostViewsIndex : AbstractIndexCreationTask<PostView, PostViewsIndex.Result>
{
public PostViewsIndex()
{
Map = postViews => from postView in postViews
let post = LoadDocument<Post>(postView.PostId)
select new
{
Id = postView.Id,
PostId = post.Id,
PostTitle = post.PostTitle,
UserId = postView.ViewedByUserId,
ViewCount = postView.ViewCount,
};
StoreAllFields(FieldStorage.Yes);
}
public class Result
{
public string Id { get; set; }
public string PostId { get; set; }
public string PostTitle { get; set; }
public string UserId { get; set; }
public int ViewCount { get; set; }
}
}
public class Post
{
public string Id { get; set; }
public string PostTitle { get; set; }
public string AuthorId { get; set; }
}
public class PostView
{
public string Id { get; set; }
public string ViewedByUserId { get; set; }
public string PostId { get; set; }
public int ViewCount { get; set; }
}
}
I'm trying to convert a dynamic list into a list of class-model(Products). This is how my method looks like:
public List<Products> ConvertToProducts(List<dynamic> data)
{
var sendModel = new List<Products>();
//Mapping List<dynamic> to List<Products>
sendModel = data.Select(x =>
new Products
{
Name = data.GetType().GetProperty("Name").ToString(),
Price = data.GetType().GetProperty("Price").GetValue(data, null).ToString()
}).ToList();
}
I have tried these both ways to get the property values, but it gives me null errors saying these properties doesn't exist or they are null.
Name = data.GetType().GetProperty("Name").ToString(),
Price = data.GetType().GetProperty("Price").GetValue(data,
null).ToString()
This is how my Model-class looks like:
public class Products
{
public string ID { get; set; }
public string Name { get; set; }
public string Price { get; set; }
}
Can someone please let me know what I'm missing? thanks in advance.
You're currently trying to get properties from data, which is your list - and you're ignoring x, which is the item in the list. I suspect you want:
var sendModel = data
.Select(x => new Products { Name = x.Name, Price = x.Price })
.ToList();
You may want to call ToString() on the results of the properties, but it's not clear what's in the original data.
I have a list of type Myclass
List<Myclass> liSubjectIdDetail = new List<Myclass>();
where Myclass looks like
public class Myclass
{
public Nullable<decimal> SubjectId { get; set; }
public string SubjectName { get; set; }
}
I am adding records into liSubjectIdDetail from a table
foreach (decimal Id in VarCEMSIdDetail)
{
liSubjectIdDetail.AddRange(db.Stt.MyTable.Where(x => x.Id == Id).Select(x => new Myclass { SubjectId = x.SubjectId, SubjectName = x.SubjectName }).ToList());
}
where Id contains a list of certain Ids on the basis of which records I fetch.
Now I want to get only distinct records in this list.
I have tried it with hashtable in place of List
and I also tried
liSubjectIdDetail= liSubjectIdDetail.Distinct().ToList();
but this too, is not working. Please give me a better solution.
Thanks in advance
Try this extension method
public static class IEnumerableExtensions {
public static IEnumerable<TSource> DistinctBy<TSource, TKey>
(this IEnumerable<TSource> source, Func<TSource, TKey> keySelector)
{
var seenKeys = new HashSet<TKey>();
foreach (TSource element in source)
{
if (seenKeys.Add(keySelector(element)))
{
yield return element;
}
}
}
}
Usage:
liSubjectIdDetail= liSubjectIdDetail.DistinctBy(s => s.SubjectName).ToList();
I need some advice on getting values from a soap web service to display in a dropdownlist using a viewmodel, I currently receive the data for the various dropdownlists from a service class found in a service class library project (n-tier application).
The code for the dropdownlist service follows a similar format to the code below:
public IEnumerable<SelectListItem> getValuesAsSelectItems(string selected)
{
var items = new List<SelectListItem>();
items.Add(new SelectListItem { Text = "Please Select", Value = string.Empty, Selected = (selected == string.Empty) });
foreach (var value in this.getValues())
{
items.Add(new SelectListItem { Text = value.Value, Value = value.Value, Selected = (selected == value.Value) });
}
return new SelectList(items, "Value", "Text");
}
I need a way of passing the values from this service to the viewmodel I have then created 7 controllers for each of the dropdownlist which will all link to partial views that I can reuse throughout the application, dropdownlists include titles, countries, states and others.
An approach you could take is to extract the drop down list values into a viewmodel of their own. So:
Step 1: Create a view model (ItemsViewModel) that encapsulates the drop down list items:
using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Web;
using System.Web.Mvc;
namespace Models
{
public class DropDownListItem
{
public string Text { get; set; }
public string Value { get; set; }
}
public class ItemsViewModel
{
private readonly List<DropDownListItem> _items;
// The selected item:
public string SelectedItem { get; set; }
// The items:
public IEnumerable<SelectListItem> Items
{
get
{
var allItems = _items.Select(i => new SelectListItem
{
Value = i.Value,
Text = i.Text
});
return DefaultItem.Concat(allItems);
}
}
// Default item (i.e. the "select" text) if none selected
public IEnumerable<SelectListItem> DefaultItem
{
get
{
return Enumerable.Repeat(new SelectListItem
{
Value = "-1",
Text = "Select an item"
}, count: 1);
}
}
public ItemsViewModel()
{
}
// Constructor taking in items from service and selected item string:
public ItemsViewModel(List<DropDownListItem> items, string selected)
{
_items = items;
SelectedItem = selected;
}
}
}
Step 2: Create a partial view in the Views folder that binds to the ItemsViewModel:
#model Models.ItemsViewModel
#Html.DropDownListFor(m => m.SelectedItem, Model.Items)
Step 3: In the appropriate controller (e.g. HomeController), place the child action that pulls the data from the service, the view model and the partial view together:
[ChildActionOnly]
public ActionResult DropDownList(string type, string selected)
{
// If you need to call different services based on the type (e.g. Country), then pass through "type" and base the call on that
var items = new ItemsViewModel(
(from g in _service.getTitles() select new DropDownListItem { Text = g.Text, Value = g.Value }).ToList(),
selected);
return PartialView("DropDownPartial", items);
}
Step 4: Drop this line of code into the view where you need the drop down list:
#Html.Action("DropDownList", "Home", new { selected = "2", type = "country" })
Note that selected and type are to be determined whichever way you see fit and are optional.
Hopefully this gives you some inspiration.