Create ObservableCollection from IList with grouping

Create ObservableCollection from IList with grouping

By : Tammy O'Hara Potvin
Date : November 17 2020, 11:52 AM
may help you . Im trying to pass a grouped observable collection to my view.
code :
  gp=new ObservableCollection(groupedPeople);

Share : facebook icon twitter icon
IList<T> to ObservableCollection<T>

IList<T> to ObservableCollection<T>

By : Nick Novikov
Date : March 29 2020, 07:55 AM
it should still fix some issue I have a method in a Silverlight app that currently returns an IList and I would like to find the cleanest way to turn this into an ObservableCollection so: , You could write a quick and dirty extension method to make it easy
code :
public static ObservableCollection<T> ToObservableCollection<T>(this IEnumerable<T> enumerable) {
  var col = new ObservableCollection<T>();
  foreach ( var cur in enumerable ) {
  return col;
return GetIlist().ToObservableCollection();
Add elements from IList to ObservableCollection

Add elements from IList to ObservableCollection

By : jaymbooz
Date : March 29 2020, 07:55 AM
Hope this helps I have an ObservableCollection, and I'd like to set the content of an IList to this one. Now I could just create a new instance of the collection..: , You could do
code :
public void Foo(IList<Bar> list)
    public static void AddRange<T>(this ObservableCollection<T> collection, IEnumerable<T> items)
IList<T>, IEnumerable<T> and ObservableCollection<T>

IList<T>, IEnumerable<T> and ObservableCollection<T>

By : chandrika chetty
Date : March 29 2020, 07:55 AM
this will help The problem is with covariance. An ObservableCollection isn't an ObservableCollection, and ditto with lists. Here's an example of why not:
code :
ObservableCollection<string> strings = new ObservableCollection<string>();

// This is invalid, but it's what you're trying to do, effectively.
ObservableCollection<object> objects = strings;

// This would have to work... it's fine...
objects.Add(new object());

// And this should be fine too...
string x = strings[0];
// There's nothing you can do to violate type safety here...
Observable<string> strings = new ObservableCollection<string>();
IEnumerable<object> objects = strings;
IList grouping then create new listarray

IList grouping then create new listarray

By : 李恺林
Date : March 29 2020, 07:55 AM
wish help you to fix your issue there have a IList<> have 12 elements, , Try this code:
code :
static void Main(string[] args)
    var list = new List<int> { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 };

    foreach (var b in Batch(list))
        foreach (var n in b)
            Console.Write(n + " ");

static IEnumerable<IList<int>> Batch(IList<int> list)
    for (int i = 0; i < list.Count; i += 2)
        var batch = new List<int>();

        for (int j = i; j < i + 3; j++)
            if (j < list.Count)

        int count = batch.Count;

        for (int j = 0; j < 3 - count; j++)

        yield return batch;
How to cast IList to ObservableCollection<T>

How to cast IList to ObservableCollection<T>

By : Sanjay Bora
Date : March 29 2020, 07:55 AM
will be helpful for those in need CollectionChanged is defined in INotifyCollectionChanged interface. ObservableCollection implements INotifyCollectionChanged.
so for the purpose of subscription to event you can cast ItemsSource to INotifyCollectionChanged:
code :
var list = ItemsSource as INotifyCollectionChanged;
if (list != null)
    list.CollectionChanged += list_CollectionChanged;
Related Posts Related Posts :
  • How to use Addfields in MongoDB C# Aggregation Pipeline
  • MsTest TestCleanup method not called when an unhandled exception is thrown
  • missing last data when exporting gridview to excel
  • How to add array of objects to List in c#
  • Lambda Expression to order (sort) my list collection
  • Library for displaying music notation
  • How to compare two dictionaries in c# and get the output as True and False after validation
  • specify fields to be serialized with JSON
  • How do you obtain the content of a specific node using XmlDocument in C#?
  • How to ignore the first line in a csv file when you read the csv file in C#
  • c# - Problem calling public void from class
  • How to tell a class which objects it should create? Type vs. object confusion :(
  • Save CheckBox state to xml
  • WIX CAQuietExec NETSH Command Fails
  • Issues sending http put request every 60 seconds to RoR app
  • ConfigurationManager.ConnectionStrings.ConnectionString Issue
  • Real size WPF controls for printing
  • How to cancel properly?
  • C# String multiplication error
  • Using Solrnet and Assigning Attributes with Entity Framework Generated POCOs
  • Regex pattern for single backslash
  • TextBox: insert spaces for credit card number?
  • C# DLL loaded for exe-application is not found when launching similar DLL by rundll32.exe
  • Debug a Windows Service with WCF library
  • Open a file from an external assembly?
  • Servicestack RegistrationFeature Unable to bind request
  • Index was outside the bounds of the array confusion
  • Error in Xml to List code. The ':' character, hexadecimal value 0x3A, cannot be included in a name
  • I am trying to do a while loop with a string conditional statement in C#
  • C# 'Cannot access a disposed object. Object name: 'SslStream'.'
  • How to make Gecko use seperate CookieContainer per instance?
  • C# Advanced form "please wait"
  • Send and Receive data C# using network stream
  • How to discover that appsettings changed in C#?
  • Check what needs full trust
  • What is the execution order of an MVC Razor view/layout
  • Table designer (Entity Framework) is too resource intense
  • How to clean up an exception string so it can be displayed via Javascript Alert?
  • Configuring Amazon SES Feedback Notifications via Amazon SNS in ASP.NET MVC (C#)
  • C# api responce and request
  • Dynamodb putitem function not working properly
  • theme in windows phone(light or dark) using c#
  • Backup attached database file(.mdf) using c# and SQL Server
  • What is 'TextFile' and where it is uses in WPF project
  • Using same alias for multiple namespaces
  • how to move mails into separate folders
  • Multithreaded Uploader
  • Memory fragmentation?
  • C# correct exception handling
  • "Could not open macro storage" when accessing using file on another machine
  • How to access other directories of hosted server
  • C# Jagged Array check if value exists/true
  • Why can't I type Clone() properly?
  • exception on accessing dictionary from list
  • Getting the immediate response from server without waiting to 200 message
  • Why am I getting exception Directory Is Not empty?
  • Could not load file or assembly 'CefSharp.dll' or one of its dependencies
  • Sending Email By Using C# in unity3D?
  • Correct usage of await async in webapi
  • Program update code issue
  • shadow
    Privacy Policy - Terms - Contact Us © ourworld-yourmove.org