CODEWITHSUNDEEP
c#castingienumerable
momokjaaaaa
momokjaaaaa

Reputation: 1303

Cast object to IEnumerable

object selectedDataItem;
MyClass.Inventory inventory;
inventory = (MyClass.Inventory) selectedDataItem;

in inventory we can see the details such as:

Trace.Writeline(inventory.Name + " " + inventory.Place);

You see inventory has inventory.Name, Inventory.Place I want to wrap all of the property inside IEnumerable or ObservableCollection so that I can iterate through all of the inventory at once and not by inventory.Name, inventory.Place etc etc...

How can I make inventory IEnumerable so that I can do something like this :

IEnumerable<MyClass.Inventory> enumerable = (IEnumerable<MyClass.Inventory>) inventory;
enumerable = from x in enumerable where x.Name == inventory.Name select x;

Right now if I do this the error is

Unable to cast object of type 'MyClass.Inventory' to type 'System.Collections.Generic.IEnumerable`1[MyClass.Inventory]'.

Upvotes: 5

Views: 42054

Answers (4)

Bharadwaj
Bharadwaj

Reputation: 2553

inventory is an instance of class MyClass.Inventory and its not an enumerable list so that you can cast it directly. If you really want an enumerable with that object then you need to create an empty enumerable and add that object to it.

Update

You have to create a List first and add your object to that list, as,

List<MyClass.Inventory> lst = new List<MyClass.Inventory>();
lst.Add(inventory);

And then you can assign your list to the enumerable, as 

IEnumerable<MyClass.Inventory> enumerable = lst;

reference

Upvotes: 5

Uriil
Uriil

Reputation: 12618

Not sure why do you need this, but once i saw next extension method:

public static class CustomExtensions
{
    public static IEnumerable<T> ToEnumerable<T>(this T input)
    {
        yield return input;
    }
}

Upvotes: 9

Enigmativity
Enigmativity

Reputation: 117009

Just do this:

var enumerable = new [] { inventory };

Upvotes: 14

Aniket Inge
Aniket Inge

Reputation: 25695

In general that would be a bad practice. If the data you're dealing with is not iterable, making it an IEnumerable makes no sense.

On the other hand, if you still want to use IEnumerable<T>, use List<T>, store your object in it, and then do the LINQ query!

Upvotes: 1

Related Questions