CODEWITHSUNDEEP
c#wpfobservablecollection
user5213262
user5213262

Reputation:

Update Single Item in the ObservableCollection without LINQ

I am trying to create a list of the Components running on the network. I am trying to get all the components in the ObservableCollection. ObservableCollection<ClsComponent> Now my question is if one of the component in the collection get changed / modified how would I be able to get it reflected to my ObservableCollection of Component

  1. Is there a way to change the it directly in the collection itself?
  2. What is the fast and efficient way doing it?

I have tried: to change it using the LINQ : Find the Component in the collection and change it?

var CompFound = Components.FirstOrDefault(x=>x.Id == myId);
Components.Remove(CompFound);
Components.Add(UpdatedComp);

I am very sure there should have been more optimized way of doing this. Please suggest.

Edit

I am trying to write the code in the function where I can get the parameters of Source Component and Destination Component. Function looks like this 

public void UpdateComponent(ClsComponent SourceComp, ClsComponent DestComp)
{
  //do something here 
}

After the execution of the function I want to Replace Source Component with Destination Component.

Upvotes: 1

Views: 4091

Answers (2)

Tedy Pranolo
Tedy Pranolo

Reputation: 1425

One of the most efficient way would be to use a dictionary. There are implementations of ObservableDictionary which will give you the Observable behavior while allowing a fast key-based access to the object. Check this stackoverflow question. It includes Microsoft's

It should work like ObservableCollection, except it's also a dictionary. So you can Create ObservableDictionary<Int,ClsComponent>

To replace the value simply call

Components[myId] = destComp

Upvotes: 0

Mohit S
Mohit S

Reputation: 14064

I believe this might work for you. I am sure you might be looking for this

Components.Insert(Components.IndexOf(SourceComp), DestComp);
Components.Remove(SourceComp);

Upvotes: 1

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