observablecollection

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EntityFramework Deleting Objects while Observing Collections and Property Changes

I have an EntityService class which wraps around entity operations and also provides the WPF application ObservableCollections of materialized entities.[详细]

2023-03-13 22:27 分类：问答
ObservableCollection vs Normal List for Async Webservices Call

All, I was just implementing a Webservices method that needs to take as an argument a list of objects. On the client side, I tried to call this passing it a list of the objects, but the compiler comp[详细]

2023-03-13 16:27 分类：问答
Is it possible to return a read-only ObservableCollection that the caller can't modify?

Consider the following code: public ObservableCollection<Message> Messages { get { return new ObservableCollection<Message>(); }[详细]

2023-03-13 09:51 分类：问答
Binding textbox to ObservableCollection

I\'m trying to get bind a textbox text property to an observable collection, and report changes back to the collection. The ContactLog property gets set from the calling page.[详细]

2023-03-13 02:16 分类：问答
I am Adding and Removing from ObservableCollection but the Grid is not updating

I am using this code to update my grid. It is not working. Grid is not updating. I cannot find any problem with the code. This is a Help Desk app. I am trying to update a closed ticket on the server w[详细]

2023-03-12 23:02 分类：问答
Refresh ObservableCollection by changes on a remote server

I am fetching data from an URI and parseing the xml to populate my ObservableCollection<\"classname\"> and showing it on the GridView in my WPF project. The problem I am facing is, when i delete an[详细]

2023-03-12 22:21 分类：问答
Filter users by one keyword in a nested observableArray

I am trying to filter my users observableArray which has a nested keywords observableArray based on a keywords observableArray on my viewModel.[详细]

2023-03-12 19:39 分类：问答
How to Display ObservableCollection<string> in a UserControl

I\'m new to WPF and I\'ve found some similar questions but can\'t quite figure out the last part.I have a ViewModel with an ObservableCollection that contains error messages. I want to display these o[详细]

2023-03-12 12:30 分类：问答
Wrapped ObservableCollection<T> throwing `'EditItem' is not allowed for this view` when bound to a WPF DataGrid

I created a wrapper to extend an ObservableCollection<T> [Serializable] public abstract class ModelCollection<TModel> : ModelCollectionBase,[详细]

2023-03-12 11:05 分类：问答
do something before collection changes in observablecollection in wpf

I am not sure what i am trying to achieve is actually achievable or not. I have an observablecollection with me and its collectionchanged event is already been handled. What i want to do is I want to[详细]

2023-03-12 04:42 分类：问答