![]() ![]() ![]() EntityDB has a few properties like UserName, Password etc. The generation created a class called EntityDB. I generated my database from model definition. I'd like to show a few code snippet and ask somebody help me to rewrite my code to use ObservableCollection. ![]() The collection itens implement INotifyPropertåhanged. I don't really understand how could I implement this. Im working on a WPF project where I have a datagrid bound to an ObservableCollection. But if the change of properties happens ONLY through bindings, then even this is. To update properties in an entity, INotifyPropertåhanged must be implemented in it. Therefore, the CollectionChanged event is not raised. But two objects in code-behind cause your problem - you load file into vm object, but its not the one that is held in DataContext. In this case, you are modifying the properties of the item (entity) of the collection, not the collection itself. wpf datagrid observablecollection propertychanged Share. Find the index where the inserted item belongs. You can get rid of one in xaml, once in MainWindow constructor you set DataContext xaml-one is overridden. I have a datagrid where I need to calculate the total of the Price column of a nested datagrid, like so. It also produces two events for each insert (one for Add and one for Move ), which also isnt necessary. I've heard I should use ObservableCollection as the itemsource and then for example if I submit a new record my list will refresh automatically and I get other cool things. Your code unnecessarily sorts the whole collection on each insert (which is likely going to be O (n log n)). In my WPF clien I use DataGrid to show a few thing. Created a database and now my WPF client gets the data from my SQL database. I've extended this with a little entity framework. I've made a WebService about this video tutorial:Ä®verithing works fine. ![]()
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