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POWPF Can't Select Items in Datagrid after adding it to the ObservableCollection
 

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  1. POWPF Can't Select Items in Datagrid after adding it to the ObservableCollection
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    <p>I have a datagrid in my view that is bound to an ObservableCollection in my viewmodel, the issue that I am having is that after I programmtically add an a new Item to my ObservableCollection it appears in the Datagrid however I "Can and Cannot" select it, I know its a sounds a bit wacky but bear with me. In code its somthing along the lines of:</p> <pre><code>&lt;DataGrid Grid.Column="0" AutoGenerateColumns="False" ItemsSource="{Binding Path=MyList} SelectedValue{Binding Path=SelectedMyItem}... &gt; &lt;/Datagrid&gt; </code></pre> <p>Then in my viewmodel:</p> <pre><code> private ObservableCollection&lt;MyType&gt; myList; public ObservableCollection&lt;MyType&gt; MyList { get { return myList;} } privte void AddItem(MyType item) { myList.Add(item) } public MyType SelectedMyItem {get;set;} </code></pre> <p>Now what happens is the Datarid gets updated and the new items appears in the grid. However when I try to select it, the grid highlights the previous item in the list, but the black border (that a selected item gets) appears around the new item. Aswell my SelectedValue Binding gets set to the new item. I have also created a context menu that allows user to delete items and when I right click and try to delete the newly added item, it instead deletes the previous item in list.<br /> However when this happens I am then able to properly select the new item. So I am guessing I need away to to refresh the datagrid I am assuming(note if I trigger INotifyPropertyChanged for MyList the sane thing still happens) </p> <p><strong>EDIT:</strong></p> <pre><code>public override bool Equals(object obj) { var o = obj as MyType; if (o == null) return false; return o.MyTypeId == this.MyTypeId; } </code></pre>
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    1. USHeinrich
    1. USHeinrich
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    1. COPlease show us `ARGReportGroup`, or `MyType`, which are presumably the same thing. Maybe you've overridden `Equals` and that is causing the `DataGrid` to be confused...guessing without code though.
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      1. POWPF Can't Select Items in Datagrid after adding it to the ObservableCollection
      1. USKent Boogaart
    2. COIsSynchronizedWithCurrentItem = true
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      1. POWPF Can't Select Items in Datagrid after adding it to the ObservableCollection
      1. USGayot Fow
    3. CO@KentBoogaart, Yea I did override Equals however I am just forcing it to check equals on the id instead. The id is an Int.
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      1. POWPF Can't Select Items in Datagrid after adding it to the ObservableCollection
      1. USHeinrich
 

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