StackOverflow2013

Note that there are some explanatory texts on larger screens.

plurals

PO
primarykey
Id
12992868
data
AcceptedAnswerId
0
AnswerCount
0
ClosedDate
CommentCount
3
CommunityOwnedDate
CreationDate
2012-10-20T21:29:46.300
FavoriteCount
0
LastActivityDate
2012-10-20T22:49:37.917
LastEditDate
2017-05-23T11:48:10.173
LastEditorUserId
-1
OwnerUserId
389966
ParentId
12954279
PostTypeId
2
Score
1
ViewCount
0
LastEditorDisplayName
text
Body
I believe this isn't a problem with <code>ExpandoObject</code> not implementing <code>INotifyPropertyChanged</code> (because <a href="http://msdn.microsoft.com/en-us/library/system.dynamic.expandoobject_events.aspx" rel="nofollow noreferrer">it does</a>). What I'm thinking is that your problem is the combination of <code>INotifyCollectionChanged</code> and using a converter. What happens is that converters are called when the property changes, but they aren't called when the collection changes. This will cause the UI not to update when an item is added or removed from the bound collection. You can have a look at these questions for more information about this problem: <ul> <li><a href="https://stackoverflow.com/questions/1675429/how-do-i-update-an-ivalueconverter-on-collectionchanged">How do I update an IValueConverter on CollectionChanged?</a></li> <li><a href="https://stackoverflow.com/questions/787188/why-is-converter-not-called-when-collection-changes">Why is Converter not called when Collection changes?</a></li> </ul> You could see if that's really your issue by setting a breakpoint in your converter and see if it's being called when you add the new item. If that's indeed the issue, you could either try to work your way around this without using a converter, or use a <code>MultiValueConverter</code> that will also receive the <code>Count</code> property (which will only act as a trigger), like so: <pre class="lang-xml prettyprint-override"><code><DataGrid> <DataGrid.ItemsSource> <MultiBinding Converter="{local:MyConverter}"> <Binding Path="Items" /> <Binding Path="Items.Count" /> </MultiBinding> </DataGrid.ItemsSource> </DataGrid> </code></pre> <pre class="lang-cs prettyprint-override"><code>public class MyConverter : MarkupExtension, IMultiValueConverter { public object Convert(object[] values, Type targetType, object parameter, System.Globalization.CultureInfo culture) { // Your converter logic which will use values[0] (the bound collection). // Ignore anything else in the values[] array. } public object[] ConvertBack(object value, Type[] targetTypes, object parameter, System.Globalization.CultureInfo culture) { throw new NotImplementedException(); } public override object ProvideValue(IServiceProvider serviceProvider) { return this; } } </code></pre>
Tags
Title
singulars
PostAcceptedAnswerId
1. This table or related slice is empty.
PostParentId
1. POUI does not update with list of ExpandoObject
 singulars
 PostTypePostTypeId
 PTQuestion
PostTypePostTypeId
1. PTAnswer
UserLastEditorUserId
1. USCommunity
UserOwnerUserId
1. USAdi Lester
plurals
PostLinksPostIdRelatedPostId
1. This table or related slice is empty.
PostLinksRelatedPostIdPostId
1. This table or related slice is empty.
PostsAcceptedAnswerId
1. This table or related slice is empty.
PostsParentIdCreationDate
1. This table or related slice is empty.
VotesPostIdCreationDate
1. VO
 singulars
 PostPostId
 PO
 UserUserId
 This table or related slice is empty.
 VoteTypeVoteTypeId
 VTUpMod
CommentsPostId

Querying!

Guidance

A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.