StackOverflow2013

Note that there are some explanatory texts on larger screens.

plurals

PODependencyProperty Binding Does Not Update To Collection CurrentItem
primarykey
Id
11856810
data
AcceptedAnswerId
11873345
AnswerCount
1
ClosedDate
CommentCount
0
CommunityOwnedDate
CreationDate
2012-08-08T02:21:33.040
FavoriteCount
0
LastActivityDate
2012-08-08T21:19:11.493
LastEditDate
2012-08-08T08:17:37.770
LastEditorUserId
546730
OwnerUserId
1578097
ParentId
0
PostTypeId
1
Score
1
ViewCount
609
LastEditorDisplayName
text
Body
I am trying to bind a dependency property to a collection's current selection and for reasons I can't seem to grasp, the binding does not update when the collection changes. In the example below, I show two example. One is updating correctly (on the textblock/run), and the other only displays the initial element and doesn't change when the data grid selection changes. <pre class="lang-xml prettyprint-override"><code><Grid> <Grid.Resources> <CollectionViewSource Source="{Binding Path=List}" x:Key="myViewModel"/> <my:UpdateNotWorking MyObjModel="{Binding Source={StaticResource myViewModel}, Path=CurrentItem}" x:Key="updateNotWorking" /> </Grid.Resources> <DataGrid ItemsSource="{Binding Source={StaticResource myViewModel}}" Name="mylistbox"/> <TextBlock TextWrapping="Wrap" FontWeight="Bold" Foreground="#FF50CEFF" FontSize="24" TextAlignment="Center" Height="75"> <Run Text="{Binding Source={StaticResource myViewModel}, Path=text}" Foreground="#FF00E200" /> </TextBlock> <TextBox Text="{Binding Source={StaticResource updateNotWorking}, Path=MyObjModel.text}" Height="22"/> </Grid> </code></pre> My dependency property in this example is "MyObjModel" on the "UpdateNotWorking" dependency object which is instantiated from the xaml code. I would appreciate any information as to why my property is not updating correctly. <a href="https://skydrive.live.com/redir?resid=100AF80ACE896AA0!6327&authkey=!AGK5kaxS6cpFtEg" rel="nofollow">Example Project</a>
Tags
<c#><.net><wpf><xaml><binding>
Title
DependencyProperty Binding Does Not Update To Collection CurrentItem
singulars
PostAcceptedAnswerId
1. PO
 singulars
 PostTypePostTypeId
 PTAnswer
PostParentId
1. This table or related slice is empty.
PostTypePostTypeId
1. PTQuestion
UserLastEditorUserId
1. USH.B.
UserOwnerUserId
1. USHotStuff68
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. PO
 singulars
 PostTypePostTypeId
 PTAnswer
VotesPostIdCreationDate
1. VO
 singulars
 PostPostId
 PODependencyProperty Binding Does Not Update To Collection CurrentItem
 UserUserId
 This table or related slice is empty.
 VoteTypeVoteTypeId
 VTUpMod
CommentsPostId
1. This table or related slice is empty.

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.