Wpf label binding not updating

A data service can be configured to limit the amount of queried data that is returned in a single response message.For more information, see Configuring the Data Service. Next Link Uri)) End While class enables you to intercept the events raised when changes are made to the collection, such as an object being added or removed, and when changes are made to the properties of object in a collection. Count = 0 Then ' Load the related Order Details. Load Property(deleted Order, "Order_Details") End If ' Delete the order and its related items For Each item As Order_Detail In deleted Order. Delete Object(item) Next ' Delete the order and then return false since the object is already deleted. Delete Object(deleted Order) Return True Else Return False End If Else ' Use the default behavior.

This is where the Background Worker comes into play - it makes it simple, easy and fast to work with an extra thread in your application.When the data service is paging response data, each response contains a link that is used to return the next page of results. You can modify the data binding events to override the default behavior, which includes the following constraints: ' Method that is called when the Collection Changed event is handled. Get Type() Is Get Type(Order) Then ' Get the context and object from the supplied parameter. Context Dim deleted Order As Order = _ CType(entity Collection Changedinfo. Return False End If End Function ' Method that is called when the Collection Changed event is handled. Get Type() Is Get Type(Orders) Then ' Get the context and object from the supplied parameter. Context Dim deleted Order As Orders = _ CType(entity Collection Changedinfo.For more information, see Loading Deferred Content. Private Function On My Collection Changed( _ By Val entity Collection Changedinfo As Entity Collection Changed Params) As Boolean If entity Collection Changedinfo. Remove Then ' Delete the related items when an order is deleted. Private Function On My Collection Changed( _ By Val entity Collection Changedinfo As Entity Collection Changed Params) As Boolean If entity Collection Changedinfo. Remove Then ' Delete the related items when an order is deleted. Target Entity, Orders) ' Load the related Order Details. Load Property(deleted Order, "Order_Details") ' Delete the order and its related items For Each item As Order_Details In deleted Order. Delete Link(deleted Order, "Order_Details", item) context. Delete Object(item) Next ' Delete the order and then return false since the object is already deleted. Delete Object(deleted Order) Return False Else Return True End If Else ' Use the default behavior.This is quite a surprise to people who are new to Windows programming, when they first do something that takes more than a second and realize that their application actually hangs while doing so.The result is a lot of frustrated forum posts from people who are trying to run a lengthy process while updating a progress bar, only to realize that the progress bar is not updated until the process is done running.

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