1. Attached Property bound to task state. Any change will dynamically set data template.
2. Visual State Manager
A DataTemplateSelector does not respond to PropertyChange notifications, so it doesn‘t get re-evaluated when your properties change.
The alternative I use is DataTriggers that changes the Template based on a property.
For example, this will draw all TaskModel objects using a ContentControl, and the ContentControl.Template is based on the TaskStatus property of the TaskModel
<DataTemplate x:Key="OpenTaskTemplate" TargetType="{x:Type local:TaskModel}"> <TextBlock Text="I‘m an Open Task" /> </DataTemplate> <DataTemplate x:Key="ClosedTaskTemplate" TargetType="{x:Type local:TaskModel}"> <TextBlock Text="I‘m a Closed Task" /> </DataTemplate> <DataTemplate DataType="{x:Type local:TaskModel}"> <ContentControl Content="{Binding }"> <ContentControl.Style> <Style TargetType="{x:Type ContentControl}"> <!-- Default Template --> <Setter Property="ContentTemplate" Value="{StaticResource OpenTaskTemplate}" /> <!-- Triggers to change Template --> <Style.Triggers> <DataTrigger Binding="{Binding TaskStatus}" Value="Closed"> <Setter Property="ContentTemplate" Value="{StaticResource ClosedTaskTemplate}" /> </DataTrigger> </Style.Triggers> </Style> </ContentControl.Style> </ContentControl> </DataTemplate>
From: https://stackoverflow.com/questions/13136816/change-data-template-dynamically
Change Data template dynamically
原文：http://www.cnblogs.com/itelite/p/4025611.html