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I don't believe you may avoid this behavior, unless you use another control other than the TabControl. The TabControl is a ItemControl-derived component: if its content is created via DataTemplate (as you done), the actual content is generated every time upon the current selection. Another option is to fill the TabControl with direct content, and the inner controls should be preserved across the selection. Have a look here: <a href="http://msdn.microsoft.com/en-us/library/system.windows.controls.tabcontrol(v=vs.110).aspx" rel="nofollow">http://msdn.microsoft.com/en-us/library/system.windows.controls.tabcontrol(v=vs.110).aspx</a> UPDATE: First off, I am not sure to have understand what you want, but here is a solution based on what I mean. The fundamental trick is hosting directly the tab-contents, instead of creating via data-templating. That is: <pre><code> <TabControl> <TabItem Header="Tab1"> <TextBlock Text="Page 1" HorizontalAlignment="Center" VerticalAlignment="Center" /> </TabItem> <TabItem Header="Tab2"> <CheckBox Content="check me" HorizontalAlignment="Center" VerticalAlignment="Center" /> </TabItem> <TabItem Header="Tab3"> <TextBlock Text="Page 3" HorizontalAlignment="Center" VerticalAlignment="Center" /> </TabItem> </TabControl> </code></pre> The above snippet should "persist" the checkbox value across the tabs flipping. But you need (or desire) some kind of templating, or a dynamic way to create the right content upon a certain data added to the tabcontrol. The following trick should solve your problem: <pre><code> <TabControl> <TabItem Header="Tab1" > <ContentControl Content="{Binding Path=A}" ContentTemplateSelector="{StaticResource sel}" /> </TabItem> <TabItem Header="Tab2" > <ContentControl Content="{Binding Path=B}" ContentTemplateSelector="{StaticResource sel}" /> </TabItem> <TabItem Header="Tab3" > <ContentControl Content="{Binding Path=C}" ContentTemplateSelector="{StaticResource sel}" /> </TabItem> </TabControl> </code></pre> This is using a trivial set of templates as follows: <pre><code><Window.Resources> <local:MySelector x:Key="sel" /> <DataTemplate x:Key="dtplA"> <StackPanel Margin="30,30"> <TextBlock Text="A: " /> <TextBox /> </StackPanel> </DataTemplate> <DataTemplate x:Key="dtplB"> <StackPanel Margin="30,30"> <TextBlock Text="B: " /> <TextBox /> </StackPanel> </DataTemplate> <DataTemplate x:Key="dtplC"> <StackPanel Margin="30,30"> <TextBlock Text="C: " /> <TextBox /> </StackPanel> </DataTemplate> </Window.Resources> </code></pre> And the behind-code is even more trivial: <pre><code>public class VM { public A A { get; set; } public B B { get; set; } public C C { get; set; } } public class A { } public class B { } public class C { } public class MySelector : DataTemplateSelector { public override DataTemplate SelectTemplate(object item, DependencyObject container) { if (item != null) { return (DataTemplate)((FrameworkElement)container).FindResource("dtpl" + item.GetType().Name); } else { return base.SelectTemplate(item, container); } } } </code></pre> If you try this small example, the text typed into the textboxes will persist across the tabs flipping. That is, the templates will be called once only. Let me know.
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1. POStop ContentTemplate Selector invoke on TabControl selection change event
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1. USMario Vernari
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1. USMario Vernari
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1. COIf I am not using ContentTemplateSelector like above code, is there any way I can achieve this. I need the content template selection should not done during tab change event and the my content is changing in each tabitem.
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 USArun
2. COVemari : I will try the solution. But for me the issue is TabItems are dynamic and content will be dynamic. i have updated a new sample code snippet above which describes the problem. Anyways I will try to put your solution and will let you know
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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.