CODEWITHSUNDEEP
wpfcaliburn.micro
David Shochet
David Shochet

Reputation: 5375

How to access properties of a UserControl

I have an application that uses Caliburn.Micro. My View contains a user control which contains e.g. a tab control. I want to be able to access that tab control from the outer ViewModel to select a particular tab. Is it possible? Thanks.

Upvotes: 1

Views: 224

Answers (2)

Benjamin Gale
Benjamin Gale

Reputation: 13177

The standard MVVM way is to have the TabControls SelectedItem property bound to a property on your viewModel.

<TabControl ItemsSource="{Binding PropertyToYourViews}"
            SelectedItem="{Binding PropertyToYourSelectedView}">

 </TabControl>

If you do it this way your ViewModel does not have to know about the existence of the TabControl.

The next step is dependant on your implementation. Your outer ViewModel could simply keep a reference to the child viewModels SelectedView property and access it directly however, If you want to keep your ViewModels decoupled then you will need to implement some sort of notification system. I'm not sure of the specifics of Caliburn.Micro but most MVVM frameworks offer some kind of solution for this.

Upvotes: 2

Kevin DiTraglia
Kevin DiTraglia

Reputation: 26058

Implementation would depend on exactly how you have it set up, but you can bind a variable in your view model to the SelectedItem of the TabControl

Upvotes: 2

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