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    <blockquote> <p>What I need is when the Alarm property of my object is set to true I need to change colors, start an animation, create and display other elements in the control.</p> </blockquote> <ul> <li><strong>Change colors:</strong> Bind the Color/Foreground of the element you want to change the color of, to the boolean that sets the alarm, and add an <code>IValueConverter</code> in the binding that returns a <code>Brush</code> based on the boolean.</li> <li><strong>Start an animation:</strong> Use a (data)trigger on whichever element needs to be animated, in that trigger, use a Storyboard to define the animation you want.</li> <li><strong>create and display other elements in the control:</strong> that really depends on how well you did your MVVM, if the elements are a visualisation of an <code>ObservableCollection</code> through a <code>ListBox</code>/<code>ListView</code>/<code>ItemsControl</code> (which it should), wire up a <code>Command</code> to whatever sets the alarm on/off (the Button class has a Command property built in, other <code>UIElement</code>s may require the use of <em>System.Windows.Interactivity</em>) and in the method that this <code>Command</code> will point to, add a new item to the <code>ObservableCollection</code>, the <code>ItemsControl</code> will automatically reflect the change by adding a new control.</li> </ul> <p>Of course this is just raw information, and you're probably not familiar will all these things, that's when Google comes into play ;)</p> <p>HTH,</p> <p>Bab.</p>
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    1. POWPF binding to a function?
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    1. USLouis Kottmann
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    1. COI need to look into the MVVM pattern a little more. Right now I have a Viper data model and it implements INotifyPropertyChanged and I have elements bound directly to it. The control is only displaying the data, not modifying it. The possible problem with my design is that all devices pass in a Viper object containing some data and I "merge" that data into my master Viper object and the UI displays that data. If I create a VM to bind to the UI then incoming client data would need to be translated to the new object type (which is 95% the same as data model Viper) before merging them in. Right?
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    2. COYes, most UI changes in response to a property can and should be arranged using bindings, converters, and triggers, but there's absolutely nothing wrong with stringing model changes off of property changed events registered in the VM.
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      1. USAlain
    3. COActually, there is, and if you keep on doing that, you'll start to have StackOverflowExceptions everywhere. I have been debugging apps done that way, and it's a big pain. Especially since once you started down that path, it just gets messier and messier, until you ultimately have to redo it all, which was my solution.
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      1. USLouis Kottmann
 

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