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POHow do I override or alter the inheritance of the child elements when my datacontext is set on the parent element?
 

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  1. POHow do I override or alter the inheritance of the child elements when my datacontext is set on the parent element?
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    <p><strong>Disclaimer</strong> I feel like this is a fairly simple question, so i must reiterate that I did look for an answer and couldn't find anything!</p> <p>Not sure if I am asking the question correctly, but I will tell you this. I am working on becoming more familiar with MVVM, so I am messing around with a ridiculously simple project of two stackpanels, ten textboxes, and some simple binding. Everything works now, since I have two panels, which separates my boxes and lets me set two datacontext. </p> <p>My question is this: </p> <p>a) is it possible to set the datacontext on a parent element (Stackpanel) and have half of my child elements (textboxes) use that context via inheritance and then give the other half of the elements A DIFFERENT data context? </p> <p>and </p> <p>b) if this is possible, how??</p> <p>Thanks people-smarter-than-I</p> <p>Here is the code that is trying so hard, but not really doing anything I want it to be doing:</p> <p>XAML</p> <pre><code> &lt;Grid&gt; &lt;StackPanel&gt; &lt;StackPanel HorizontalAlignment="Left" Margin="8,8,0,75" Width="224" DataContext="{Binding Path=Customer}"&gt; &lt;TextBox Text="{Binding Path=FirstName}" Height="28" Name="label1"/&gt; &lt;TextBox Text="{Binding Path=MiddleName}" Height="28" Name="l2"/&gt; &lt;TextBox Text="{Binding Path=LastName}" Height="28" Name="l3"/&gt; &lt;TextBox Text="{Binding Path=CompanyName}" Height="28" Name="l4"/&gt; &lt;TextBox Text="{Binding Path=EmailAddress}" Height="28" Name="l5"/&gt; &lt;!--I want the next five TextBox elements to bind to a different datacontext--&gt; &lt;TextBox Text="{Binding Path=FirstName}" Height="28" Name="label11"/&gt; &lt;TextBox Text="{Binding Path=MiddleName}" Height="28" Name="l21"/&gt; &lt;TextBox Text="{Binding Path=LastName}" Height="28" Name="l1lgh3"/&gt; &lt;TextBox Text="{Binding Path=CompanyName}" Height="28" Name="l1hj4"/&gt; &lt;TextBox Text="{Binding Path=EmailAddress}" Height="28"/&gt; &lt;/StackPanel&gt; &lt;/StackPanel&gt; &lt;/Grid&gt; </code></pre> <p>Code Behind C#</p> <pre><code> public partial class MainWindow : Window { public MainWindow() { InitializeComponent(); } private void Window_Loaded(object sender, RoutedEventArgs e) { this.DataContext = new MainViewModel(); } } </code></pre> <p>View Model</p> <pre><code> public class MainViewModel : INotifyPropertyChanged { public MainViewModel() { PopulateCustomerInfo(); } private Customer customer; public Customer Customer { get { return customer; } set { customer = value; OnPropertyChanged("Customer"); } } private Customer customer2; public Customer Customer2 { get { return customer2; } set { customer2 = value; OnPropertyChanged("Customer"); } } private void PopulateCustomerInfo() { AdventureWorksLTE ctx = new AdventureWorksLTE(); this.Customer = (from c in ctx.Customers select c).FirstOrDefault(); this.Customer2 = (from c in ctx.Customers orderby c.FirstName descending select c).FirstOrDefault(); } public event PropertyChangedEventHandler PropertyChanged; protected virtual void OnPropertyChanged(string propertyName) { var handle = PropertyChanged; if (handle != null) { var e = new PropertyChangedEventArgs(propertyName); handle(this, e); } } } </code></pre>
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