I combined the template format used by John Myczek and Tri Q’s algorithm above to create a findChild Algorithm that can be used on any parent. Keep in mind that recursively searching a tree downwards could be a lengthy process. I’ve only spot-checked this on a WPF application, please comment on any errors you might … Read more
You can use the built-in FolderBrowserDialog class for this. Don’t mind that it’s in the System.Windows.Forms namespace. using (var dialog = new System.Windows.Forms.FolderBrowserDialog()) { System.Windows.Forms.DialogResult result = dialog.ShowDialog(); } If you want the window to be modal over some WPF window, see the question How to use a FolderBrowserDialog from a WPF application. EDIT: If … Read more
The difference is that Visibility.Hidden hides the control, but reserves the space it occupies in the layout. So it renders whitespace instead of the control. Visibilty.Collapsed does not render the control and does not reserve the whitespace. The space the control would take is ‘collapsed’, hence the name. The exact text from the MSDN: Collapsed: … Read more
A ListView is a specialized ListBox (that is, it inherits from ListBox). It allows you to specify different views rather than a straight list. You can either roll your own view, or use GridView (think explorer-like “details view”). It’s basically the multi-column listbox, the cousin of windows form’s listview. If you don’t need the additional … Read more
There are also some properties you can set to force a control to fill its available space when it would otherwise not do so. For example, you can say: HorizontalContentAlignment=”Stretch” … to force the contents of a control to stretch horizontally. Or you can say: HorizontalAlignment=”Stretch” … to force the control itself to stretch horizontally … Read more
At the lowest level, WinRT is an object model defined on ABI level. It uses COM as a base (so every WinRT object implements IUnknown and does refcounting), and builds from there. It does add quite a lot of new concepts in comparison to COM of old, most of which come directly from .NET – … Read more
Kent wrote an interesting blog about this topic: View Models: POCOs versus DependencyObjects. Short summary: DependencyObjects are not marked as serializable The DependencyObject class overrides and seals the Equals() and GetHashCode() methods A DependencyObject has thread affinity – it can only be accessed on the thread on which it was created I prefer the POCO … Read more
Their names can be a bit confusing :). Here’s a summary: The SelectedItem property returns the entire object that your list is bound to. So say you’ve bound a list to a collection of Category objects (with each Category object having Name and ID properties). eg. ObservableCollection<Category>. The SelectedItem property will return you the currently … Read more
It sounds like you want a StackPanel where the final element uses up all the remaining space. But why not use a DockPanel? Decorate the other elements in the DockPanel with DockPanel.Dock=”Top”, and then your help control can fill the remaining space. XAML: <DockPanel Width=”200″ Height=”200″ Background=”PowderBlue”> <TextBlock DockPanel.Dock=”Top”>Something</TextBlock> <TextBlock DockPanel.Dock=”Top”>Something else</TextBlock> <DockPanel HorizontalAlignment=”Stretch” VerticalAlignment=”Stretch” … Read more
Enable TextWrapping=”Wrap” and AcceptsReturn=”True” on your TextBox. You might also wish to enable AcceptsTab and SpellCheck.IsEnabled too.