Multiselect ListBox
The ListBox has multiple selection already implemented. Just change SelectionMode property to Multiple or Extened. You can use SelectedItems property to get all the selected items afterwards.
wpf
Difference between Bubbling and Tunneling events
WPF gives us a number of different mechanisms for handling events – they are bubbling, tunneling, and direct. These are all known as Routed events. Direct event You are probably already used to the direct routed event. This is where the item itself handles the event that occurred. A good example would be handling he … Read more
How to detect a change in the Text property of a TextBlock?
It’s easier than that! Late answer, but much simpler. // assume textBlock is your TextBlock var dp = DependencyPropertyDescriptor.FromProperty( TextBlock.TextProperty, typeof(TextBlock)); dp.AddValueChanged(textBlock, (sender, args) => { MessageBox.Show(“text changed”); });
WithUrl() not found in Core 3 client
Found a solution: make sure project referencing Microsoft.AspNetCore.SignalR.Client, but not Microsoft.AspNetCore.SignalR.Client.Core.
Hiding a button in WPF
Try one of these: button.Visibility = Visibility.Hidden; button.Visibility = Visibility.Collapsed; Hidden hides the button but the button will still take up space in the UI. Collapsed will collapse the button such that it has zero width and height.
How to center an element in wpf canvas
I came across this post, because I was searching for a way to center an element within a Canvas in XAML only, instead of using Attached Properties. Just in case, you came for the same reason: <Canvas x:Name=”myCanvas”> <Grid Width=”{Binding ActualWidth, ElementName=myCanvas}” Height=”{Binding ActualHeight, ElementName=myCanvas}”> <Label Content=”Hello World!” HorizontalAlignment=”Center” VerticalAlignment=”Center” /> </Grid> </Canvas> One more … Read more
My WPF Application cannot locate resource ‘Mainwindow.xaml’
Change the StartupUri=”MainWindow.xaml” to StartupUri=”FolderName/MainWindow.xaml” Solved my problem, when I moved my MainWindow to the View Folder
How do I make a marquee progress bar in WPF?
I think you simply want to set the IsIndeterminate property of the ProgressBar to true. (See this article, which also has a nice example of a fancy circular progress indicator.)
Difference between {Binding PropertyName} and {Binding Path=PropertyName}
There is a significant difference here which you will run into as soon as you have a complex property path with typed parameters. Conceptually they are equivalent as they both end up setting the Binding.Path, one via the parameterized Binding constructor, the other directly via the property. What happens internally is very different though as … Read more
How to center the content of cells in a data grid?
Final solution: <Style x:Key=”DataGridContentCellCentering” TargetType=”{x:Type DataGridCell}”> <Setter Property=”Template”> <Setter.Value> <ControlTemplate TargetType=”{x:Type DataGridCell}”> <Grid Background=”{TemplateBinding Background}”> <ContentPresenter VerticalAlignment=”Center” /> </Grid> </ControlTemplate> </Setter.Value> </Setter> </Style>