I found the following code for showing the selected item in a treeview when focus has left, but I'm having trouble moving the code to App.xaml so any UserControl could use it. This does what I want <TreeView x:Name="trviewArchives" Width="141" Height="154" Canvas.Left="20" Canvas.Top="167" Background="{x:Null}" BorderBrush="#FF08182...
Preface : i know, exist several topics talking about MVVM and how it is good (or bad) but my question is a bit different :i want to know if really exist any successful project that uses partially or completely MVVM, all all as a designer viewpoint. I am starting another project using MVC (web), i have some experience with it and it wor...
I am just wondering is this the way to show dialogs in MVVM? public ICommand OpenFileCommand { get { if (_openFileCommand == null) { _openFileCommand = new RelayCommand(delegate { var strArr = DialogsViewModel.GetOpenFileDialog("Open a file ...", "Text files|*.txt | All Files|*.*")...
How do I stop a video at a specific time using Blend/WPF in C#? Example: When I clicked on a "TreeViewItem" called "MONDAY", the video will start to play. But up to 10sec of that video, I want it to stop. As after 10sec, that video will be showing video of another "TreeViewItem" called "TUESDAY". And when the video is stop, the "Slide...
Hello, I have a DataSet bound to the Window.DataContext; I also have a DataGrid <DataGrid ItemsSource={Binding Tables[Items]}> <DataGrid.Columns> <DataGridTextBoxColumn Header={Binding Path=DataContext.Tables[Names]/Test, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type Window}}} /> </DataGrid.Columns> <...
I have an application that displays a keyboard and tests whether the keys have been pressed or not. The issue I'm having is that when certain keys are pressed like the arrow buttons/tab, the keyboard graphic loses focus and it starts accessing menu items/etc. I tried registering to the preview mouse down event in the MainWindow and set...
I need to build a simple app, A calendar with notes, working with a simple db and standard calendar is easy. the problem is with a feature that i must add: I need that every note will have a Hebrew date and Georgian date; It should work "on the fly", meaning: a user will have the ability to add a note based on a date type of his choice,...
How to stop a video after playing 10 sec. And the video slider will also stop. thanks. My coding: if (threeA.IsSelected == true) { Video.Source = new Uri(@".\step_3.wmv", UriKind.Relative); Video.Play(); descriptionText.Text = "Stepping out."; // When the video play until 10sec, both ...
Hi Guys, I have a very simple radial panel with a few dependency properties like so: public static readonly DependencyProperty RadiusProperty = DependencyProperty.Register("Radius", typeof(double), typeof(CircularPanel), new PropertyMetadata(50.0, new PropertyChangedCallback(RadiusChanged))); private static void RadiusChanged(Dependen...
Let's say we define button style in .Resource tags. The style is apply to all button (TargetTye=Button, x:Key is not set). In some parts of my application, I want to turn this style off. I seek for a solution where a "style undo" feature can happen. Like typing in MS Word, when you try some formation (bold/underline) - should read as a...
HI, I'm working in WPF and i have an interesting requirement. I need my checkboxes to be ThreeState, so if only some of the child elements are selected it shows as indeterminate. But when a use clicks it, i want it to select either true or false. Here is a story to represent my requirements: item - indeterminate subItem - checked...
I have a combobox and I have templated its control template. Togglebutton is a part of the control template. Now when a event is raised on the togglebutton(ex: Checked), I want to change combobox property(ex:Foreground). How to do this? Can we do this using relativesource? ...
To play a video for just 20sec out of the whole video in Blend/WPF using C# language? Thanks. ...
Let's say in my application, there are two regions: 1) used customized theme, and 2) used the system theme (the theme selected by the user in his Windows OS). Region 1 uses the customized themes whilst Region 2 uses the default themes. The official default WPF themes can be downloaded here. What I need is to know the current theme that ...
How do I make WPF TextBox acted as a compact form? This means that "label text" inside TextBox is hiding on the click or when there is "real text". See working prototype ...
I have a custom command and I try to execute them from the context menu, but they are always displayed as disabled unless I click any button on the UI (buttons do not have anything to do with commands). After clicking a button, commands start to be displayed correctly (when they are unavailable they get disabled and enabled if availabl...
First I've create a wpf application, then i add new RibbonWindows to application, say it RibbonWindow1, now i want to set the content of the ribbon control via bellow code and show the ribbon: RibbonWindow1 ribWindow = new RibbonWindow1 { Title = "This is a ribbon window", Content = new UserC...
I have next dependency property: public static DependencyProperty RequestObjectProperty = DependencyProperty.Register("RequestObject", typeof(RegistrationCardSearch), typeof(RegCardSearchForm),new UIPropertyMetadata(Changed)); private static void Changed(DependencyObject d, DependencyPropertyChangedEventArgs e) { Me...
Hi, My Mainpage has a menu that loads usercontrols into a Stackpannel. I've got several usercontrols and some of them have a datagrid. But when I bind a large collection to the datagrid, the datagrid gets much larger than the usercontrol. How can I set the max width/height of the grid to the size of the usercontrol. It seems that the us...
Hi All, i am displaying images inside the list box. If the image URL doesn't have image means it will display textblock with Book title and Author name. Problem: If the image is available i want to hide the textblock. Code: <local:ImageConverter x:Key="myImageConverter"/> <Style x:Key="ListBoxItemStyle" TargetType="{x:Type Lis...