I have a simple application which is hosting a Managed DirectX Control using WindowsFormsHost. I've overridden the paint methods in the Control to prevent flicker: protected override void OnPaint(PaintEventArgs e) { if (this.Visible == true) { base.OnPaint(e); } } // Don't paint the background unless the control is not visible prot...
I can't figure this guy out / in desperate need of assistance. I have an ItemsControl and a DataTemplate as the ItemTemplate i.e. <DataTemplate> <StackPanel> <TextBox Text={Binding Prop1}/> <TextBox Text={Binding Prop2}/> </StackPanel> </DataTemplate> I have seen plenty of examples for applying validation to th...
I am not sure why the property is not being called on Binding. Here is the code: <myusercontrol Text ="{Binding Description, UpdateSourceTrigger=LostFocus,Mode=TwoWay, ValidatesOnDataErrors=True}" IsReadOnly ="{Binding AllowEditing}" /> And here is the myusercontrol IsReadOnly property: public static DependencyProperty IsReadOnl...
I have two CheckBoxes and a TextBox. I want to TextBox to have IsEnabled=False if both CheckBoxes have IsChecked=False. Can I do this with a MultiTrigger? I keep getting errors trying to use the Source property. I have it working with MultiDataTriggers as you can see below. But have two questions. 1) Is this my only choice? Can I do it...
I am binding a treeview using a Hierarchical class structure as follows. Store ->ImagePath ->List ->List When I am creating the DataTemplate for the Person, I want to use a combination of the person.name and the image path declared in the Store. Here is the code behind of my MainWindow.xaml file. ` public partial class ...
Hello, I am trying to add control to ContentPresenter on then run, but control I've added does not apply theme. Theres is code with reference to theme in xaml file: <ResourceDictionary.MergedDictionaries> <ResourceDictionary Source="Resources/PocGraphDataTemplates.xaml" /> </ResourceDictionary.MergedDictio...
I have a datagrid and I'm writing a method to search through it to find some text. Practically all of my columns use a DataTemplateSelector, so in my search, I need to be able to take a DataTemplate, apply it to a ContentControl, and then find a TextBlock to get the text to see if it matches my search criteria. I'm trying the following b...
I get an exception thrown at runtime when I set AllowsTransparency="True" I get an exception saying the WindowStyle can not be set to None if AllowsTransparency is set to true. Even if I explicitly say that WindowStyle is set to SingleBorder I get this error. However, if I set WindowStyle to SingleBorder and remove the AllowsTransparency...
I am developing a small application with images and trash box icon on right hand bottom. I have multiple images floating in the main window, and using mouse I can move image from one corner to other corner of window, left, right, top and bottom. I can't figure out how do I catch an event when a image touches and panel (with trash box ...
I'm trying to move a control from one parent to another (if this will work I'm not quite sure). I can get a hold of the control that I want to move. Here is my code: public void MoveElement(UIElement uiElement) { var element = ((FrameworkElement)uiElement).Parent; //TODO:Remove from parent myControl.Children.Add(uiElement); ...
i created a WPF application and i added a setup solution and i did everything to deploy the project and i got my setup.msi i installed it in my system, The problem is my application is running in task manager, but i cant see my application any where in desktop or start menu,but tast manager process show that my application is running. ...
Hi!, I would like to create a simple designer which looks like visual studio. Specifically, I would like my items to have the same behavior as in VS: when they're not selected, a simple label/textblock is shown, when they're selected a textbox lets me edit the value. Which is the best way to achieve this? Thank you ...
I am using wpf Custom Commands. While writing a custom Command, one need to define the owner type. It's Description says that it is the type that is registering the command. I was seeing some sample of custom commands and there the Owner type was UIElement and in some others it was the class name itself. Whats the difference? What should...
byte[] mediaBytes = Convert.FromBase64String("<<strings>>"); XpsDocument doc; ms = new MemoryStream(mediaBytes, 0, mediaBytes.Length); Uri DocumentUri = new Uri("pack://document.xps"); using (Package package = Package.Open(ms, FileMode.Create)) { PackageStore.AddPackage(Docu...
Hi everybody, I try to do a custom CanExecuteChanged event for a command button. Inside CanExecuteChanged event I would like to do some stuff when canExecute value change but I don't want to do it by implementing a custom command button class (deriving from Button and Implementing ICommandSource). Also I don't want to do my stuff into C...
Hello, I have a problem that i cant solve :( I have a user control (xaml file and cs file) in xaml it's like: <UserControl xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxm...
Hi, I have a sub-class of DelegateCommand which fails with an InvalidProgramException, "The Command Language Runtime detected an invalid program." when I call Execute. My sub-class looks like this: public class SaveOrderCommand : DelegateCommand<IOrder> { [Dependency] public IOrderService OrderService { get; set; } p...
I've tried creating a customly chromed window in wpf using WindowStyle None, and AllowsTransparency True, however, when I maximize the window it covers the entire screen (and goes beond it's edges, it also hides the Windows-bar at the bottom of my screen, just like a game in fullscreen). How can I make the behaviour like a normal window,...
Hello, I have a ComboBox that has the SelectedItem bound to the ViewModel. <ComboBox SelectedItem="{Binding SelItem, Mode=TwoWay}" ItemsSource="{Binding MyItems}"> When the user selects a new Item in the View ComboBox, I want to display a prompt and verify that they want to make the change. In the SetItem Property setter in the View ...
Hi all , I want to supply copy funtionality to my WPF app. I display texts in textblocks whitch comes from the server . The user cann't copy this texts and use them. How can do it ? Please you help. Thanks... ...