hello, i've got two comboboxes with the same content. the user should not be allowed to choose the same item twice. therefore the comboboxes' contents (= selectedindex?) should never be equal. my first attempt was to comapare the selectedindex with a datatrigger to show/hide a button: <DataTrigger Binding="{Binding ElementName=comboBo...
Hello, I hope you can help me, I have a problem with WPF DataBinding in a FlowDocument. Here's a short description what I want to do: My aim is to print or export a XPS-Document which is build from a FlowDocument. In the FlowDocument I set some XML-Bindings which should represent the content of the XMLNode. In my XMLSource i'm storing v...
I want to change the background color of our apps main window when a property changes. We have a business date that can be changed and I want to change the window background when it has changed from expected. I've set up a property to tell this. But can I set a style datatrigger on a window that changes itself? Or would I need to do ...
I have the following xaml: <DockPanel> <DockPanel> <CheckBox IsChecked="{Binding Path=Test}" /> <CheckBox IsChecked="{Binding Path=Test}" /> </DockPanel> <DockPanel DockPanel.Dock="Left" Width="10" Background="Blue"> <DockPanel.Style> <Style> <Style.Triggers> ...
Is there a way to do a comparison on object type for a trigger? <DataTrigger Binding="{Binding SelectedItem}" Value="SelectedItem's Type"> </DataTrigger> Background: I have a Toolbar and I want to Hide button's depending on what subclass is currently set to the selected item object. Thanks ...
Is there a way to define an animation somewhere in xaml (eg. as a resource) once and then reuse it multiple times? I have a lot of independent brushes across differnt datatemplates that independently need to start the same kind of animation based on a datatrigger. Now since it seems that an animation has to define an Storyboard.TargetNam...
I currently have a listbox that has its selected item bound to a property on my ViewModel. Whenever the selected item isn't null I want to perform an animation on it. However I keep getting the following error "Cannot freeze this Storyboard timeline tree for use across threads" and from research sort of understand why this is happenin...
I have a WPF Datatemplate that contains a some DataTriggers that start animating the color of a visual. How can I start the animation beginning with the actual value the color propery currently has? Since there might be another animation currently acitve I can not start a new one but when I remove the animation using DataTriggers ExitAct...
How can I remove a storyboard in XAML (i.e. RemoveStoryboard action in a DataTrigger) but keep the value that was animated. Similar to the Animatable.BeginAnimation: If the animation's BeginTime is null, any current animations will be removed and the current value of the property will be held. ...
I have created an attached property to extend a Button class with additional state: <Button v:ExtensionHelper.OperationMode="{Binding MyObject.OperationMode}" Command="{Binding MyObject.Select}" Style="{StaticResource operationModeControlTemplateStyle}" /> Then I want to acces this value in the controltemplate using Datatriggers like ...
I have a ListBox. Now I want to write a DataTemplate in such way, that the first item will have red background and white background for other items. I guess I need to write a DataTrigger, but I have no idea how do determine that DataTemplate is applying to the first item. ...
I have a combobox bound to a ViewModel property called "Property". "Property" is a TypeDescriptor. When user changes value in combobox the "Property" is updated. On the UI i would like to either hide or make visible different controls: textbox, combobox, date picker etc. Problem is datatrigger is not working as expected. <Style x:Ke...
I've been having trouble using a value converter with a data trigger. In some of my code it seems like the DataTrigger's Path is being applied to the root element, rather than the element which the style applies to. I created a simple test case, and I don't understand its behavior. I'm expecting the Button to turn red or blue depending ...
Hey I have an Ellipse defined as so <Ellipse Stroke="#FF474747" Style="{StaticResource SelectedTemplate}" Fill="{StaticResource RedGradient}" /> I also have two styles setup like so <RadialGradientBrush x:Key="RedGradient" GradientOrigin="1,1"> <GradientStop Color="White"/> <GradientStop Color="Red" Offset="1"/> </RadialGrad...
I have ListView with binding on ObservableCollection which has INotifyPropertyChanged implemented. When user open window, data will be displayed but I want to change backgorund on cells where data was changed in meanwhile... I have been trying with Data triggers, but they can be triggered just on certain values. I want to trigger when v...
I have the following data trigger on the ListBoxItems in my Multi-selection ListBox <DataTrigger Value="True"> <DataTrigger.Binding> <MultiBinding Converter="{StaticResource DisableWorkItemConverter}"> <Binding ElementName="MainForm" Path="PickedWorkItemID"/> <Binding Path="Id"/> </MultiBindin...
Hi all, my problem is here: I have some class public class Component { ... private ServiceController service; ... public int ServiceStatus { get { switch(service.Status) { case ServiceControllerStatus.Stopped: return 0; case...
I have a custom dependency property that I would like to use as a data trigger. Here is the code behind: public static readonly DependencyProperty BioinsulatorScannedProperty = DependencyProperty.Register( "BioinsulatorScanned", typeof(bool), typeof(DisposablesDisplay), new FrameworkPropertyMetadat...
I have a style which toggles the visibility of an image depending on an underlying DataContext property. Unfortunately I keep getting an error: 'Must specify both property and value for setter' The XAML looks like <Style TargetType="{x:Type igDP:LabelPresenter}" x:Key="BuySellLabelStyle"> <Setter Property="Template"> ...
Blend supports displaying the graphical representation of a style resource, and allows you to select an active property/event trigger to view or modify. However, it's a common occurrence to have visual elements controlled by DataTriggers. Is it possible to tell the designer that it should consider a DataTrigger 'active' so that its visua...