Assuming the binding is right and the image files are where they shuld be, can anyone spot why the image in the xaml below won't change when the trigger evaluates to true? Cheers, Berryl <Imag...

somehow I am going in circles here. Please forgive me if the answer to this question is obvious. I want to react to changed properties in the ViewModel in the View. When the properties (bool) chan...

<ListBox.ItemTemplate> <DataTemplate> <Grid x:Name="grid"> <Grid.Background> <SolidColorBrush x:Name="backgroundBrush" Color="Transparent" Opacity="0.1"/> </Gr...

Let's say I have the following simple classes: public class Person { public int Id { get; set; } public string Name { get; set; } } public class PersonHolder { public Person CurrentPerson { g...

How do I define a DataTrigger for a StackPanel? It does have a Trigger property, but defining a trigger here gives the following error on Initialize when starting the application: Failed object...

I'm trying to define a DataTrigger for an Image element so that it shows a connected/disconnected image. I keep getting an Invalid PropertyDescriptor message. Any ideas? <Image> <Image.S...

What is the best way to trigger an animation while using the MVVM pattern? More specifically, I have a form which has several fields. When a user click's the save Button, I would like to show an an...

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 hav...

I have the following xaml: <DockPanel> <DockPanel> <CheckBox IsChecked="{Binding Path=Test}" /> <CheckBox IsChecked="{Binding Path=Test}" /> </DockPanel> <Do...

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 fro...

I want to do something like <DataTrigger Binding="{Binding Something}" ValueIsNot="{x:Null}">

I want my TextBox to have a red background if the ViewModel property = "invalid". What do I have to change so this works? This version tells me that Background does not have a qualifying type name...

I've got the following XAML used to display detailed information about an item selected in a list view. I want the rectangle to show the standard info color behind the text except when the selected...

I seem to be having a hard time today. All I want to do is make a TextBox hidden of visible based on a bool value databound to the Window its hosted in. What I have just won't compile and I don't...

I have the following XAML: <TextBlock Text="{Binding ElementName=EditListBox, Path=SelectedItems.Count}" Margin="0,0,5,0"/> <TextBlock Text="items selected"> <TextBlock.Style> ...

In WPF, is it possible for a DataTrigger to bind to an attached property? I essentially want to use a converter on an attached property to provide a style when a particular validation rule has bee...