selecteditem

Ok, this has been bugging me for a while now. And I wonder how others handle the following case: <ComboBox ItemsSource="{Binding MyItems}" SelectedItem="{Binding SelectedItem}"/> The DataContext object's code: public ObservableCollection<MyItem> MyItems { get; set; } public MyItem SelectedItem { get; set; } public void RefreshMyItems() { MyItems.Clear(); foreach(var myItem in LoadItems()) MyItems.Add(myItem); } public class MyItem { public int Id { get; set; } public override bool Equals(object obj) { return this.Id == ((MyItem)obj).Id; } } Obviously when the RefreshMyItems() method is called

I have a method: private void DeletePuzzle(object param) { } param is a System.Windows.Controls.SelectedItemCollection , that I got from a WPF ListView 's SelectedItems property. Somehow, I can't seem to cast it from an object to anything useful. I can't create a System.Windows.Controls.SelectedItemCollection because of its protection level, and param won't cast to IList , ICollection or IEnumerable . How can I iterate through param's items? Matt Searles Right, got it sorted. I kept trying to cast it like IList<PuzzleViewModel> collection = (IList<PuzzleViewModel>)param; Which told me it

So someone suggested using a WPF TreeView , and I thought: "Yeah, that seems like the right approach." Now, hours and hours later, I simply can't believe how difficult it has been to use this control. Through a bunch of research, I was able to get the TreeView` control working, but I simply cannot find the "proper" way to get the selected item to the view model. I do not need to set the selected item from code; I just need my view model to know which item the user selected. So far, I have this XAML, which isn't very intuitive on its own. This is all within the UserControl.Resources tag:

Can anyone help with the following - been playing about with this but can't for the life of me get it to work. I've got a view model which contains the following properties; public ObservableCollection<Rule> Rules { get; set; } public Rule SelectedRule { get; set; } In my XAML I've got; <ListBox x:Name="lbRules" ItemsSource="{Binding Path=Rules}" SelectedItem="{Binding Path=SelectedRule, Mode=TwoWay}"> <ListBox.ItemTemplate> <DataTemplate> <StackPanel Orientation="Horizontal"> <TextBlock Text="Name:" /> <TextBox x:Name="ruleName"> <TextBox.Text> <Binding Path="Name" UpdateSourceTrigger=

Ok, I am having more problems with my C# WPF ListView control. Here it is in all its glory: <Window x:Class="ebook.SearchResults" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"Title="ISBNListView" Height="503" Width="1004"> <Grid> <ListView Name="listView1" Margin"22,30,33,28" MouseDoubleClick="getSelectedItem" > <ListView.View> <GridView> <GridView.Columns> <GridViewColumn Header="ISBN" Width="150" DisplayMemberBinding="{Binding ISBN}"/> <GridViewColumn Header="Title" Width="350" DisplayMemberBinding="{Binding Title}"/>

I'm trying to change the background of the selected item in a WPF ListBox. I have attempted to implement a style for it, but for some reason it's not being applied. I still get a blue background. Can anyone see why? <UserControl x:Class="Thumbnails" xmlns:local="clr-namespace:ContentPresenter" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" mc:Ignorable="d" d:DesignHeight="350" d:DesignWidth=