mvvm-light

I'm just trying my hand at WP7 dev using the MVVM Light framework. I'm trying to fire a button command inside an ItemsControl, essentialy it's a list of cars and I'd like each element to have an edit button. The Relevant piece of the View: <ItemsControl ItemsSource="{Binding MyCars}" > <ItemsControl.ItemTemplate> <DataTemplate> <Grid x:Name="CarViewGrid"> <Grid.ColumnDefinitions> <ColumnDefinition Width="Auto" MinWidth="100" /> <ColumnDefinition Width="Auto" MinWidth="302"/> </Grid.ColumnDefinitions> <Grid.RowDefinitions> <RowDefinition Height="Auto" MinHeight="40" /> <RowDefinition Height=

I recently upgraded from MVVMLight 3 to 4, and noticed that my Commands broke. It turns out that the use of weak references in the new RelayCommand (implemented in version 3.5) were causing a code construct that I am using to fail. I know that there is some argument for weak refs relating to memory leak, I just don't understand it. This fails: private void InitCommand() { Command = new SwitchMainGridCommand<SwitchMainGridToolViewModel>(this).Command; } By fails, I mean that when I go to use the Command property that I had initialized and bound to, its backing methods have been garbage

I'd like to dynamically generate some controls in my silverlight application. To be more clear, here's a simplified definition of my class: public class TestClass { [Display(Name="First Name")] public string FirstName { get; set; } [Display(Name = "Last Name")] public string LastName { get; set; } public List<CustomProperty> CustomProperties { get; set; } } Each "CustomProperty" will finally be a TextBox, CheckBox or ComboBox: public class CustomProperty { public CustomDataType DataType { get; set; } //enum:integer, string, datetime, etc public object Value { get; set; } public string

I build a project with mvvmlight. Using Messenger send message between VMs or VM and View. Now, I wonder that when and where to unregister messenger. Could u help me? Edited: This is my scene: There are a MainWindow and a ChildWindow, the ChildWindow (include a ContentControl consist of one of two different UserControl), change the ContenControl via a SwitchButton in ChildWindow. Every window or UserControl corresponding to a ViewModel. MainViewModel sends a message to MainWindow to open the ChildWindow ; MainWindow opens the ChildWindow (firstly use UserControlView1 , don't use

I am trying to get the value/ID of the clicked row. If the row is selected, this works fine. But if I just try to click the button inside, the selected customer is null. How do I do Command Parameters here. I tried this see the answers to the following questions: ListView and Buttons inside ListView WPF - Listview with button Here is the code: <Grid> <ListView ItemsSource="{Binding Path=Customers}" SelectedItem="{Binding Path=SelectedCustomer}" Width="Auto"> <ListView.View> <GridView> <GridViewColumn Header="First Name"> <GridViewColumn.CellTemplate> <DataTemplate> <StackPanel Margin="6,2,6,2"

I'm searching for the appropiate way to handle the back button pressed event on Windows Phone 8.1 WinRT using the NavigationService available on MVVM light 5. So far I think the best place to do it is inside the ViewModelLocator by registering the GoBack method of the NavigationService while creating it following the approach outlined in NavigationService in MVVM Light V5 This is an effective approach. However, I can't handle validation before navigating back so I was wondering if there is a more suitable way to handle this event. public class ViewModelLocator { public ViewModelLocator() {