Im having problem sharing a windows viewmodel to the windows hosted frame.
Therefore I made a static viewmodel for the mainwindow, so any class can edit it´s properties:
class GUICollection
{
public static MainWindowViewModel MainWindowViewModel = new MainWindowViewModel();
}
This is then set into the MainWindows datacontext:
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
DataContext = GUICollection.MainWindowViewModel;
}
}
This is the windows xaml:
<Window x:Class="MVVMFrameQuestiontoStackOverflow.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="350" Width="525">
<Grid>
<Frame NavigationUIVisibility="Hidden" Source="{Binding MainWindow.FrameURI}"/>
</Grid>
It´s view model:
class MainWindowViewModel
{
private string startUpURI;
private object startUpDataContext;
private MainWindowModel mainWindow;
public MainWindowViewModel()
{
startUpURI = "pack://application:,,,/MVVMFrameQuestiontoStackOverflow;component/Page1.xaml";
mainWindow = new MainWindowModel(startUpURI);
}
/// <summary>
/// Gets the MainWindow instance
/// </summary>
public MainWindowModel MainWindow
{
get
{
return mainWindow;
}
}
}
So from here I can choose the frame Source, which means I can choose which view to show. However Im wondering if I could avoid the static initiliazing and still being able to access the mainwindows FrameURI property (Here is my current logic):
public Page1()
{
InitializeComponent();
DataContext = new MainMenuViewModel();
//Statement below causes an exception, but the whole issue is about accesing this without using a static instance.
GUICollection.MainWindowViewModel.MainWindow.FrameURI = "Change MainWindows FrameURI property!";
}
Is the same behaviour able to produce without using a static class? If so an example would be warmly appreciated.
Thanks on advance!
