Question

I am trying to use my viewmodel as my window’s datacontext but am getting the error:

ViewModel is not supported in a Windows Presentation Foundation (WPF) project.

Clearly, I am not understanding something about the syntax and databinding my window to my view model, but I am not sure what it is that I don’t know.

Any advice on what I should be reading?

<Window x:Class="SunnyBeam.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="SunnyBeam" Height="488.358" Width="1014.552">
    <Window.DataContext>
        <ViewModel/>
    </Window.DataContext>
    <Grid>

    </Grid>
</Window>

Answer 1

Usually I set DataContext through codebehind like that:

public partial class Flor1 : Window
{
    public Flor1()
    {
        var dc = new MyViewModel();
        dc.LoadData();
        DataContext = dc;
        InitializeComponent();
    }
}

In place of MyViewModel may be anything you want to bind to.