Using C#, can you drag a canvas in WPF?
- by TERACytE
Can you drag a canvas in WPF? How do you set the position of the canvas? Here is what I got so far:
/// xaml
<Window x:Class="TestApp.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Height="350" Width="525"
WindowStyle="None" ResizeMode="NoResize" AllowsTransparency="True"
Background="Transparent" Loaded="MainWindow_Loaded">
<Canvas Name="ParentCanvas" Background="#FF6E798D">
</Canvas>
</Window>
/// code behind
public partial class MainWindow : Window
{
private Boolean isMouseCapture;
public MainWindow()
{
InitializeComponent();
}
void MainWindow_Loaded(object sender, RoutedEventArgs e)
{
this.ParentCanvas.MouseLeftButtonDown += new MouseButtonEventHandler(_MouseLeftButtonDown);
this.ParentCanvas.MouseLeftButtonUp += new MouseButtonEventHandler(_MouseLeftButtonUp);
this.ParentCanvas.MouseMove += new MouseEventHandler(_MouseMove);
}
void _MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
{
this.ParentCanvas.ReleaseMouseCapture();
isMouseCapture = false;
}
void _MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
this.ParentCanvas.CaptureMouse();
isMouseCapture = true;
}
void _MouseMove(object sender, MouseEventArgs e)
{
if (isMouseCapture)
{
this.ParentCanvas.X= e.GetPosition(this).X;
this.ParentCanvas.Y = e.GetPosition(this).Y;
}
}
}
'X' is not a property of Canvas (i.e."this.ParentCanvas.X"). What do I use to set the position?
