how to move a button in WPF

XAML code is below

<Window x:Class="DenemeWpfApplication1.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>
        <DockPanel Width="Auto"
                   VerticalAlignment="Stretch"
                   Height="Auto"
                   HorizontalAlignment="Stretch"
                   Grid.ColumnSpan="1"
                   Grid.Column="0"
                   Grid.Row="0"
                   Margin="0,0,0,0"
                   Grid.RowSpan="1">

            <StackPanel>
                <StackPanel.Background>
                    <LinearGradientBrush>
                        <GradientStop Color="White" Offset="0" />
                        <GradientStop Color="DarkKhaki" Offset=".3" />
                        <GradientStop Color="DarkKhaki" Offset=".7" />
                        <GradientStop Color="White" Offset="1" />
                    </LinearGradientBrush>
                </StackPanel.Background>
                <StackPanel Margin="10">
                    <Button Name="simpleButton"
                            Click="simpleButtonClick"
                            KeyDown="simpleButton_KeyDown">Simple</Button>
                    <Button Name="cubeButton"
                            Click="cubeButtonClick">Cube</Button>
                </StackPanel>
            </StackPanel>
            <Viewport3D Name="mainViewport"
                        ClipToBounds="True">
                <Viewport3D.Camera>
                    <PerspectiveCamera FarPlaneDistance="100"
                                       LookDirection="-11,-10,-9"
                                       UpDirection="0,1,0"
                                       NearPlaneDistance="1"
                                       Position="11,10,9"
                                       FieldOfView="70" />
                </Viewport3D.Camera>
                <ModelVisual3D>
                    <ModelVisual3D.Content>
                        <DirectionalLight Color="White" Direction="-2,-3,-1" />
                    </ModelVisual3D.Content>
                </ModelVisual3D>
            </Viewport3D>
        </DockPanel>
    </Grid>
</Window>

this is inide XAML.cs

private void simpleButton_KeyDown(object sender, KeyEventArgs e)
{
    if (e.Key == Key.P) {
        /开发者_开发百科/something to move the simpleButton
    }
}

I want to move simpleButton when P is pressed from keyboard, but I can't seem to find any method or way to do that.

if animation is not required just do

if (e.Key == Key.P)
{
   cubeButton.Margin = new Thickness(60, 50, 50, 60);
}

left,top,right,bottom should be numbers

and you have added keydown event to button so button must be focused in order to receive the keydown event

also look at TranslateTransform in WPF

to move the button within the grid you have to handle the keydown event of the MainWindow, see following example:

       private void Grid_KeyDown(object sender, KeyEventArgs e)
    {
        if (e.Key == Key.P)
        {
            button1.Margin = new Thickness(2, 2, 2, 2);
        }
    }

Also if you have not explained how the focus on the active form KeyDown event will not be recalled.

Bye

You can move it many ways. You could put it on a Canvas control and change its Canvas.Left or Canvas.Top. You could put it inside a Grid and change its Grid.Row or Grid.Column. Probably the most flexible way is to apply a TranslateTransform to it, which will also move it the amount you specify.