VS 2013 Wpf视觉错误？

Question

After reading some stuff on the internet I decided to try switch from C#+Windows forms to C#+WPF. But I ran into some weird stuff (bug? invalid installation?): in editor everything looks fine and nice, but when I build it - it looks noticeably different from what I see in editor (for example: even though I set borders thickness to 0 - they are still present and ignore this setting overall).

Any way to fix it?

Here is code I'm using (I'm not using anything specific, just some menus and buttons).

<Window x:Class="WpfApplication1.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" ResizeMode="CanResizeWithGrip">
<Window.Effect>
    <DropShadowEffect RenderingBias="Quality"/>
</Window.Effect>
    <DockPanel>
        <Menu DockPanel.Dock="Top">
            <MenuItem Header="_File">
                <MenuItem Header="_Generate new"/>
                <MenuItem Header="_Export"/>
                <MenuItem Header="_Import"/>
                <Separator/>
                <MenuItem Header="E_xit"/>
            </MenuItem>
            <MenuItem Header="_Test"/>
        </Menu>
        <Grid>    
            <Button Content="Button" HorizontalAlignment="Left" Margin="432,289,0,0" VerticalAlignment="Top" Width="75"/>
            <Button Content="Button" HorizontalAlignment="Left" Margin="352,289,0,0" VerticalAlignment="Top" Width="75"/>
            <GroupBox Header="GroupBox" HorizontalAlignment="Left" Margin="10,35,0,0" VerticalAlignment="Top" Height="110" Width="123"/>

        </Grid>
    </DockPanel>
</Window>

Here is capture to help better understand question.

Answer 1

You probably built your window by using what you learned with Forms: you dragged and dropped controls. This will result in suboptimal results in WPF. WPF has a system of positioning elements that way more advanced than pixel positioning.

You should have a look into tutorials about WPF layout. WPF is a way different beast than WinForms and if you approach it as "WinForms with a funny look" it will not work well.

Look into WPF layout, container controls and relative positioning. If you see any absolute values in your XAML, it's probably not perfect.

Example:

Margin="432,289,0,0"

That's bad. It's absolute positioning. It does not care how large the window is or how large the borders are. The control is placed 432/289 from the upper left. That's what you see. The distance from the upper left is kept, but as your window is influenced by your windows style, it looks not like your want it to look.