CODEWITHSUNDEEP
c#.netwpf
Steven Law
Steven Law

Reputation: 31

My menu showing up at the top left of the screen

I built a menu bar using the menu control in WPF and it had been working but at some point the menu started showing up on the top left of my first monitor regardless of where in the screen I had the window. Even if I move the main window to the second monitor the menu still shows up in the first monitor.

Menu Image

Here is the code for the menu control:

<Menu>
    <MenuItem Header="_File">
        <MenuItem Header="_New" Command="New" InputGestureText="Ctrl+N"/>
        <MenuItem Header="_Open" Command="Open" InputGestureText="Ctrl+O" />
        <MenuItem Header="_Close" Command="Close" InputGestureText="Ctrl+W" />
        <Separator/>
        <MenuItem Header="_Save" Command="Save" InputGestureText="Ctrl+S" />
        <MenuItem Header="Save _As" Command="SaveAs" InputGestureText="Ctrl+Shift+S" />
        <Separator/>
        <MenuItem Header="E_xit" Command="{StaticResource CommandBinding_Exit}" InputGestureText="Ctrl+Q" />
    </MenuItem>
    <MenuItem Header="_Edit">
        <MenuItem Header="_Add" Command="{StaticResource CommandBinding_Add}" InputGestureText="" />
        <MenuItem Header="_Edit" Command="{StaticResource CommandBinding_Edit}" InputGestureText="" />
        <MenuItem Header="_Delete" Command="Delete" InputGestureText="" />
        <Separator/>
        <MenuItem Header="Cut" Command="Cut" InputGestureText="Ctrl+X" />
        <MenuItem Header="Copy" Command="Copy" InputGestureText="Ctrl+C" />
        <MenuItem Header="Paste" Command="Paste" InputGestureText="Ctrl+V" />
    </MenuItem>
    <MenuItem Header="_View">
        <MenuItem x:Name="miShowStatusBar" Header="Show Status Bar" IsCheckable="True" IsChecked="True" Click="miShowStatusBar_Click"/>
        <MenuItem x:Name="miShowFullPath" Header="Show Full Path" IsCheckable="True" IsChecked="True" Click="miShowFullPath_Click"/>
    </MenuItem>
    <MenuItem Header="_Help">
        <MenuItem Header="_About"/>
    </MenuItem>
</Menu>

The menu is not referenced any where in the code behind so I can't figure out what might be causing this odd menu placement.

Upvotes: 0

Views: 930

Answers (3)

Tuan Nam Truong
Tuan Nam Truong

Reputation: 11

I think the source of the OP's problem is in the search box under the MenuBar. It may come from the Margin or Width settings of the search box.

I faced the same problem and found the sources. Here is the boilerplate code to reproduce the same error. The problem is a combination of 5 parts, as shown in the following XAML. Remove any one of them will solve the OP's issue.

You need to bind the XAML View to a ViewModel with public property Films. If the Films collection has any element in it, it will also cause the issue (Part 5).

    <Grid x:Name="MainContent">
    <Grid.RowDefinitions>
        <RowDefinition Height="20"/>
        <RowDefinition />
    </Grid.RowDefinitions>
    <Grid >
        <Menu>
            <MenuItem Header="Film">
                <MenuItem Header="New"/>
            </MenuItem>
        </Menu>
    </Grid>
    <Grid Grid.Row="1">
        <Grid>
            <!--Part 1: Remove HorizontalScrollBarVisibility="Auto"-->
            <ScrollViewer HorizontalScrollBarVisibility="Auto">
                <!--Part 2: Remove ItemsSource="{Binding Films}"-->
                <ItemsControl ItemsSource="{Binding Films}">
                    <ItemsControl.ItemContainerStyle>
                        <Style TargetType="ContentPresenter">
                            <!--Part 3: Remove the setter tag-->
                            <Setter Property="Margin" Value="2" />
                        </Style>
                    </ItemsControl.ItemContainerStyle>
                    <ItemsControl.ItemTemplate>
                        <DataTemplate>
                            <Button>
                                <Button.Template>
                                    <ControlTemplate TargetType="Button">
                                        <!--Part 4: Width="{Binding RelativeSource={RelativeSource AncestorType={x:Type ItemsControl}}, Path=ActualWidth}-->
                                        <ContentPresenter Width="{Binding RelativeSource={RelativeSource AncestorType={x:Type ItemsControl}}, Path=ActualWidth}"/>
                                    </ControlTemplate>
                                </Button.Template>
                            </Button>
                        </DataTemplate>
                    </ItemsControl.ItemTemplate>
                </ItemsControl>
            </ScrollViewer>
        </Grid>
    </Grid>
</Grid>

Upvotes: 1

ˈvɔlə
ˈvɔlə

Reputation: 10242

I bet that this has something to do with the Xaml-Designer of your Visual Studio instance. I encounter similar strange things because of leaving the Xaml-Designer open while debugging.

Try to kill the XDesProc.exe process and check if the problem still occurs.

Upvotes: 0

B.K.
B.K.

Reputation: 10152

This has nothing to do with WPF. It's a possible corruption of the Handedness setting or driver issues if you have a touch screen monitor, tablet PC or have a tablet attached with a bad driver (such as a Wacom drawing tablet).

Type this into the Run dialog: shell:::{80F3F1D5-FECA-45F3-BC32-752C152E456E}. Once Tablet PC Settings come up, go to the Other tab and in the Handedness section, check the Left Handed option.

Upvotes: 0

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