I am learning the WPF 4.5 Unleashed book. When I tried to incorporate Mouse Action Event such as MouseEnter or MouseDoubleClick for the Button by typing the code manually, the compiler told me it could not find the reference for the Mouse Action Event. However, when I use the double Tab shortcut, everything works well. What could possibly be the issue? I have bold the trouble code below.
<Window x:Class="WpfApplicationLearning0001.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="513.265" Width="748.469">
<DockPanel>
<Menu DockPanel.Dock="Top">
</Menu>
<StackPanel Name="ButtonBar" Orientation="Horizontal" DockPanel.Dock="Right">
<StackPanel.LayoutTransform>
<RotateTransform Angle="90">
</RotateTransform>
</StackPanel.LayoutTransform>
**<Button Name="Panel1Button" MouseEnter="Panel1Button_MouseEnter">
Toolbox
</Button>**
</StackPanel>
<Grid Background="White" Margin="0,0,2,3">
<Grid.RowDefinitions>
<RowDefinition Height="auto"/>
<RowDefinition/>
<RowDefinition/>
<RowDefinition/>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="auto" />
<ColumnDefinition/>
</Grid.ColumnDefinitions>
<Label Grid.Row="0" Grid.Column="0" Grid.ColumnSpan="2" Background="Black" Foreground="White" HorizontalContentAlignment="Center" Content= "Start Page"/>
<GroupBox Grid.Row="1" Grid.Column="0" Background="White" Foreground="Black" Header="Start" />
<GroupBox Grid.Row="2" Grid.Column="0" Background="White" Foreground="Black" Header="Recent" />
<GroupBox Grid.Row="3" Grid.Column="0" Background="White" Foreground="Black" Header="Option" />
<GroupBox Grid.Row="1" Grid.Column="1" Grid.RowSpan="3" Background="White" Foreground="Black" Header="Get Start">
<ListBox>
<ListBoxItem>Article number1</ListBoxItem>
<ListBoxItem>Article number2</ListBoxItem>
<ListBoxItem>Article number3</ListBoxItem>
<ListBoxItem>Article number4</ListBoxItem>
</ListBox>
</GroupBox>
</Grid>
</DockPanel>
The double click not only puts it in the XAML code, put it also creates the code behind in the .cs file of:
private void Panel1Button_MouseEnter(object sender, MouseEventArgs e)
{
}
Until you add the code behind yourself, if you are doing it manually, then the error is correct. In addition, when manually coding be sure to include (object sender, MouseEventArgs e) in the function call or it may not recognize it as a valid function call to the MouseEvent.
Related
I developed an UWP application that's having a wrong behavior on new version of Windows 10. In my application i have some ContentDialog with some TextBox inside them and when the soft-keyboard is shown it should push upwards the contentdialog but in new build of windows 10 this is not happening, anyone know why?
Here is a sample of my ContentDialog code:
<ContentDialog
x:Class="ManImp.CDEseguiOdM"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="using:ManImp"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d"
MaxHeight="{StaticResource ContentDialogMaxHeight}"
MaxWidth="{StaticResource ContentDialogMaxWidth}"
Margin="0"
Padding="0">
<Grid Background="{ThemeResource ApplicationBackGroudColor}">
<Grid.RowDefinitions>
<RowDefinition Height="Auto"></RowDefinition>
<!--0-->
<RowDefinition Height="Auto"></RowDefinition>
<!--0-->
<RowDefinition Height="Auto"></RowDefinition>
<!--1-->
<RowDefinition Height="Auto"></RowDefinition>
<!--2-->
<RowDefinition Height="Auto"></RowDefinition>
<!--3-->
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*"></ColumnDefinition>
</Grid.ColumnDefinitions>
<StackPanel Orientation="Vertical" x:Name="stckLabelFirma" Grid.Row="0" Grid.Column="0">
<TextBlock x:Name="lblFirma" VerticalAlignment="Center" TextWrapping="Wrap" FontSize="24" Foreground="White" FontWeight="Normal" HorizontalAlignment="Center" Margin="0,0,0,5"></TextBlock>
</StackPanel>
<StackPanel Orientation="Vertical" Grid.Row="1" Grid.Column="0">
<InkToolbar InitialControls="None" VerticalAlignment="Top" HorizontalAlignment="Right" TargetInkCanvas="{x:Bind inkCanvasFirma}" >
<InkToolbarEraserButton />
<InkToolbarBallpointPenButton />
</InkToolbar>
<Grid BorderBrush="Black" BorderThickness="1">
<Image Name="imgFirma" Stretch="Uniform"></Image>
<InkCanvas x:Name="inkCanvasFirma" VerticalAlignment="Stretch" HorizontalAlignment="Stretch"></InkCanvas>
</Grid>
</StackPanel>
<StackPanel Orientation="Vertical" x:Name="stckDatiSupProd" Grid.Row="2" Grid.Column="0">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*"></ColumnDefinition>
<!--0-->
<ColumnDefinition Width="*"></ColumnDefinition>
<!--1-->
<ColumnDefinition Width="*"></ColumnDefinition>
<!--2-->
</Grid.ColumnDefinitions>
<StackPanel Orientation="Vertical" Grid.Column="0" Margin="0,10,5,0">
<TextBlock x:Name="lblCID" VerticalAlignment="Center" TextWrapping="Wrap" FontSize="20" Foreground="#FF034872" FontWeight="Bold" HorizontalAlignment="Left" Margin="0,0,0,0"></TextBlock>
<TextBox x:Name="txtCID" BorderBrush="Red" MaxLength="8" TextChanged="txtCID_TextChanged" VerticalAlignment="Center" Background="White" HorizontalAlignment="Stretch" Margin="0,10,0,0" TextWrapping="Wrap" FontSize="20"></TextBox>
</StackPanel>
<StackPanel Orientation="Vertical" Grid.Column="1" Margin="5,10,5,0">
<TextBlock x:Name="lblAlias" VerticalAlignment="Center" TextWrapping="Wrap" FontSize="20" Foreground="#FF034872" FontWeight="Bold" HorizontalAlignment="Left" Margin="0,0,0,0"></TextBlock>
<TextBox x:Name="txtAlias" BorderBrush="Red" TextChanged="txtAlias_TextChanged" VerticalAlignment="Center" Background="White" HorizontalAlignment="Stretch" Margin="0,10,0,0" TextWrapping="Wrap" FontSize="20"></TextBox>
</StackPanel>
<StackPanel Orientation="Vertical" Grid.Column="2" Margin="5,10,0,0">
<TextBlock x:Name="lblPIN" VerticalAlignment="Center" TextWrapping="Wrap" FontSize="20" Foreground="#FF034872" FontWeight="Bold" HorizontalAlignment="Left" Margin="0,0,0,0"></TextBlock>
<PasswordBox x:Name="txtPIN" BorderBrush="Red" PasswordChanged="txtPIN_PasswordChanged" VerticalAlignment="Center" Background="White" HorizontalAlignment="Stretch" Margin="0,10,0,0" FontSize="20"></PasswordBox>
</StackPanel>
</Grid>
</StackPanel>
<StackPanel Orientation="Vertical" Grid.Row="3" Grid.Column="0" Margin="0,10,0,0">
<TextBlock x:Name="lblErrore" Visibility="Collapsed" VerticalAlignment="Center" TextWrapping="Wrap" FontSize="14" Foreground="Red" FontWeight="Bold" HorizontalAlignment="Left" Margin="0,5,0,0"></TextBlock>
</StackPanel>
<StackPanel Orientation="Vertical" Grid.Row="4" Margin="0,10,0,0" Grid.Column="0">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*"></ColumnDefinition>
<!--0-->
<ColumnDefinition Width="*"></ColumnDefinition>
<!--1-->
</Grid.ColumnDefinitions>
<Button x:Name="btnAnnulla" Grid.Column="0" HorizontalAlignment="Stretch" Margin="0,30,10,0" VerticalAlignment="Top" Click="btnAnnulla_Click"></Button>
<Button x:Name="btnConfFirmaSupProd" Grid.Column="1" HorizontalAlignment="Stretch" Margin="10,30,0,0" VerticalAlignment="Top" Click="btnConfFirmaSupProd_Click"></Button>
<Button x:Name="btnConfFirmaOperatore" Grid.Column="1" HorizontalAlignment="Stretch" Margin="10,30,0,0" VerticalAlignment="Top" Click="btnConfFirmaOperatore_Click"></Button>
</Grid>
</StackPanel>
</Grid>
This should be an issue related to the old SDK that when the app is targeting old versions like 14393.
If you really want to achieve this behavior on all versions of Windows 10. I'd suggest you handle the showing and hiding events manually via InputPane.Showing Event and InputPane.Hiding Event. And then you might need to customize a PopUp control that looks like a ContentDialog. We can't change the position of the ContentDialog, because it is handled by the system. But we could change the position of a PopUp control.
When the on-screen keyboard is shown, the showing event will be fired and you could try to manually move your PopUp control upwards. When the keyboard is hidden, just move the PopUp control back to its original position.
Here is the sample code about how to handle the show and hide event:
protected override void OnNavigatedTo(NavigationEventArgs e)
{
InputPane currentInputPane = InputPane.GetForCurrentView();
// Subscribe to Showing/Hiding events
currentInputPane.Showing += OnShowing;
currentInputPane.Hiding += OnHiding;
}
protected override void OnNavigatedFrom(NavigationEventArgs e)
{
InputPane currentInputPane = InputPane.GetForCurrentView();
// Unsubscribe from Showing/Hiding events
currentInputPane.Showing -= OnShowing;
currentInputPane.Hiding -= OnHiding;
}
void OnShowing(InputPane sender, InputPaneVisibilityEventArgs e)
{
//do something
}
void OnHiding(InputPane sender, InputPaneVisibilityEventArgs e)
{
//do something
}
You could also get information about the touch keyboard here: Respond to the presence of the touch keyboard
I am new to WPF and suddendly my Window is not clickable anymore.
I cannot click one button and I cannot edit a text box.
I am using Visual Studio 2015 (new to it as well).
What could be the reason?
here some code:
<Window x:Class="Mxx.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:local="clr-namespace:Mxx"
mc:Ignorable="d"
Title="MainWindow" Height="350" Width="525">
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="26*"/>
</Grid.RowDefinitions>
<Menu>
<MenuItem Header="Log out" Click="MenuItem_Click1"/>
<MenuItem Header="Option 2">
<MenuItem Header="Load new control" Click="MenuItem_Click2a"/>
<MenuItem Header="Open new window" Click="MenuItem_Click2b"/>
</MenuItem>
</Menu>
<Border x:Name="Stage" Grid.Row="1"/>
<Grid x:Name="LoginLayer" Background="#FFFFFFFF" Grid.RowSpan="2">
<Grid HorizontalAlignment="Center" VerticalAlignment="Center" Background="LightBlue">
<Grid.ColumnDefinitions>
<ColumnDefinition/>
<ColumnDefinition/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition/>
<RowDefinition/>
<RowDefinition/>
<RowDefinition/>
</Grid.RowDefinitions>
<TextBlock Text="Mxx" Grid.ColumnSpan="2" FontWeight="Bold" HorizontalAlignment="Center" Margin="5" FontSize="20"/>
<TextBlock Text="Name" Grid.Row="1" Margin="3"/>
<TextBox x:Name="txtName" Grid.Row="1" Grid.Column="1" Margin="3" MinWidth="100" HorizontalAlignment="Left"/>
<TextBox x:Name="txtName1" Background="Azure" Grid.Row="4" Grid.Column="1" Margin="3" MinWidth="100" HorizontalAlignment="Left"/>
<TextBlock Text="Password" Grid.Row="2" Margin="3"/>
<PasswordBox x:Name="txtPassword" Grid.Column="1" Grid.Row="2" Margin="3" MinWidth="100" HorizontalAlignment="Left"/>
<Button Click="Login_Click" Content="Log in" Grid.Row="3" Grid.Column="1" Margin="3"/>
</Grid>
<TextBlock x:Name="lat1" Text="lat" Grid.Row="4" Margin="3" />
</Grid>
</Grid>
and here my main window
public MainWindow()
{
InitializeComponent();
_geoLocator = new Geolocator();
Utils.getNetworkAdapterId();
Debug.WriteLine("imei: " + Properties.Settings.Default.imei);
Properties.Settings.Default.imei = "imei1";
Properties.Settings.Default.Save(); // Saves settings in application setting
}
my debugger hits the last line
Your problem is with the last declared TextBlock
<TextBlock x:Name="lat1" Text="lat" Grid.Row="4" Margin="3" />
That is outside of the grid that has row and column definitions, and so it is defaulting to taking up all the space in the page as an overlay. You are unable to give focus to the controls beneath it.
You can see this in the XAML editor window. In the code view, click on that element, and in the designer you will see that the textblock is the full size of your window. Because it is declared last in the XAML, it take the uppermost position (z-index) and therefore "hides" the controls behind it.
You have a TextBlock covering the other controls. I think you want to move lat1 into the /Grid tag directly above it.
i have a pop up and i want to close it when i tap anywhere outside the pop up. i searched and everyone advised me to use the property IsLightDismissEnabled; however if i touch outside, it will only remove the pop oup leaving everything inactive with a grey like screen as if it doesnt close the pop up completely
this is my code snippet:
<Popup x:Name="logincontroler" IsOpen="False" Margin="0,190,896,276" IsLightDismissEnabled="True">
<StackPanel Height="300" Width="470" x:Name="popup" FlowDirection="RightToLeft">
<Grid Width="470" Background="White" >
<Grid.RowDefinitions>
<RowDefinition Height="70"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<RichEditBox Grid.Row="1" Height="250" TextWrapping="Wrap" FontSize="20" Name="notesPopupTextBox" FlowDirection="LeftToRight"/>
<StackPanel Grid.Row="0" Orientation="Horizontal" Background="#FFE3E3E5">
<Button Name="CanclePopupButton" Content="Cancel" Width="64" Height="64" Click="CanclePopupButton_Click" />
<Button Name="ClearNotePopupButton" Content="Clear" Width="64" Height="64" Click="ClearNotePopupButton_Click" />
<Button Name="saveNoteButton" Content="Save" Width="64" Height="64" Click="saveNoteButton_Click" />
<TextBlock FontWeight="Medium" FontSize="40" Foreground="#2a2a86" Margin="170 12 0 0">Note</TextBlock>
</StackPanel>
</Grid>
</StackPanel>
</Popup>
this is my code for the events
private void ShowButton_Click(object sender, RoutedEventArgs e)
{
logincontroler.IsOpen = true;
flipView1.IsEnabled = false;
}
private void CanclePopupButton_Click(object sender, RoutedEventArgs e)
{
logincontroler.IsOpen = false;
flipView1.IsEnabled = true;
}
Am I missing anything?
thank you in advance
Are you sure you don't have some other code in the App that you are not showing us?
There should be no Gray box behind the Popup.
I have just tested your code on an empty Windows 8.1 (XAML+C#) App and it works fine.
Try creating and Blank Windows 8.1 App and make you MainPage like this:
MainPage.xaml
<Page
x:Class="App19.MainPage"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="using:App19"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d"
RequestedTheme="Light">
<Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
<Popup x:Name="logincontroler" IsOpen="False" Margin="0,190,896,276" IsLightDismissEnabled="True">
<StackPanel Height="320" Width="470" x:Name="popup" FlowDirection="RightToLeft">
<Grid Width="470" Background="BurlyWood" >
<Grid.RowDefinitions>
<RowDefinition Height="70"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<RichEditBox Grid.Row="1" Height="250" TextWrapping="Wrap" FontSize="20" Name="notesPopupTextBox" FlowDirection="LeftToRight"/>
<StackPanel Grid.Row="0" Orientation="Horizontal" Background="#FFE3E3E5">
<Button Name="CanclePopupButton" Content="Cancel" Width="64" Height="64" />
<Button Name="ClearNotePopupButton" Content="Clear" Width="64" Height="64" />
<Button Name="saveNoteButton" Content="Save" Width="64" Height="64" />
<TextBlock FontWeight="Medium" FontSize="40" Foreground="#2a2a86" Margin="170 12 0 0">Note</TextBlock>
</StackPanel>
</Grid>
</StackPanel>
</Popup>
<Button Content="Show Popup" HorizontalAlignment="Left" Margin="692,260,0,0" VerticalAlignment="Top" Click="ShowButton_Click"/>
</Grid>
</Page>
MainPage.xaml.cs
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;
namespace App19
{
/// <summary>
/// An empty page that can be used on its own or navigated to within a Frame.
/// </summary>
public sealed partial class MainPage : Page
{
public MainPage()
{
this.InitializeComponent();
}
private void ShowButton_Click(object sender, RoutedEventArgs e)
{
logincontroler.IsOpen = true;
}
}
}
This has to work.
And comparing this with your solution should help you find the problem. If not, just edit your question with more information. (more code)
Note: I removed the click events from your popup, they were not needed to exemplify your problem, right?
I am a complete newbie to WPF. I've been working on a personal project for about 2 weeks. It's been coming along, and suddenly hit a roadblock. Everything was working perfect until I shifted some things around.
It's basically a satellite map as the canvas background, so that I can overlay geometry on it. The image is 10000x10000, and has not changed. It's added as a resource and... funny enough, shows up in the Visual Basic xaml designer.
The local:ZoomBorder class zooms/pans the viewbox/canvas. I did not post the code because it has not been touched since it last worked.
Geometry is being added to the canvas correctly.
I moved around some dimensions, as far as the grid goes. Like adding margins and such, but can't get it back to displaying the imagebrush background, no matter what I do.
<Window x:Class="Temp.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="clr-namespace:Temp"
Title="MainWindow" Height="930" Width="1100" PreviewKeyDown="mapBorder_PreviewKeyDown">
<Grid Margin="5">
<Grid.RowDefinitions>
<RowDefinition Height="Auto" />
<RowDefinition Height="Auto" />
<RowDefinition Height="*" />
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto" MinWidth="210" />
<ColumnDefinition Width="Auto" />
</Grid.ColumnDefinitions>
<ScrollViewer Grid.Row="2" Grid.Column="0">
<StackPanel Name="stackPanel" />
</ScrollViewer>
<local:ZoomBorder x:Name="mapBorder" Background="Gray" Margin="0" Grid.Column="1" Grid.Row="2" ClipToBounds="True">
<Viewbox>
<Canvas Name="mapGrid" Height="10000" Width="10000">
<Canvas.Background>
<ImageBrush ImageSource="map.jpg"/>
</Canvas.Background>
</Canvas>
</Viewbox>
</local:ZoomBorder>
<Button Grid.Column="0" Grid.Row="1" HorizontalAlignment="Left" MinWidth="80" Margin="10,0,0,0" Content="Start Refresh" Width="80" Click="buttonStartRefresh" />
<Button Grid.Column="0" Grid.Row="1" HorizontalAlignment="Left" MinWidth="80" Margin="110,0,0,0" Content="Stop Refresh" Width="80" Click="buttonStopRefresh" />
<CheckBox Name="Advanced" Grid.Column="1" Grid.Row="1" Margin="10,0,0,0">
<Label Margin="0,-5,0,0">Advanced</Label>
</CheckBox>
</Grid>
</Window>
This is my code to open childwindow:
ImageLocation location = new ImageLocation();
location.WindowStartupLocation = Xceed.Wpf.Toolkit.WindowStartupLocation.Center;
location.Show();
But the childwindow doesn't show at all.
This is my xaml for childwindow:
<xctk:ChildWindow x:Class="CXLocalSearch.Dialogs.ImageLocation"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Caption="Image Path"
xmlns:xctk="http://schemas.xceed.com/wpf/xaml/toolkit"
Height="64" Width="400">
<Grid x:Name="LayoutRoot">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto" MinWidth="63.95"/>
<ColumnDefinition/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="Auto" />
<RowDefinition/>
</Grid.RowDefinitions>
<TextBlock Margin="2" TextWrapping="Wrap" Text="Image Path" VerticalAlignment="Center" HorizontalAlignment="Left"/>
<StackPanel Grid.Column="1" HorizontalAlignment="Left" Margin="3,2,0,2" Orientation="Horizontal" >
<TextBox x:Name="txtPath" Margin="0,2" TextWrapping="Wrap" VerticalAlignment="Center" Width="250"/>
<Button x:Name="btnSave" Content="Save" Click="btnSave_Click" Width="60" Margin="3,0,0,0"/>
</StackPanel>
</Grid>
</xctk:ChildWindow>
Could anybody please clarify what the issue is?
From the looks of it, you've separated your ChildWindow into a separate control. That's fine, but it needs to be hosted inside a primary window in order to ever become visible. Start with the simplest thing possible:
<Window>
<Grid>
<Button Click="...">Click to Show</Button>
<xctk:ChildWindow x:Name="childWindow">
<TextBlock>Hello!</TextBlock>
</xctk:ChildWindow>
</Grid>
</Window>
I think you'll find this works fine (assumes event hookup), so take it from there.