I want to use a dataTemplate to show a video source from four different cameras. My datatemplate is something like this:
<DataTemplate x:Key="MultiViewTemplate">
<Grid x:Name="MultiViewGrid" ShowGridLines="True" >
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*" />
<ColumnDefinition Width="*" />
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="*" />
<RowDefinition Height="*" />
</Grid.RowDefinitions>
<Grid x:Name="GridVideo1" Grid.Column="0" Grid.Row="0" VerticalAlignment="Stretch" HorizontalAlignment="Stretch">
<Image x:Name="imageMultiVideoStreaming1" Margin="1" Source="/app;component/Images/No_image_available.png" />
</Grid>
<Grid x:Name="GridVideo2" Grid.Column="1" Grid.Row="0" VerticalAlignment="Stretch" HorizontalAlignment="Stretch">
<Image x:Name="imageMultiVideoStreaming2" Margin="1" Source="/app;component/Images/No_image_available.png" />
</Grid>
<Grid x:Name="GridVideo3" Grid.Column="0" Grid.Row="1" VerticalAlignment="Stretch" HorizontalAlignment="Stretch">
<Image x:Name="imageMultiVideoStreaming3" Margin="1" Source="/app;component/Images/No_image_available.png" />
</Grid>
<Grid x:Name="GridVideo4" Grid.Column="1" Grid.Row="1" VerticalAlignment="Stretch" HorizontalAlignment="Stretch">
<Image x:Name="imageMultiVideoStreaming4" Margin="1" Source="/app;component/Images/No_image_available.png" />
</Grid>
</Grid>
</DataTemplate>
...
<Grid x:name"MainGrid" >
<ContentControl x:Name="CameraContainer" Content="{Binding}" ContentTemplate=Value="{StaticResource MultiViewTemplate}" VerticalAlignment="Stretch" HorizontalAlignment="Stretch" />
</Grid>
At the beginning, when I run the application, every grid should show the image No_image_avaiable.png. It works correcty. After that, I try to connect with the cameras and each video source should be shown in GridVideo1, GridVideo2...
If I do this in code-behind I can see the video from camera 1...
MainGrid.Children.Add(VideoStreamingGrid1)
but I would like to do something like this:
...GridVideo1.Children.Add(VideoStreamingGrid1)
...GridVideo2.Children.Add(VideoStreamingGrid2)
...GridVideo3.Children.Add(VideoStreamingGrid3)
...GridVideo4.Children.Add(VideoStreamingGrid4)
How can I do that?
Thanks.
Related
I have a page with a simple grid (2x2). In one grid on the bottom left corner is another Grid and inside this grid is a ListView bound to a collection. Entries can be added to the collection so the ListView grows in height (height of ListView is set to auto, so that all space available is used).
What I want is, if all available space (from the screen height) is used, scrollbars for the ListView should appear and should be usable. Funny (unfunny) thing is: scrollbars do appear but I cannot use them, I cannot scroll the ListView with the vertical scrollbar that appears when I hover the ListView.
It works, when I set the height of the ListView to a fixed value, but I don't want it that way, because then it doesn't use all the available space on the screen.
This is the XAML of the page (I removed some parts for demonstration purposes) :
<Page
x:Class="Qooli.TimeTracker.MainPage"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="using:Qooli.TimeTracker"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d">
<Page.Resources>
...
</Page.Resources>
<Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
<Grid.RowDefinitions>
<RowDefinition Height="Auto"></RowDefinition>
<RowDefinition Height="Auto"></RowDefinition>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"></ColumnDefinition>
<ColumnDefinition Width="Auto"></ColumnDefinition>
</Grid.ColumnDefinitions>
<StackPanel Name="spAddEntry" Grid.Row="0" Grid.Column="0" HorizontalAlignment="Left" VerticalAlignment="Top" Margin="30">
<TextBlock Text="Add new entry:" Name="lblAddNewEntry" />
...
</StackPanel>
<StackPanel Grid.Row="0" Grid.Column="1" HorizontalAlignment="Left" VerticalAlignment="Top" Margin="30">
<TextBlock Text="Allocated time:" Name="lblAllocatedTime" />
...
</StackPanel>
<Grid Grid.Row="1" Grid.Column="0" Grid.ColumnSpan="1" Margin="30">
<Grid.RowDefinitions>
<RowDefinition Height="Auto"></RowDefinition>
<RowDefinition Height="Auto"></RowDefinition>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"></ColumnDefinition>
</Grid.ColumnDefinitions>
<TextBlock Text="Daily overview:" Name="lblDailyOverview" Grid.Row="0" Grid.Column="0" />
<ListView Name="lvTimeEntries" Grid.Row="1" Grid.Column="0" HorizontalAlignment="Left"
Height="Auto"
MinHeight="100"
VerticalAlignment="Top"
MinWidth="300"
SelectionMode="Single"
ItemsSource="{x:Bind ViewModel.TimeEntriesAdvancedCollectionView, Mode=OneWay}"
ScrollViewer.VerticalScrollBarVisibility="Visible"
ScrollViewer.IsVerticalRailEnabled="True"
ScrollViewer.VerticalScrollMode="Enabled">
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<StackPanel></StackPanel>
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
<ItemsControl.ItemTemplate>
<DataTemplate x:DataType="local:TimeEntry">
<Grid Background="{Binding Type, Converter={StaticResource TimeEntryTypeColorConverter}}" Padding="5">
<Grid.RowDefinitions>
<RowDefinition Height="200"></RowDefinition>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"></ColumnDefinition>
<ColumnDefinition Width="Auto"></ColumnDefinition>
<ColumnDefinition Width="Auto"></ColumnDefinition>
<ColumnDefinition Width="*"></ColumnDefinition>
</Grid.ColumnDefinitions>
<TextBlock Text="{x:Bind Time, Mode=OneWay}" Style="{StaticResource TitleTextBlockStyle}"
MinWidth="60"
MaxWidth="60"
Grid.Row="0" Grid.Column="0">
</TextBlock>
<TextBlock Text="{x:Bind Title, Mode=OneWay}" Style="{StaticResource BodyTextBlockStyle}" Margin="5,0,0,0"
MinWidth="100"
MaxWidth="100"
Grid.Row="0" Grid.Column="1">
</TextBlock>
<Button Name="btnEditTimeEntry" Grid.Row="0" Grid.Column="2" Margin="5,5,5,5">
<SymbolIcon x:Name="edit" Symbol="Edit"/>
</Button>
<Button Name="btnDeleteTimeEntry" Grid.Row="0" Grid.Column="3" Margin="5,5,5,5">
<SymbolIcon x:Name="delete" Symbol="Delete"/>
</Button>
</Grid>
</DataTemplate>
</ItemsControl.ItemTemplate>
</ListView>
</Grid>
<StackPanel Grid.Row="1" Grid.Column="1" HorizontalAlignment="Left" VerticalAlignment="Top" Margin="30">
<TextBlock Style="{StaticResource summaryTextStyle}" Text="Start time:" Name="lblDayStartTime" />
...
</StackPanel>
</Grid>
</Page>
Can someone spot why it is behaving this way?
You need to set the height of the second row to "*" for both grids.
I'm using Visual Studio 2013 and I wrote some code for Windows Phone 8.1 Apps in C#. Now I've got a little problem with the layout in XAML with grids.
Elements in grids should be ordered/layered in the order in the code, but this didn't work for me. I've got two grids in a grid and the comboboxlist of the first grid is overlapped by the other grid/textblock. I tried to rearrange the grid in XAML, but that also did not solved the problem.
overlapping image from the app
In this image there should be 2 more items in the open combobox list, but those are overlapped by the grid below it.
Here is the code snippet:
<Grid Margin="0, 50, 0, 0">
<Grid.RowDefinitions>
<RowDefinition Height="115"/>
<RowDefinition Height="80"/>
<RowDefinition Height="80"/>
<RowDefinition Height="115"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<!--Third Row-->
<Grid Grid.Row="2">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="2*"/>
<ColumnDefinition Width="2*"/>
</Grid.ColumnDefinitions>
<TextBlock Grid.Column="0"
Style="{StaticResource StandardAppHeaderTextBlock}"
Text="Woche:"/>
<ComboBox Name="WochenComboBox"
Grid.Column="0"
Style="{StaticResource StandardAppComboBox}"/>
<TextBlock Grid.Column="1"
Style="{StaticResource StandardAppHeaderTextBlock}"
Text="Ort:"/>
<TextBox Name="OrtTextBox"
Grid.Column="1"
Style="{StaticResource StandardAppTextBox}"/>
</Grid>
<!--Second Row-->
<Grid Grid.Row="1">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="2*"/>
<ColumnDefinition Width="2*"/>
</Grid.ColumnDefinitions>
<TextBlock Grid.Column="0"
Style="{StaticResource StandardAppHeaderTextBlock}"
Text="Stunde:"/>
<ComboBox Name="StundenZeitenComboBox"
Grid.Column="0"
Style="{StaticResource StandardAppComboBox}"
ItemsSource="{Binding Einstellung, Converter={StaticResource EinstellungsStundenToComboBoxListConverter}}"
DisplayMemberPath="Value"
SelectionChanged="StundenZeitenComboBox_SelectionChanged"/>
<TextBlock Grid.Column="1"
Style="{StaticResource StandardAppHeaderTextBlock}"
Text="Veranstaltungsart:"/>
<ComboBox Name="VeranstaltungsartComboBox"
Grid.Column="1"
Style="{StaticResource StandardAppComboBox}"/>
</Grid>
</Grid>
What should I use/do to remove this overlpapping.
Use stack panels. Items inside a stack panel will not overlap.
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="115" />
<RowDefinition Height="80" />
<RowDefinition Height="80" />
<RowDefinition Height="115" />
<RowDefinition Height="*" />
</Grid.RowDefinitions>
<!--Third Row-->
<Grid Grid.Row="2">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="2*" />
<ColumnDefinition Width="2*" />
</Grid.ColumnDefinitions>
<StackPanel Grid.Column="0">
<TextBlock Text="Woche:" />
<ComboBox Name="WochenComboBox" Grid.Column="0" />
</StackPanel>
<StackPanel Grid.Column="1">
<TextBlock Text="Ort:" />
<TextBox Name="OrtTextBox" Grid.Column="1" />
</StackPanel>
</Grid>
<!--Second Row-->
<Grid Grid.Row="1">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="2*" />
<ColumnDefinition Width="2*" />
</Grid.ColumnDefinitions>
<StackPanel Grid.Column="0">
<TextBlock Text="Stunde:" />
<ComboBox Name="StundenZeitenComboBox" Grid.Column="0" DisplayMemberPath="Value" />
</StackPanel>
<StackPanel Grid.Column="1">
<TextBlock Text="Veranstaltungsart:" />
<ComboBox Name="VeranstaltungsartComboBox" Grid.Column="1" />
</StackPanel>
</Grid>
</Grid>
I have the following Window
Now if I try to pull down the Gridsplitter I can only as far as the blue Grid fits in the visible Window. But when sliding down the splitter I want a scrollbar to appear and be able to pull it down to the botton until the blue Grid is not visible any more.
<Window.Content>
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="25"/>
<RowDefinition />
<RowDefinition Height="25" />
</Grid.RowDefinitions>
<Menu Name="MainMenu" Grid.Row="0">
</Menu>
<Grid Grid.Row="1">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="200" />
<ColumnDefinition />
</Grid.ColumnDefinitions>
<DockPanel x:Name="Green" Grid.Column="0" Width="Auto" Height="Auto">
<views:MyView></views:MyView>
</DockPanel>
<GridSplitter Grid.Column="0" Width="6"></GridSplitter>
<Grid Grid.Column="1" >
<ScrollViewer VerticalScrollBarVisibility="Auto">
<Grid VerticalAlignment="Stretch">
<Grid.RowDefinitions>
<RowDefinition Height="*" />
<RowDefinition Height="7" />
<RowDefinition Height="*" />
</Grid.RowDefinitions>
<Grid Grid.Row="0">
<views:ListView x:Name="Yellow" ></views:ListView>
</Grid>
<GridSplitter Grid.Row="1" Height="7" HorizontalAlignment="Stretch" />
<Grid Grid.Row="2" >
<ContentControl Content="{Binding LoadedControl}" x:Name="Blue" />
</Grid>
</Grid>
</ScrollViewer>
</Grid>
</Grid>
<StatusBar x:Name="StatusBar" Grid.Row="2">
</StatusBar>
</Grid>
</Window.Content>
What do I have to change here?
Move your ScrollViewer further down so it wraps the blue ContentControl in row 2, and ensure the ContentControl has a Height or MinHeight set.
ScrollViewers allow their child to take up as much space as they want, and only shows scrollbars if the child object gets larger than the ScrollViewer size.
Also as a side note, you can remove some of those extra Grid's in your layout to make it easier to read. Here's an example with a bunch of them removed, and the first one being replaced with a DockPanel :)
<DockPanel>
<Menu Name="MainMenu" DockPanel.Dock="Top" Height="25" />
<StatusBar x:Name="StatusBar" DockPanel.Dock="Bottom" Height="25"/>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="200" />
<ColumnDefinition Width="6" />
<ColumnDefinition />
</Grid.ColumnDefinitions>
<views:MyView x:Name="Green" Grid.Column="0" />
<GridSplitter Grid.Column="1" Width="6" />
<Grid Grid.Column="2" >
<Grid.RowDefinitions>
<RowDefinition Height="*" />
<RowDefinition Height="7" />
<RowDefinition Height="*" />
</Grid.RowDefinitions>
<views:ListView x:Name="Yellow" Grid.Row="0" />
<GridSplitter Grid.Row="1" Height="7" HorizontalAlignment="Stretch" />
<ScrollViewer Grid.Row="2" VerticalScrollBarVisibility="Auto">
<ContentControl x:Name="Blue" MinHeight="400"/>
</ScrollViewer>
</Grid>
</Grid>
</DockPanel>
Hope you find a better solution XD as mine use a code behind
I used the DragDelta event of the control GridSplitter and enlarge the height of the grid so the ScrollBar can be activated
The xaml Code:
<Grid Grid.Row="1">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="200" />
<ColumnDefinition />
</Grid.ColumnDefinitions>
<DockPanel x:Name="Green" Grid.Column="0" Width="Auto" Height="Auto" Background="#FF0CFA8F" >
<local:BusyUserControl Width="200" Height="200"/>
</DockPanel>
<GridSplitter ResizeDirection="Rows" Grid.Column="0" Width="6"></GridSplitter>
<ScrollViewer x:Name="MainScrollViewer" VerticalScrollBarVisibility="Auto" Grid.Column="1" >
<Grid x:Name="MainGrid">
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="7" />
<RowDefinition Height="Auto"/>
</Grid.RowDefinitions>
<Grid >
<views:ListView x:Name="Yellow" ></views:ListView>
</Grid>
<GridSplitter Grid.Row="1" Height="7" ResizeBehavior="PreviousAndNext" HorizontalAlignment="Stretch" DragDelta="GridSplitter_DragDelta" />
<Grid Grid.Row="2">
<ContentControl Content="{Binding LoadedControl}" x:Name="Blue" />
</Grid>
</Grid>
</ScrollViewer>
</Grid>
The code Behind:
private void GridSplitter_DragDelta(object sender, System.Windows.Controls.Primitives.DragDeltaEventArgs e)
{
if (e.VerticalChange > 1500 || e.VerticalChange > -15000) return;
if (e.VerticalChange > 0 || Visibility.Visible.Equals(MainScrollViewer.ComputedVerticalScrollBarVisibility))
{
this.MainGrid.Height = this.MainGrid.ActualHeight + e.VerticalChange;
}
e.Handled = true;
}
Note:
When the scrollbar is no more visible I stop shrinking the grid (keep the grid stretshed) that’s the meaning of the condition
Visibility.Visible.Equals(MainScrollViewer.ComputedVerticalScrollBarVisibility)
Hope this could help you and thx for the question :)
if you want to display a vertical scroll bar for each part in the splitted grid try the following code :
<Grid Grid.Row="1">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="200" />
<ColumnDefinition />
</Grid.ColumnDefinitions>
<DockPanel x:Name="Green" Grid.Column="0" Width="Auto" Height="Auto" Background="#FF0CFA8F" >
<local:BusyUserControl Width="200" Height="200"/>
</DockPanel>
<GridSplitter Grid.Column="0" Width="6"></GridSplitter>
<Grid Grid.Column="1" >
<Grid VerticalAlignment="Stretch">
<Grid.RowDefinitions>
<RowDefinition Height="*" />
<RowDefinition Height="7" />
<RowDefinition Height="*" />
</Grid.RowDefinitions>
<ScrollViewer VerticalScrollBarVisibility="Auto" Grid.Row="0" >
<Grid >
<views:ListView x:Name="Yellow" ></views:ListView>
</Grid>
</ScrollViewer>
<GridSplitter Grid.Row="1" Height="7" HorizontalAlignment="Stretch" />
<ScrollViewer VerticalScrollBarVisibility="Auto" Grid.Row="2" >
<Grid Grid.Row="2" >
<ContentControl Content="{Binding LoadedControl}" x:Name="Blue" />
</Grid>
</ScrollViewer>
</Grid>
</Grid>
</Grid>
otherwise clarify your need
I have ItemDetailPage.xaml with FlipView, inside of DataTemplate i have Grid with come columns. One of columns contains StackPanel with some controls.
Example:
<FlipView.ItemTemplate>
<DataTemplate>
<UserControl Loaded="StartLayoutUpdates" Unloaded="StopLayoutUpdates">
<ScrollViewer x:Name="scrollViewer" Style="{StaticResource HorizontalScrollViewerStyle}" Grid.Row="1">
<Grid Margin="120,0,20,20" x:Name="richTextColumns">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="250" />
<ColumnDefinition Width="30" />
<ColumnDefinition Width="400" />
<ColumnDefinition Width="30" />
<ColumnDefinition Width="400" />
<ColumnDefinition Width="*" />
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="Auto" />
<RowDefinition Height="Auto" />
<RowDefinition Height="Auto" />
<RowDefinition Height="*" />
</Grid.RowDefinitions>
<StackPanel Orientation="Vertical" Grid.Column="2" Grid.Row="1" Margin="0,0,0,10" x:Name="ContentPanel">
<TextBlock FontSize="22" FontWeight="Light" Text="{Binding Title}" TextWrapping="Wrap" />
<Image x:Name="image" Width="200" Margin="0,10,0,10" Stretch="UniformToFill" Source="{Binding Image}"/>
<StackPanel Orientation="Horizontal" Margin="0,0,0,5">
<RichTextBlock x:Name="InformationOriginalName" Width="250"
Style="{StaticResource ItemRichTextStyle}" IsTextSelectionEnabled="False">
<Paragraph>
<Run FontWeight="SemiLight" Text="{Binding EvaInformation.OriginalName}"/>
</Paragraph>
</RichTextBlock>
</StackPanel>
</StackPanel>
....
</Grid>
</ScrollViewer>
</UserControl>
</DataTemplate>
</FlipView.ItemTemplate>
How to stretch ContentPanel to FullScreen and hide all different controls, including Back button and title of page?
I have a DockPanel with two Grids (DockPanel.Dock="Right/Left"). In the left i have a TreeView and in the right i have some TextBoxes. If i resize my window the panels resize proportinal.
My problem is, if i write long text in a TextBox the TextBox enlarge and hide my left DockPanel instead of a break the text.
I have set minwidth of the left DockPanel to '300' and set TextWrapping in the TextBoxes to 'wrap' but nothing helps.
Source:
<Grid Background="#FF58ACFC" Name="main">
<DockPanel>
<Grid DockPanel.Dock="Right" Margin="0,0,5,0">
<Grid.ColumnDefinitions>
<ColumnDefinition MinWidth="200" />
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="26"/>
<RowDefinition Height="26"/>
<RowDefinition Height="26"/>
<RowDefinition Height="60" />
<RowDefinition Height="26"/>
<RowDefinition />
</Grid.RowDefinitions>
<Label Content="Titel:" Grid.Row="0"/>
<TextBox Grid.Row="1" IsReadOnly="False">
<Label Content="Frage:" Grid.Row="2"/>
<TextBox Grid.Row="3" TextWrapping="Wrap" IsReadOnly="False" AcceptsReturn="True">
<Label Content="Antwort:" Grid.Row="4"/>
<TextBox Grid.Row="5" IsReadOnly="False" TextWrapping="Wrap" />
</Grid>
<Grid DockPanel.Dock="Left" Margin="5,0,0,0">
<DockPanel>
<Grid DockPanel.Dock="Left">
<DockPanel LastChildFill="True">
<Grid DockPanel.Dock="Top" Height="26">
<Grid.ColumnDefinitions>
<ColumnDefinition />
<ColumnDefinition />
</Grid.ColumnDefinitions>
<Label Content="Kategorie" Grid.Column="0"/>
<Button Grid.Column="1" BorderThickness="0" HorizontalAlignment="Right">
</Grid>
<TreeView HorizontalAlignment="Stretch" VerticalAlignment="Stretch"Padding="0,0,15,0" />
</DockPanel>
</Grid>
<Grid DockPanel.Dock="Right">
<DockPanel LastChildFill="True">
<Grid DockPanel.Dock="Top" Height="26">
<Grid.ColumnDefinitions>
<ColumnDefinition />
<ColumnDefinition />
</Grid.ColumnDefinitions>
<Label Content="Lernkarten" Grid.Column="0"/>
<Button Grid.Column="1" Width="26" Click="ButtonAddItem_Click">
</Grid>
<ListView />
</DockPanel>
</Grid>
</DockPanel>
</Grid>
</DockPanel>
</Grid>
That's pretty much why Dockpanels are useless :-)
I suggest using Grid..