I have encountered a problem - i have created a project where i bind my code to xaml by using a bind to the listbox. However, it has created some problems in my future code - i want to add button to my form, but i encounter some errors.
'Items collection must be empty before using ItemsSource.'
This Error occurs when i try to bind something outside of my bindable Listbox.
The property "VisualTree" can only be set once.
This Error occurs when i try to add button underneath the Listbox.
Can someone guide me on how can i fix this?
My code:
<ListBox x:Name="ItemsControl1">
<ListBox.ItemsPanel>
<ItemsPanelTemplate>
<UniformGrid Columns="5">
</UniformGrid>
</ItemsPanelTemplate>
</ListBox.ItemsPanel>
<ListBox.ItemTemplate>
<DataTemplate>
<Border BorderBrush="Black" BorderThickness="2" Width="Auto" Height="Auto">
<StackPanel Orientation="Horizontal">
<TextBlock Text="{Binding Number}"/>
<Image Source="{Binding Source}" Margin="0,0,5,0"/>
</StackPanel>
</Border>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
The desirable result would be a button under the listbox.
You should add your button below ListBox declaration.
Exceptions you are facing are thrown because visual tree is populated via binding and you cannot alter it manually anymore.
You will need to put all this stuff inside of some layout container (Grid, StackPanel, etc.), since you cannot set Window's/UserControl's Content property twice:
<StackPanel>
<ListBox x:Name="ItemsControl1">
<ListBox.ItemsPanel>
<ItemsPanelTemplate>
<UniformGrid Columns="5">
</UniformGrid>
</ItemsPanelTemplate>
</ListBox.ItemsPanel>
<ListBox.ItemTemplate>
<DataTemplate>
<Border BorderBrush="Black" BorderThickness="2" Width="Auto" Height="Auto">
<StackPanel Orientation="Horizontal">
<TextBlock Text="{Binding Number}"/>
<Image Source="{Binding Source}" Margin="0,0,5,0"/>
</StackPanel>
</Border>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
<Button/>
</StackPanel>
Related
I'm making a list of products that display within a listbox that scrolls horizontally. I have the list scrolling horizontally however I only ever get 1 row of items even though the list box is high enough to populate 2 rows before it starts scrolling horizontally.
Part of my WPF code.
<DataTemplate x:Key="productTemplate">
<WrapPanel Orientation="Horizontal" Width="10" Height="10">
<Image Source="{Binding Photo}" Stretch="Fill" HorizontalAlignment="Center" VerticalAlignment="Center" Width="288" Height="320"/>
<Label Content="{Binding Name}" />
<Label Content="{Binding Cost}" />
</WrapPanel>
</DataTemplate>
<ListBox Width="1334" ItemsSource="{Binding Products}" SelectedItem="{Binding SelectedProduct}" ItemTemplate="{DynamicResource productTemplate}" Height="865" ScrollViewer.HorizontalScrollBarVisibility="Hidden" ScrollViewer.VerticalScrollBarVisibility="Disabled" BorderThickness="0">
<ListBox.Background>
<SolidColorBrush Color="White" Opacity="0.85"/>
</ListBox.Background>
<ListBox.ItemsPanel>
<ItemsPanelTemplate>
<WrapPanel IsItemsHost="True" />
</ItemsPanelTemplate>
</ListBox.ItemsPanel>
</ListBox>
I'm looking for:
Any help would be great.
The WrapPanel that is used as ItemsPanel must have vertical orientation, and the ListBox must not scroll vertically:
<ListBox ScrollViewer.VerticalScrollBarVisibility="Disabled" ...>
<ListBox.ItemsPanel>
<ItemsPanelTemplate>
<WrapPanel Orientation="Vertical" />
</ItemsPanelTemplate>
</ListBox.ItemsPanel>
...
</ListBox>
Maybe the following code will help you. The following code will help you to bind images in the following manner.
<ListBox Grid.Column="1" ItemsSource="{Binding Items}" Name="detailList" ScrollViewer.HorizontalScrollBarVisibility="Disabled">
<ListBox.ItemsPanel>
<ItemsPanelTemplate>
<WrapPanel Orientation="Horizontal"></WrapPanel>
</ItemsPanelTemplate>
</ListBox.ItemsPanel>
<ListBox.ItemTemplate>
<DataTemplate>
<StackPanel Orientation="Vertical" Width="90">
<Image Width="80" Source="{Binding Type,
Converter={x:Static local:HeaderToImageConverter.Instance}}"/>
<TextBlock FontSize="11" Text="{Binding Name}" VerticalAlignment="Center"/>
</StackPanel>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
I want my custom build ListBox to display the items on the next line if their size exceeds the available width of their parent control.
Following is my XAML for this purpose.
<materialDesign:Card>
<StackPanel>
<TextBlock FontWeight="DemiBold" FontSize="30">Schedule</TextBlock>
<ListBox ItemsSource="{Binding Schedule, Source={StaticResource dc}}">
<ListBox.ItemsPanel>
<ItemsPanelTemplate>
<StackPanel Orientation="Horizontal" />
</ItemsPanelTemplate>
</ListBox.ItemsPanel>
<ListBox.ItemTemplate>
<DataTemplate>
<ListBoxItem>
<StackPanel Orientation="Horizontal">
<StackPanel Orientation="Horizontal">
<TextBlock>Day:</TextBlock>
<TextBlock Text="{Binding Key, Mode=OneWay}" />
</StackPanel>
<materialDesign:TimePicker materialDesign:HintAssist.Hint="Time In" SelectedTime="{Binding Value.TimeIn}" />
<materialDesign:TimePicker materialDesign:HintAssist.Hint="Time Out" SelectedTime="{Binding Value.TimeOut}" />
</StackPanel>
</ListBoxItem>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
</StackPanel>
</materialDesign:Card>
Following is the Output for the above XAML
You should use a WrapPanel instead of a StackPanel, then.
As H.B. said, the ItemPanel control you should use is a WrapPanel that let you achieve what you want (when there isn't enough space for your control, it creates a new line).
Here it is an example:
<ListBox.ItemsPanel>
<ItemsPanelTemplate>
<WrapPanel Orientation="Horizontal"/>
</ItemsPanelTemplate>
</ListBox.ItemsPanel>
This question already has answers here:
I need Horizontal view of list boxes
(5 answers)
Closed 9 years ago.
I have a grid of size 400 x 150 in which I would like to add a Listbox.
The Listbox is composed of a grid that contains a TextBlock.
<Grid Width="400" Height="150">
<ListBox x:Name="list" >
<ListBox.ItemTemplate>
<DataTemplate>
<StackPanel Orientation="Horizontal">
<Grid Width = "80">
<Border BorderBrush="Black" HorizontalAlignment="Right" />
<TextBlock Foreground="Black" Text="{Binding name}" />
</Grid>
</StackPanel>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
</Grid>
But the list is displayed vertically.
I tried to use a VirtualizingStackPanel but the problem is that the borders of the grids don't appear correctly.
How can I make this list look horizontal, with the borders of the grid that contains the textblock visible?
U can use like this to have horizontal scrollViewer of Listbox
<Grid Width="400" Height="150">
<ListBox x:Name="list" ScrollViewer.HorizontalScrollBarVisibility="Visible" ScrollViewer.VerticalScrollBarVisibility="Hidden" >
<ListBox.ItemsPanel>
<ItemsPanelTemplate >
<StackPanel Orientation="Horizontal"></StackPanel>
</ItemsPanelTemplate>
</ListBox.ItemsPanel>
<ListBox.ItemTemplate>
<DataTemplate >
<StackPanel Orientation="Horizontal">
<Grid Width = "80">
<Border BorderBrush="Black" HorizontalAlignment="Right" />
<TextBlock Foreground="Black" Text="{Binding name}" />
</Grid>
</StackPanel>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
</Grid>
In addition to this You have to adjust height and width of both listbox and grid according to your requirement.
If I am correct, you don't want a StackPanel inside the DataTemplate, you actually want a horizontally laid out items inside the ListBox. You need to change the ListBox.ItemsPanel and you need to disable vertical scroll and enable horizontal scroll in the ListBox. Here is the full XAML:
<ListBox ScrollViewer.VerticalScrollBarVisibility="Disabled"
ScrollViewer.HorizontalScrollBarVisibility="Auto">
<ListBox.ItemsPanel>
<ItemsPanelTemplate>
<VirtualizingStackPanel Orientation="Horizontal"
CanVerticallyScroll="False"
CanHorizontallyScroll="True"/>
</ItemsPanelTemplate>
</ListBox.ItemsPanel>
</ListBox>
I think you can use ItemsPanel to change the oriention of listBox. and the borderThickness is also necessary.Hope I can help you. Thx!
<Grid Width="400" Height="150">
<ListBox x:Name="list" >
<ListBox.ItemTemplate>
<DataTemplate>
<StackPanel Orientation="Horizontal">
<Grid Width = "80">
<!-- if you want to use border to separate items, HorizontalAlignment="Right";
and if use it as container, HorizontalAlignment="Stretch" -->
<Border BorderBrush="Black" BorderThickness="1" HorizontalAlignment="Right"/>
<TextBlock Foreground="Black" Text="{Binding name}" />
</Grid>
</StackPanel>
</DataTemplate>
</ListBox.ItemTemplate>
<ListBox.ItemsPanel>
<ItemsPanelTemplate>
<StackPanel Orientation="Horizontal"/>
</ItemsPanelTemplate>
</ListBox.ItemsPanel>
</ListBox>
</Grid>
I think Chris is on the right lines, but I am sure you need a content presenter in the ItemsPanel template.
<Grid Width="400" Height="150">
<ListBox x:Name="list" >
<ListBox.ItemTemplate>
<DataTemplate>
<StackPanel Orientation="Horizontal">
<Grid Width = "80">
<!-- if you want to use border to separate items, HorizontalAlignment="Right";
and if use it as container, HorizontalAlignment="Stretch" -->
<Border BorderBrush="Black" BorderThickness="1" HorizontalAlignment="Right">
<TextBlock Foreground="Black" Text="{Binding name}" />
</Border>
</Grid>
</StackPanel>
</DataTemplate>
</ListBox.ItemTemplate>
<ListBox.ItemsPanel>
<ItemsPanelTemplate>
<StackPanel Orientation="Horizontal">
<ContentPresenter/>
</StackPanel>
</ItemsPanelTemplate>
</ListBox.ItemsPanel>
</ListBox>
Use this code it could help you:
<Grid Width="400" Height="150">
<ListBox x:Name="list" >
<ListBox.ItemsPanel>
<ItemsPanelTemplate>
<StackPanel Orientation="Horizontal"/>
</ItemsPanelTemplate>
</ListBox.ItemsPanel>
<ListBox.ItemTemplate>
<DataTemplate>
<Grid Width = "80">
<Border BorderBrush="Black" HorizontalAlignment="Right" />
<TextBlock Foreground="Black" Text="{Binding name}" />
</Grid>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
</Grid>
Use ItemsPanel property of listbox. try this its work for me.
<Grid Width="400" Height="150">
<ListBox x:Name="list" >
<ListBox.ItemsPanel>
<ItemsPanelTemplate>
<StackPanel Orientation="Horizontal">
</ItemsPanelTemplate>
</ListBox.ItemsPanel>
<ListBox.ItemTemplate>
<DataTemplate>
<StackPanel Orientation="Horizontal">
<Grid Width = "80">
<Border BorderBrush="Black" HorizontalAlignment="Right" />
<TextBlock Foreground="Black" Text="{Binding name}" />
</Grid>
</StackPanel>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
</Grid>
My WPF Application is generating dynamic Buttons. I want to show these Button Horizontally. I wrote Code for this. Code is working fine but rather than showing button in Horizontal Direction, it is showing all Buttons in Vertical Direction! Where i also set Orientation of StackPanel!
Can anyone solve my Problem?
My Code is:
<Grid>
<dxlc:ScrollBox>
<ItemsControl x:Name="Buttonslist">
<ItemsControl.ItemTemplate>
<DataTemplate>
<StackPanel Orientation="Horizontal">
<Button Content="{Binding Text}" Tag="{Binding Text}" x:Name="New" Margin="5,0,5,0" Click="New_Click" />
</StackPanel>
</DataTemplate>
</ItemsControl.ItemTemplate>
</ItemsControl>
</dxlc:ScrollBox>
</Grid>
You're actually creating a StackPanel for each item/Button. To get just one for all the items you need to set the ItemsPanel of the control to a StackPanel.
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<StackPanel Orientation="Horizontal"/>
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
<ItemsControl.ItemTemplate>
<DataTemplate>
<Button Content="{Binding Text}" Tag="{Binding Text}" x:Name="New" Margin="5,0,5,0" Click="New_Click" />
</DataTemplate>
</ItemsControl.ItemTemplate>
I am trying to display buttons dynamically on the screen in a wrap panel so that they are laid our nicely without any scrollbars. I have the markup as below, but the scrollbars appear for some reason. how do we make the scrollbar not appear and the buttons laid out without any scrollbars.
<ListBox x:Name="ItemsListBox" >
<ListBox.ItemTemplate>
<DataTemplate>
<ToggleButton Content="{Binding Name}" Click="Click" MinWidth="120" MinHeight="70" FontWeight="Bold" FontSize="18"/>
</DataTemplate>
</ListBox.ItemTemplate>
<ListBox.ItemsPanel>
<ItemsPanelTemplate>
<WrapPanel></WrapPanel>
</ItemsPanelTemplate>
</ListBox.ItemsPanel>
</ListBox>
What control is your ListBox inside? Most often the problem you descrive is caused by the parent control allowing the ListBox to grow.
You can prove whether this is the problem by setting an explicit Width="200" on your ListBox and testing what happens. If it wraps, then the problem is the ListBox's parent.
Add
ScrollViewer.VerticalScrollBarVisibility="Hidden"
ScrollViewer.HorizontalScrollBarVisibility="Hidden"
to you containers.
This does it what I was trying to achieve.
<ItemsControl x:Name="ListBox" Grid.Row="5" Grid.ColumnSpan="2">
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<WrapPanel Orientation="Vertical"/>
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
<ItemsControl.ItemTemplate>
<DataTemplate>
<ToggleButton Content="{Binding Name}" MinWidth="120" MinHeight="50" FontWeight="Bold" FontSize="16" Margin="5"/>
</DataTemplate>
</ItemsControl.ItemTemplate>
</ItemsControl>