WrapPanel as ItemPanel for ItemsControl

Question

Still fooling around with WPF and learning as I go. Trying now to build a dynamic grouping of controls (mostly Buttons but might include CheckBoxes and others).

I ha

Answer 1

Here's another simple alternative to slow DataGrid / xceed datagrid and WrapPanel solution. Might be useful when a lot of data or whole table is just for editing. Using ItemsControl + Grid.IsSharedSizeScope="True"

More info here: https://wpf.2000things.com/tag/issharedsizescope/ + On ItemsControl virutualization for performance: Virtualizing an ItemsControl?

<Grid Grid.IsSharedSizeScope="True" Margin="0,30,0,0">
    <Grid.RowDefinitions>
        <RowDefinition Height="Auto" />
        <RowDefinition Height="Auto" />
    </Grid.RowDefinitions>

    <Grid>
        <Grid.ColumnDefinitions>
            <ColumnDefinition MinWidth="50" Width="Auto" SharedSizeGroup="Id" />
            <ColumnDefinition MinWidth="50" Width="Auto" SharedSizeGroup="Time"  />
        </Grid.ColumnDefinitions>
        <Border Grid.Column="0" >
            <TextBlock VerticalAlignment="Center" TextWrapping="NoWrap" Text="Header1" />
        </Border>
        <Border Grid.Column="1" >
            <TextBlock VerticalAlignment="Center" TextWrapping="NoWrap" Text="Header2" />
        </Border>
    </Grid>

    <ItemsControl Grid.Row="1" ItemsSource="{Binding RunInstance.ConcentrationGradient.Steps}">
        <ItemsControl.ItemTemplate>
            <DataTemplate>
                <Grid>
                    <Grid.ColumnDefinitions>
                        <ColumnDefinition MinWidth="50" Width="Auto" SharedSizeGroup="Id" />
                        <ColumnDefinition MinWidth="50" Width="Auto" SharedSizeGroup="Time" />
                    </Grid.ColumnDefinitions>
                    <Border Grid.Column="0">
                        <TextBlock VerticalAlignment="Center" TextWrapping="NoWrap" Text="{Binding Index, Mode=OneWay, UpdateSourceTrigger=PropertyChanged}" />
                    </Border>
                     <Border Grid.Column="1">
                        <TextBlock VerticalAlignment="Center" TextWrapping="NoWrap" Text="{Binding Time, Mode=OneWay, UpdateSourceTrigger=PropertyChanged}" />
                    </Border>
                </Grid>
            </DataTemplate>
        </ItemsControl.ItemTemplate>
    </ItemsControl>
</Grid>

Answer 2

Don't forget definition of clue property IsItemsHost="True". Otherwise your ItemsControl won't show your items.

<ListBox ItemsSource="{Binding MyItemsSource}">
        <ItemsControl.ItemsPanel>
            <ItemsPanelTemplate >
                <WrapPanel IsItemsHost="True"/>
            </ItemsPanelTemplate>
        </ItemsControl.ItemsPanel>
    </ListBox>

Answer 3

You might want to take a look at the ItemsPanel property:

Gets or sets the template that defines the panel that controls the layout of items.

Example:

<ItemsControl>
    <ItemsControl.ItemsPanel>
        <ItemsPanelTemplate>
            <WrapPanel />
        </ItemsPanelTemplate>
    </ItemsControl.ItemsPanel>
</ItemsControl>

And you can set it in a Style as follows:

<Style TargetType="ItemsControl">
    <Setter Property="ItemsPanel">
      <Setter.Value>
            <ItemsPanelTemplate>
                <WrapPanel />
            </ItemsPanelTemplate>
        </Setter.Value>
    </Setter>
</Style>