#1,017 – Scaling Items in a List Using a Slider

Below is an example of using a Slider control to scale a bunch of images in an ItemsControl.  The images are displayed within a WrapPanel.  As they are resized, the WrapPanel automatically updates the layout, so that the number of rows needed to display the images changes.

    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition/>
            <RowDefinition Height="Auto"/>
        </Grid.RowDefinitions>
        <ScrollViewer>
            <ItemsControl ItemsSource="{Binding ActorList}" Margin="20">
                <ItemsControl.ItemTemplate>
                    <DataTemplate>
                        <Image Source="{Binding Image}" Height="100">
                            <Image.LayoutTransform>
                                <ScaleTransform ScaleX="{Binding Value, ElementName=sliScale}"
                                                ScaleY="{Binding Value, ElementName=sliScale}"/>
                            </Image.LayoutTransform>
                        </Image>
                    </DataTemplate>
                </ItemsControl.ItemTemplate>
                <ItemsControl.ItemsPanel>
                    <ItemsPanelTemplate>
                        <WrapPanel/>
                    </ItemsPanelTemplate>
                </ItemsControl.ItemsPanel>
            </ItemsControl>
        </ScrollViewer>
        <Slider Name="sliScale" Grid.Row="1" Margin="10,5"
                Minimum="0.1" Maximum="3"
                Value="1.0"/>
    </Grid>

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About Sean
Software developer in the Twin Cities area, passionate about .NET technologies. Equally passionate about my own personal projects related to family history and preservation of family stories and photos.

One Response to #1,017 – Scaling Items in a List Using a Slider

  1. Pingback: Dew Drop – February 26, 2014 (#1731) | Morning Dew

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