Robby Smet Robby Smet - 1 month ago 37
C# Question

How to add canvas xaml resource in usercontrol

I have downloaded this pack : http://modernuiicons.com/ and I'm trying to use the xaml icons.

I have added a xaml file to my solution with the following content

<?xml version="1.0" encoding="utf-8"?>
<Canvas xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" x:Name="appbar_check" Width="76" Height="76" Clip="F1 M 0,0L 76,0L 76,76L 0,76L 0,0">
<Path Width="37.9998" Height="31.6665" Canvas.Left="19.0001" Canvas.Top="22.1668" Stretch="Fill" Fill="#FF000000" Data="F1 M 23.7501,33.25L 34.8334,44.3333L 52.2499,22.1668L 56.9999,26.9168L 34.8334,53.8333L 19.0001,38L 23.7501,33.25 Z "/>
</Canvas>


Now, how do I reference this canvas to my usercontrol?

Usercontrol

<UserControl
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:i="http://schemas.microsoft.com/expression/2010/interactivity" xmlns:ei="http://schemas.microsoft.com/expression/2010/interactions"
mc:Ignorable="d"
x:Class="UserControlSolution.UserControlButton"
x:Name="UserControl"
Height="50" Background="#FF2F2F2F" BorderBrush="#FF919191">


<Grid x:Name="LayoutRoot" Height="50" RenderTransformOrigin="0.5,0.5">
<Rectangle x:Name="rectangle" RenderTransformOrigin="0.5,0.5" Width="230" Height="50"/>
<TextBlock x:Name="NameLabel" FontSize="16" Foreground="#FFE5E5E5" Height="34" Width="149" Text="Onthaal Telefoon" VerticalAlignment="Top" HorizontalAlignment="Left" Margin="10,10,0,0" FontFamily="Segoe UI Semibold"/>
<Viewbox HorizontalAlignment="Right" VerticalAlignment="Top" Height="16.5" Width="17.789" Margin="0,15,24.5,0">
// Here I want to reference the canvas
</Viewbox>
</Grid>
</UserControl>


I can copy the content of the canvas offcourse but there must be another solution.

Answer Source

Add the Canvas and Path as a resource on the page or in the App.xaml or whatever, remember to set x:Key. Then use a ContentControl to reference the resource.

<!-- In Resources, either on the Page or App.xaml for app-wide reuse -->
<Canvas x:Key="TickCanvas" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" x:Name="appbar_check" Width="76" Height="76" Clip="F1 M 0,0L 76,0L 76,76L 0,76L 0,0">
    <Path Width="37.9998" Height="31.6665" Canvas.Left="19.0001" Canvas.Top="22.1668" Stretch="Fill" Fill="#FF000000" Data="F1 M 23.7501,33.25L 34.8334,44.3333L 52.2499,22.1668L 56.9999,26.9168L 34.8334,53.8333L 19.0001,38L 23.7501,33.25 Z "/>
</Canvas

<!-- On your page, or somewhere -->
<ViewBox>
    <ContentControl Content="{StaticResource TickCanvas}" />
</ViewBox>

As proof it works, I was able to see its a tick!

Just a side note, I often take just the path data, the mini-markup and save that as a string resource. Then using a Path I reference the markup resource via Data={StaticResource TickPath} that way I can resize the vector using the Height and Width on the Path itself or let it expand and shrink by its parent by setting Stretch="Uniform". Saves the overhead of the Viewbox.

<!-- In App.xaml for app-wide reuse -->
<x:String x:Key="TickPath">F1 M 23.7501,33.25L 34.8334,44.3333L 52.2499,22.1668L 56.9999,26.9168L 34.8334,53.8333L 19.0001,38L 23.7501,33.25 Z </x:String>

<!-- On page, template or wherever -->
<Path Data="{StaticResource TickPath} />

This technique may not work in this instance as there's a clip geometry there. But for simple vectors its fine, I have hand drawn typefaces (that can't be embedded as fonts) stored as markup in files, I then load them in at runtime - Data={Binding PathData} works just as well.