如何在WPF中的UserControl中使用画布

Question

i want to use Canvas in UserControl in WPF but there isn't any Canvas in

public partial class UserControl1 : UserControl

i want to change this second userControl to Canvas
what should i do?
With Respect

Answer 1

Canvas class is in the assembly PresentationFramework.dll , so you should add reference to this assembly ( msdn ):

Namespace: System.Windows.Controls

Assembly: PresentationFramework (in PresentationFramework.dll)

XMLNS for XAML: http://schemas.microsoft.com/winfx/2006/xaml/presentation , http://schemas.microsoft.com/netfx/2007/xaml/presentation

UPDATE

1) You should change this value in code-behind:

public partial class UserControl1 : Canvas
{
    public UserControl1()
    {
        InitializeComponent();
    }
}

2) You should change it in XAML:

<Canvas x:Class="MyApp.UserControl1"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
             mc:Ignorable="d" 
             d:DesignHeight="300" d:DesignWidth="300">

</Canvas>