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Guía paso a paso: Hospedar un control compuesto de WPF 3D en Windows Forms

En este tutorial se muestra cómo crear un control compuesto de WPF y hospedarlo en controles y formularios de Windows Forms mediante el ElementHost control .

En este tutorial, implementará un WPF UserControl que contiene dos controles secundarios. UserControl Muestra un cono tridimensional (3D). La representación de objetos 3D es mucho más fácil con WPF que con Windows Forms. Por lo tanto, tiene sentido hospedar una clase WPF UserControl para crear gráficos 3D en Windows Forms.

Las tareas que se muestran en este tutorial incluyen:

Prerrequisitos

Necesitará los componentes siguientes para completar este tutorial:

  • Visual Studio 2017

Creación de UserControl

  1. Cree un proyecto de biblioteca de control de usuarios de WPF denominado HostingWpfUserControlInWf.

  2. Abra UserControl1.xaml en WPF Designer.

  3. Reemplace el código generado por el código siguiente:

    <UserControl x:Class="HostingWpfUserControlInWf.UserControl1"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        >
      
        <Grid>
    
          <!-- Place a Label control at the top of the view. -->
          <Label 
                    HorizontalAlignment="Center" 
                    TextBlock.TextAlignment="Center" 
                    FontSize="20" 
                    Foreground="Red" 
                    Content="Model: Cone"/>
    
          <!-- Viewport3D is the rendering surface. -->
          <Viewport3D Name="myViewport" >
    
            <!-- Add a camera. -->
            <Viewport3D.Camera>
              <PerspectiveCamera 
                            FarPlaneDistance="20" 
                            LookDirection="0,0,1" 
                            UpDirection="0,1,0" 
                            NearPlaneDistance="1" 
                            Position="0,0,-3" 
                            FieldOfView="45" />
            </Viewport3D.Camera>
    
            <!-- Add models. -->
            <Viewport3D.Children>
    
              <ModelVisual3D>
                <ModelVisual3D.Content>
    
                  <Model3DGroup >
                    <Model3DGroup.Children>
    
                      <!-- Lights, MeshGeometry3D and DiffuseMaterial objects are added to the ModelVisual3D. -->
                      <DirectionalLight Color="#FFFFFFFF" Direction="3,-4,5" />
    
                      <!-- Define a red cone. -->
                      <GeometryModel3D>
    
                        <GeometryModel3D.Geometry>
                          <MeshGeometry3D 
        Positions="0.293893 -0.5 0.404509  0.475528 -0.5 0.154509  0 0.5 0  0.475528 -0.5 0.154509  0 0.5 0  0 0.5 0  0.475528 -0.5 0.154509  0.475528 -0.5 -0.154509  0 0.5 0  0.475528 -0.5 -0.154509  0 0.5 0  0 0.5 0  0.475528 -0.5 -0.154509  0.293893 -0.5 -0.404509  0 0.5 0  0.293893 -0.5 -0.404509  0 0.5 0  0 0.5 0  0.293893 -0.5 -0.404509  0 -0.5 -0.5  0 0.5 0  0 -0.5 -0.5  0 0.5 0  0 0.5 0  0 -0.5 -0.5  -0.293893 -0.5 -0.404509  0 0.5 0  -0.293893 -0.5 -0.404509  0 0.5 0  0 0.5 0  -0.293893 -0.5 -0.404509  -0.475528 -0.5 -0.154509  0 0.5 0  -0.475528 -0.5 -0.154509  0 0.5 0  0 0.5 0  -0.475528 -0.5 -0.154509  -0.475528 -0.5 0.154509  0 0.5 0  -0.475528 -0.5 0.154509  0 0.5 0  0 0.5 0  -0.475528 -0.5 0.154509  -0.293892 -0.5 0.404509  0 0.5 0  -0.293892 -0.5 0.404509  0 0.5 0  0 0.5 0  -0.293892 -0.5 0.404509  0 -0.5 0.5  0 0.5 0  0 -0.5 0.5  0 0.5 0  0 0.5 0  0 -0.5 0.5  0.293893 -0.5 0.404509  0 0.5 0  0.293893 -0.5 0.404509  0 0.5 0  0 0.5 0  " 
        Normals="0.7236065,0.4472139,0.5257313  0.2763934,0.4472138,0.8506507  0.5308242,0.4294462,0.7306172  0.2763934,0.4472138,0.8506507  0,0.4294458,0.9030925  0.5308242,0.4294462,0.7306172  0.2763934,0.4472138,0.8506507  -0.2763934,0.4472138,0.8506507  0,0.4294458,0.9030925  -0.2763934,0.4472138,0.8506507  -0.5308242,0.4294462,0.7306172  0,0.4294458,0.9030925  -0.2763934,0.4472138,0.8506507  -0.7236065,0.4472139,0.5257313  -0.5308242,0.4294462,0.7306172  -0.7236065,0.4472139,0.5257313  -0.858892,0.429446,0.279071  -0.5308242,0.4294462,0.7306172  -0.7236065,0.4472139,0.5257313  -0.8944269,0.4472139,0  -0.858892,0.429446,0.279071  -0.8944269,0.4472139,0  -0.858892,0.429446,-0.279071  -0.858892,0.429446,0.279071  -0.8944269,0.4472139,0  -0.7236065,0.4472139,-0.5257313  -0.858892,0.429446,-0.279071  -0.7236065,0.4472139,-0.5257313  -0.5308242,0.4294462,-0.7306172  -0.858892,0.429446,-0.279071  -0.7236065,0.4472139,-0.5257313  -0.2763934,0.4472138,-0.8506507  -0.5308242,0.4294462,-0.7306172  -0.2763934,0.4472138,-0.8506507  0,0.4294458,-0.9030925  -0.5308242,0.4294462,-0.7306172  -0.2763934,0.4472138,-0.8506507  0.2763934,0.4472138,-0.8506507  0,0.4294458,-0.9030925  0.2763934,0.4472138,-0.8506507  0.5308249,0.4294459,-0.7306169  0,0.4294458,-0.9030925  0.2763934,0.4472138,-0.8506507  0.7236068,0.4472141,-0.5257306  0.5308249,0.4294459,-0.7306169  0.7236068,0.4472141,-0.5257306  0.8588922,0.4294461,-0.27907  0.5308249,0.4294459,-0.7306169  0.7236068,0.4472141,-0.5257306  0.8944269,0.4472139,0  0.8588922,0.4294461,-0.27907  0.8944269,0.4472139,0  0.858892,0.429446,0.279071  0.8588922,0.4294461,-0.27907  0.8944269,0.4472139,0  0.7236065,0.4472139,0.5257313  0.858892,0.429446,0.279071  0.7236065,0.4472139,0.5257313  0.5308242,0.4294462,0.7306172  0.858892,0.429446,0.279071  "                   TriangleIndices="0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 " />
                        </GeometryModel3D.Geometry>
    
                        <GeometryModel3D.Material>
                          <DiffuseMaterial>
                            <DiffuseMaterial.Brush>
                              <SolidColorBrush 
                                Color="Red" 
                                Opacity="1.0"/>
                            </DiffuseMaterial.Brush>
                          </DiffuseMaterial>
                        </GeometryModel3D.Material>
    
                      </GeometryModel3D>
    
                    </Model3DGroup.Children>
                  </Model3DGroup>
    
                </ModelVisual3D.Content>
    
              </ModelVisual3D>
    
            </Viewport3D.Children>
    
          </Viewport3D>
        </Grid>
      
    </UserControl>
    

    Este código define un System.Windows.Controls.UserControl que contiene dos controles secundarios. El primer control secundario es un System.Windows.Controls.Label control; el segundo es un Viewport3D control que muestra un cono 3D.

Creación del proyecto host

  1. Agregue un proyecto de aplicación de Windows Forms (.NET Framework) denominado WpfUserControlHost a la solución.

  2. En el Explorador de soluciones, agregue una referencia al ensamblado WindowsFormsIntegration, que se denomina WindowsFormsIntegration.dll.

  3. Agregue referencias a los siguientes ensamblados de WPF:

    • PresentationCore

    • PresentationFramework

    • WindowsBase

  4. Agregue una referencia al proyecto de HostingWpfUserControlInWf.

  5. En el Explorador de soluciones, establezca el WpfUserControlHost proyecto como proyecto de inicio.

Alojar el control de usuario

  1. En el Diseñador de Windows Forms, abra Form1.

  2. En la ventana Propiedades, haga clic en Eventos y, a continuación, haga doble clic en el Load evento para crear un controlador de eventos.

    El Editor de código se abre en el controlador de eventos recién generado Form1_Load .

  3. Reemplace el código de Form1.cs por el código siguiente.

    El Form1_Load controlador de eventos crea una instancia de UserControl1 y la agrega a la ElementHost colección de controles secundarios del control. El ElementHost componente se agrega a la colección de controles secundarios del formulario.

    using System;
    using System.Collections.Generic;
    using System.ComponentModel;
    using System.Data;
    using System.Drawing;
    using System.Text;
    using System.Windows.Forms;
    
    using System.Windows.Forms.Integration;
    
    namespace WpfUserControlHost
    {
        public partial class Form1 : Form
        {
            public Form1()
            {
                InitializeComponent();
            }
    
            private void Form1_Load(object sender, EventArgs e)
            {
                // Create the ElementHost control for hosting the
                // WPF UserControl.
                ElementHost host = new ElementHost();
                host.Dock = DockStyle.Fill;
    
                // Create the WPF UserControl.
                HostingWpfUserControlInWf.UserControl1 uc =
                    new HostingWpfUserControlInWf.UserControl1();
    
                // Assign the WPF UserControl to the ElementHost control's
                // Child property.
                host.Child = uc;
    
                // Add the ElementHost control to the form's
                // collection of child controls.
                this.Controls.Add(host);
            }
        }
    }
    
    Imports System.Collections.Generic
    Imports System.ComponentModel
    Imports System.Data
    Imports System.Drawing
    Imports System.Text
    Imports System.Windows.Forms
    
    Imports System.Windows.Forms.Integration
    
    Public Class Form1
        Inherits Form
    
        Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
            ' Create the ElementHost control for hosting the
            ' WPF UserControl.
            Dim host As New ElementHost()
            host.Dock = DockStyle.Fill
    
            ' Create the WPF UserControl.
            Dim uc As New HostingWpfUserControlInWf.UserControl1()
    
            ' Assign the WPF UserControl to the ElementHost control's
            ' Child property.
            host.Child = uc
    
            ' Add the ElementHost control to the form's
            ' collection of child controls.
            Me.Controls.Add(host)
        End Sub
    
    End Class
    
  4. Presione F5 para compilar y ejecutar la aplicación.

Consulte también