Controls WPF inside Winforms no refresh

Question

I sorry for my english.

I have a WINFORMS project and within this a WPF User Control.

The WPF shown me correctly, but when I update some controls in WPF not update me such control. (Textbox, labels, image, etc.)

Leave a simple example of a WPF within a Winforms that when you click the button should show in the textbox a "Hello World". But I did not work.

Form1.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace IntegracionWPF
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(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.
        UserControl1 userControl1 = new UserControl1();
        userControl1.setText("Hola Mundo");

        // Assign the WPF UserControl to the ElementHost control's
        // Child property.
        host.Child = userControl1;

        // Add the ElementHost control to the form's
        // collection of child controls.
        this.Controls.Add(host);
    }
    }
}

userControl1.xaml.cs

    using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace IntegracionWPF
{
    public partial class UserControl1 : UserControl
    {
        public UserControl1()
        {
            InitializeComponent();
        }
        public void setText(string text)
        {
            textBox1.Text = text;
        }
    }
}

aren't you creating a new UserContol1() and not referencing the one that you have dragged on your form? — sous2817, Aug 16 '16 at 12:49
in your sample `userControl1`, created in `button1_Click`, is not displayed at all — ASh, Aug 16 '16 at 12:49
I edited my question as recommended by Uthistran but still does not work — Fran Pino, Aug 17 '16 at 05:16

Uthistran Selvaraj · Answer 1 · 2016-08-17T05:26:26.637

0

Hope you are looking for Elementhost. It helps you on this. Modify the button click in form1 as below

    private void button1_Click(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.
        UserControl1 userControl1 = new UserControl1();
        userControl1.setText("Hola Mundo");

        // Assign the WPF UserControl to the ElementHost control's
        // Child property.
        host.Child = userControl1;

        // Add the ElementHost control to the form's
        // collection of child controls.
        this.Controls.Add(host);
    }

edited Aug 17 '16 at 05:26

answered Aug 16 '16 at 13:09

Uthistran Selvaraj

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I edited my code, but it still does not work. I click the button , but does not change the text. – Fran Pino Aug 17 '16 at 05:19
any exceptions/error message you get. when i tried , it worked – Uthistran Selvaraj Aug 17 '16 at 05:28
I haven't error or exception, I have the button on the Form and TextBox in WPF – Fran Pino Aug 17 '16 at 05:35
sorry, i found this error, the PDB file is not found or can not be opened – Fran Pino Aug 17 '16 at 05:43
http://stackoverflow.com/questions/8412851/visual-studio-2010-cannot-find-or-open-the-pdb-file – Uthistran Selvaraj Aug 17 '16 at 06:06
Thank You, PDB error file not found is resolved. But it still does not work , I click and does not change the textBox – Fran Pino Aug 17 '16 at 06:36

Controls WPF inside Winforms no refresh

1 Answers1