WPF

Charith Jayasundara wrote:

I am not sure, did you try BackgroundWorker, progressReport() ?

<Window x:Class="ImTextbox.Window1"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="Window1" Height="355" Width="498">
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="250*" />
            <RowDefinition Height="67*" />
        </Grid.RowDefinitions>
        <ItemsControl x:Name="listbox">
            <ItemsControl.ItemTemplate>
                <DataTemplate>
                    <Border BorderBrush="Chartreuse" BorderThickness="2" CornerRadius="5" Margin="2" >
                        <ContentPresenter Content="{Binding}" Margin="4"/>
                    </Border>
                </DataTemplate>
            </ItemsControl.ItemTemplate>
        </ItemsControl>
        <TextBox AcceptsReturn="True" x:Name="textbox" Grid.Row="1" Margin="4" />
    </Grid>
</Window>

public partial class Window1 : Window
{
    public Window1()
    {
        InitializeComponent();
        textbox.PreviewKeyDown += new KeyEventHandler(textbox_PreviewKeyDown);
    }

    void textbox_PreviewKeyDown(object sender, KeyEventArgs e)
    {
        if (e.Key == Key.Enter && (e.KeyboardDevice.Modifiers & ModifierKeys.Shift) != ModifierKeys.Shift)
        {
            listbox.Items.Add(textbox.Text);
            textbox.Clear();
            e.Handled = true;
        }
    }
    
}

<Window x:Class="WPFAppl.WpfWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:wf="clr-namespace:System.Windows.Forms;assembly=System.Windows.Forms"
    Title="Title" 
	Height="200" 
	Width="400" 
	WindowStartupLocation="CenterScreen" 
	Loaded="Window_Loaded">
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="*" />
        </Grid.RowDefinitions>
        <StackPanel Orientation="Horizontal" Grid.Row="0">
            <WindowsFormsHost Width="360" >
                <wf:DataGridView x:Name="gridView" 
                                  AllowUserToAddRows="False" 
                                  SelectionMode="FullRowSelect" 
                                  EditMode="EditProgrammatically" >
                </wf:DataGridView >
            </WindowsFormsHost >
        </StackPanel>
    </Grid>
</Window>


        private DataTable dt;
		
        private void Window_Loaded(object sender, RoutedEventArgs e)
        {
            dt = new DataTable();
            dt.Columns.Add("attr1", typeof(string));
            dt.Columns.Add("attr2", typeof(string));
            dt.Columns.Add("attr3", typeof(string));
            gridView.DataSource = dt;
        }

Mark Salsbery
Microsoft MVP - Visual C++

<Window x:Class="WPFAppl.WpfWindow" 	    
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 	    
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 	    
        xmlns:local="clr-namespace:WPFAppl" 	    
        Title="Title" 
        Height="200"
        Width="400"	    
        WindowStartupLocation="CenterScreen" 
        Name="This" 	    
        Loaded="UserControl_Loaded"
        SizeChanged="gridView_SelectionChanged">
    <Window.Resources>
        <DataTemplate x:Key="ThisTemplate">
            <Grid>
                <Grid.RowDefinitions>
                    <RowDefinition Height="*" />
                    <RowDefinition Height="*" />
                </Grid.RowDefinitions>
                <StackPanel Orientation="Horizontal" 
                            Grid.Row="0" >
                    <WindowsFormsHost Width="360" 
                                      xmlns="clr-namespace:System.Windows.Forms.Integration;assembly=WindowsFormsIntegration">
                        <DataGridView x:Name="gridView" 
                                      AllowUserToAddRows="False"
                                      SelectionMode="FullRowSelect"    
                                      EditMode="EditProgrammatically"
                                      xmlns="clr-namespace:System.Windows.Forms;assembly=System.Windows.Forms" >
                        </DataGridView>
                    </WindowsFormsHost>
                </StackPanel>
                <Button Height="22.5" Grid.Row="2" Name="button1" Width="75" Click="button1_ClickT1">Button</Button>
            </Grid >
        </DataTemplate>
        <DataTemplate x:Key="SecondTemplate">
            <Grid>
                <Grid.RowDefinitions>
                    <RowDefinition Height="*" />
                    <RowDefinition Height="*" />
                </Grid.RowDefinitions>
                <Grid.ColumnDefinitions>
                    <ColumnDefinition Width="*" />
                    <ColumnDefinition Width="*" />
                </Grid.ColumnDefinitions>
                <Label Grid.Row="0" Grid.Column="1" Name="label1" Width="120">Second template</Label>
                <Button Height="22.5" Grid.Row="1" Name="button1" Width="75" Click="button1_Click">Button</Button>
            </Grid>
        </DataTemplate>
    </Window.Resources>
</Window> 

using System; 	
using System.Collections.Generic; 	
using System.Linq; 	
using System.Text; 	
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; 	
using System.ComponentModel; 	
using System.Collections.ObjectModel; 	
using System.Xml; 	
using System.Data; 	
using System.Globalization;
using System.Windows.Threading;
using System.Threading;

namespace WPFAppl
{ 	    /// <summary> 	    
    /// Interaction logic for Window1.xaml 	    
    /// </summary> 	    
    public partial class WpfWindow : Window
    {
        public WpfWindow() 
        { 
            InitializeComponent(); 
        }

        private DataTemplate ChildTemplate;
        private ContentPresenter ParentTemplate;
        private DataTable dt;

        private void UserControl_Loaded(object sender, RoutedEventArgs e)
        {
            dt = new DataTable();
            dt.Columns.Add("attr1", typeof(string));
            dt.Columns.Add("attr2", typeof(string));
            dt.Columns.Add("attr3", typeof(string));
            System.Windows.Forms.DataGridView gw1 = ChildTemplate.FindName("gridView", ParentTemplate) as System.Windows.Forms.DataGridView;
            gw1.DataSource = dt;
        }

        //find element in visual tree
        private childItem FindVisualChild<childitem>(DependencyObject obj) where childItem : DependencyObject
        {
            for (int i = 0; i < VisualTreeHelper.GetChildrenCount(obj); i++)
            {
                DependencyObject child = VisualTreeHelper.GetChild(obj, i);
                if (child != null && child is childItem)
                    return (childItem)child;
                else
                {
                    childItem childOfChild = FindVisualChild<childitem>(child);
                    if (childOfChild != null)
                        return childOfChild;
                }
            }
            return null;
        }

        private void gridView_SelectionChanged(object sender, EventArgs e)
        {
            this.ContentTemplate = FindResource("ThisTemplate") as DataTemplate;
            ChildTemplate = FindResource("ThisTemplate") as DataTemplate;
            ParentTemplate = FindVisualChild<contentpresenter>(This);
        }

        private void button1_Click(object sender, RoutedEventArgs e)
        {
            this.ContentTemplate = FindResource("ThisTemplate") as DataTemplate;
        }

        private void button1_ClickT1(object sender, RoutedEventArgs e)
        {
            this.ContentTemplate = FindResource("SecondTemplate") as DataTemplate;
        }
    }
} 
</contentpresenter></childitem></childitem>

Czechtim2 wrote:

I didn´t know about that Loaded event handler in WindowsFormsHost.

Czechtim2 wrote:

when I set DataTemplate as ContentTemplate (this.ContentTemplate = FindResource("PresentationTemplate") as DataTemplate; ), that elements in DataTemplate can be considered as visual elements or can´t?

Mark Salsbery
Microsoft MVP - Visual C++