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WPF: Selection enter open and well take over with Button Elements

 

 

This example shows that we open a WPF element a selection as a window and a selection is made from it.

The selection then adds a button to the inside of the first caller

 

 

 

Call pop-up

The window is created and displayed via a new window (..).

The trick here is that as a window (argument) the caller is handed over.

 

private void Panel_row_1_col_1_MouseUp(object sender, MouseButtonEventArgs e)

        {

            Border panel = sender as Border;

            Window_Select popup = new Window_Select(panel);

            popup.ShowDialog();

        }

 

 

Aufruf

 

Trick im Popup-Window

The trick here is that in the window that is called, a call method of the same name () is created, which contains a WPF element as a parameter.

This allows you to give a parameter to a window when you create

 

        public Window_Select(Border srcPanel)

        {

            //< get caller_Element >

            _srcPanel = srcPanel;

            //</ get caller_Element >

 

            InitializeComponent();

        }

 

 

 

Take over selection

If the selection is selected, then the call item held in memory is addressed directly.

Since the calling element, like here, a border item has been adopted as a Windows (source argument), it can be used here.

Here is in the element with. Child placed in the calling element a button.

 

Button btn = new Button();

btn.Background = new SolidColorBrush(Colors.Green);

 

_srcPanel.Child = btn;

 

 

Then the window becomes geschlossen

 

this.Close();

 

 

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.Shapes;

 

namespace Demo_InsertElement

{

    /// <summary>

    /// Interaction logic for Window_Select.xaml

    /// </summary>

    public partial class Window_Select : Window

    {

        private Border _srcPanel;

 

        #region  Form

        //=============< region: Form >=============

        public Window_Select(Border srcPanel)

        {

            //< get caller_Element >

            _srcPanel = srcPanel;

            //</ get caller_Element >

 

            InitializeComponent();

        }

        //=============</ region: Form >=============

        #endregion

 

        #region  Buttons

        //=============< region: Buttons >=============

        private void BtnRed_Click(object sender, RoutedEventArgs e)

        {

            //------------< BtnRed_Click() >------------

            //< create element >

            Button btn = new Button();

            btn.Background = new SolidColorBrush(Colors.Red);

            //</ create element >

            

            //< element into caller >

            //*adds a new element into the caller 

            _srcPanel.Child = btn;

            //</ element into caller >

 

            //< close >

            this.Close();

            //</ close >

            //------------</ BtnRed_Click() >------------

        }

 

        private void BtnGreen_Click(object sender, RoutedEventArgs e)

        {

            Button btn = new Button();

            btn.Background = new SolidColorBrush(Colors.Green);

            _srcPanel.Child = btn;

            this.Close();

        }

        //=============</ region: Buttons >=============

        #endregion

    }

}

 

 

 

XAML

 

Basic window

The base window that opens a pop-up window as a selection.

In this case, the red rectangle of the type Border should open a window.

If the selection window has been opened, then a button should be placed in the border element as an element. The same can, of course, be created for other WPF elements.

Importantly, a caller element opens a selection window

 

<Window x:Class="Demo_InsertElement.MainWindow"

        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:local="clr-namespace:Demo_InsertElement"

        mc:Ignorable="d"

        Title="MainWindow" Height="450" Width="800">

    <Grid>

        <Grid.ColumnDefinitions>

            <ColumnDefinition Width="186*"/>

            <ColumnDefinition Width="53*"/>

            <ColumnDefinition Width="555*"/>

        </Grid.ColumnDefinitions>

        <Grid.RowDefinitions>

            <RowDefinition Height="98*"/>

            <RowDefinition Height="52*"/>

            <RowDefinition Height="269*"/>

        </Grid.RowDefinitions>

        <Border x:Name="panel_row_1_col_1" BorderBrush="Red" BorderThickness="1" Margin="2" 

                Grid.Row="1" Grid.Column="1"  VerticalAlignment="Stretch" HorizontalAlignment="Stretch"  

                MouseUp="Panel_row_1_col_1_MouseUp" Background="#f0f0f0" 

                />

 

    </Grid>

</Window>

 

 

 

 

 

 

The pop-up window

As a selection window for data

A button is selected here in the call window.
It is important that this triggers an event that represents a selection and thus the value can be returned to the WPF caller.

 

 

<Window x:Class="Demo_InsertElement.Window_Select"

        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:local="clr-namespace:Demo_InsertElement"

        mc:Ignorable="d"

        Title="Window_Select" Height="450" Width="800">

    <Grid>

        <Label Content="Select a Button" HorizontalAlignment="Left" Height="46" Margin="44,26,0,0" VerticalAlignment="Top" Width="257"/>

        <Button x:Name="BtnRed" Content="Red" Height="51" Margin="64,69,0,0" Width="89" 

                HorizontalAlignment="Left" VerticalAlignment="Top" 

                Background="Red"  Click="BtnRed_Click"/>

        <Button x:Name="BtnGreen" Content="Green" Height="51" Margin="65,133,0,0" Width="89" 

                HorizontalAlignment="Left" VerticalAlignment="Top" 

                Background="Green" Click="BtnGreen_Click"/>

 

    </Grid>

</Window>

 

 

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