How to set Alignment of a textbox.Text in wpf via INotify-Property?

Question

My WPF Application code generates panels on function call defined in .cs file. There is ItemControl used in code to generates these Panels . I want to to change text Alignment of text of Textbox defined in selected panel via it's button. Query: I clicked button and alignment of select panel TextBox change from left to rightand from right to left, Now implementation of Alignment sets if select slider to move. Here code is:

XAML FILE

<ItemsControl x:Name="lstItemsClassM">
  <ItemsControl.ItemTemplate>
    <DataTemplate>
      <StackPanel Orientation="Vertical">
        <Button Content="{Binding Alignment, Mode=TwoWay}"
                Click="Button_Click"
                Tag="{Binding PKId}" />
        <TextBox x:Name="txtText"
                 Width="300"
                 Height="100"
                 Text="{Binding Text, Mode=TwoWay}"
                 FontSize="{Binding FontSize, Mode=OneWay}"
                 TextAlignment="{Binding Alignment, Mode=OneWay}" />
        <Slider Minimum="10"
                Maximum="30"
                Value="{Binding FontSize, Mode=TwoWay}" />
      </StackPanel>
    </DataTemplate>
  </ItemsControl.ItemTemplate>

.CS FILE

 protected ObservableCollection<ClassM> texts = new ObservableCollection<ClassM>();
    int dv;
    public Window2()
    {
        InitializeComponent();
        dv=1;
        texts.Add(new ClassM() { PKId=dv, Text = "Test 1" });
        dv=2;
        texts.Add(new ClassM() { PKId=dv, Text = "Test 2" });

        lstItemsClassM.ItemsSource = texts;
    }

    private void Button_Click(object sender, RoutedEventArgs e)
    {
        var myValue = ((Button)sender).Tag;
           foreach (var f in texts.ToList())
            {
                if (f.PKId.ToString() == myValue.ToString())
                {
                    f._alignment = "Right";
                    MessageBox.Show(f._alignment);
                }
            }
    }    
}


public class ClassM : INotifyPropertyChanged
{
    private string _id;
    private int _pkid;
    private string _text;
    private double _fontSize = 10;
    public string _alignment="Left";

    public int PKId
    {
        get { return _pkid; }
        set
        {
            if (value != _pkid)
            {
                _pkid = value;
                NotifyPropertyChanged();
            }
        }
    }
    public string Id
    {
        get { return _id; }
        set
        {
            if (value != _id)
            {
                _id = value;
                NotifyPropertyChanged();
            }
        }
    }
    public string Text
    {
        get { return _text; }
        set
        {
            if (value != _text)
            {
                _text = value;
                NotifyPropertyChanged();
            }
        }
    }
    public double FontSize
    {
        get { return _fontSize; }
        set
        {
            if (value != _fontSize)
            {
                _fontSize = value;
                NotifyPropertyChanged();
            }
        }
    }
    public string Alignment
    {
        get { return _alignment; }
        set
        {
            if (value != _alignment)
            {
                _alignment = value;
                NotifyPropertyChanged();
            }
        }
    }

    public event PropertyChangedEventHandler PropertyChanged;

    protected void NotifyPropertyChanged(String propertyName = "")
    {
        if (PropertyChanged != null)
        {
            PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
        }
    }
}

}

Alignment means Textbox.Text Alignment left to right or right to left

Answer 1

The best solution is use RichTextBox to align your text. If you wanna i could sugest one implementation to read a literal string and format.