Question

I have several Buttons on screen. On the click of one Button rest all other Buttons should be disabled. Is there a way to create one single method and set the enabling and disabling all Buttons instead of enabling and disabling individual Buttons.

Answer 1

This method assumes that the Buttons are on the same Grid, it reverses the Enabled state of every button except of the one doing the clicking.

MainWindow.xaml

<Window x:Class="WpfApplication1.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="350" Width="525">
    <Grid>
        <Button Content="Button" Height="23" HorizontalAlignment="Left" Margin="10,10,0,0" Name="button1" VerticalAlignment="Top" Width="75" Click="button_Click"  />
        <Button Content="Button" Height="23" HorizontalAlignment="Left" Margin="10,43,0,0" Name="button2" VerticalAlignment="Top" Width="75" Click="button_Click" />
        <Button Content="Button" Height="23" HorizontalAlignment="Left" Margin="10,76,0,0" Name="button3" VerticalAlignment="Top" Width="75" Click="button_Click" />
        <Button Content="Button" Height="23" HorizontalAlignment="Left" Margin="10,109,0,0" Name="button4" VerticalAlignment="Top" Width="75" Click="button_Click" />
        <Button Content="Button" Height="23" HorizontalAlignment="Left" Margin="10,142,0,0" Name="button5" VerticalAlignment="Top" Width="75" Click="button_Click" />
    </Grid>
</Window>

MainWindow.xaml.cs

private void button_Click(object sender, RoutedEventArgs e)
{
    Button btn = (Button)sender;
    foreach (FrameworkElement  item in ((Panel)btn.Parent).Children )
    {
        if (item is Button)
        {
            if (btn.Name != item.Name)
                item.IsEnabled = !item.IsEnabled;
        }
    }
}