Contentpresenter Foreground, Font-Size, Font-Family Change inside Style (WPF / XAML)

To change Font Size, Foreground or Font Family

1) Directly Assign Property to Content-presenter 
 - XAML

<ContentPresenter TextBlock.FontFamily="Tahoma"
                  TextBlock.FontWeight="Bold"

                  TextBlock.Foreground="Red"
                  VerticalAlignment="Center"
                  RecognizesAccessKey="True" />

  OR

2)Adding Setter To the Style-

                      <Trigger Property="IsSelected" Value="true">
     <Setter Property="TextBlock.Foreground" TargetName="TabHeadetText"     Value="white"/>

     <Setter Property="TextBlock.FontFamily" TargetName="TabHeadetText"     Value="Tahoma"/>
</Trigger>

How to Disable the default Dashed Focus Rectangle on WPF Controls

When a WPF control gains the focus, it displays a dashed box around itself to indicate that it has the focus. In some cases, the focus rectangle can detract from the design of the program.

To disable this box, add the attribute FocusVisualStyle="{x:Null}" to a control.

To re-enable it, set that attribute to a Style of your choice.
example:
<Style x:Key="ButtonStyle" TargetType="{x:Type Button}">
        <Setter Property="FocusVisualStyle" Value="{x:Null}"/>
</Style>

-------- nJoy :-)

RotateTransform Animation with Ease wpf C#

In CS file

using System;

using System.Collections.Generic;

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.Media.Animation;

using System.Windows.Shapes;

namespace simple_animation

{

       /// <summary>

       /// Interaction logic for MainWindow.xaml

       /// </summary>

       public partial class MainWindow : Window

       {

              public MainWindow()

              {

                     this.InitializeComponent();

                     // Insert code required on object creation below this point.

              }

              private void Button_Click(object sender, System.Windows.RoutedEventArgs e)

              {

                     // TODO: Add event handler implementation here.

                     var ease = new PowerEase { EasingMode = EasingMode.EaseOut };

                     //DoubleAnimation(FromValue. ToValue, Duration)

                     DoubleAnimation myanimation = new DoubleAnimation

                             (0, 360, new Duration(TimeSpan.FromSeconds(3)));

                     //Adding Power ease to the animation

                     myanimation.EasingFunction = ease;

           

                     RotateTransform rt = new RotateTransform();

                                 

                     //  "img" is Image added in XAML

                     img.RenderTransform = rt;
                     img.RenderTransformOrigin = new Point(0.5, 0.5);

                     rt.BeginAnimation(RotateTransform.AngleProperty, myanimation );

              }

       }

}

XAML

<Window

                xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

                xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

                x:Class="simple_animation.MainWindow"

                x:Name="Window"

                Title="MainWindow"

                Width="640" Height="480">

                <Grid x:Name="LayoutRoot">

                                <Image x:Name="img" Height="128" Source="sync.png" Stretch="Fill"    VerticalAlignment="Top" Margin="287,68,217,0"/>

                                <Button Content="Button" HorizontalAlignment="Left" Height="49" Margin="24,84,0,0" VerticalAlignment="Top" Width="117" Click="Button_Click"/>

                </Grid>

</Window>

===========================================================================

For animating button width Property

// Animate the Button's Width.
            DoubleAnimation myDoubleAnimation = new DoubleAnimation();
            myDoubleAnimation.From = 75;
            myDoubleAnimation.To = 300;
            myDoubleAnimation.Duration =  new Duration(TimeSpan.FromSeconds(5));
            myDoubleAnimation.AutoReverse = true;
            myDoubleAnimation.RepeatBehavior = RepeatBehavior.Forever;

            // Apply the animation to the button's Width property.
            aButton.BeginAnimation(Button.WidthProperty, myDoubleAnimation);