title: Blinking button on WPF application
body: <p>My WPF application has a style manager that I have built on blend.</p>
  
  <p>My problem is this: I've got a login button that blinks occasionally and i can't figure out how to remove this behavior.</p>
  
  <p>Here's the style code for my login box:</p>
  
  <pre><code>&lt;Style x:Key="LoginBoxGrid" TargetType="{x:Type Grid}"&gt;
      &lt;Setter Property="Background"&gt;
          &lt;Setter.Value&gt;
              &lt;ImageBrush ImageSource="/Client;component/Assets/images/LoginBox.png" Stretch="None" TileMode="Tile"/&gt;
          &lt;/Setter.Value&gt;
      &lt;/Setter&gt;
  
      &lt;Setter Property="Opacity" Value="0.765"/&gt;
      &lt;Setter Property="Width" Value="411"/&gt;
      &lt;Setter Property="HorizontalAlignment" Value="Left"/&gt;
      &lt;Setter Property="Margin" Value="126,150,0,111"/&gt;
  &lt;/Style&gt;
  &lt;Style x:Key="LoginBoxHeader" TargetType="{x:Type Label}"&gt;
      &lt;Setter Property="Grid.Column" Value="2"/&gt;
      &lt;Setter Property="Margin" Value="-16.183,18.347,0,0"/&gt;
      &lt;Setter Property="Width" Value="64.994"/&gt;
      &lt;Setter Property="FontSize" Value="16"/&gt;
      &lt;Setter Property="FontWeight" Value="Bold"/&gt;
      &lt;Setter Property="FontStyle" Value="Italic"/&gt;
      &lt;Setter Property="Foreground" Value="White"/&gt;
      &lt;Setter Property="VerticalAlignment" Value="Top"/&gt;
      &lt;Setter Property="HorizontalAlignment" Value="Left"/&gt;
      &lt;Setter Property="FontFamily" Value="/Client;component/Assets/Fonts/#Arial Black"/&gt;
  &lt;/Style&gt;
  
  &lt;Style x:Key="LoginBtn" TargetType="{x:Type Button}"&gt;
      &lt;Setter Property="Grid.Column" Value="2"/&gt;
      &lt;Setter Property="Margin" Value="16.6,9.022,9.282,8"/&gt;
      &lt;Setter Property="Grid.Row" Value="4"/&gt;
      &lt;Setter Property="Width" Value="164"/&gt;
      &lt;Setter Property="BorderThickness" Value="0"/&gt;
      &lt;Setter Property="Opacity" Value="0.78"/&gt;
      &lt;Setter Property="IsDefault" Value="True"/&gt;
      &lt;Setter Property="Foreground" Value="White"/&gt;
      &lt;Setter Property="Background"&gt;
          &lt;Setter.Value&gt;
              &lt;ImageBrush ImageSource="/Client;component/Assets/images/LoginBtn.png"/&gt;
          &lt;/Setter.Value&gt;
      &lt;/Setter&gt;
  &lt;/Style&gt;
  </code></pre>
  
  <p>And here's my code for the window:</p>
  
  <pre><code>&lt;Grid Style="{StaticResource LoginBoxGrid}" &gt;
          &lt;Grid.ColumnDefinitions&gt;
              &lt;ColumnDefinition Width="0.127*"/&gt;
              &lt;ColumnDefinition Width="0.326*"/&gt;
              &lt;ColumnDefinition Width="0.462*"/&gt;
              &lt;ColumnDefinition Width="0.085*"/&gt;
          &lt;/Grid.ColumnDefinitions&gt;
          &lt;Grid.RowDefinitions&gt;
              &lt;RowDefinition Height="0.269*"/&gt;
              &lt;RowDefinition Height="0.028*"/&gt;
              &lt;RowDefinition Height="0.256*"/&gt;
              &lt;RowDefinition Height="0.223*"/&gt;
              &lt;RowDefinition Height="0.178*"/&gt;
              &lt;RowDefinition Height="0.046*"/&gt;
          &lt;/Grid.RowDefinitions&gt;
          &lt;Label Content="User Name" Grid.Column="1" Margin="43.986,23.1,8,8" Grid.Row="2" Width="82" BorderThickness="0" FontFamily="Arial" FontWeight="Bold" FontStyle="Italic"/&gt;
          &lt;Label Content="Password" Grid.Column="1" Margin="43.986,15.873,8,8" Grid.Row="3" Width="82" BorderThickness="0" FontFamily="Arial" FontWeight="Bold" FontStyle="Italic"/&gt;
          &lt;PasswordBox Grid.Column="2" Name="PassTb" HorizontalAlignment="Left" Margin="8,18.877,0,8" Grid.Row="3"  Width="172.6" d:LayoutOverrides="Height"/&gt;
          &lt;TextBox Grid.Column="2" Name="UserTb" HorizontalAlignment="Left" Margin="9.282,23.1,0,11.004" Grid.Row="2" TextWrapping="Wrap" Text="TextBox" Width="172.6" d:LayoutOverrides="Height"/&gt;
          &lt;Label Style="{StaticResource LoginBoxHeader}" Content="Login" /&gt;
          &lt;Button Name="LoginBtn"  Style="{StaticResource LoginBtn}"  Content="Login" /&gt;
      &lt;/Grid&gt;
  </code></pre>
  
  <p>The Button I'm talking about is called "LoginBtn", as is its style.</p>
  
  <p>How can I remove that blinking behavior? Thanks in advance.</p>