Control Style in WPF

</Style>
<Style x:Key="SmallStyle">
<Setter Property="Control.FontSize" Value="5" />
<Setter Property="Control.FontWeight" Value="Normal" />
<Setter Property="Control.BorderThickness" Value="2" />
</Style>
</Window.Resources>
<Grid>
<Button
Style="{StaticResource SmallStyle }"
VerticalAlignment="Top"
HorizontalAlignment="Left"
Grid.Column="0"
Grid.ColumnSpan="1"
Grid.Row="0"
Grid.RowSpan="1"
Margin="43,61,0,0"
Width="75"
Height="23"
Name="btnClick">Click
</Button>
</Grid>
</Window>

In this example we set the Style Attribute of the Button to SmallStyle:

Style="{StaticResource SmallStyle }"

Here is the output:



And if we set it to BoldStyle:

Style="{StaticResource BoldStyle }"



We can also set it programmatically:

Here we first define a Click Event on the Button Control:

<Grid>
<Button
Style="{StaticResource BoldStyle }"
VerticalAlignment="Top"
HorizontalAlignment="Left"
Grid.Column="0"
Grid.ColumnSpan="1"
Grid.Row="0"
Grid.RowSpan="1"
Margin="43,61,0,0"
Width="75"
Height="23"
Name="btnClick" Click="MyFirstClick">Click
</Button>
</Grid>

And then we write the EventHandler in the .cs page:

public partial class Window1 : Window
{
public Window1()
{
InitializeComponent();
}
private void MyFirstClick(object sender, RoutedEventArgs e)
{
btnClick.Style = (Style)FindResource("BoldStyle");
}
}

To change the style SmallStyle To BoldStyle programmatically:



After click: