c# - Setting button flat style programmatically

Question

I want to give a button a flat style programmatically when certain conditions occur.

This question shows how I can set a style to a control programmatically, having already defined it in XAML.

This question shows that a flat button style already exists, so it is not necessary to create one in XAML.

ToolBar.ButtonStyleKey returns a ResourceKey, and the corresponding style is not defined in my window (it's in ToolBar). How do I use it in code to set the style programmatically?

Answer 1

作为替代方案，您可以尝试以下操作：

XAML

<Button Name="FlatButton" Width="100" Height="30" Content="Test" />

Code behind

private void Button_Click(object sender, RoutedEventArgs e)
{
    FlatButton.Style = (Style)FindResource(ToolBar.ButtonStyleKey);
}

Answer 2

这是一种有效的解决方法。添加基于ToolBar.ButtonStyleKeyto的样式Window.Resources，如下所示：

<Window.Resources>
    <Style x:Key="MyStyle" BasedOn="{StaticResource {x:Static ToolBar.ButtonStyleKey}}" TargetType="Button" />
</Window.Resources>

然后，在代码中，按照此问题中的第一个链接引用它：

button.Style = this.Resources["MyStyle"] as Style;

我更愿意为此提供一个纯代码解决方案（无 XAML），但这也同样有效。