wpf 后面代码的按钮边框厚度
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Button border thickness from code behind
提问by 91378246
I am very new to wpf, and right now I am working with buttons, and so I want to change buttons border thickness, but from code behind not in XAML, and what I did was next:
我对 wpf 很陌生，现在我正在使用按钮，所以我想更改按钮边框的粗细，但是从后面的代码不在 XAML 中，我接下来要做的是：
var converter = new System.Windows.Media.BrushConverter();
var brush = (Brush)converter.ConvertFromString("#83D744");
btn0.Background = System.Windows.Media.Brushes.Transparent; // This is applied to button
btn0.BorderThickness = new Thickness(1); //Thickness wont apply to button I dont know why
btn0.BorderBrush = brush; //This is also applied to button
回答by 91378246
The default border thickness for Buttons is 1 so nothing will change if you set it to 1.
按钮的默认边框粗细为 1，因此如果将其设置为 1，则不会发生任何变化。
To see a change just set it to something different:
要查看更改，只需将其设置为不同的内容：
button.BorderThickness = new Thickness(1, 1, 1, 3);
回答by Suman Kumar
Since the default button template don't have Border property, More information you can visit: here. So if you want a border around button you have to add your own style, Like:
由于默认按钮模板没有边框属性，更多信息您可以访问：这里。因此，如果您想要按钮周围的边框，则必须添加自己的样式，例如：
<Style x:Key="ButtonStyle" TargetType="{x:Type Button}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Button}">
<Border x:Name="border" BorderBrush="Transparent" BorderThickness="0" Background="Transparent">
<ContentPresenter HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" Margin="{TemplateBinding Padding}" RecognizesAccessKey="True" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
In above code all properties like: BorderBrush, BorderThicknessand Backgroundare hard coded and you can't set these property from code behind. if you want to do so you have to write style like:
在上面的代码中像所有的属性：BorderBrush，BorderThickness和Background被硬编码的，不能设置从后面的代码，这些属性。如果你想这样做，你必须编写如下风格：
<Style x:Key="ButtonStyle" TargetType="{x:Type Button}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Button}">
<Border x:Name="border" BorderBrush="{TemplateBinding Property=BorderBrush}" BorderThickness="{TemplateBinding Property=BorderThickness}" Background="{TemplateBinding Property=Background}">
<ContentPresenter HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" Margin="{TemplateBinding Padding}" RecognizesAccessKey="True" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
And apply this style like:
并应用这种风格，如：
<Grid>
<Button Name="btnNew" Style="{StaticResource ButtonStyle }" Width="200" Height="50" Click="Button_Click" />
</Grid>
After that you can change those property of Border as your wish, For example:
之后，您可以根据需要更改 Border 的那些属性，例如：
btnNew.Background = Brushes.Black;
btnNew.BorderThickness = new Thickness(4, 5, 7, 9);
btnNew.BorderBrush = Brushes.Red;
