我在Generic.xaml文件中創建一個自定義的控制按鈕和CustomControl.cs[C# file for custom control button]
創建點擊路由事件,當我改變使用自定義控制的基本元素屬性在MainWidow.cs[C# file for implementing the custom library]
文件中定義點擊事件,以便其按鈕點擊時其背景屬性會發生變化。XAML:如何通過路由事件
我面對的問題是「按鈕單擊」其背景屬性應該改變,但它不是。
MainWindow.xaml
<Window x:Class="my_ToolBox.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:ravi="clr-namespace:my_ToolBox"
Title="MainWindow" Height="350" Width="525">
<Grid>
<ravi:Button_Primary Text="Primary" x:Name="Primary_button"></ravi:Button_Primary>
</Grid></Window>
MainWindow.cs
namespace my_ToolBox
{
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
Primary_button.onclick+=Primary_button_onclick;
}
private static void Primary_button_onclick(object sender, RoutedEventArgs e)
{
MessageBox.Show("Hello robins");
Button_Primary btn = new Button_Primary();
btn.Background = new SolidColorBrush(Color.fromRgb(0,0,0));
}
}
}
Generic.xaml
<Style TargetType="{x:Type local:Button_Primary}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type local:Button_Primary}">
<Border Background="{TemplateBinding Background}"
BorderBrush="{TemplateBinding BorderBrush}"
BorderThickness="{TemplateBinding BorderThickness}"
>
<Button Height="38" Width="86" Background="#428bca" BorderBrush="#428bca" BorderThickness="0" Content="{TemplateBinding Text}" FontSize="14" Foreground="white" FontFamily="Segoe UI" x:Name="Primary_button">
</Button>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
CustomControl.cs
namespace my_ToolBox
{
public class Button_Primary : Control
{
private Button clickbutton;
public static readonly RoutedEvent onclickevent = EventManager.RegisterRoutedEvent("onclick", RoutingStrategy.Direct, typeof(RoutedEventHandler), typeof(Button_Primary));
static Button_Primary()
{
DefaultStyleKeyProperty.OverrideMetadata(typeof(Button_Primary), new FrameworkPropertyMetadata(typeof(Button_Primary)));
}
public override void OnApplyTemplate()
{
base.OnApplyTemplate();
clickbutton = GetTemplateChild("Primary_button") as Button;
if(clickbutton!=null) clickbutton.Click+=clickbutton_Click;
}
public event RoutedEventHandler onclick
{
add
{
AddHandler(onclickevent, value);
}
remove
{
RemoveHandler(onclickevent, value);
}
}
private void clickbutton_Click(object sender, RoutedEventArgs e)
{
RaiseEvent(new RoutedEventArgs(onclickevent));
}
}
}
'Primary_button_onclick'處理程序是否被調用? – Sheridan
@Sheridan是消息框顯示,但背景屬性仍然保持不變。 –