Tengo la siguiente clase, y quiero pasar la variable de texto como RoutedEventArgs.¿Pasar la variable con RoutedEventArgs?
public class CloseableTabItem : TabItem
{
String text;
public CloseableTabItem()
{
//This style is defined in themes\generic.xaml
DefaultStyleKeyProperty.OverrideMetadata(typeof(CloseableTabItem),
new FrameworkPropertyMetadata(typeof(CloseableTabItem)));
}
public CloseableTabItem(String incomingText)
{
//This style is defined in themes\generic.xaml
DefaultStyleKeyProperty.OverrideMetadata(typeof(CloseableTabItem),
new FrameworkPropertyMetadata(typeof(CloseableTabItem)));
text = incomingText;
}
public static readonly RoutedEvent CloseTabEvent =
EventManager.RegisterRoutedEvent("CloseTab", RoutingStrategy.Bubble,
typeof(RoutedEventHandler), typeof(CloseableTabItem));
public event RoutedEventHandler CloseTab
{
add { AddHandler(CloseTabEvent, value); }
remove { RemoveHandler(CloseTabEvent, value); }
}
public override void OnApplyTemplate()
{
base.OnApplyTemplate();
Button closeButton = base.GetTemplateChild("PART_Close") as Button;
if (closeButton != null)
closeButton.Click += new System.Windows.RoutedEventHandler(closeButton_Click);
}
void closeButton_Click(object sender, System.Windows.RoutedEventArgs e)
{
this.RaiseEvent(new RoutedEventArgs(CloseTabEvent, this));
}
}
este es el código de Window1 que es la clase principal en una aplicación WPF
public partial class Window1 : Window
{
public static Window1 myWindow1;
public Window1()
{
myWindow1 = this;
InitializeComponent();
this.AddHandler(CloseableTabItem.CloseTabEvent, new RoutedEventHandler(this.CloseTab));
}
private void CloseTab(object source, RoutedEventArgs args)
{
TabItem tabItem = args.Source as TabItem;
if (tabItem != null)
{
TabControl tabControl = tabItem.Parent as TabControl;
if (tabControl != null)
tabControl.Items.Remove(tabItem);
}
}
private void btnAdd_Click(object sender, RoutedEventArgs e)
{
CloseableTabItem tabItem = new CloseableTabItem("THIS IS A TEST");
MainTab.Items.Add(tabItem);
}
}
Quiero ser capaz de imprimir el valor de la "cadena de texto" en el método CloseTab. ¿Cómo puedo hacer que se pase el "Texto de cadena" con los argumentos de RoutedEventArgs?
¡Atentamente!
EDITAR
he hecho algunos cambios en el proyecto y aquí está el código
ClosableTabItem.cs
namespace SampleTabControl
{
public class CloseableTabItem : TabItem
{
String text;
public delegate void TabsEventHandler(object sender, TabsEventArgs e);
public CloseableTabItem()
{
//This style is defined in themes\generic.xaml
DefaultStyleKeyProperty.OverrideMetadata(typeof(CloseableTabItem),
new FrameworkPropertyMetadata(typeof(CloseableTabItem)));
}
public CloseableTabItem(String incomingText)
{
//This style is defined in themes\generic.xaml
DefaultStyleKeyProperty.OverrideMetadata(typeof(CloseableTabItem),
new FrameworkPropertyMetadata(typeof(CloseableTabItem)));
this.text = incomingText;
}
public static readonly RoutedEvent CloseTabsEvent = EventManager.RegisterRoutedEvent("CloseTab", RoutingStrategy.Bubble, typeof(TabsEventHandler), typeof(CloseableTabItem));
public event TabsEventHandler CloseTab
{
add { AddHandler(CloseTabsEvent, value); }
remove { RemoveHandler(CloseTabsEvent, value); }
}
public override void OnApplyTemplate()
{
base.OnApplyTemplate();
Button closeButton = base.GetTemplateChild("PART_Close") as Button;
if (closeButton != null)
closeButton.Click += new System.Windows.RoutedEventHandler(closeButton_Click);
}
void closeButton_Click(object sender, System.Windows.RoutedEventArgs e)
{
TabsEventArgs args = new TabsEventArgs(CloseTabsEvent, text);
RaiseEvent(args);
}
}
}
TabsEventArgs.cs
public class TabsEventArgs : RoutedEventArgs
{
private readonly string text;
public string Text
{
get { return text; }
}
public TabsEventArgs(RoutedEvent routedEvent, string text) : base(routedEvent)
{
this.text = text;
}
}
Window1.cs
public partial class Window1 : Window
{
public static Window1 myWindow1;
public Window1()
{
myWindow1 = this;
InitializeComponent();
this.AddHandler(CloseableTabItem.CloseTabsEvent, new RoutedEventHandler(this.CloseTab));
}
private void CloseTab(object source, RoutedEventArgs args)
{
TabItem tabItem = args.Source as TabItem;
if (tabItem != null)
{
TabControl tabControl = tabItem.Parent as TabControl;
if (tabControl != null)
tabControl.Items.Remove(tabItem);
}
}
private void btnAdd_Click(object sender, RoutedEventArgs e)
{
CloseableTabItem tabItem = new CloseableTabItem("THIS IS A TEST");
MainTab.Items.Add(tabItem);
}
}
Después de hacer los cambios (al abrir más de 1 pestaña la aplicación se bloquea), ¿cómo acceder a la "cadena de texto" en el método CloseTab en clase Window1?
Gracias, realmente aprecio Haga esta pregunta y las modificaciones/adiciones que haya realizado. – wonea