gtk-sharp2.12.0.0Gtk# is thread aware, but not thread safe; See the Gtk# Thread Programming for details.A that allows a scrollable view of its child when added to a .To scroll correctly, a ordinarily requires explicit support from the that will be scrolled. However, a Viewport adds scrolling capabilities to an arbitrary child widget. For example, you can add a collection of widgets to a container. By simply placing the in a Viewport, you need only add the Viewport to a to visually scroll the contents of your Table.The "model" of this widget consists of horizontal and vertical objects. These do not need to be explicitly set to use the Viewport. Packing a child widget as demonstrated in the example, below, is all that is required.The appearance of the Viewport can be adjusted using the property.The following example creates a in a Viewport. When placed in a small , the widgets can be scrolled.
namespace GtkSamples {
using Gtk;
using System;
public class ViewportApp {
public static ScrolledWindow CreateViewport()
{
ScrolledWindow scroller = new ScrolledWindow();
Viewport viewer = new Viewport();
Table widgets = new Table(1, 2, false);
widgets.Attach(new Entry("This is example Entry 1"), 0, 1, 0, 1);
widgets.Attach(new Entry("This is example Entry 2"), 1, 2, 0, 1);
// Place the widgets in a Viewport, and the Viewport in a ScrolledWindow
viewer.Add(widgets);
scroller.Add(viewer);
return scroller;
}
public static int Main (string[] args)
{
Application.Init ();
Window win = new Window ("Viewport Tester");
win.SetDefaultSize (180, 50);
win.DeleteEvent += new DeleteEventHandler (Window_Delete);
ScrolledWindow scroller = CreateViewport();
win.Add (scroller);
win.ShowAll ();
Application.Run ();
return 0;
}
static void Window_Delete (object obj, DeleteEventArgs args)
{
Application.Quit ();
args.RetVal = true;
}
}
}
Gtk.BinConstructorInternal constructor
Pointer to the C object.
This is an internal constructor, and should not be used by user code.ConstructorCreates a new Viewport with the specified horizontal and vertical Adjustments.
An to model horizontal viewing.
An to model vertical viewing.
PropertyGtk.AdjustmentManage the horizontal model.The current state of the horizontal modelGLib.Property("hadjustment")PropertyGtk.AdjustmentManage the vertical model.The current state of the vertical model.GLib.Property("vadjustment")PropertyGtk.ShadowTypeManage the shadow style surrounding the Viewport contents.The current shadow style surrounding the child widget.GLib.Property("shadow-type")EventGtk.ScrollAdjustmentsSetHandlerThis event is raised when the or properties are set.GLib.Signal("set_scroll_adjustments")ConstructorThe main way to create a Viewport.Horizontal and vertical objects are automatically created.PropertyGLib.GTypeGType Property.a Returns the native value for .MethodSystem.VoidDefault handler for the event.
a
a Override this method in a subclass to provide a default handler for the event.ConstructorProtected Constructor.
a Chain to this constructor if you have manually registered a native value for your subclass.System.Obsolete