ContentPage Class
Definition
Important
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A Page that displays a single view.
[Xamarin.Forms.ContentProperty("Content")]
public class ContentPage : Xamarin.Forms.TemplatedPagetype ContentPage = class
inherit TemplatedPage- Inheritance
- Attributes
Remarks
This is a Page displaying a single View, often a container like a StackLayout or ScrollView.
The example below is taken from the App.cs file that is contained in the default "Hello, Forms!" app. It uses a ContentPage to display a label, which is a typical, though basic, use of the ContentPage class.
using System;
using Xamarin.Forms;
namespace ContentPageExample
{
public class App : Application
{
public static Page GetMainPage ()
{
return new ContentPage {
Content = new Label {
Text = "Hello, Forms!",
VerticalOptions = LayoutOptions.CenterAndExpand,
HorizontalOptions = LayoutOptions.CenterAndExpand,
},
};
}
public App ()
{
MainPage = GetMainPage();
}
}
}
The FormsGallery sample, which can be found on the Sample Applications page, has a ContentPageDemoPage.cs file. This file contains a longer and more complicated example.
Constructors
| ContentPage() |
Initializes a new ContentPage instance. |
Fields
| ActionSheetSignalName |
This method is for internal use. (Inherited from Page) |
| AlertSignalName |
This method is for internal use. (Inherited from Page) |
| BusySetSignalName |
This method is for internal use. (Inherited from Page) |
| ContentProperty |
Backing store for the Content property. |
| PromptSignalName | (Inherited from Page) |
Properties
| AnchorX |
Gets or sets the X component of the center point for any transform, relative to the bounds of the element. This is a bindable property. (Inherited from VisualElement) |
| AnchorY |
Gets or sets the Y component of the center point for any transform, relative to the bounds of the element. This is a bindable property. (Inherited from VisualElement) |
| AutomationId |
Gets or sets a value that allows the automation framework to find and interact with this element. (Inherited from Element) |
| Background | (Inherited from VisualElement) |
| BackgroundColor |
Gets or sets the color which will fill the background of a VisualElement. This is a bindable property. (Inherited from VisualElement) |
| BackgroundImage |
Obsolete.
Identifies the image used as a background for the Page. (Inherited from Page) |
| BackgroundImageSource | (Inherited from Page) |
| Batched |
For internal use by the Xamarin.Forms platform. (Inherited from VisualElement) |
| Behaviors |
Gets the list of Behaviors associated to this element. This is a bindable property. (Inherited from VisualElement) |
| BindingContext |
Gets or sets object that contains the properties that will be targeted by the bound properties that belong to this BindableObject. (Inherited from BindableObject) |
| Bounds |
Gets the bounds of the element. (Inherited from VisualElement) |
| class | (Inherited from NavigableElement) |
| ClassId |
Gets or sets a value used to identify a collection of semantically similar elements. (Inherited from Element) |
| Clip | (Inherited from VisualElement) |
| ContainerArea |
For internal use by the Xamarin.Forms platform. (Inherited from Page) |
| Content |
Gets or sets the view that contains the content of the Page. |
| ControlTemplate |
Gets or sets the control template that is used to display content. (Inherited from TemplatedPage) |
| DisableLayout |
For internal use by the Xamarin.Forms platform. (Inherited from VisualElement) |
| Dispatcher | (Inherited from BindableObject) |
| EffectControlProvider |
For internal use by the Xamarin.Forms platform. (Inherited from Element) |
| Effects |
A list of the effects that are applied to this item. (Inherited from Element) |
| FlowDirection |
Gets or sets the layout flow direction. (Inherited from VisualElement) |
| Height |
Gets the current rendered height of this element. This is a read-only bindable property. (Inherited from VisualElement) |
| HeightRequest |
Gets or sets the desired height override of this element. (Inherited from VisualElement) |
| Icon |
Obsolete.
Resource identifier for the Page's associated icon. (Inherited from Page) |
| IconImageSource | (Inherited from Page) |
| Id |
Gets a value that can be used to uniquely identify an element through the run of an application. (Inherited from Element) |
| IgnoresContainerArea |
For internal use by the Xamarin.Forms platform. (Inherited from Page) |
| InputTransparent |
Gets or sets a value indicating whether this element should be involved in the user interaction cycle. This is a bindable property. (Inherited from VisualElement) |
| InternalChildren |
For internal use by the Xamarin.Forms platform. (Inherited from Page) |
| IsBusy |
Marks the Page as busy. This will cause the platform specific global activity indicator to show a busy state. (Inherited from Page) |
| IsEnabled |
Gets or sets a value indicating whether this element is enabled in the user interface. This is a bindable property. (Inherited from VisualElement) |
| IsFocused |
Gets a value indicating whether this element is focused currently. This is a bindable property. (Inherited from VisualElement) |
| IsInNativeLayout |
For internal use by the Xamarin.Forms platform. (Inherited from VisualElement) |
| IsNativeStateConsistent |
For internal use by the Xamarin.Forms platform. (Inherited from VisualElement) |
| IsPlatformEnabled |
For internal use by the Xamarin.Forms platform. (Inherited from VisualElement) |
| IsTabStop |
Gets or sets a value that indicates whether this element is included in tab navigation. This is a bindable property. (Inherited from VisualElement) |
| IsVisible |
Gets or sets a value that determines whether this elements should be part of the visual tree or not. This is a bindable property. (Inherited from VisualElement) |
| LogicalChildren |
For internal use by the Xamarin.Forms platform. (Inherited from Element) |
| MinimumHeightRequest |
Gets or sets a value which overrides the minimum height the element will request during layout. (Inherited from VisualElement) |
| MinimumWidthRequest |
Gets or sets a value which overrides the minimum width the element will request during layout. (Inherited from VisualElement) |
| Navigation | (Inherited from NavigableElement) |
| NavigationProxy | (Inherited from NavigableElement) |
| Opacity |
Gets or sets the opacity value applied to the element when it is rendered. This is a bindable property. (Inherited from VisualElement) |
| Padding |
The space between the content of the Page and it's border. (Inherited from Page) |
| Parent |
Gets or sets the parent element of the element. (Inherited from Element) |
| ParentView |
Obsolete.
Gets the element which is the closest ancestor of this element that is a VisualElement. (Inherited from Element) |
| Platform |
Obsolete.
(Inherited from Element)
|
| RealParent |
For internal use by the Xamarin.Forms platform. (Inherited from Element) |
| Resources |
Gets or sets the local resource dictionary. (Inherited from VisualElement) |
| Rotation |
Gets or sets the rotation (in degrees) about the Z-axis (affine rotation) when the element is rendered. (Inherited from VisualElement) |
| RotationX |
Gets or sets the rotation (in degrees) about the X-axis (perspective rotation) when the element is rendered. (Inherited from VisualElement) |
| RotationY |
Gets or sets the rotation (in degrees) about the Y-axis (perspective rotation) when the element is rendered. (Inherited from VisualElement) |
| Scale |
Gets or sets the scale factor applied to the element. (Inherited from VisualElement) |
| ScaleX |
Gets or sets a scale value to apply to the X direction. (Inherited from VisualElement) |
| ScaleY |
Gets or sets a scale value to apply to the Y direction. (Inherited from VisualElement) |
| Style | (Inherited from NavigableElement) |
| StyleClass | (Inherited from NavigableElement) |
| StyleId |
Gets or sets a user defined value to uniquely identify the element. (Inherited from Element) |
| TabIndex | (Inherited from VisualElement) |
| Title |
The Page's title. (Inherited from Page) |
| ToolbarItems |
A set of ToolbarItems, implemented in a platform-specific manner. (Inherited from Page) |
| TranslationX |
Gets or sets the X translation delta of the element. (Inherited from VisualElement) |
| TranslationY |
Gets or sets the Y translation delta of the element. (Inherited from VisualElement) |
| Triggers |
Gets the list of Trigger associated to this element. This is a bindable property. (Inherited from VisualElement) |
| Visual | (Inherited from VisualElement) |
| Width |
Gets the current rendered width of this element. This is a read-only bindable property. (Inherited from VisualElement) |
| WidthRequest |
Gets or sets the desired width override of this element. (Inherited from VisualElement) |
| X |
Gets the current X position of this element. This is a read-only bindable property. (Inherited from VisualElement) |
| Y |
Gets the current Y position of this element. This is a read-only bindable property. (Inherited from VisualElement) |
Methods
| ApplyBindings() |
Apply the bindings to BindingContext. (Inherited from BindableObject) |
| BatchBegin() |
Signals the start of a batch of changes to the elements properties. (Inherited from VisualElement) |
| BatchCommit() |
Signals the end of a batch of commands to the element and that those commands should now be committed. (Inherited from VisualElement) |
| ChangeVisualState() |
For internal use by the Xamarin.Forms platform. (Inherited from VisualElement) |
| ClearValue(BindableProperty) |
Clears any value set by SetValue for |
| ClearValue(BindablePropertyKey) |
Clears any value set by SetValue for the property that is identified by |
| CoerceValue(BindableProperty) | (Inherited from BindableObject) |
| CoerceValue(BindablePropertyKey) | (Inherited from BindableObject) |
| Descendants() |
For internal use by the Xamarin.Forms platform. (Inherited from Element) |
| DisplayActionSheet(String, String, String, String[]) |
Displays a native platform action sheet, allowing the application user to choose from several buttons. (Inherited from Page) |
| DisplayAlert(String, String, String, String) |
Presents an alert dialog to the application user with an accept and a cancel button. (Inherited from Page) |
| DisplayAlert(String, String, String) |
Presents an alert dialog to the application user with a single cancel button. (Inherited from Page) |
| DisplayPromptAsync(String, String, String, String, String, Int32, Keyboard, String) | (Inherited from Page) |
| DisplayPromptAsync(String, String, String, String, String, Int32, Keyboard) |
Obsolete.
(Inherited from Page)
|
| EffectIsAttached(String) |
For internal use by the Xamarin.Forms platform. (Inherited from Element) |
| FindByName(String) |
Returns the element that has the specified name. (Inherited from Element) |
| Focus() |
Attemps to set focus to this element. (Inherited from VisualElement) |
| ForceLayout() |
Forces the Page to perform a layout pass. (Inherited from Page) |
| GetSizeRequest(Double, Double) |
Obsolete.
Returns the SizeRequest of the element. Calling this method begins the measure pass of a layout cycle. (Inherited from VisualElement) |
| GetTemplateChild(String) | (Inherited from TemplatedPage) |
| GetValue(BindableProperty) |
Returns the value that is contained in the BindableProperty. (Inherited from BindableObject) |
| GetValues(BindableProperty, BindableProperty, BindableProperty) |
Obsolete.
For internal use by the Xamarin.Forms platform. (Inherited from BindableObject) |
| GetValues(BindableProperty, BindableProperty) |
Obsolete.
For internal use by the Xamarin.Forms platform. (Inherited from BindableObject) |
| InvalidateMeasure() |
Method that is called to invalidate the layout of this VisualElement. Raises the MeasureInvalidated event. (Inherited from VisualElement) |
| InvalidateMeasureNonVirtual(InvalidationTrigger) |
For internal use by the Xamarin.Forms platform. (Inherited from VisualElement) |
| IsSet(BindableProperty) |
Returns |
| Layout(Rectangle) |
Updates the bounds of the element during the layout cycle. (Inherited from VisualElement) |
| LayoutChildren(Double, Double, Double, Double) |
Lays out children Elements into the specified area. (Inherited from Page) |
| Measure(Double, Double, MeasureFlags) |
Returns the minimum size that a visual element needs in order to be displayed on the device. (Inherited from VisualElement) |
| NativeSizeChanged() |
For internal use by the Xamarin.Forms platform. (Inherited from VisualElement) |
| On<T>() |
Returns the platform-specific instance of this Page, on which a platform-specific method may be called. (Inherited from Page) |
| OnAppearing() |
When overridden, allows application developers to customize behavior immediately prior to the Page becoming visible. (Inherited from Page) |
| OnApplyTemplate() | (Inherited from TemplatedPage) |
| OnBackButtonPressed() |
Application developers can override this method to provide behavior when the back button is pressed. (Inherited from Page) |
| OnBindingContextChanged() |
Method that is called when the binding context changes. |
| OnChildAdded(Element) |
Application developers can override this method to respond when a child is added. (Inherited from VisualElement) |
| OnChildMeasureInvalidated(Object, EventArgs) |
Indicates that the preferred size of a child Element has changed. (Inherited from Page) |
| OnChildRemoved(Element, Int32) | (Inherited from TemplatedPage) |
| OnChildRemoved(Element) |
Obsolete.
(Inherited from TemplatedPage)
|
| OnChildrenReordered() |
Invoked whenever the ChildrenReordered event is about to be emitted. Implement this method to add class handling for this event. (Inherited from VisualElement) |
| OnDisappearing() |
When overridden, allows the application developer to customize behavior as the Page disappears. (Inherited from Page) |
| OnMeasure(Double, Double) |
Method that is called when a layout measurement happens. (Inherited from VisualElement) |
| OnParentSet() |
Called when the Page's Parent property has changed. (Inherited from Page) |
| OnPropertyChanged(String) |
Method that is called when a bound property is changed. (Inherited from Element) |
| OnPropertyChanging(String) |
Call this method from a child class to notify that a change is going to happen on a property. (Inherited from BindableObject) |
| OnSizeAllocated(Double, Double) |
Indicates that the Page has been assigned a size. (Inherited from Page) |
| OnSizeRequest(Double, Double) |
Obsolete.
This method is called during the measure pass of a layout cycle to get the desired size of an element. (Inherited from VisualElement) |
| OnTabIndexPropertyChanged(Int32, Int32) | (Inherited from VisualElement) |
| OnTabStopPropertyChanged(Boolean, Boolean) | (Inherited from VisualElement) |
| RemoveBinding(BindableProperty) |
Removes a previously set binding. (Inherited from BindableObject) |
| RemoveDynamicResource(BindableProperty) |
Removes a previously set dynamic resource (Inherited from Element) |
| SendAppearing() |
For internal use by the Xamarin.Forms platform. (Inherited from Page) |
| SendBackButtonPressed() |
Calls OnBackButtonPressed(). (Inherited from Page) |
| SendDisappearing() |
For internal use by the Xamarin.Forms platform. (Inherited from Page) |
| SetBinding(BindableProperty, BindingBase) |
Assigns a binding to a property. (Inherited from BindableObject) |
| SetDynamicResource(BindableProperty, String) |
Sets the BindableProperty property of this element to be updated via the DynamicResource with the provided key. (Inherited from Element) |
| SetValue(BindableProperty, Object) |
Sets the value of the specified property. (Inherited from BindableObject) |
| SetValue(BindablePropertyKey, Object) |
Sets the value of the propertyKey. (Inherited from BindableObject) |
| SetValueCore(BindableProperty, Object, SetValueFlags) |
For internal use by the Xamarin.Forms platform. (Inherited from BindableObject) |
| SetValueFromRenderer(BindableProperty, Object) |
For internal use by the Xamarin.Forms platform. (Inherited from Element) |
| SetValueFromRenderer(BindablePropertyKey, Object) |
For internal use by the Xamarin.Forms platform. (Inherited from Element) |
| SizeAllocated(Double, Double) |
SizeAllocated is called during a layout cycle to signal the start of a sub-tree layout. (Inherited from VisualElement) |
| TabIndexDefaultValueCreator() | (Inherited from VisualElement) |
| TabStopDefaultValueCreator() | (Inherited from VisualElement) |
| UnapplyBindings() |
Unapplies all previously set bindings. (Inherited from BindableObject) |
| Unfocus() |
Unsets focus to this element. (Inherited from VisualElement) |
| UpdateChildrenLayout() |
Requests that the children Elements of the Page update their layouts. (Inherited from Page) |
Events
| Appearing |
Indicates that the Page is about to appear. (Inherited from Page) |
| BatchCommitted |
For internal use by the Xamarin.Forms platform. (Inherited from VisualElement) |
| BindingContextChanged |
Raised whenever the BindingContext property changes. (Inherited from BindableObject) |
| ChildAdded |
Occurs whenever a child element is added to the element. (Inherited from Element) |
| ChildRemoved |
Occurs whenever a child element is removed from the element. (Inherited from Element) |
| ChildrenReordered |
Occurs when the Children of a VisualElement have been re-ordered. (Inherited from VisualElement) |
| DescendantAdded |
Occurs whenever a child element is added to the elements subtree. (Inherited from Element) |
| DescendantRemoved |
Occurs whenever a child element is removed from the elements subtree. (Inherited from Element) |
| Disappearing |
Indicates that the Page is about to cease displaying. (Inherited from Page) |
| FocusChangeRequested |
For internal use by the Xamarin.Forms platform. (Inherited from VisualElement) |
| Focused |
Occurs when the element receives focus. (Inherited from VisualElement) |
| LayoutChanged |
Raised when the layout of the Page has changed. (Inherited from Page) |
| MeasureInvalidated |
Event that is raised when the layout of a visual element is invalidated. (Inherited from VisualElement) |
| PlatformSet |
Obsolete.
(Inherited from Element)
|
| PropertyChanged |
Raised when a property has changed. (Inherited from BindableObject) |
| PropertyChanging |
Raised when a property is about to change. (Inherited from BindableObject) |
| SizeChanged |
Occurs when either the Width or the Height properties change value on this element. (Inherited from VisualElement) |
| Unfocused |
Occurs when the element loses focus. (Inherited from VisualElement) |
Explicit Interface Implementations
| IDynamicResourceHandler.SetDynamicResource(BindableProperty, String) |
For internal use by the Xamarin.Forms platform. (Inherited from BindableObject) |
| IElementController.SetValueFromRenderer(BindableProperty, Object) |
For internal use by the Xamarin.Forms platform. (Inherited from Element) |
| INameScope.RegisterName(String, Object) |
For internal use only. (Inherited from Element) |
| IVisualElementController.EffectiveFlowDirection |
Gets the effective visual flow direction for the element on the platform, taking into account the locale and logical flow settings. (Inherited from VisualElement) |
| IVisualElementController.InvalidateMeasure(InvalidationTrigger) |
This method is for internal use. (Inherited from VisualElement) |