PropertyCondition Class

Reference

Definition

Namespace:: Microsoft.Maui.Controls

Assembly:: Microsoft.Maui.Controls.dll

Source:: PropertyCondition.cs

Source:: PropertyCondition.cs

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Class that represents a value comparison against a property on the control that contains the enclosing MultiTrigger.

public ref class PropertyCondition sealed : Microsoft::Maui::Controls::Condition, Microsoft::Maui::Controls::Xaml::IValueProvider

[Microsoft.Maui.Controls.Xaml.AcceptEmptyServiceProvider]
public sealed class PropertyCondition : Microsoft.Maui.Controls.Condition, Microsoft.Maui.Controls.Xaml.IValueProvider

[<Microsoft.Maui.Controls.Xaml.AcceptEmptyServiceProvider>]
type PropertyCondition = class
    inherit Condition
    interface IValueProvider

Public NotInheritable Class PropertyCondition
Inherits Condition
Implements IValueProvider

Inheritance: Object

Condition
PropertyCondition

Attributes: AcceptEmptyServiceProviderAttribute

Implements: IValueProvider

Remarks

The PropertyCondition class is suitable for checking property values on the control that contains the MultiTrigger that contains it. To check values on other controls, developers can use the BindingCondition class, in addition to any property conditions in the trigger list.

The XML example below creates a property condition within a surrounding MultiTrigger within a TextCell that turns the text green when the secret is typed. The code is turned back to the default color if the user then edits the secret. (Typically, a MultiTrigger would have more than one condition; this example is simplified for clarity.)

<Entry Placeholder="Type the secret!"
       VerticalOptions="Center"
       HorizontalOptions="Center">
<Entry.Triggers>
<MultiTrigger TargetType="Entry" >
<MultiTrigger.Conditions>
<PropertyCondition Property="Text"
                                     Value="The text color is green" />
</MultiTrigger.Conditions>
<Setter Property="TextColor"
                  Value="Color.Green" />
</MultiTrigger>
</Entry.Triggers>
</Entry>

Constructors

PropertyCondition()

Initializes a new PropertyCondition instance.

Properties

Property	Gets or sets the property against which the Value property will be compared.
Value	The binding value that satisfies the condition.

Explicit Interface Implementations

IValueProvider.ProvideValue(IServiceProvider)

Applies to

共用方式為