UI Automation Support for the Text Control Type
Observação
Esta documentação destina.Os desenvolvedores do NET Framework que desejam usar o gerenciado UI Automation classes definidas na System.Windows.Automation namespace.As informações mais recentes sobre UI Automation, consulte API de automação do Windows: Automação da interface do usuário.
Este tópico fornece informações sobre UI Automation suporte para o texto o tipo de controle. In UI Automation, a control type is a set of conditions that a control must meet in order to use the ControlTypeProperty property. As condições incluem as diretrizes específicas para UI Automation estrutura de árvore, UI Automation os valores de propriedade e padrões de controle.
Text controls are the basic user interface item that represents a piece of text on the screen.
The following sections define the required UI Automation tree structure, properties, control patterns, and events for the Text control type. The UI Automation requirements apply to all text controls, whether Windows Presentation Foundation (WPF), Win32, or Windows Forms.
Este tópico contém as seguintes seções.
- Required UI Automation Tree Structure
- Required UI Automation Properties
- Required UI Automation Control Patterns
- Required UI Automation Events
- Tópicos relacionados
Required UI Automation Tree Structure
The following table depicts the control view and the content view of the UI Automation tree that pertains to text controls and describes what can be contained in each view. For more information on the UI Automation tree, see Visão geral da árvore de automação de interface do usuário.
Control View |
Content View |
|---|---|
Text |
Text (if content) |
A text control can be used alone as a label or as static text on a form. It can also be contained within the structure of a:
ListItem
TreeItem
DataItem
Controles de texto não podem estar no modo de exibição de conteúdo do UI Automation árvore porque muitas vezes, o texto é exibido através do NameProperty de outro controle. For example the text that is used to label a Combo Box control is exposed through the control's NameProperty value. Because the Combo Box control is in the content view of the UI Automation Tree, it is not necessary for the text control to be there. Text controls always have 0 children in the content view
Required UI Automation Properties
The following table lists the UI Automation properties whose value or definition is especially relevant to text controls. For more information on UI Automation properties, see UI Automation Properties for Clients.
UI Automation Property |
Value |
Notes |
|---|---|---|
See notes. |
The value of this property needs to be unique across all controls in an application. |
|
See notes. |
The outermost rectangle that contains the whole control. |
|
See notes. |
Supported if there is a bounding rectangle. If not every point within the bounding rectangle is clickable, and you perform specialized hit testing, then override and provide a clickable point. |
|
See notes. |
If the control can receive keyboard focus, it must support this property. |
|
See notes. |
The text bar control's name is always the txt that it displays. |
|
Null |
Text controls do not have a static text label. |
|
Text |
This value is the same for all UI frameworks. |
|
"text" |
Localized string corresponding to the text control type. |
|
Depends |
The text control will be content if it contains information not exposed in another control's NameProperty. |
|
True |
The text control must always be a control. |
Required UI Automation Control Patterns
The following table lists the UI Automation control patterns required to be supported by text controls. For more information on control patterns, see Visão Geral de Padrões de Controle de Automação de Interface de Usuário.
Padrão de controle |
Support |
Notes |
|---|---|---|
Never |
Text never supports ValuePattern. If the text is editable, this it is the Edit control type. |
|
Depends |
Texto deve suportar o padrão de controle de texto para melhor acessibilidade; No entanto, não é necessário. O padrão de controle de texto é útil quando o texto tem o estilo sofisticado e atributos (por exemplo, cor, negrito e itálico).Depende do framework. |
|
Depends |
If the text element is contained within a Table control, this must be supported. |
|
Depends |
If the text element is contained within a table control, this must be supported. |
Required UI Automation Events
The following table lists the UI Automation events required to be supported by all text controls. For more information about events, see Visão geral sobre eventos de automação de interface do usuário.
UI Automation Event |
Support |
Notes |
|---|---|---|
Required |
None |
|
Required |
None |
|
BoundingRectangleProperty property-changed event. |
Required |
None |
IsOffscreenProperty property-changed event. |
Required |
None |
IsEnabledProperty property-changed event. |
Required |
None |
NameProperty property-changed event. |
Required |
None |
ValueProperty property-changed event. |
Never |
None |
Required |
None |
|
Required |
None |
Consulte também
Referência
Conceitos
Visão Geral dos Tipos de Controle de Automação de Interface do Usuário