TextBoxSelectionChangingEventArgs 类

定义

命名空间:

Windows.UI.Xaml.Controls

提供 TextBox.SelectionChanging 事件的事件数据。

public ref class TextBoxSelectionChangingEventArgs sealed

/// [Windows.Foundation.Metadata.ContractVersion(Windows.Foundation.UniversalApiContract, 458752)]
/// [Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
class TextBoxSelectionChangingEventArgs final

[Windows.Foundation.Metadata.ContractVersion(typeof(Windows.Foundation.UniversalApiContract), 458752)]
[Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
public sealed class TextBoxSelectionChangingEventArgs

Public NotInheritable Class TextBoxSelectionChangingEventArgs

继承

Object Platform::Object IInspectable TextBoxSelectionChangingEventArgs

属性

ContractVersionAttribute MarshalingBehaviorAttribute

Windows 要求

设备系列	Windows 10, version 1809 (在 10.0.17763.0 中引入)
API contract	Windows.Foundation.UniversalApiContract (在 v7.0 中引入)

注解

此类的实例作为参数传递给 SelectionChanging 事件处理程序。

属性

Cancel	获取或设置一个值，该值指示是否应取消选择操作。
SelectionLength	获取文本选择的长度。
SelectionStart	获取文本选择的起始索引。