共用方式為

TextBoxBeforeTextChangingEventArgs 類別

  • 參考

定義

命名空間:
Windows.UI.Xaml.Controls
編輯

提供 TextBox.BeforeTextChanging 事件的事件資料。

public ref class TextBoxBeforeTextChangingEventArgs sealed
/// [Windows.Foundation.Metadata.ContractVersion(Windows.Foundation.UniversalApiContract, 327680)]
/// [Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
/// [Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
class TextBoxBeforeTextChangingEventArgs final
/// [Windows.Foundation.Metadata.ContractVersion(Windows.Foundation.UniversalApiContract, 327680)]
/// [Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
class TextBoxBeforeTextChangingEventArgs final
[Windows.Foundation.Metadata.ContractVersion(typeof(Windows.Foundation.UniversalApiContract), 327680)]
[Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
[Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
public sealed class TextBoxBeforeTextChangingEventArgs
[Windows.Foundation.Metadata.ContractVersion(typeof(Windows.Foundation.UniversalApiContract), 327680)]
[Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
public sealed class TextBoxBeforeTextChangingEventArgs
Public NotInheritable Class TextBoxBeforeTextChangingEventArgs
繼承
Object Platform::Object IInspectable TextBoxBeforeTextChangingEventArgs
屬性
ContractVersionAttribute MarshalingBehaviorAttribute ThreadingAttribute

Windows 需求

裝置系列
Windows 10 Fall Creators Update (已於 10.0.16299.0 引進)
API contract
Windows.Foundation.UniversalApiContract (已於 v5.0 引進)

備註

這個類別的實例會當做參數傳遞至 BeforeTextChanging 事件處理常式。

屬性

Cancel

取得或設定值，這個值表示是否要取消文字變更。
NewText

取得在文字方塊中輸入的新文字。

適用於