DependencyPropertyTValue(String, FuncIDependencyObject, TValue, Boolean) 构造函数
初始化依赖属性。
命名空间： TouchSocket.Core程序集： TouchSocket.Core (在 TouchSocket.Core.dll 中) 版本：4.0.0-beta.143+5fcca7a4e70968794985dc3793adc50531308be6
public DependencyProperty(
string propertyName,
Func<IDependencyObject, TValue> onFailedToGetTheValue,
bool placeholder
)
Public Sub New (
propertyName As String,
onFailedToGetTheValue As Func(Of IDependencyObject, TValue),
placeholder As Boolean
)
new :
propertyName : string *
onFailedToGetTheValue : Func<IDependencyObject, 'TValue> *
placeholder : bool -> DependencyProperty
参数
- propertyName String
- 属性名称
- onFailedToGetTheValue FuncIDependencyObject, TValue
- 当IDependencyObject获取属性失败时，回调该函数
- placeholder Boolean
- 占位重载，无实际意义