BinderBase<T>.IValueSource.TryGetValue 方法

  • 參考

定義

命名空間:
System.CommandLine.Binding
組件:
System.CommandLine.dll

嘗試從系結內容取得值。 傳回值指出是否有符合指定之值描述元的值。

 virtual bool System.CommandLine.Binding.IValueSource.TryGetValue(System::CommandLine::Binding::IValueDescriptor ^ valueDescriptor, System::CommandLine::Binding::BindingContext ^ bindingContext, [Runtime::InteropServices::Out] System::Object ^ % boundValue) = System::CommandLine::Binding::IValueSource::TryGetValue;
bool IValueSource.TryGetValue (System.CommandLine.Binding.IValueDescriptor valueDescriptor, System.CommandLine.Binding.BindingContext? bindingContext, out object? boundValue);
abstract member System.CommandLine.Binding.IValueSource.TryGetValue : System.CommandLine.Binding.IValueDescriptor * System.CommandLine.Binding.BindingContext * obj -> bool
override this.System.CommandLine.Binding.IValueSource.TryGetValue : System.CommandLine.Binding.IValueDescriptor * System.CommandLine.Binding.BindingContext * obj -> bool
Function TryGetValue (valueDescriptor As IValueDescriptor, bindingContext As BindingContext, ByRef boundValue As Object) As Boolean Implements IValueSource.TryGetValue

參數

valueDescriptor
IValueDescriptor

要系結之值的描述元。

bindingContext
BindingContext

系結值的來源系結內容。

boundValue
Object

當這個方法傳回時，會包含系結值。

傳回

Boolean

如果找到相符值，則為 true，否則為 false。

實作

TryGetValue(IValueDescriptor, BindingContext, Object)

適用於