Share via


Document.GetSyntaxRootAsync(CancellationToken) 方法

定義

以非同步方式取得語法樹狀結構的根節點。

public System.Threading.Tasks.Task<Microsoft.CodeAnalysis.SyntaxNode> GetSyntaxRootAsync (System.Threading.CancellationToken cancellationToken = default);
public System.Threading.Tasks.Task<Microsoft.CodeAnalysis.SyntaxNode?> GetSyntaxRootAsync (System.Threading.CancellationToken cancellationToken = default);
member this.GetSyntaxRootAsync : System.Threading.CancellationToken -> System.Threading.Tasks.Task<Microsoft.CodeAnalysis.SyntaxNode>
Public Function GetSyntaxRootAsync (Optional cancellationToken As CancellationToken = Nothing) As Task(Of SyntaxNode)

參數

cancellationToken
CancellationToken

傳回

如果 SupportsSyntaxTreeSyntaxNode 回 ,則會傳 nullfalse 。 如果多次呼叫,此函式會傳回相同的值。

適用於