Using Statement (Visual Basic)Article 09/15/2021 12 contributors Feedback In this article Syntax Parts resourcelist Parts Remarks Show 5 more Declares the beginning of a Using block and optionally acquires the system resources that the block controls. Syntax VB Copy Using { resourcelist |...
Using Statement (Visual Basic)Article 09/15/2021 12 contributors Feedback In this article Syntax Parts resourcelist Parts Remarks Show 5 more Declares the beginning of a Using block and optionally acquires the system resources that the block controls. Syntax VB Copy Using { resourcelist |...
public virtual void VisitUsingStatement(Microsoft.CodeAnalysis.VisualBasic.Syntax.UsingStatementSyntax node); 参数 node UsingStatementSyntax 适用于 产品版本 Roslyn 4.2.0, 4.3.0, 4.4.0, 4.5.0, 4.6.0, 4.7.0, 4.8.0, 4.9.2, 3.0.0, 3.1.0, 3.2.0, 3.2.1, 3.3...
開頭為 Using 區塊的 Using 語句。 這個語句一律會當做 UsingBlock 的 Begin 發生,而 Using 的主體是該 UsingBlock 的主體。C# 複製 public sealed class UsingStatementSyntax : Microsoft.CodeAnalysis.VisualBasic.Syntax.StatementSyntax繼承 Object SyntaxNode VisualBasicSyntaxNode StatementSyntax UsingStatementS...
Inherits Statement Interface 문 Mid 문 Module 문 Namespace 문 On Error 문 Operator Statement Option <keyword> 문 Option Compare 문 Option Explicit 문 Option Infer 문 Option Strict 문 Property 문 Q-Z 문 절 선언 컨텍스트 및 기본 액세스 수준 특...
請清除在 Finally 區段的程式碼 (例如關閉檔案並釋出物件的程式碼)。 如果您不需要攔截例外狀況,但必須清除資源,可以考慮使用 Using 陳述式,而非 Finally 區段。 如需詳細資訊,請參閱Using 陳述式 (Visual Basic)。 Catch 區塊中的錯誤篩選 Catch 區塊可使用三種選項來篩選特定錯誤。 在其中一種選項中,錯誤會...
8.5.3. Managing Resources with the Using Statement Lines 17–20 introduce the Using statement, which simplifies writing code in which you obtain, use and release a resource. In this case, the resource is a SaveFileDialog. Windows and dialogs are limited system resources that occupy memory and ...
Visual Basic 6.0 Runtime Extended Files: selected ActiveX control OCX files, libraries, and tools shipping with the IDE media and as an online release. The Visual Basic 6.0 IDE support lifetime VB6 development is no longer supported. This support statement does not change the support policy for...
Visual Basic 6.0 Runtime Extended Files: selected ActiveX control OCX files, libraries, and tools shipping with the IDE media and as an online release. The Visual Basic 6.0 IDE support lifetime VB6 development is no longer supported. This support statement does not change the support policy for...
Visual Basic 6.0 Runtime Extended Files: selected ActiveX control OCX files, libraries, and tools shipping with the IDE media and as an online release. The Visual Basic 6.0 IDE support lifetime VB6 development is no longer supported. This support statement does not change the support policy for...