How to: Get Information about Visual Basic Compiler Errors How to: Correct Run-Time Errors with the Exception Assistant Concepts Structured Exception Handling Overview for Visual Basic Reference Try...Catch...Finally Statement (Visual Basic)
<Microsoft.VisualBasic.ComClass()> _ <System.Runtime.InteropServices.ComVisibleAttribute(True)> _ 覆寫專案裡主項目類別的 GetAutomationObject 方法,以傳回要公開給 VBA 的類別執行個體 (Instance)。下列程式碼範例假設您要將 DocumentUtilities 類別公開給 VBA。 VB 複製 Protected Overrides Function ...
這個範例會假設電腦所使用的是 COM1。為了具有更大的彈性,程式碼應該允許使用者從可用序列埠清單中選取想要的序列埠。如需詳細資訊,請參閱HOW TO:在 Visual Basic 中顯示可用的序列埠。 這個範例使用 Try...Catch...Finally 區塊,確定應用程式會關閉連接埠並攔截逾時例外狀況。如需詳細資訊,請參閱Try......
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HOW TO:在 Visual Basic 中從文字檔讀取 HOW TO:在 Visual Basic 中從逗號分隔文字檔讀取 HOW TO:在 Visual Basic 中從固定寬度的文字檔讀取 HOW TO:在 Visual Basic 中以多種格式從文字檔讀取 HOW TO:在 Visual Basic 中從二進位檔案讀取 HOW TO:從我的文件中現有的文字檔讀取 (Visual Basic) HOW TO:...
#5 | How Do I: Create a One-To-Many Form using LINQ to SQL? (12 minutes, 29 seconds) #6 | How Do I: Upgrade Visual Basic Projects to Enable LINQ? (8 minutes, 28 seconds) #7 | How Do I: Get Started with LINQ to XML? (14 minutes, 10 seconds) #8 | How Do I: Enable ...
Created by world-renowned programming instructors Paul and Harvey Deitel, Visual Basic 2012 How to Program, Sixth Edition introduces all facets of the Visual Basic 2012 language through a hands-on approach with hundreds of working programs. This book has been thoroughly updated to reflect the major...
Function GetOSVersion uses the GetVersionExA API function to get operating system information. It looks at the returned platform ID, major, and minor version information to see which flavor or Windows is running. If the platform is 2 (Win32NT) and the major version is 6, then the system ...
This section describes how to get a property and set a property of a SQL Server Management Object (SMO) object in Visual Basic .NET. The code example shows how to get the Edition property of the Information object and how to set the SqlExecutionModes property of the ConnectionContext ...
#5 | How Do I: Create a One-To-Many Form using LINQ to SQL? (12 minutes, 29 seconds) #6 | How Do I: Upgrade Visual Basic Projects to Enable LINQ? (8 minutes, 28 seconds) #7 | How Do I: Get Started with LINQ to XML? (14 minutes, 10 seconds) #8 | How Do I: Enable ...