![]() ![]() It implemented that client as a class library that could be used from any sort of application. “ Write an FTP Client with VB.NET to Bridge Legacy Software ” began the process of building an FTP client application. (A less ambiguous term for GUI client is presentation layer.) This section refers to the client code and not a GUI. Client can be code that talks to a server, but it also can mean GUI. Add Get File List to Your FTP ClientĬlient is one of those words that can be a bit ambiguous. Although the example it presents is implemented with VS.NET 2005, you could implement it in VS.NET 2003 with simple control substitutions. It also demonstrates a couple of patterns that you should know. It further explores the TcpClient namespace and using new controls in Visual Studio. This column presents an assortment of skills you might need to complete the Windows FTP solution or similar kinds of applications. ![]() However, I don’t have that much time or enough space in this forum. I could probably write an entire book on building a Windows FTP application if I elected to cover design, implementation, patterns, GUI design techniques, and testing and deployment issues. It extends that FTP client and begins the implementation of a Windows FTP GUI. VB Migration Partner automatically accounts for all these minor differences, so that the generated VB.NET is guaranteed to work like the original VB6 code.This Visual Basic Today column builds on the previous column, “ Write an FTP Client with VB.NET to Bridge Legacy Software ,” which introduced an FTP client with some basic FTP capabilities. Second, the Visible property of ToolStripMenuItem and ToolStripSeparator objects return False both if you set it to False or if you set the parent menu’s Visible property to False. First, when a top-level menu becomes visible all the controls on the form are shifted down to make room for the menu likewise, when a top-level menu becomes invisible, all controls on the form are shifted up. However, there are two important differences. NET MenuStrip, ToolStripMenuItem, and ToolStripSeparator objects all support the Visible property. The VB6 Shortcut property maps to the ShortcutKeys property under VB.NET. However, this property doesn’t affect the menu’s appearance or behavior. VB Migration Partner supports this property, so that the VB.NET code always compiles correctly. The NegotiatePosition property isn’t supported by. VB Migration Partner is aware of this difference and fires the Click event at the right time even for dropdown menus. If you need to handle the Click event of dropdown menus you should use the DropDownOpened event instead. For this reason, event handlers generated by the Upgrade Wizard might be executed at the wrong time and cause runtime errors or bogus results. NET fires the Click event before the dropdown menus becomes visible. VB.NET menus support the Click event however, in VB6 the Click event of dropdown menu fires immediately after the menu becomes visible, whereas. VB Migration Partner can correctly handle these assignments and correctly transforms a menu element into a separator (or vice versa), depending on the value being assigned to the Caption property. If you assign a “-“ (dash) character to the Caption property, you actually transform the menu element into a menu separator under VB6, even at runtime. NET, but there is an important difference. The Caption property maps to the Text property under. VB Migration Partner handles this important difference internally and generates VB.NET code that behaves like the original VB6 code in virtually all cases. (A VB6 separator is a plain menu object whose Caption property is set to the “-“ character.) ![]() Separator bars are translated as ToolStripSeparator objects.Drop-down menus are translated as ToolStripMenuItem objects.Top-level menus are translated as MenuStrip objects there is only one MenuStrip object in each form, whose child controls are drop-down menus.VB.NET uses three different objects to render the VB6 Menu object. Top-level menus, drop-down menus, and separators ![]()
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