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VB.NET Listings
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Total:
46 | Displaying: 21 - 30 | Pages: << 1 2 3 4 5 >> |
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The emphasis in ASP.NET lately has been on the creation of powerful server-side Web applications that work using any modern browser. But despite the ASP.NET server-side hoopla, client-side script inside a browser isn\'t going away. There are many good reasons to offload some processing to the browser, and performance is high on the list. To the customer, a Web page that uses client-side script or dynamic HTML is responsive, so it feels more like a...
Updated: 05/29/2005
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Technology Toolbox: VB.NET, VB6, ADO.NET D atabinding lets you build database apps with less coding by allowing binding between UI elements and specific database fields. But you need to build a supporting infrastructure to take full advantage of databinding. This infrastructure encapsulates the different aspects of data delivery and supports the many .NET models, including Web Forms, Windows Forms, and Web services. Figure 1. Use a Mix-and-Match Data Access Architecture. This article...
Updated: 05/29/2005
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Technology Toolbox: VB.NET, C# T he .NET Framework class library can do a lot for you if you get to know it starting with .NET objects. All .NET types (both built-in and user-defined) inherit from the common base class System.Object. Here I\'ll show you how to exploit the System.Object type\'s features to produce more robust and efficient code. I\'ll use C# examples here, but you can download both C# and VB.NET versions in my sample code . Any .NET type can access System.Object\'s methods...
Updated: 05/29/2005
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A little code snippet that lists files in a directory. Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click \' make a reference to a directory Dim di As New IO.DirectoryInfo(\"c:\") Dim diar1 As IO.FileInfo() = di.GetFiles() Dim dra As IO.FileInfo \'list the names of all files in the specified directory For Each dra In...
Updated: 05/29/2005
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Checking whether an Internet connection is available isn5;t always as easy as it sounds. Admittedly, there is a Windows API call that can check whether a connection exists, but it5;s extremely fragile and returns incorrect results if the machine has never had Internet Explorer configured correctly. Oops. The best method is to actually make a Web request and see whether it...
Updated: 05/29/2005
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The article assumes that you\'re familiar with Visual Basic .NET and the Visual Studio .NET Windows Forms designer. When developing Windows Forms controls it is often useful to provide your own, drop-down type editors for some of the control\'s properties. Custom type editors provide for richer design-time experience and they might be the deciding factor...
Updated: 05/29/2005
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In this final installment from VB.NET Core Classes in a Nutshell , learn how to approach the .NET FCL. Approaching the .NET FCL It may seem that, given both the newness and the enormity of the .NET platform, a substantial learning curve is required to \"learn\" the .NET FCL. In fact, this isn\'t the case; you can begin to take advantage of the...
Updated: 05/29/2005
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If you want to write application that constantly monitors some files, creates a log file, or anything else which runs constantly in the background while the machine is busy doing something else, the best way to this used to be to run a windows application continuously or at a regular interval with the use of Windows scheduler. There was one big disadvantage to this -- someone had to log...
Updated: 05/29/2005
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Have you ever wanted to write an application that constantly monitors a folder and raises events when there is any activity in that folder? In the good old days using VB6, you had to use windows APIs to do something like this, which was not very simple and required a lot of coding. The Microsoft .NET Framework has introduced classes like System.IO and System.Diagnostics, which contain the...
Updated: 05/29/2005
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I begin an implementation of an FTP client in managed code. (The basis for this article was a previously published knowledge base article from Microsoft.com, knowledge base 832670, How to Access a File Transfer Protocol Site by Using Visual Basic .NET . The code is uniquely my own, but some snippets were mined from that article.) While the implementation is not complete, the article is a good starting point that provides enough...
Updated: 05/29/2005
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VB.NET Listings
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Total:
46 | Displaying: 21 - 30 | Pages: << 1 2 3 4 5 >> |
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