40

Building ASP.NET Applications with Delphi and Advantage Database Server

ike Delphi’s other development platforms, Delphi for .NET offers a wide range of data access options for ASP.NET developers. These include support for the generic foundation class library (FCL) data access classes (ODBC and OleDb), dbExpress drivers, BDP for .NET… Continue Reading

Uploading Files with ASP.NET

Something that could not reasonably be done under ASP without a third party component was the uploading of files to the web server even though the uses of this feature range from content management systems to online cost estimates for… Continue Reading

1,287

Directory Browsing the .NET Way

Enumerating Drives The first thing we should find out is which drives actually are available for browsing on the computer (listdrives.aspx): <% @Page Language=”C#” %> <% @Import Namespace=”System.IO” %> <% string[] achDrives = Directory.GetLogicalDrives(); int nNumOfDrives = achDrives.Length; Response.Write(“<ul>”); for… Continue Reading

24

Generating graphics on the fly

Generating a graphic Before burdening us with the ballast of ASP.NET, we do a dry run with a simple command line program – and then use this source code as the base of our ASP.NET script. The difference lies in… Continue Reading

22

Saving HTML 5 Canvas as Image on the server using ASP.NET

HTML 5 has a very nice drawing API in the form of new Canvas element. Canvas is used for rendering graphs, game graphics, or other visual images on the fly. Canvas is a rectangular area that we can add to… Continue Reading