Essential VB .NET fast by John Cowell BSc (Hons), MPhil, PhD (auth.)

By John Cowell BSc (Hons), MPhil, PhD (auth.)

Visual easy .NET is a part of the visible Studio .NET kinfolk of goods as well as visible C++ and the hot programming language visible C#. whereas the syntax and elegance of visible simple .NET is particularly just like previous types of visible easy this model has many very important advancements, to be able to make sure that visible easy is still as Microsoft's preferred built-in improvement surroundings (IDE) for program improvement. no matter if you need to enhance purposes for home windows or for the realm large net (WWW) visible easy .NET is a superb instrument for generating trustworthy, expert purposes speedy. visible easy has set the traditional as the most effective improvement environments for home windows purposes, yet more and more we wish to create functions for the WWW that allows you to run inside a browser setting. This model of visible simple presents a good set of instruments for doing this. The WWW is part of the web and initially web content have been written in uncomplicated HTML and have been static, that's you'll examine them and stick to hyperlinks to different pages yet you couldn't do anything. To boost an internet program which could reply to person requests, for instance, interpreting a database, and updating the net web page, different instruments except HTML are wanted. visible easy .NET makes use of a longer model of ASP known as ASP.NET for doing this.

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If this is set to any character, apart from a null, whatever you type that character will appear, although the actual text typed will be available to your application. The usual character used is *. Another curious interaction between properties is that if the Multiline property is set to true the PasswordChar property is ignored. The PictureBox control The PictureBox control is used to display pictures. The Image property is used to specify the image. Most common graphics formats are supported including bitmap, icon, enhanced metafile, JPEG and GIF.

For example, the number of people working in a company is likely to be a whole number, that is an Integer data type; your name can be represented by a series of characters, that is a String data type, and so on. Visual Basic is one of the few languages which allow you to use variables without first declaring what type they are. Visual Basic does offer you the option of declaring the type of variables before using them, and there are some important benefits to doing this. The type of a variable determines what operations you can carry out on it, for example you cannot multiply a text string.

The Image property is used to specify the image. Most common graphics formats are supported including bitmap, icon, enhanced metafile, JPEG and GIF. 7 shows this control. The three images are all the same size, resolution and format, but they are displayed differently because of the SizeMode and BorderStyle properties. 7 The PictureBox control. The SizeMode property has one of four values: • • • • AutoSize: The PictureBox is resized to fit the picture. Centerlmage: If the PictureBox is larger than the picture, the whole image is displayed centrally positioned.

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