The .Net IComparer Interface - Part 4
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Part one described the sample application user experience.
Part two explained the main form engineering of the C# solution.
Part three described the C# solution IComparer sort machinery.
Part four here will explain the C# solution data display form, and wrap up with a brief description of the differences between the C# and VB.net example applications.
Download the sample C# / VB.net software at the GitHub repository.
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The btn_load click event method
At line 26
the textForm1 class load event adds and configures variable localRTB, a RichTextBox form control originally declared and initialized as a private class variable. At line 40, it places the line 21 recipe_text class property value in the localRTB text property. The Close button closes the form and returns focus to CSharp_Demo_App.
Past syntax and a few code differences, the VB.net and C# applications are almost the same. The VB.net ColumnSorter class and code-behind files avoid the namespace / partial class syntax of the C# code. Additionally, the VB.net code-behind files avoid the InitializeComponent() calls found in the C# versions. Beyond this and language syntax differences, these applications are almost exactly the same.
_______________
This article showed that the IComparer Interface makes it easy to offer flexible, dynamic sort features in Windows desktop applications. Developers can focus on the business rules and requirements - IComparer will do the hard work.
Part one described the sample application user experience.
Part two explained the main form engineering of the C# solution.
Part three described the C# solution IComparer sort machinery.
Part four here will explain the C# solution data display form, and wrap up with a brief description of the differences between the C# and VB.net example applications.
Download the sample C# / VB.net software at the GitHub repository.
________________
The btn_load click event method
btn_load_RTB_Clickof CSharp_Demo_App.cs assembles and formats the display text, placing the text in variable recipe_text. Then, it declares and initializes localTextForm1, a textForm1 class instance, at line 230. This method disables the CSharp_Demo_App button controls, passes the recipe_text value to localTextForm1, and finally shows localTextForm1. CSharp_Demo_App sets the localTextForm1 recipe_text property value to recipe_text at line 235.
At line 26
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| 1. The textForm1 class |
Past syntax and a few code differences, the VB.net and C# applications are almost the same. The VB.net ColumnSorter class and code-behind files avoid the namespace / partial class syntax of the C# code. Additionally, the VB.net code-behind files avoid the InitializeComponent() calls found in the C# versions. Beyond this and language syntax differences, these applications are almost exactly the same.
_______________
This article showed that the IComparer Interface makes it easy to offer flexible, dynamic sort features in Windows desktop applications. Developers can focus on the business rules and requirements - IComparer will do the hard work.