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Developing Windows Forms Applications on Mono  : Page 3

Developing cross-platform programs that rely on Windows Forms takes a big step forward with the latest release of the Mono platform.


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Testing Other Controls
The Calendar control and the DateTimePicker control work well on both platforms. Another simple application created for testing purposes calculates the Julian day from a selected date and displays it in a text box. You can use this same control in an ASP page with Mono's XSP tool or Apache with mod_mono.

Imports System Imports System.Globalization Public Class Form1 Inherits System.Windows.Forms.Form Private Sub Button1_Click( _ ByVal sender As System.Object, _ ByVal e As System.EventArgs) _ Handles Button1.Click ' Creates and initializes a JulianCalendar. Dim myCal As New JulianCalendar TextBox1.Text = myCal.GetDayOfYear( _ DateTimePicker1.Text) End Sub End Class

 
Figure 2. Julian Day Calculator with DateTime Picker: This Julian day calculator uses the built in JulianCalendar class to determine the day number with one line of code.
Not Fully Baked
Mono Windows Forms has come a long way since the initial release, and it's certainly possible to get started creating applications today, but you'll want to wait for the 1.2 release to make a realistic assessment of Mono's full capabilities. Still, this version shows clearly that cross-platform Windows Forms applications will be a reality in the near future.



Paul Ferrill, based in Chelsea, Alabama, has been writing about computers and software for almost 20 years. He has programmed in more languages than he cares to count, but now leans toward Visual Basic and C#.
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