Developing Windows Forms Applications on Mono  : Page 3

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.

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