フォント

CalendarGridではセルごとに異なるフォントを指定できます。

Visual Basic
C#

Dim today As DateTime = DateTime.Today

GcCalendarGrid1.Content(today).Rows(1).Cells(0).Value = "Hello world"
GcCalendarGrid1.Content(today).Rows(1).Cells(0).CellStyle.Font = New Font("Arial", 9.0F)
GcCalendarGrid1.Content(today).Rows(2).Cells(0).Value = "Hello world"
GcCalendarGrid1.Content(today).Rows(2).Cells(0).CellStyle.Font = New Font("Consolas", 9.0F)
GcCalendarGrid1.ScrollIntoView(today)

var today = DateTime.Today;

gcCalendarGrid1.Content[today].Rows[1].Cells[0].Value = "Hello world";
gcCalendarGrid1.Content[today].Rows[1].Cells[0].CellStyle.Font = new Font("Arial", 9f);
gcCalendarGrid1.Content[today].Rows[2].Cells[0].Value = "Hello world";
gcCalendarGrid1.Content[today].Rows[2].Cells[0].CellStyle.Font = new Font("Consolas", 9f);
gcCalendarGrid1.ScrollIntoView(today);

結果は次のようになります。