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.NET and JavaScript UI Controls
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Change the Increments of Spin Button Elements

You can control the type and size of the increments in the spin button element on the WinCalendarCombo™. The following code demonstrates spinning in four-week increments using the SpinButtonIncrement and SpinButtonIncrementValue properties.

In Visual Basic:

Imports Infragistics.Win.UltraWinSchedule
...
Private Sub Change_the_Increments_of_Spin_Button_Elements_Load(ByVal sender As Object, _
  ByVal e As System.EventArgs) Handles MyBase.Load
	' Change the value in week increments
	Me.UltraCalendarCombo1.SpinButtonIncrement = SpinIncrementUnit.Weeks
	' Change the value so it increments 4 weeks every click
	Me.UltraCalendarCombo1.SpinButtonIncrementValue = 4
End Sub

In C#:

using Infragistics.Win.UltraWinSchedule;
...
private void Change_the_Increments_of_Spin_Button_Elements_Load(object sender, EventArgs e)
{
	// Change the value in week increments
	this.ultraCalendarCombo1.SpinButtonIncrement = SpinIncrementUnit.Weeks;
	// Change the value so it increments 4 weeks every click
	this.ultraCalendarCombo1.SpinButtonIncrementValue = 4;
}