EditMask controls
When an EditMask control has been defined as a spin control (that is, a control with up and down arrows the user clicks to cycle through predefined values), the Increment property specifies the increment of the spin arrows.
Increment is valid only for numeric and date datatypes. In a date datatype, the increment applies only to the year.
To set the increment of a spin control:
Select the Spin Control check box on the Mask tab page of the control’s Properties view.
The Increment field becomes active.
Select the mask datatype from the Type drop-down list.
Enter an increment value in the Spin Increment field.
The Increment property takes a double. The following line specifies an increment of 10 for an EditMask:
em_1.Increment = 10.0
