National Instruments 374318A-01 用户手册

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Use the Measurement Studio switch and LED array controls as an array of 
Boolean controls on a Windows Forms user interface. You typically use a 
switch array control, as shown in Figure 2-10, to control ports of a digital 
line or values of an array. You typically use an LED array control, also 
shown in Figure 2-10, to visualize ports of a digital line or values of an 
array.

Figure 2-10.  Windows Forms Switch and LED Array Controls

With the switch and LED array controls and the classes that interface with 
the controls, you can perform the following operations:

•

Set values by passing an array of data.

•

Modify the number of controls displayed based on the length of the 
specified values.

•

Receive notification before or after the state of the control changes.

•

Configure how the control behaves when you click it with the mouse 
or press the spacebar when the control has focus.

•

Configure the appearance of the control.

•

Make the control background transparent.

•

Configure the LED controls to blink while they are on or off and 
configure the rate at which the LED controls blink.

For more information about using the switch and LED array controls, refer to the 

Using the Measurement Studio Windows Forms Control Array .NET Controls topic in the 
NI Measurement Studio Help.