The variable of the Bar Code control corresponds to the name of the Bar Code control. This variable is a text variable.
Displaying a bar code in a Bar Code control
Retrieving in a Bar Code control the value read by a specific device
Note: If the control is associated with an item found in a data file, the entered value is automatically retrieved by using 屏幕填充到数据库表. See Linking a Bar Code control to an item for more details.
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All you have to do is configure your product as follows: