User`s guide

234 VEE User’s Guide
5 Storing and Retrieving Test Results Chapter
Figure 139 Storing an Array of Records in a DataSet
Now retrieve the array of records and display it using the From
DataSet and Record Constant objects.
9 Select I/O ⇒ From ⇒ DataSet and place the object below For
Count. Leave the default file name, myFile. Click the Get
Records field to toggle from One to All. Finally, leave the
default of 1 in the expression field at the bottom.
With these settings, VEE looks at the DataSet in myFile and
finds all the records that fit the criterion in the expression
field. If you set Get Records to One, VEE would output the
first record that met the criterion in the expression field. The
1 signifies a TRUE condition meaning that all of the records fit
the criterion, so the entire array of records in the file will be
put on the output pin labeled Rec. Other uses of the
expression field are explained in other exercises. Consult
Help in the object menu for more information.
Connect the For Count sequence output pin to the sequence
input on the From Data Set object. This ensures the part of
the program that sends data to myFile executes before the
data is read from the file. You can turn on Show Data Flow to
show the order of events.
10 Select Data ⇒ Constant ⇒ Record and place the object below
To Data Set. Open the object menu and select Add Terminal
⇒