228 Chapter 5
Storing and Retrieving Test Results
Using Records to Store Mixed Data Types
1. Select Data ⇒ Access Record ⇒ Set Field and place it to the
right of
Build Record. Connect the output from Build Record to the
rec input of Set Field. The title will be rec.field = b.
Set Field works by assigning the expression on the right side of the
assignment symbol (
=) to the left hand side. Therefore, the specified field
of
rec is modified to contain the value(s) from the right hand side. The
rest of the record is unchanged. You connect the incoming record to
rec
and the incoming new value to
b. The modified record will be put on the
data output terminal labeled
rec.
Note The Set Field object is a Formula configured with inputs and an
expression, like the formulas in the Function & Object Browser.
2. Edit the expression to
rec.data[*]=b to change the value of the four
element array in the data field. (You need to use the array
[*] notation,
because you are changing the whole array in the field of this record.) You
will put the new values for the array on the input terminal
b.
3. Select
Data ⇒ Constant ⇒ Real64 and place it under the Build
Record
object. Open the object menu, and select Properties. Select
1D Array under Configuration, then edit the Size to 4, and click
OK.
If the new values for the record field are contained in an array, it must
have the same size as the current array.
Enter the values
1, 2, 3, 4 into Real64 by highlighting the first entry and
using the
Tab key to move to subsequent entries. (Do not press the Tab
key after the last entry.) Connect it to the Set Field (titled
rec.field=b) input labeled b.
Now use the
Get Field object to extract the field rec.data from the
record and display the results.
4. Select
Data ⇒ Access Record ⇒ Get Field and place the object
under the
Set Field (rec.field=b) object. Edit the Get Field
object expression from
rec.field to rec.data. Connect the data
output of
rec.field = b to the data input of rec.field.
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