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If

Purpose 

Evaluates a Boolean calculation and performs a conditional action based on that evaluation.

Format 

If [<Boolean calculation>]

Options 

Click Specify to define the Boolean calculation. In the Specify Calculation dialog box, type the calculation you want evaluated, or use the field list (on the left) and the functions list (on the right) with the mathematical and text operators to build the calculation.

Compatibility 

 

Where the script step runs	Supported
FileMaker Pro	Yes
FileMaker Server scheduled script	Yes
FileMaker Go	Yes
Custom Web Publishing	Yes
FileMaker WebDirect	Yes
Runtime solution	Yes

Originated in 

FileMaker Pro 6.0 or earlier

Description 

If the calculation result is any number except zero, the calculation evaluates to True and the subsequent script steps are executed. If the calculation result is zero, no data, or does not resolve into a number, then the calculation evaluates to False and the subsequent script steps are not executed.

Every If step must have a corresponding End If script step somewhere after the If step and at the same indentation. Whenever you use an If script step, the Manage Scripts feature automatically enters an End If step.

You can also add additional conditions by using the Else If script step and Else script step.

Note  If you do not specify a calculation or if the calculation is unsuccessful, it will evaluate as False. Use the Get(LastError) function to capture these errors.

Example 1 

Performs a find. If no records are found, displays all records and sorts.

Perform Find [Restore]
If [Get (FoundCount) = 0]
Show All Records
Sort Records [Restore; No dialog]
End If

Example 2 

Performs a find. If no records are found, displays a custom dialog. If records are found, sorts the found set.

Perform Find [Restore]
If [Get ( FoundCount ) = 0]
Show Custom Dialog ["Find Records"; "No records were found."]
Else
Sort Records [Restore; No dialog]
End If

Example 3 

Performs a find. If no records are found, displays a custom dialog. If one record is found, goes to the Invoice Details layout. If more than one record is found, goes to the Invoices layout.

Perform Find [Restore]
If [Get (FoundCount) = 0]
Show Custom Dialog ["Find Records"; "No record was found."]
Else If [Get (FoundCount) = 1]
Go to Layout ["Invoice Details"]
Else
Go to Layout ["Invoices"]
End If

Example 4 

Performs a find. If no records are found, displays a custom dialog so the user can run the Find Invoices script to search again. If one record is found, goes to the Invoice Details layout. If more than one record is found, goes to the Invoices layout.

Script: Find Invoices

Perform Find [ ]
If [Get ( FoundCount ) = 0]
Show Custom Dialog ["No Record Found"; "No records were found. Do you want to search again?"]
If [Get ( LastMessageChoice ) = 1]
#Calls this script again as a sub-script
Perform Script ["Find Invoices"]
Else
Show All Records
End If
Else If [Get ( FoundCount ) = 1]
Go to Layout ["Invoice Details"]
Else
Go to Layout ["Invoices"]
End If
Sort Records [Restore; No dialog]

Related topics 

Defining calculation fields

If function

If structure examples

Script steps reference (alphabetical list)

Script steps reference (category list)

About formulas