Special value available in formulas:
The button this property is part of, enabling multiple checked items in the app designer to share the same formula and be updated all at once.
Consider the fields Field1 and Field2, which should
only be considered to be valid if their values are
greater than 4. Without using the
Item value, the Valid
property of Field1 would need to use the formula Field1 > 4Field1 > 4 and the Valid
property of Field2 would need to use the formula Field2 > 4Field2 > 4.
Item, both formulas can read Item > 4Item > 4. This is useful
if you have many fields and you want to be able to update their
formulas all at once. To do so, click their check boxes in Calcapp
Creator and make sure that a checked field is selected. Then, when you
update a formula for one checked field, you update all the other
checked fields too, which is a great timesaver.
Item in exactly the same way you'd use the regular
name. Button1.VisibleButton1,Visible and Item.VisibleItem,Visible are equivalent, for
The text that appears before field values. If the field values are part of an attached file, the text of this property also appears in the attached file. If the field values are part of the email body itself, this also applies to the text of this property.
If this property is not set, no prologue is used.
Entering formulas in the inspector
If you use the inspector to enter a value for this property, you can
incorporate formulas by enclosing them within
Behind the scenes, Calcapp converts an inspector value with formulas to a single traditional formula. You can view this formula, or edit it directly, by selecting the Prologue property from the drop-down menu next to the formula bar.
The examples on this page use traditional formulas, where text strings and
other values are joined together using & and line breaks are produced
using NEWLINE. To
enter them in the inspector, be sure to enclose them within
}} markers. Alternatively, enter them in the formula bar.
Refer to the documentation for the Body property for a complex example on how to produce a text string incorporating field values using a formula.
temperature readings below!")IF(CriticalTemperature > 86; "Look closely at the
temperature readings below!")
Sets the text that appears before field values to "Look closely at the temperature readings below!" only if the value of the CriticalTemperature field is greater than 86.