FieldInclusion property
Special value available in formulas:
Item
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.
Using 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.
Use Item in exactly the same way you'd use the regular
name. Button1.VisibleButton1,Visible and Item.VisibleItem,Visible are equivalent, for
instance.
Which fields are sent to a server. These are the allowed values:
| Value | Meaning |
|---|---|
FieldInclusion.Screen
|
Sends all fields that are on the same screen as the button. |
FieldInclusion.All
|
Sends all fields of the app. |
FieldInclusion.Custom
|
Sends only the fields returned by the IncludedFields property. |
Examples
Makes a server relay button send all fields if the value of Field1 is greater than 4. Otherwise, only the fields returned from the IncludedFields property are sent.
This formula is associated with the OnPress property of a formula button, and causes certain fields to be sent to a server when the button is pressed. All fields are sent if the value of Field1 is greater than 4. Otherwise, only the fields returned from the IncludedFields property are sent.