You can use data validation to present an error message alongside an output
number field. Sometimes you want to display the message in the field itself,
though. This blog post shows you two ways to accomplish this.
Is it possible to enter decimal numbers in a Calcapp app on an iPhone? John
posed this question and received a lengthy reply from our co-founder David.
(Short answer: Yes, but it's somewhat awkward, and this issue can't be easily
fixed.)
Making hidden fields visible can be useful when you're developing your app.
Add a "debug mode" switch to your first screen and tie the Visible property of
all hidden fields to this debug switch to easily make all hidden fields
visible. Then, hide the switch before you share the app.
Use formulas to hide and validate fields, make buttons grayed-out, determine
the recipients of reports and more through calculated properties. A video
tutorial introduces the new feature. You can now reference fields from other
panels in formulas by clicking on them. Also, our learning resources have been
thoroughly updated.
In our very first video tutorial, we build a user registration form which
makes heavy use of calculated properties. It is available as a template in
Calcapp Creator for use in your own apps.
You can now reference fields from other panels by clicking on them when you're
editing a formula. You can also reference buttons and the other items that
make up an app from your formulas by clicking on them.
Fields, buttons, calculation panel groups, text boxes, list panel options and
panels now offer a variety of calculated properties you can use to make your
apps more dynamic. This post offers the complete list.
Use formulas to hide and validate fields, make buttons grayed-out, determine
the recipients of reports and more through calculated properties. These
formulas are evaluated when your app is run and make it possible to build far
more dynamic, complex apps.
Will Calcapp ever support importing your spreadsheets directly? Allan posed
this question to us and received a lengthy reply from our co-founder David.
This update brings cross-references, enabling you to build large,
interconnected apps. Flag suspicious values with data validation and send
reports as PDF files.
Calcapp enables you to create apps that might otherwise have been
created using a spreadsheet. Create apps yourself without
time-consuming and expensive custom software development.