Validation

Some ideas for integrating a validation framework into QuickDialog.

Simple Validation

Validation to meet CoreData models (and probably other types)

Primitive formats

• Text length
• Maximum length (also prevent more typing)
• Minimum length
• Numeric only
• int
• float
• Alphabetic only
• Uppercase only
• Lowercase only

Specific formats

• Email address
• URL scheme
• Should support validating if the URL meets an RFC
• Perhaps even build it does a quick Reachability check to see if the URL works?

Displaying an error

There are lots of way to show an error however I believe 2 ways are the most used and most appreciated by users.

• Color the whole cell
• If it's accepted, color it green* or leave it white (*or whatever color the developer had set)
• If it's wrong, color it red* (*or whatever color the developer had set)
• Small icon
• A small icon at the end of the cell indicating if it's accepted or wrong (checkmark or cross)