Validation ensures that the data entered in the elements used for data entry is checked and verified within the framework of certain standards and rules. In this way, data integrity within the application is maintained and problems caused by user errors are prevented. Validation works according to the conditions defined by the developer and in cases where these conditions are not met, data entry is not allowed or messages informing the user are displayed.
Validation not only controls data entry, but also provides a logical structure that decides whether conditional actions will work or not. Validations that work exactly the same way as the conditional structure can be easily implemented with the flexible validation tools Kuika offers. These tools provide a powerful mechanism to evaluate the accuracy of data against different criteria.
Advantages of Using Validation
- Data Integrity: Ensures that your application works correctly by preventing users from entering incorrect data.
- User Experience: It guides users by showing warning or error messages in case of incorrect data entry.
- Flexibility: Allows developers to create project-specific validation rules.
- Time and Cost Savings: It facilitates the solution process by preventing problems caused by incorrect data entry at an early stage.
Validation Types and Examples
Validation can be customized according to different needs:
- No Blank Fields:
- For example, in a scenario where you want a text input box not to be left blank, you can add validation and ask the user to fill it.
- Error Message: “This field cannot be left blank.”
- Specific Format Checks:
- You can use email validation to ensure that an email address is entered in the correct format.
- Error Message: “Please enter a valid email address.”
- Minimum and Maximum Number of Characters:
- You can require the user to type a minimum of 8 characters in a password entry.
- Error Message: “Your password must be at least 8 characters.”
- Numeric Checks:
- You can verify if a number is within a certain range (for example, if the age entry is between 18 and 60).
- Error Message: “The age value must be between 18 and 60.”
- Special Conditions:
- When two fields in a form must match each other (for example, password and password confirmation fields).
- Error Message: “Passwords do not match.”
Validation Application with Kuika
Kuika offers a flexible validation infrastructure so that you can easily implement validation operations. To add validation to any element, you can define the necessary validation rules through the Properties Panel where you edit the properties of the element. You can follow these steps when adding validation:
- After logging in to the Kuika platform, open the project you will work on from the “Apps” screen.
- In the UI Design module, add an element from the Elements panel on the left side.
- Open the Properties Panel.
- Specify the relevant validation type (for example, “Cannot be left blank” or “Format Check”).
- Type the error message to be shown to the user.
- If necessary, create complex validations by combining multiple conditions.
Validation makes your application both reliable and user-friendly. This improves data quality and increases user satisfaction.
