Windows® Phone 7.5 Unleashed

Chapter 23. Input Validation

In This Chapter

• Property setter validation

• Understanding binding errors

• Customizing control visual states in Expression Blend

• A reusable custom validation component

• Creating a custom ValidationSummary control

• Asynchronous and composite validation

• Setting control enabled states based on the presence of validation errors

• Hiding validation errors until the user has had a chance to fill out the form

• Validating a TextBox as the user types

Input validation is the process of validating input to an application before it is used. Most line-of-business applications rely on input validation to ensure that user input is correctly formatted, meaningful, safe to use, and that it properly conveys the intent of ...