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RadioButton Web controls
     Checked property 2nd
     choices made, determining 2nd
     exercises 2nd
     GroupName property 2nd 3rd
     overview 2nd 3rd
     Q&A 2nd
     quizzes 2nd 3rd
     Text property 2nd
     versus CheckBox Web controls
     versus DropDownList Web controls
     versus RadioButtonList Web controls
RadioButtonList controls
     asthetic properties 2nd
     Items properties, enumerating programmatically 2nd
     layout properties 2nd 3rd 4th
         horizontal layouts 2nd
     overview 2nd
     SelectedItem/SelectedValue properties 2nd
RadioButtonList Web controls
     versus RadioButton Web controls
raising
     definition of
range input validation
     description of
range input validation. [See also Range Input Validator [NPN]]
RangeValidator Web controls
     limitations of
     overview 2nd
read only properties (objects)
read-only fields (editable GridViews) 2nd
Recent Projects list (Visual Web Developer)
records (database tables)
     adding to databases 2nd
     uniquely identifying 2nd
recovering passwords. [See PasswordRecovery Web controls]
red exclamation point icon (Visual Web Developer)
redirect forms
     versus postback forms 2nd
redundancy (code redundancy)
    reducing
         with subroutines and functions 2nd 3rd
referential integrity
    enforcing. [See foreign key constraints (relationships)]
regular expressions
     overview 2nd 3rd
RegularExpressionValidator Web controls
     overview 2nd 3rd
relationships (database designs)
    photo album application
         ER diagrams 2nd 3rd
         foreign key constraints 2nd 3rd 4th
         many-to-many relationships 2nd
         one-to-many relationships 2nd 3rd 4th 5th
         one-to-one relationships 2nd
         overview 2nd
Remember Me Next Time options
rendered markup
     GridView controls 2nd
rendered source code
     viewing 2nd 3rd
RepeatColumns properties
     list Web controls 2nd
RepeatLayout properties
     list Web controls 2nd 3rd 4th
required field validation
     description of 2nd 3rd
required field validation. [See also RequiredFieldValidator Web controls [NPN]]
RequiredFieldValidation controls
     photo album application 2nd
RequiredFieldValidator controls
     new picture interfaces (photo album application) 2nd 3rd 4th 5th 6th
RequiredFieldValidator Web controls
     client-side verus server-side validation 2nd
     ControlToValidate properties 2nd
     ErrorMessage properties 2nd
     overview 2nd
     Page.IsValid properties 2nd 3rd
     testing 2nd
     versus CompareValidator Web controls 2nd
RequireEmail properties (CreateUserWizard controls) 2nd
requirements
     photo album application 2nd
         category configurations 2nd
         pictures, uploading 2nd
         pictures, viewing 2nd
         use cases 2nd 3rd 4th 5th
         user account support 2nd
roles (user accounts)
     classifying users 2nd
root nodes (TreeView controls)
RowDeleted event handlers (photo album application) 2nd
rows (database tables). [See records (database tables)]
rules (access rules). [See access rules]
runat=[dq]server[dq]
     meaning of